зеркало из https://github.com/github/ruby.git
9363 строки
197 KiB
C
9363 строки
197 KiB
C
/**********************************************************************
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eval.c -
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$Author$
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$Date$
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created at: Thu Jun 10 14:22:17 JST 1993
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Copyright (C) 1993-2002 Yukihiro Matsumoto
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Copyright (C) 2000 Network Applied Communication Laboratory, Inc.
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Copyright (C) 2000 Information-technology Promotion Agency, Japan
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**********************************************************************/
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#include "ruby.h"
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#include "node.h"
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#include "env.h"
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#include "util.h"
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#include "rubysig.h"
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#include <stdio.h>
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#include <setjmp.h>
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#include "st.h"
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#include "dln.h"
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/* Make alloca work the best possible way. */
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#ifdef __GNUC__
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# ifndef atarist
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# ifndef alloca
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# define alloca __builtin_alloca
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# endif
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# endif /* atarist */
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#else
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# if defined(HAVE_ALLOCA_H)
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# include <alloca.h>
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# elif !defined(alloca)
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char *alloca();
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# endif
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#endif /* __GNUC__ */
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#ifdef _AIX
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#pragma alloca
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#endif
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#ifdef HAVE_STDARG_PROTOTYPES
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#include <stdarg.h>
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#define va_init_list(a,b) va_start(a,b)
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#else
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#include <varargs.h>
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#define va_init_list(a,b) va_start(a)
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#endif
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#ifndef HAVE_STRING_H
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char *strrchr _((const char*,const char));
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef __BEOS__
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#include <net/socket.h>
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#endif
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#ifdef __MACOS__
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#include "macruby_private.h"
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#endif
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#ifndef setjmp
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#ifdef HAVE__SETJMP
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#define setjmp(env) _setjmp(env)
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#define longjmp(env,val) _longjmp(env,val)
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#endif
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#else
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#ifndef NT
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struct timeval {
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long tv_sec; /* seconds */
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long tv_usec; /* and microseconds */
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};
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#endif /* NT */
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#endif
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#include <signal.h>
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#include <errno.h>
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#if defined(__VMS)
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#pragma nostandard
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#endif
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#include <sys/stat.h>
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VALUE rb_cProc;
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static VALUE rb_cBinding;
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static VALUE proc_invoke _((VALUE,VALUE,int,VALUE));
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static VALUE rb_f_binding _((VALUE));
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static void rb_f_END _((void));
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static VALUE rb_f_block_given_p _((void));
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static VALUE block_pass _((VALUE,NODE*));
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static VALUE rb_cMethod;
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static VALUE method_call _((int, VALUE*, VALUE));
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static VALUE rb_cUnboundMethod;
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static VALUE umethod_bind _((VALUE, VALUE));
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static VALUE rb_mod_define_method _((int, VALUE*, VALUE));
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static int scope_vmode;
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#define SCOPE_PUBLIC 0
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#define SCOPE_PRIVATE 1
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#define SCOPE_PROTECTED 2
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#define SCOPE_MODFUNC 5
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#define SCOPE_MASK 7
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#define SCOPE_SET(f) (scope_vmode=(f))
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#define SCOPE_TEST(f) (scope_vmode&(f))
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int ruby_safe_level = 0;
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/* safe-level:
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0 - strings from streams/environment/ARGV are tainted (default)
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1 - no dangerous operation by tainted value
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2 - process/file operations prohibited
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3 - all genetated objects are tainted
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4 - no global (non-tainted) variable modification/no direct output
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*/
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static VALUE safe_getter _((void));
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static void safe_setter _((VALUE val));
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void
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rb_secure(level)
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int level;
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{
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if (level <= ruby_safe_level) {
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rb_raise(rb_eSecurityError, "Insecure operation `%s' at level %d",
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rb_id2name(ruby_frame->last_func), ruby_safe_level);
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}
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}
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void
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rb_check_safe_str(x)
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VALUE x;
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{
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if (ruby_safe_level > 0 && OBJ_TAINTED(x)){
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if (ruby_frame->last_func) {
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rb_raise(rb_eSecurityError, "Insecure operation - %s",
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rb_id2name(ruby_frame->last_func));
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}
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else {
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rb_raise(rb_eSecurityError, "Insecure operation: -r");
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}
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}
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rb_secure(4);
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if (TYPE(x)!= T_STRING) {
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rb_raise(rb_eTypeError, "wrong argument type %s (expected String)",
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rb_class2name(CLASS_OF(x)));
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}
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}
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NORETURN(static void print_undef _((VALUE, ID)));
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static void
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print_undef(klass, id)
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VALUE klass;
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ID id;
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{
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rb_name_error(id, "undefined method `%s' for %s `%s'",
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rb_id2name(id),
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(TYPE(klass) == T_MODULE) ? "module" : "class",
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rb_class2name(klass));
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}
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static ID removed, singleton_removed, undefined, singleton_undefined;
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#define CACHE_SIZE 0x800
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#define CACHE_MASK 0x7ff
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#define EXPR1(c,m) ((((c)>>3)^(m))&CACHE_MASK)
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struct cache_entry { /* method hash table. */
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ID mid; /* method's id */
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ID mid0; /* method's original id */
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VALUE klass; /* receiver's class */
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VALUE origin; /* where method defined */
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NODE *method;
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int noex;
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};
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static struct cache_entry cache[CACHE_SIZE];
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void
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rb_clear_cache()
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{
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struct cache_entry *ent, *end;
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ent = cache; end = ent + CACHE_SIZE;
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while (ent < end) {
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ent->mid = 0;
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ent++;
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}
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}
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static void
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rb_clear_cache_by_id(id)
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ID id;
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{
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struct cache_entry *ent, *end;
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ent = cache; end = ent + CACHE_SIZE;
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while (ent < end) {
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if (ent->mid == id) {
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ent->mid = 0;
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}
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ent++;
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}
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}
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static void
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rb_clear_cache_by_class(klass)
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VALUE klass;
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{
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struct cache_entry *ent, *end;
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ent = cache; end = ent + CACHE_SIZE;
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while (ent < end) {
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if (ent->origin == klass) {
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ent->mid = 0;
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}
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ent++;
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}
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}
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void
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rb_add_method(klass, mid, node, noex)
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VALUE klass;
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ID mid;
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NODE *node;
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int noex;
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{
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NODE *body;
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if (NIL_P(klass)) klass = rb_cObject;
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if (ruby_safe_level >= 4 && (klass == rb_cObject || !OBJ_TAINTED(klass))) {
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rb_raise(rb_eSecurityError, "Insecure: can't define method");
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}
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if (OBJ_FROZEN(klass)) rb_error_frozen("class/module");
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rb_clear_cache_by_id(mid);
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body = NEW_METHOD(node, noex);
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st_insert(RCLASS(klass)->m_tbl, mid, body);
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}
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static NODE*
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search_method(klass, id, origin)
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VALUE klass, *origin;
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ID id;
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{
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NODE *body;
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if (!klass) return 0;
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while (!st_lookup(RCLASS(klass)->m_tbl, id, &body)) {
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klass = RCLASS(klass)->super;
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if (!klass) return 0;
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}
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if (origin) *origin = klass;
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return body;
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}
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static NODE*
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rb_get_method_body(klassp, idp, noexp)
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VALUE *klassp;
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ID *idp;
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int *noexp;
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{
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ID id = *idp;
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VALUE klass = *klassp;
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VALUE origin;
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NODE * volatile body;
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struct cache_entry *ent;
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if ((body = search_method(klass, id, &origin)) == 0 || !body->nd_body) {
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/* store empty info in cache */
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ent = cache + EXPR1(klass, id);
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ent->klass = klass;
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ent->origin = klass;
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ent->mid = ent->mid0 = id;
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ent->noex = 0;
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ent->method = 0;
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return 0;
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}
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/* store in cache */
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ent = cache + EXPR1(klass, id);
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ent->klass = klass;
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ent->noex = body->nd_noex;
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body = body->nd_body;
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if (nd_type(body) == NODE_FBODY) {
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ent->mid = id;
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*klassp = body->nd_orig;
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ent->origin = body->nd_orig;
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*idp = ent->mid0 = body->nd_mid;
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body = ent->method = body->nd_head;
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}
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else {
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*klassp = origin;
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ent->origin = origin;
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ent->mid = ent->mid0 = id;
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ent->method = body;
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}
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if (noexp) *noexp = ent->noex;
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return body;
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}
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static void
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remove_method(klass, mid)
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VALUE klass;
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ID mid;
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{
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NODE *body;
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if (klass == rb_cObject) {
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rb_secure(4);
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}
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if (ruby_safe_level >= 4 && !OBJ_TAINTED(klass)) {
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rb_raise(rb_eSecurityError, "Insecure: can't remove method");
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}
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if (OBJ_FROZEN(klass)) rb_error_frozen("class/module");
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if (!st_delete(RCLASS(klass)->m_tbl, &mid, &body) || !body->nd_body) {
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rb_name_error(mid, "method `%s' not defined in %s",
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rb_id2name(mid), rb_class2name(klass));
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}
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rb_clear_cache_by_id(mid);
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if (FL_TEST(klass, FL_SINGLETON)) {
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rb_funcall(rb_iv_get(klass, "__attached__"), singleton_removed, 1, ID2SYM(mid));
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}
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else {
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rb_funcall(klass, removed, 1, ID2SYM(mid));
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}
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}
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void
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rb_remove_method(klass, name)
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VALUE klass;
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const char *name;
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{
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remove_method(klass, rb_intern(name));
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}
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static VALUE
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rb_mod_remove_method(mod, name)
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VALUE mod, name;
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{
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remove_method(mod, rb_to_id(name));
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return mod;
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}
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void
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rb_disable_super(klass, name)
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VALUE klass;
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const char *name;
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{
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VALUE origin;
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NODE *body;
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ID mid = rb_intern(name);
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body = search_method(klass, mid, &origin);
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if (!body || !body->nd_body) {
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print_undef(klass, mid);
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}
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if (origin == klass) {
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body->nd_noex |= NOEX_UNDEF;
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}
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else {
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rb_add_method(klass, mid, 0, NOEX_UNDEF);
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}
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}
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void
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rb_enable_super(klass, name)
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VALUE klass;
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const char *name;
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{
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VALUE origin;
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NODE *body;
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ID mid = rb_intern(name);
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body = search_method(klass, mid, &origin);
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if (!body) {
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print_undef(klass, mid);
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}
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if (!body->nd_body) {
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remove_method(klass, mid);
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}
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else {
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body->nd_noex &= ~NOEX_UNDEF;
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}
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}
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static void
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rb_export_method(klass, name, noex)
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VALUE klass;
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ID name;
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ID noex;
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{
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NODE *body;
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VALUE origin;
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if (klass == rb_cObject) {
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rb_secure(4);
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}
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body = search_method(klass, name, &origin);
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if (!body && TYPE(klass) == T_MODULE) {
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body = search_method(rb_cObject, name, &origin);
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}
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if (!body) {
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print_undef(klass, name);
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}
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if (body->nd_noex != noex) {
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if (klass == origin) {
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body->nd_noex = noex;
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}
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else {
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rb_add_method(klass, name, NEW_ZSUPER(), noex);
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}
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}
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}
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int
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rb_method_boundp(klass, id, ex)
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VALUE klass;
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ID id;
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int ex;
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{
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struct cache_entry *ent;
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int noex;
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/* is it in the method cache? */
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ent = cache + EXPR1(klass, id);
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if (ent->mid == id && ent->klass == klass) {
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if (ex && (ent->noex & NOEX_PRIVATE))
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return Qfalse;
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if (!ent->method) return Qfalse;
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return Qtrue;
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}
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if (rb_get_method_body(&klass, &id, &noex)) {
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if (ex && (noex & NOEX_PRIVATE))
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return Qfalse;
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return Qtrue;
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}
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return Qfalse;
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}
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static ID init, alloc, eqq, each, aref, aset, match, missing;
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static ID added, singleton_added;
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static ID __id__, __send__;
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void
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rb_attr(klass, id, read, write, ex)
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VALUE klass;
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ID id;
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int read, write, ex;
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{
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const char *name;
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char *buf;
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ID attriv;
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int noex;
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if (!ex) noex = NOEX_PUBLIC;
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else {
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if (SCOPE_TEST(SCOPE_PRIVATE)) {
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noex = NOEX_PRIVATE;
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rb_warning((scope_vmode == SCOPE_MODFUNC) ?
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"attribute accessor as module_function" :
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"private attribute?");
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}
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else if (SCOPE_TEST(SCOPE_PROTECTED)) {
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noex = NOEX_PROTECTED;
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}
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else {
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noex = NOEX_PUBLIC;
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}
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}
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name = rb_id2name(id);
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if (!name) {
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rb_raise(rb_eArgError, "argument needs to be symbol or string");
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}
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buf = ALLOCA_N(char,strlen(name)+2);
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sprintf(buf, "@%s", name);
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attriv = rb_intern(buf);
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if (read) {
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rb_add_method(klass, id, NEW_IVAR(attriv), noex);
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rb_funcall(klass, added, 1, ID2SYM(id));
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}
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if (write) {
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sprintf(buf, "%s=", name);
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id = rb_intern(buf);
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rb_add_method(klass, id, NEW_ATTRSET(attriv), noex);
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rb_funcall(klass, added, 1, ID2SYM(id));
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}
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}
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extern int ruby_in_compile;
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VALUE ruby_errinfo = Qnil;
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extern NODE *ruby_eval_tree_begin;
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extern NODE *ruby_eval_tree;
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extern int ruby_nerrs;
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static VALUE rb_eLocalJumpError;
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static VALUE rb_eSysStackError;
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extern VALUE ruby_top_self;
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struct FRAME *ruby_frame;
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struct SCOPE *ruby_scope;
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static struct FRAME *top_frame;
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static struct SCOPE *top_scope;
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#define PUSH_FRAME() do { \
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struct FRAME _frame; \
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_frame.prev = ruby_frame; \
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_frame.tmp = 0; \
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_frame.file = ruby_sourcefile; \
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_frame.line = ruby_sourceline; \
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_frame.iter = ruby_iter->iter; \
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_frame.cbase = ruby_frame->cbase; \
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_frame.argc = 0; \
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_frame.argv = 0; \
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_frame.flags = FRAME_ALLOCA; \
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ruby_frame = &_frame
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#define POP_FRAME() \
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ruby_sourcefile = _frame.file; \
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ruby_sourceline = _frame.line; \
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ruby_frame = _frame.prev; \
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} while (0)
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struct BLOCKTAG {
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struct RBasic super;
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long dst;
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long flags;
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};
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struct BLOCK {
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NODE *var;
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NODE *body;
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VALUE self;
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struct FRAME frame;
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struct SCOPE *scope;
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struct BLOCKTAG *tag;
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VALUE klass;
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int iter;
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int vmode;
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int flags;
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struct RVarmap *dyna_vars;
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VALUE orig_thread;
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VALUE wrapper;
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struct BLOCK *prev;
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};
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#define BLOCK_D_SCOPE 1
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|
#define BLOCK_DYNAMIC 2
|
|
#define BLOCK_ORPHAN 4
|
|
|
|
static struct BLOCK *ruby_block;
|
|
|
|
static struct BLOCKTAG*
|
|
new_blktag()
|
|
{
|
|
NEWOBJ(blktag, struct BLOCKTAG);
|
|
OBJSETUP(blktag, 0, T_BLKTAG);
|
|
blktag->dst = 0;
|
|
blktag->flags = 0;
|
|
return blktag;
|
|
}
|
|
|
|
#define PUSH_BLOCK(v,b) do { \
|
|
struct BLOCK _block; \
|
|
_block.tag = new_blktag(); \
|
|
_block.var = v; \
|
|
_block.body = b; \
|
|
_block.self = self; \
|
|
_block.frame = *ruby_frame; \
|
|
_block.klass = ruby_class; \
|
|
_block.frame.file = ruby_sourcefile;\
|
|
_block.frame.line = ruby_sourceline;\
|
|
_block.scope = ruby_scope; \
|
|
_block.prev = ruby_block; \
|
|
_block.iter = ruby_iter->iter; \
|
|
_block.vmode = scope_vmode; \
|
|
_block.flags = BLOCK_D_SCOPE; \
|
|
_block.dyna_vars = ruby_dyna_vars; \
|
|
_block.wrapper = ruby_wrapper; \
|
|
ruby_block = &_block
|
|
|
|
#define POP_BLOCK() \
|
|
if (_block.tag->flags & (BLOCK_DYNAMIC)) \
|
|
_block.tag->flags |= BLOCK_ORPHAN; \
|
|
else if (!(_block.scope->flags & SCOPE_DONT_RECYCLE)) \
|
|
rb_gc_force_recycle((VALUE)_block.tag); \
|
|
ruby_block = _block.prev; \
|
|
} while (0)
|
|
|
|
struct RVarmap *ruby_dyna_vars;
|
|
#define PUSH_VARS() do { \
|
|
struct RVarmap * volatile _old; \
|
|
_old = ruby_dyna_vars; \
|
|
ruby_dyna_vars = 0
|
|
|
|
#define POP_VARS() \
|
|
if (_old && (ruby_scope->flags & SCOPE_DONT_RECYCLE)) {\
|
|
if (RBASIC(_old)->flags) /* unless it's already recycled */ \
|
|
FL_SET(_old, DVAR_DONT_RECYCLE); \
|
|
}\
|
|
ruby_dyna_vars = _old; \
|
|
} while (0)
|
|
|
|
#define DVAR_DONT_RECYCLE FL_USER2
|
|
|
|
static struct RVarmap*
|
|
new_dvar(id, value, prev)
|
|
ID id;
|
|
VALUE value;
|
|
struct RVarmap *prev;
|
|
{
|
|
NEWOBJ(vars, struct RVarmap);
|
|
OBJSETUP(vars, 0, T_VARMAP);
|
|
vars->id = id;
|
|
vars->val = value;
|
|
vars->next = prev;
|
|
|
|
return vars;
|
|
}
|
|
|
|
VALUE
|
|
rb_dvar_defined(id)
|
|
ID id;
|
|
{
|
|
struct RVarmap *vars = ruby_dyna_vars;
|
|
|
|
while (vars) {
|
|
if (vars->id == id) return Qtrue;
|
|
vars = vars->next;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
VALUE
|
|
rb_dvar_curr(id)
|
|
ID id;
|
|
{
|
|
struct RVarmap *vars = ruby_dyna_vars;
|
|
|
|
while (vars) {
|
|
if (vars->id == 0) break;
|
|
if (vars->id == id) return Qtrue;
|
|
vars = vars->next;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
VALUE
|
|
rb_dvar_ref(id)
|
|
ID id;
|
|
{
|
|
struct RVarmap *vars = ruby_dyna_vars;
|
|
|
|
while (vars) {
|
|
if (vars->id == id) {
|
|
return vars->val;
|
|
}
|
|
vars = vars->next;
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
void
|
|
rb_dvar_push(id, value)
|
|
ID id;
|
|
VALUE value;
|
|
{
|
|
ruby_dyna_vars = new_dvar(id, value, ruby_dyna_vars);
|
|
}
|
|
|
|
static void
|
|
dvar_asgn_internal(id, value, curr)
|
|
ID id;
|
|
VALUE value;
|
|
int curr;
|
|
{
|
|
int n = 0;
|
|
struct RVarmap *vars = ruby_dyna_vars;
|
|
|
|
while (vars) {
|
|
if (curr && vars->id == 0) {
|
|
/* first null is a dvar header */
|
|
n++;
|
|
if (n == 2) break;
|
|
}
|
|
if (vars->id == id) {
|
|
vars->val = value;
|
|
return;
|
|
}
|
|
vars = vars->next;
|
|
}
|
|
if (!ruby_dyna_vars) {
|
|
ruby_dyna_vars = new_dvar(id, value, 0);
|
|
}
|
|
else {
|
|
vars = new_dvar(id, value, ruby_dyna_vars->next);
|
|
ruby_dyna_vars->next = vars;
|
|
}
|
|
}
|
|
|
|
static inline void
|
|
dvar_asgn(id, value)
|
|
ID id;
|
|
VALUE value;
|
|
{
|
|
dvar_asgn_internal(id, value, 0);
|
|
}
|
|
|
|
static inline void
|
|
dvar_asgn_curr(id, value)
|
|
ID id;
|
|
VALUE value;
|
|
{
|
|
dvar_asgn_internal(id, value, 1);
|
|
}
|
|
|
|
VALUE *
|
|
rb_svar(cnt)
|
|
int cnt;
|
|
{
|
|
struct RVarmap *vars = ruby_dyna_vars;
|
|
ID id;
|
|
|
|
if (!ruby_scope->local_tbl) return NULL;
|
|
if (cnt >= ruby_scope->local_tbl[0]) return NULL;
|
|
id = ruby_scope->local_tbl[cnt+1];
|
|
while (vars) {
|
|
if (vars->id == id) return &vars->val;
|
|
vars = vars->next;
|
|
}
|
|
if (ruby_scope->local_vars == 0) return NULL;
|
|
return &ruby_scope->local_vars[cnt];
|
|
}
|
|
|
|
struct iter {
|
|
int iter;
|
|
struct iter *prev;
|
|
};
|
|
static struct iter *ruby_iter;
|
|
|
|
#define ITER_NOT 0
|
|
#define ITER_PRE 1
|
|
#define ITER_CUR 2
|
|
|
|
#define PUSH_ITER(i) do { \
|
|
struct iter _iter; \
|
|
_iter.prev = ruby_iter; \
|
|
_iter.iter = (i); \
|
|
ruby_iter = &_iter
|
|
|
|
#define POP_ITER() \
|
|
ruby_iter = _iter.prev; \
|
|
} while (0)
|
|
|
|
struct tag {
|
|
jmp_buf buf;
|
|
struct FRAME *frame;
|
|
struct iter *iter;
|
|
ID tag;
|
|
VALUE retval;
|
|
struct SCOPE *scope;
|
|
int dst;
|
|
struct tag *prev;
|
|
};
|
|
static struct tag *prot_tag;
|
|
|
|
#define PUSH_TAG(ptag) do { \
|
|
struct tag _tag; \
|
|
_tag.retval = Qnil; \
|
|
_tag.frame = ruby_frame; \
|
|
_tag.iter = ruby_iter; \
|
|
_tag.prev = prot_tag; \
|
|
_tag.scope = ruby_scope; \
|
|
_tag.tag = ptag; \
|
|
_tag.dst = 0; \
|
|
prot_tag = &_tag
|
|
|
|
#define PROT_NONE 0
|
|
#define PROT_FUNC -1
|
|
#define PROT_THREAD -2
|
|
|
|
#define EXEC_TAG() setjmp(prot_tag->buf)
|
|
|
|
#define JUMP_TAG(st) do { \
|
|
ruby_frame = prot_tag->frame; \
|
|
ruby_iter = prot_tag->iter; \
|
|
longjmp(prot_tag->buf,(st)); \
|
|
} while (0)
|
|
|
|
#define POP_TAG() \
|
|
if (_tag.prev) \
|
|
_tag.prev->retval = _tag.retval;\
|
|
prot_tag = _tag.prev; \
|
|
} while (0)
|
|
|
|
#define POP_TMPTAG() \
|
|
prot_tag = _tag.prev; \
|
|
} while (0)
|
|
|
|
#define TAG_RETURN 0x1
|
|
#define TAG_BREAK 0x2
|
|
#define TAG_NEXT 0x3
|
|
#define TAG_RETRY 0x4
|
|
#define TAG_REDO 0x5
|
|
#define TAG_RAISE 0x6
|
|
#define TAG_THROW 0x7
|
|
#define TAG_FATAL 0x8
|
|
#define TAG_MASK 0xf
|
|
|
|
VALUE ruby_class;
|
|
static VALUE ruby_wrapper; /* security wrapper */
|
|
|
|
#define PUSH_CLASS() do { \
|
|
VALUE _class = ruby_class
|
|
|
|
#define POP_CLASS() ruby_class = _class; \
|
|
} while (0)
|
|
|
|
static NODE *ruby_cref = 0;
|
|
static NODE *top_cref;
|
|
#define PUSH_CREF(c) ruby_cref = rb_node_newnode(NODE_CREF,(c),0,ruby_cref)
|
|
#define POP_CREF() ruby_cref = ruby_cref->nd_next
|
|
|
|
#define PUSH_SCOPE() do { \
|
|
volatile int _vmode = scope_vmode; \
|
|
struct SCOPE * volatile _old; \
|
|
NEWOBJ(_scope, struct SCOPE); \
|
|
OBJSETUP(_scope, 0, T_SCOPE); \
|
|
_scope->local_tbl = 0; \
|
|
_scope->local_vars = 0; \
|
|
_scope->flags = 0; \
|
|
_old = ruby_scope; \
|
|
ruby_scope = _scope; \
|
|
scope_vmode = SCOPE_PUBLIC
|
|
|
|
typedef struct thread * rb_thread_t;
|
|
static rb_thread_t curr_thread = 0;
|
|
static rb_thread_t main_thread;
|
|
static void scope_dup _((struct SCOPE *));
|
|
|
|
#define POP_SCOPE() \
|
|
if (ruby_scope->flags & SCOPE_DONT_RECYCLE) {\
|
|
if (_old) scope_dup(_old); \
|
|
} \
|
|
if (!(ruby_scope->flags & SCOPE_MALLOC)) {\
|
|
ruby_scope->local_vars = 0; \
|
|
ruby_scope->local_tbl = 0; \
|
|
if (!(ruby_scope->flags & SCOPE_DONT_RECYCLE) && \
|
|
ruby_scope != top_scope) { \
|
|
rb_gc_force_recycle((VALUE)ruby_scope);\
|
|
} \
|
|
} \
|
|
ruby_scope->flags |= SCOPE_NOSTACK; \
|
|
ruby_scope = _old; \
|
|
scope_vmode = _vmode; \
|
|
} while (0)
|
|
|
|
static VALUE rb_eval _((VALUE,NODE*));
|
|
static VALUE eval _((VALUE,VALUE,VALUE,char*,int));
|
|
static NODE *compile _((VALUE, char*, int));
|
|
|
|
static VALUE rb_yield_0 _((VALUE, VALUE, VALUE, int));
|
|
static VALUE rb_call _((VALUE,VALUE,ID,int,const VALUE*,int));
|
|
static VALUE module_setup _((VALUE,NODE*));
|
|
|
|
static VALUE massign _((VALUE,NODE*,VALUE,int));
|
|
static void assign _((VALUE,NODE*,VALUE,int));
|
|
|
|
static VALUE trace_func = 0;
|
|
static int tracing = 0;
|
|
static void call_trace_func _((char*,char*,int,VALUE,ID,VALUE));
|
|
|
|
static void
|
|
error_pos()
|
|
{
|
|
if (ruby_sourcefile) {
|
|
if (ruby_frame->last_func) {
|
|
fprintf(stderr, "%s:%d:in `%s'", ruby_sourcefile, ruby_sourceline,
|
|
rb_id2name(ruby_frame->last_func));
|
|
}
|
|
else if (ruby_sourceline == 0) {
|
|
fprintf(stderr, "%s", ruby_sourcefile);
|
|
}
|
|
else {
|
|
fprintf(stderr, "%s:%d", ruby_sourcefile, ruby_sourceline);
|
|
}
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
get_backtrace(info)
|
|
VALUE info;
|
|
{
|
|
if (NIL_P(info)) return Qnil;
|
|
return rb_funcall(info, rb_intern("backtrace"), 0);
|
|
}
|
|
|
|
static void
|
|
set_backtrace(info, bt)
|
|
VALUE info, bt;
|
|
{
|
|
rb_funcall(info, rb_intern("set_backtrace"), 1, bt);
|
|
}
|
|
|
|
static void
|
|
error_print()
|
|
{
|
|
VALUE errat = Qnil; /* OK */
|
|
volatile VALUE eclass;
|
|
char *einfo;
|
|
int elen;
|
|
|
|
if (NIL_P(ruby_errinfo)) return;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if (EXEC_TAG() == 0) {
|
|
errat = get_backtrace(ruby_errinfo);
|
|
}
|
|
else {
|
|
errat = Qnil;
|
|
}
|
|
POP_TAG();
|
|
if (NIL_P(errat)){
|
|
if (ruby_sourcefile)
|
|
fprintf(stderr, "%s:%d", ruby_sourcefile, ruby_sourceline);
|
|
else
|
|
fprintf(stderr, "%d", ruby_sourceline);
|
|
}
|
|
else if (RARRAY(errat)->len == 0) {
|
|
error_pos();
|
|
}
|
|
else {
|
|
VALUE mesg = RARRAY(errat)->ptr[0];
|
|
|
|
if (NIL_P(mesg)) error_pos();
|
|
else {
|
|
fwrite(RSTRING(mesg)->ptr, 1, RSTRING(mesg)->len, stderr);
|
|
}
|
|
}
|
|
|
|
eclass = CLASS_OF(ruby_errinfo);
|
|
PUSH_TAG(PROT_NONE);
|
|
if (EXEC_TAG() == 0) {
|
|
VALUE e = rb_obj_as_string(ruby_errinfo);
|
|
einfo = RSTRING(e)->ptr;
|
|
elen = RSTRING(e)->len;
|
|
}
|
|
else {
|
|
einfo = "";
|
|
elen = 0;
|
|
}
|
|
POP_TAG();
|
|
if (eclass == rb_eRuntimeError && elen == 0) {
|
|
fprintf(stderr, ": unhandled exception\n");
|
|
}
|
|
else {
|
|
VALUE epath;
|
|
|
|
epath = rb_class_path(eclass);
|
|
if (elen == 0) {
|
|
fprintf(stderr, ": ");
|
|
fwrite(RSTRING(epath)->ptr, 1, RSTRING(epath)->len, stderr);
|
|
putc('\n', stderr);
|
|
}
|
|
else {
|
|
char *tail = 0;
|
|
int len = elen;
|
|
|
|
if (RSTRING(epath)->ptr[0] == '#') epath = 0;
|
|
if (tail = strchr(einfo, '\n')) {
|
|
len = tail - einfo;
|
|
tail++; /* skip newline */
|
|
}
|
|
fprintf(stderr, ": ");
|
|
fwrite(einfo, 1, len, stderr);
|
|
if (epath) {
|
|
fprintf(stderr, " (");
|
|
fwrite(RSTRING(epath)->ptr, 1, RSTRING(epath)->len, stderr);
|
|
fprintf(stderr, ")\n");
|
|
}
|
|
if (tail) {
|
|
fwrite(tail, 1, elen-len-1, stderr);
|
|
putc('\n', stderr);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!NIL_P(errat)) {
|
|
int i;
|
|
struct RArray *ep = RARRAY(errat);
|
|
|
|
#define TRACE_MAX (TRACE_HEAD+TRACE_TAIL+5)
|
|
#define TRACE_HEAD 8
|
|
#define TRACE_TAIL 5
|
|
|
|
ep = RARRAY(errat);
|
|
for (i=1; i<ep->len; i++) {
|
|
if (TYPE(ep->ptr[i]) == T_STRING) {
|
|
fprintf(stderr, "\tfrom %s\n", RSTRING(ep->ptr[i])->ptr);
|
|
}
|
|
if (i == TRACE_HEAD && ep->len > TRACE_MAX) {
|
|
fprintf(stderr, "\t ... %ld levels...\n",
|
|
ep->len - TRACE_HEAD - TRACE_TAIL);
|
|
i = ep->len - TRACE_TAIL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#if !defined(NT) && !defined(__MACOS__)
|
|
extern char **environ;
|
|
#endif
|
|
char **rb_origenviron;
|
|
|
|
void rb_call_inits _((void));
|
|
void Init_stack _((void*));
|
|
void Init_heap _((void));
|
|
void Init_ext _((void));
|
|
|
|
void
|
|
ruby_init()
|
|
{
|
|
static int initialized = 0;
|
|
static struct FRAME frame;
|
|
static struct iter iter;
|
|
int state;
|
|
|
|
if (initialized)
|
|
return;
|
|
initialized = 1;
|
|
|
|
ruby_frame = top_frame = &frame;
|
|
ruby_iter = &iter;
|
|
|
|
#ifdef __MACOS__
|
|
rb_origenviron = 0;
|
|
#else
|
|
rb_origenviron = environ;
|
|
#endif
|
|
|
|
Init_stack(0);
|
|
Init_heap();
|
|
PUSH_SCOPE();
|
|
ruby_scope->local_vars = 0;
|
|
ruby_scope->local_tbl = 0;
|
|
top_scope = ruby_scope;
|
|
/* default visibility is private at toplevel */
|
|
SCOPE_SET(SCOPE_PRIVATE);
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
rb_call_inits();
|
|
ruby_class = rb_cObject;
|
|
ruby_frame->self = ruby_top_self;
|
|
top_cref = rb_node_newnode(NODE_CREF,rb_cObject,0,0);
|
|
ruby_cref = top_cref;
|
|
ruby_frame->cbase = (VALUE)ruby_cref;
|
|
rb_define_global_const("TOPLEVEL_BINDING", rb_f_binding(ruby_top_self));
|
|
#ifdef __MACOS__
|
|
_macruby_init();
|
|
#endif
|
|
ruby_prog_init();
|
|
}
|
|
POP_TAG();
|
|
if (state) error_print();
|
|
POP_SCOPE();
|
|
ruby_scope = top_scope;
|
|
}
|
|
|
|
static VALUE
|
|
eval_node(self, node)
|
|
VALUE self;
|
|
NODE *node;
|
|
{
|
|
NODE *beg_tree = ruby_eval_tree_begin;
|
|
|
|
ruby_eval_tree_begin = 0;
|
|
if (beg_tree) {
|
|
rb_eval(self, beg_tree);
|
|
}
|
|
|
|
if (!node) return Qnil;
|
|
return rb_eval(self, node);
|
|
}
|
|
|
|
int ruby_in_eval;
|
|
|
|
static void rb_thread_cleanup _((void));
|
|
static void rb_thread_wait_other_threads _((void));
|
|
|
|
static int
|
|
error_handle(ex)
|
|
int ex;
|
|
{
|
|
switch (ex & TAG_MASK) {
|
|
case 0:
|
|
ex = 0;
|
|
break;
|
|
|
|
case TAG_RETURN:
|
|
error_pos();
|
|
fprintf(stderr, ": unexpected return\n");
|
|
ex = 1;
|
|
break;
|
|
case TAG_NEXT:
|
|
error_pos();
|
|
fprintf(stderr, ": unexpected next\n");
|
|
ex = 1;
|
|
break;
|
|
case TAG_BREAK:
|
|
error_pos();
|
|
fprintf(stderr, ": unexpected break\n");
|
|
ex = 1;
|
|
break;
|
|
case TAG_REDO:
|
|
error_pos();
|
|
fprintf(stderr, ": unexpected redo\n");
|
|
ex = 1;
|
|
break;
|
|
case TAG_RETRY:
|
|
error_pos();
|
|
fprintf(stderr, ": retry outside of rescue clause\n");
|
|
ex = 1;
|
|
break;
|
|
case TAG_THROW:
|
|
if (prot_tag && prot_tag->frame && prot_tag->frame->file) {
|
|
fprintf(stderr, "%s:%d: uncaught throw\n",
|
|
prot_tag->frame->file, prot_tag->frame->line);
|
|
}
|
|
else {
|
|
error_pos();
|
|
fprintf(stderr, ": unexpected throw\n");
|
|
}
|
|
ex = 1;
|
|
break;
|
|
case TAG_RAISE:
|
|
case TAG_FATAL:
|
|
if (rb_obj_is_kind_of(ruby_errinfo, rb_eSystemExit)) {
|
|
VALUE st = rb_iv_get(ruby_errinfo, "status");
|
|
ex = NIL_P(st) ? 1 : NUM2INT(st);
|
|
}
|
|
else {
|
|
error_print();
|
|
ex = 1;
|
|
}
|
|
break;
|
|
default:
|
|
rb_bug("Unknown longjmp status %d", ex);
|
|
break;
|
|
}
|
|
return ex;
|
|
}
|
|
|
|
void
|
|
ruby_options(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
int state;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
ruby_process_options(argc, argv);
|
|
}
|
|
if (state) {
|
|
trace_func = 0;
|
|
tracing = 0;
|
|
exit(error_handle(state));
|
|
}
|
|
POP_TAG();
|
|
}
|
|
|
|
void rb_exec_end_proc _((void));
|
|
|
|
void
|
|
ruby_finalize()
|
|
{
|
|
int state;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
rb_trap_exit();
|
|
rb_exec_end_proc();
|
|
rb_gc_call_finalizer_at_exit();
|
|
}
|
|
POP_TAG();
|
|
}
|
|
|
|
void
|
|
ruby_stop(ex)
|
|
int ex;
|
|
{
|
|
int state;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
PUSH_ITER(ITER_NOT);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
rb_thread_cleanup();
|
|
rb_thread_wait_other_threads();
|
|
}
|
|
else if (ex == 0) {
|
|
ex = state;
|
|
}
|
|
POP_ITER();
|
|
|
|
trace_func = 0;
|
|
tracing = 0;
|
|
ex = error_handle(ex);
|
|
POP_TAG();
|
|
ruby_finalize();
|
|
exit(ex);
|
|
}
|
|
|
|
void
|
|
ruby_run()
|
|
{
|
|
int state;
|
|
static int ex;
|
|
volatile NODE *tmp;
|
|
|
|
if (ruby_nerrs > 0) exit(ruby_nerrs);
|
|
|
|
Init_stack((void*)&tmp);
|
|
PUSH_TAG(PROT_NONE);
|
|
PUSH_ITER(ITER_NOT);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
eval_node(ruby_top_self, ruby_eval_tree);
|
|
}
|
|
POP_ITER();
|
|
POP_TAG();
|
|
|
|
if (state && !ex) ex = state;
|
|
ruby_stop(ex);
|
|
}
|
|
|
|
static void
|
|
compile_error(at)
|
|
const char *at;
|
|
{
|
|
VALUE str;
|
|
|
|
ruby_nerrs = 0;
|
|
str = rb_str_buf_new2("compile error");
|
|
if (at) {
|
|
rb_str_buf_cat2(str, " in ");
|
|
rb_str_buf_cat2(str, at);
|
|
}
|
|
rb_str_buf_cat(str, "\n", 1);
|
|
if (!NIL_P(ruby_errinfo)) {
|
|
rb_str_append(str, ruby_errinfo);
|
|
}
|
|
rb_exc_raise(rb_exc_new3(rb_eSyntaxError, str));
|
|
}
|
|
|
|
VALUE
|
|
rb_eval_string(str)
|
|
const char *str;
|
|
{
|
|
VALUE v;
|
|
char *oldsrc = ruby_sourcefile;
|
|
|
|
ruby_sourcefile = rb_source_filename("(eval)");
|
|
v = eval(ruby_top_self, rb_str_new2(str), Qnil, 0, 0);
|
|
ruby_sourcefile = oldsrc;
|
|
|
|
return v;
|
|
}
|
|
|
|
VALUE
|
|
rb_eval_string_protect(str, state)
|
|
const char *str;
|
|
int *state;
|
|
{
|
|
VALUE result; /* OK */
|
|
int status;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((status = EXEC_TAG()) == 0) {
|
|
result = rb_eval_string(str);
|
|
}
|
|
POP_TAG();
|
|
if (state) {
|
|
*state = status;
|
|
}
|
|
if (status != 0) {
|
|
return Qnil;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
VALUE
|
|
rb_eval_string_wrap(str, state)
|
|
const char *str;
|
|
int *state;
|
|
{
|
|
int status;
|
|
VALUE self = ruby_top_self;
|
|
VALUE wrapper = ruby_wrapper;
|
|
VALUE val;
|
|
|
|
PUSH_CLASS();
|
|
ruby_class = ruby_wrapper = rb_module_new();
|
|
ruby_top_self = rb_obj_clone(ruby_top_self);
|
|
rb_extend_object(ruby_top_self, ruby_wrapper);
|
|
PUSH_FRAME();
|
|
ruby_frame->last_func = 0;
|
|
ruby_frame->last_class = 0;
|
|
ruby_frame->self = self;
|
|
ruby_frame->cbase = (VALUE)rb_node_newnode(NODE_CREF,ruby_wrapper,0,0);
|
|
PUSH_SCOPE();
|
|
|
|
val = rb_eval_string_protect(str, &status);
|
|
ruby_top_self = self;
|
|
|
|
POP_SCOPE();
|
|
POP_FRAME();
|
|
POP_CLASS();
|
|
ruby_wrapper = wrapper;
|
|
if (state) {
|
|
*state = status;
|
|
}
|
|
else if (status) {
|
|
JUMP_TAG(status);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static void
|
|
localjump_error(mesg, status)
|
|
const char *mesg;
|
|
{
|
|
VALUE exc = rb_exc_new2(rb_eLocalJumpError, mesg);
|
|
rb_iv_set(exc, "@status", status);
|
|
rb_exc_raise(exc);
|
|
}
|
|
|
|
static VALUE
|
|
localjump_exitstatus(exc)
|
|
VALUE exc;
|
|
{
|
|
return rb_iv_get(exc, "@status");
|
|
}
|
|
|
|
static void
|
|
jump_tag_but_local_jump(state)
|
|
int state;
|
|
{
|
|
VALUE val;
|
|
|
|
if (prot_tag) val = prot_tag->retval;
|
|
else val = Qnil;
|
|
switch (state) {
|
|
case 0:
|
|
break;
|
|
case TAG_RETURN:
|
|
localjump_error("unexpected return", val);
|
|
break;
|
|
case TAG_NEXT:
|
|
localjump_error("unexpected next", val);
|
|
break;
|
|
case TAG_BREAK:
|
|
localjump_error("unexpected break", val);
|
|
break;
|
|
case TAG_REDO:
|
|
localjump_error("unexpected redo", Qnil);
|
|
break;
|
|
case TAG_RETRY:
|
|
localjump_error("retry outside of rescue clause", Qnil);
|
|
break;
|
|
default:
|
|
JUMP_TAG(state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
VALUE
|
|
rb_eval_cmd(cmd, arg, tcheck)
|
|
VALUE cmd, arg;
|
|
int tcheck;
|
|
{
|
|
int state;
|
|
VALUE val; /* OK */
|
|
struct SCOPE *saved_scope;
|
|
volatile int safe = ruby_safe_level;
|
|
|
|
if (TYPE(cmd) != T_STRING) {
|
|
PUSH_ITER(ITER_NOT);
|
|
val = rb_funcall2(cmd, rb_intern("call"), RARRAY(arg)->len, RARRAY(arg)->ptr);
|
|
POP_ITER();
|
|
return val;
|
|
}
|
|
|
|
saved_scope = ruby_scope;
|
|
ruby_scope = top_scope;
|
|
PUSH_FRAME();
|
|
ruby_frame->last_func = 0;
|
|
ruby_frame->last_class = 0;
|
|
ruby_frame->self = ruby_top_self;
|
|
ruby_frame->cbase = (VALUE)rb_node_newnode(NODE_CREF,0,0,0);
|
|
RNODE(ruby_frame->cbase)->nd_clss = ruby_wrapper ? ruby_wrapper : rb_cObject;
|
|
|
|
if (tcheck && OBJ_TAINTED(cmd)) {
|
|
ruby_safe_level = 4;
|
|
}
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = eval(ruby_top_self, cmd, Qnil, 0, 0);
|
|
}
|
|
if (ruby_scope->flags & SCOPE_DONT_RECYCLE)
|
|
scope_dup(saved_scope);
|
|
ruby_scope = saved_scope;
|
|
ruby_safe_level = safe;
|
|
POP_TAG();
|
|
POP_FRAME();
|
|
|
|
jump_tag_but_local_jump(state);
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
rb_trap_eval(cmd, sig)
|
|
VALUE cmd;
|
|
int sig;
|
|
{
|
|
int state;
|
|
VALUE val; /* OK */
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
PUSH_ITER(ITER_NOT);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = rb_eval_cmd(cmd, rb_ary_new3(1, INT2FIX(sig)), 0);
|
|
}
|
|
POP_ITER();
|
|
POP_TAG();
|
|
if (state) {
|
|
rb_trap_immediate = 0;
|
|
JUMP_TAG(state);
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
superclass(self, node)
|
|
VALUE self;
|
|
NODE *node;
|
|
{
|
|
VALUE val; /* OK */
|
|
int state;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = rb_eval(self, node);
|
|
}
|
|
POP_TAG();
|
|
if (state) {
|
|
switch (nd_type(node)) {
|
|
case NODE_COLON2:
|
|
rb_raise(rb_eTypeError, "undefined superclass `%s'",
|
|
rb_id2name(node->nd_mid));
|
|
case NODE_CONST:
|
|
rb_raise(rb_eTypeError, "undefined superclass `%s'",
|
|
rb_id2name(node->nd_vid));
|
|
default:
|
|
break;
|
|
}
|
|
JUMP_TAG(state);
|
|
}
|
|
if (TYPE(val) != T_CLASS) {
|
|
rb_raise(rb_eTypeError, "superclass must be a Class (%s given)",
|
|
rb_class2name(CLASS_OF(val)));
|
|
}
|
|
if (FL_TEST(val, FL_SINGLETON)) {
|
|
rb_raise(rb_eTypeError, "can't make subclass of virtual class");
|
|
}
|
|
|
|
return val;
|
|
}
|
|
|
|
#define ruby_cbase (RNODE(ruby_frame->cbase)->nd_clss)
|
|
|
|
static VALUE
|
|
ev_const_defined(cref, id, self)
|
|
NODE *cref;
|
|
ID id;
|
|
VALUE self;
|
|
{
|
|
NODE *cbase = cref;
|
|
|
|
while (cbase && cbase->nd_next) {
|
|
struct RClass *klass = RCLASS(cbase->nd_clss);
|
|
|
|
if (NIL_P(klass)) return rb_const_defined(CLASS_OF(self), id);
|
|
if (klass->iv_tbl && st_lookup(klass->iv_tbl, id, 0)) {
|
|
return Qtrue;
|
|
}
|
|
cbase = cbase->nd_next;
|
|
}
|
|
return rb_const_defined(cref->nd_clss, id);
|
|
}
|
|
|
|
static VALUE
|
|
ev_const_get(cref, id, self)
|
|
NODE *cref;
|
|
ID id;
|
|
VALUE self;
|
|
{
|
|
NODE *cbase = cref;
|
|
VALUE result;
|
|
|
|
while (cbase && cbase->nd_next) {
|
|
VALUE klass = cbase->nd_clss;
|
|
|
|
if (NIL_P(klass)) return rb_const_get(CLASS_OF(self), id);
|
|
if (RCLASS(klass)->iv_tbl && st_lookup(RCLASS(klass)->iv_tbl, id, &result)) {
|
|
return result;
|
|
}
|
|
cbase = cbase->nd_next;
|
|
}
|
|
return rb_const_get(cref->nd_clss, id);
|
|
}
|
|
|
|
static VALUE
|
|
cvar_cbase()
|
|
{
|
|
NODE *cref = RNODE(ruby_frame->cbase);
|
|
|
|
while (cref && cref->nd_next && FL_TEST(cref->nd_clss, FL_SINGLETON)) {
|
|
cref = cref->nd_next;
|
|
if (!cref->nd_next) {
|
|
rb_warn("class variable access from toplevel singleton method");
|
|
}
|
|
}
|
|
return cref->nd_clss;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_nesting()
|
|
{
|
|
NODE *cbase = RNODE(ruby_frame->cbase);
|
|
VALUE ary = rb_ary_new();
|
|
|
|
while (cbase && cbase->nd_next) {
|
|
if (!NIL_P(cbase->nd_clss)) rb_ary_push(ary, cbase->nd_clss);
|
|
cbase = cbase->nd_next;
|
|
}
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_s_constants()
|
|
{
|
|
NODE *cbase = RNODE(ruby_frame->cbase);
|
|
void *data = 0;
|
|
|
|
while (cbase) {
|
|
if (!NIL_P(cbase->nd_clss)) {
|
|
data = rb_mod_const_at(cbase->nd_clss, data);
|
|
}
|
|
cbase = cbase->nd_next;
|
|
}
|
|
|
|
if (!NIL_P(ruby_cbase)) {
|
|
data = rb_mod_const_of(ruby_cbase, data);
|
|
}
|
|
return rb_const_list(data);
|
|
}
|
|
|
|
void
|
|
rb_frozen_class_p(klass)
|
|
VALUE klass;
|
|
{
|
|
char *desc = "something(?!)";
|
|
|
|
if (OBJ_FROZEN(klass)) {
|
|
if (FL_TEST(klass, FL_SINGLETON))
|
|
desc = "object";
|
|
else {
|
|
switch (TYPE(klass)) {
|
|
case T_MODULE:
|
|
case T_ICLASS:
|
|
desc = "module"; break;
|
|
case T_CLASS:
|
|
desc = "class"; break;
|
|
}
|
|
}
|
|
rb_error_frozen(desc);
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_undef(klass, id)
|
|
VALUE klass;
|
|
ID id;
|
|
{
|
|
VALUE origin;
|
|
NODE *body;
|
|
|
|
if (ruby_class == rb_cObject) {
|
|
rb_secure(4);
|
|
}
|
|
if (ruby_safe_level >= 4 && !OBJ_TAINTED(klass)) {
|
|
rb_raise(rb_eSecurityError, "Insecure: can't undef");
|
|
if (id == __id__ || id == __send__ || id == init) {
|
|
rb_name_error(id, "undefining `%s' prohibited", rb_id2name(id));
|
|
}
|
|
}
|
|
rb_frozen_class_p(klass);
|
|
if (id == __id__ || id == __send__ || id == init) {
|
|
rb_warn("undefining `%s' may cause serious problem", rb_id2name(id));
|
|
}
|
|
body = search_method(ruby_class, id, &origin);
|
|
if (!body || !body->nd_body) {
|
|
char *s0 = " class";
|
|
VALUE c = klass;
|
|
|
|
if (FL_TEST(c, FL_SINGLETON)) {
|
|
VALUE obj = rb_iv_get(klass, "__attached__");
|
|
|
|
switch (TYPE(obj)) {
|
|
case T_MODULE:
|
|
case T_CLASS:
|
|
c = obj;
|
|
s0 = "";
|
|
}
|
|
}
|
|
else if (TYPE(c) == T_MODULE) {
|
|
s0 = " module";
|
|
}
|
|
rb_name_error(id, "undefined method `%s' for%s `%s'",
|
|
rb_id2name(id),s0,rb_class2name(c));
|
|
}
|
|
rb_add_method(klass, id, 0, NOEX_PUBLIC);
|
|
if (FL_TEST(klass, FL_SINGLETON)) {
|
|
rb_funcall(rb_iv_get(klass, "__attached__"),
|
|
singleton_undefined, 1, ID2SYM(id));
|
|
}
|
|
else {
|
|
rb_funcall(klass, undefined, 1, ID2SYM(id));
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_undef_method(mod, name)
|
|
VALUE mod, name;
|
|
{
|
|
rb_undef(mod, rb_to_id(name));
|
|
return mod;
|
|
}
|
|
|
|
void
|
|
rb_alias(klass, name, def)
|
|
VALUE klass;
|
|
ID name, def;
|
|
{
|
|
VALUE origin;
|
|
NODE *orig, *body;
|
|
|
|
rb_frozen_class_p(klass);
|
|
if (name == def) return;
|
|
if (klass == rb_cObject) {
|
|
rb_secure(4);
|
|
}
|
|
orig = search_method(klass, def, &origin);
|
|
if (!orig || !orig->nd_body) {
|
|
if (TYPE(klass) == T_MODULE) {
|
|
orig = search_method(rb_cObject, def, &origin);
|
|
}
|
|
}
|
|
if (!orig || !orig->nd_body) {
|
|
print_undef(klass, def);
|
|
}
|
|
body = orig->nd_body;
|
|
orig->nd_cnt++;
|
|
if (nd_type(body) == NODE_FBODY) { /* was alias */
|
|
def = body->nd_mid;
|
|
origin = body->nd_orig;
|
|
body = body->nd_head;
|
|
}
|
|
|
|
rb_clear_cache_by_id(name);
|
|
st_insert(RCLASS(klass)->m_tbl, name,
|
|
NEW_METHOD(NEW_FBODY(body, def, origin), orig->nd_noex));
|
|
if (FL_TEST(klass, FL_SINGLETON)) {
|
|
rb_funcall(rb_iv_get(klass, "__attached__"),
|
|
singleton_added, 1, ID2SYM(name));
|
|
}
|
|
else {
|
|
rb_funcall(klass, added, 1, ID2SYM(name));
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_alias_method(mod, newname, oldname)
|
|
VALUE mod, newname, oldname;
|
|
{
|
|
rb_alias(mod, rb_to_id(newname), rb_to_id(oldname));
|
|
return mod;
|
|
}
|
|
|
|
static NODE*
|
|
copy_node_scope(node, rval)
|
|
NODE *node;
|
|
VALUE rval;
|
|
{
|
|
NODE *copy = rb_node_newnode(NODE_SCOPE,0,rval,node->nd_next);
|
|
|
|
if (node->nd_tbl) {
|
|
copy->nd_tbl = ALLOC_N(ID, node->nd_tbl[0]+1);
|
|
MEMCPY(copy->nd_tbl, node->nd_tbl, ID, node->nd_tbl[0]+1);
|
|
}
|
|
else {
|
|
copy->nd_tbl = 0;
|
|
}
|
|
return copy;
|
|
}
|
|
|
|
#ifdef C_ALLOCA
|
|
# define TMP_PROTECT NODE * volatile tmp__protect_tmp=0
|
|
# define TMP_ALLOC(n) \
|
|
(tmp__protect_tmp = rb_node_newnode(NODE_ALLOCA, \
|
|
ALLOC_N(VALUE,n),tmp__protect_tmp,n), \
|
|
(void*)tmp__protect_tmp->nd_head)
|
|
#else
|
|
# define TMP_PROTECT typedef int foobazzz
|
|
# define TMP_ALLOC(n) ALLOCA_N(VALUE,n)
|
|
#endif
|
|
|
|
#define SETUP_ARGS(anode) do {\
|
|
NODE *n = anode;\
|
|
if (!n) {\
|
|
argc = 0;\
|
|
argv = 0;\
|
|
}\
|
|
else if (nd_type(n) == NODE_ARRAY) {\
|
|
argc=n->nd_alen;\
|
|
if (argc > 0) {\
|
|
char *file = ruby_sourcefile;\
|
|
int line = ruby_sourceline;\
|
|
int i;\
|
|
n = anode;\
|
|
argv = TMP_ALLOC(argc);\
|
|
for (i=0;i<argc;i++) {\
|
|
argv[i] = rb_eval(self,n->nd_head);\
|
|
n=n->nd_next;\
|
|
}\
|
|
ruby_sourcefile = file;\
|
|
ruby_sourceline = line;\
|
|
}\
|
|
else {\
|
|
argc = 0;\
|
|
argv = 0;\
|
|
}\
|
|
}\
|
|
else {\
|
|
VALUE args = rb_eval(self,n);\
|
|
char *file = ruby_sourcefile;\
|
|
int line = ruby_sourceline;\
|
|
if (TYPE(args) != T_ARRAY)\
|
|
args = rb_ary_to_ary(args);\
|
|
argc = RARRAY(args)->len;\
|
|
argv = ALLOCA_N(VALUE, argc);\
|
|
MEMCPY(argv, RARRAY(args)->ptr, VALUE, argc);\
|
|
ruby_sourcefile = file;\
|
|
ruby_sourceline = line;\
|
|
}\
|
|
} while (0)
|
|
|
|
#define BEGIN_CALLARGS do {\
|
|
struct BLOCK *tmp_block = ruby_block;\
|
|
if (ruby_iter->iter == ITER_PRE) {\
|
|
ruby_block = ruby_block->prev;\
|
|
}\
|
|
PUSH_ITER(ITER_NOT)
|
|
|
|
#define END_CALLARGS \
|
|
ruby_block = tmp_block;\
|
|
POP_ITER();\
|
|
} while (0)
|
|
|
|
#define MATCH_DATA *rb_svar(node->nd_cnt)
|
|
|
|
static char* is_defined _((VALUE, NODE*, char*));
|
|
|
|
static char*
|
|
arg_defined(self, node, buf, type)
|
|
VALUE self;
|
|
NODE *node;
|
|
char *buf;
|
|
char *type;
|
|
{
|
|
int argc;
|
|
int i;
|
|
|
|
if (!node) return type; /* no args */
|
|
if (nd_type(node) == NODE_ARRAY) {
|
|
argc=node->nd_alen;
|
|
if (argc > 0) {
|
|
for (i=0;i<argc;i++) {
|
|
if (!is_defined(self, node->nd_head, buf))
|
|
return 0;
|
|
node = node->nd_next;
|
|
}
|
|
}
|
|
}
|
|
else if (!is_defined(self, node, buf)) {
|
|
return 0;
|
|
}
|
|
return type;
|
|
}
|
|
|
|
static char*
|
|
is_defined(self, node, buf)
|
|
VALUE self;
|
|
NODE *node; /* OK */
|
|
char *buf;
|
|
{
|
|
VALUE val; /* OK */
|
|
int state;
|
|
|
|
again:
|
|
if (!node) return "expression";
|
|
switch (nd_type(node)) {
|
|
case NODE_SUPER:
|
|
case NODE_ZSUPER:
|
|
if (ruby_frame->last_func == 0) return 0;
|
|
else if (ruby_frame->last_class == 0) return 0;
|
|
else if (rb_method_boundp(RCLASS(ruby_frame->last_class)->super,
|
|
ruby_frame->last_func, 0)) {
|
|
if (nd_type(node) == NODE_SUPER) {
|
|
return arg_defined(self, node->nd_args, buf, "super");
|
|
}
|
|
return "super";
|
|
}
|
|
break;
|
|
|
|
case NODE_VCALL:
|
|
case NODE_FCALL:
|
|
val = self;
|
|
goto check_bound;
|
|
|
|
case NODE_CALL:
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = rb_eval(self, node->nd_recv);
|
|
}
|
|
POP_TAG();
|
|
if (state) {
|
|
ruby_errinfo = Qnil;
|
|
return 0;
|
|
}
|
|
check_bound:
|
|
{
|
|
int call = nd_type(node)== NODE_CALL;
|
|
|
|
val = CLASS_OF(val);
|
|
if (call) {
|
|
int noex;
|
|
ID id = node->nd_mid;
|
|
|
|
if (!rb_get_method_body(&val, &id, &noex))
|
|
break;
|
|
if ((noex & NOEX_PRIVATE))
|
|
break;
|
|
if ((noex & NOEX_PROTECTED) &&
|
|
!rb_obj_is_kind_of(self, rb_class_real(val)))
|
|
break;
|
|
}
|
|
else if (!rb_method_boundp(val, node->nd_mid, call))
|
|
break;
|
|
return arg_defined(self, node->nd_args, buf, "method");
|
|
}
|
|
break;
|
|
|
|
case NODE_MATCH2:
|
|
case NODE_MATCH3:
|
|
return "method";
|
|
|
|
case NODE_YIELD:
|
|
if (rb_block_given_p()) {
|
|
return "yield";
|
|
}
|
|
break;
|
|
|
|
case NODE_SELF:
|
|
return "self";
|
|
|
|
case NODE_NIL:
|
|
return "nil";
|
|
|
|
case NODE_TRUE:
|
|
return "true";
|
|
|
|
case NODE_FALSE:
|
|
return "false";
|
|
|
|
case NODE_ATTRSET:
|
|
case NODE_OP_ASGN1:
|
|
case NODE_OP_ASGN2:
|
|
case NODE_MASGN:
|
|
case NODE_LASGN:
|
|
case NODE_DASGN:
|
|
case NODE_DASGN_CURR:
|
|
case NODE_GASGN:
|
|
case NODE_CDECL:
|
|
case NODE_CVDECL:
|
|
case NODE_CVASGN:
|
|
return "assignment";
|
|
|
|
case NODE_LVAR:
|
|
return "local-variable";
|
|
case NODE_DVAR:
|
|
return "local-variable(in-block)";
|
|
|
|
case NODE_GVAR:
|
|
if (rb_gvar_defined(node->nd_entry)) {
|
|
return "global-variable";
|
|
}
|
|
break;
|
|
|
|
case NODE_IVAR:
|
|
if (rb_ivar_defined(self, node->nd_vid)) {
|
|
return "instance-variable";
|
|
}
|
|
break;
|
|
|
|
case NODE_CONST:
|
|
if (ev_const_defined(RNODE(ruby_frame->cbase), node->nd_vid, self)) {
|
|
return "constant";
|
|
}
|
|
break;
|
|
|
|
case NODE_CVAR:
|
|
if (rb_cvar_defined(cvar_cbase(), node->nd_vid)) {
|
|
return "class variable";
|
|
}
|
|
break;
|
|
|
|
case NODE_COLON2:
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = rb_eval(self, node->nd_head);
|
|
}
|
|
POP_TAG();
|
|
if (state) {
|
|
ruby_errinfo = Qnil;
|
|
return 0;
|
|
}
|
|
else {
|
|
switch (TYPE(val)) {
|
|
case T_CLASS:
|
|
case T_MODULE:
|
|
if (rb_const_defined_at(val, node->nd_mid))
|
|
return "constant";
|
|
break;
|
|
default:
|
|
if (rb_method_boundp(CLASS_OF(val), node->nd_mid, 1)) {
|
|
return "method";
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_NTH_REF:
|
|
if (RTEST(rb_reg_nth_defined(node->nd_nth, MATCH_DATA))) {
|
|
sprintf(buf, "$%d", node->nd_nth);
|
|
return buf;
|
|
}
|
|
break;
|
|
|
|
case NODE_BACK_REF:
|
|
if (RTEST(rb_reg_nth_defined(0, MATCH_DATA))) {
|
|
sprintf(buf, "$%c", node->nd_nth);
|
|
return buf;
|
|
}
|
|
break;
|
|
|
|
case NODE_NEWLINE:
|
|
node = node->nd_next;
|
|
goto again;
|
|
|
|
default:
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
rb_eval(self, node);
|
|
}
|
|
POP_TAG();
|
|
if (!state) {
|
|
return "expression";
|
|
}
|
|
ruby_errinfo = Qnil;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int handle_rescue _((VALUE,NODE*));
|
|
|
|
static void blk_free();
|
|
|
|
static VALUE
|
|
rb_obj_is_block(block)
|
|
VALUE block;
|
|
{
|
|
if (TYPE(block) == T_DATA && RDATA(block)->dfree == (RUBY_DATA_FUNC)blk_free) {
|
|
return Qtrue;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_obj_is_proc(proc)
|
|
VALUE proc;
|
|
{
|
|
if (rb_obj_is_block(proc) && rb_obj_is_kind_of(proc, rb_cProc)) {
|
|
return Qtrue;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
set_trace_func(obj, trace)
|
|
VALUE obj, trace;
|
|
{
|
|
if (NIL_P(trace)) {
|
|
trace_func = 0;
|
|
return Qnil;
|
|
}
|
|
if (!rb_obj_is_proc(trace)) {
|
|
rb_raise(rb_eTypeError, "trace_func needs to be Proc");
|
|
}
|
|
return trace_func = trace;
|
|
}
|
|
|
|
static void
|
|
call_trace_func(event, file, line, self, id, klass)
|
|
char *event;
|
|
char *file;
|
|
int line;
|
|
VALUE self;
|
|
ID id;
|
|
VALUE klass; /* OK */
|
|
{
|
|
int state;
|
|
struct FRAME *prev;
|
|
char *file_save = ruby_sourcefile;
|
|
int line_save = ruby_sourceline;
|
|
VALUE srcfile;
|
|
|
|
if (!trace_func) return;
|
|
if (tracing) return;
|
|
|
|
tracing = 1;
|
|
prev = ruby_frame;
|
|
PUSH_FRAME();
|
|
*ruby_frame = *prev;
|
|
ruby_frame->prev = prev;
|
|
ruby_frame->iter = 0; /* blocks not available anyway */
|
|
|
|
if (file) {
|
|
ruby_frame->line = ruby_sourceline = line;
|
|
ruby_frame->file = ruby_sourcefile = file;
|
|
}
|
|
if (klass) {
|
|
if (TYPE(klass) == T_ICLASS) {
|
|
klass = RBASIC(klass)->klass;
|
|
}
|
|
else if (FL_TEST(klass, FL_SINGLETON)) {
|
|
klass = self;
|
|
}
|
|
}
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
srcfile = rb_str_new2(ruby_sourcefile?ruby_sourcefile:"(ruby)");
|
|
proc_invoke(trace_func, rb_ary_new3(6, rb_str_new2(event),
|
|
srcfile,
|
|
INT2FIX(ruby_sourceline),
|
|
id?ID2SYM(id):Qnil,
|
|
self?rb_f_binding(self):Qnil,
|
|
klass),
|
|
Qtrue, Qundef);
|
|
}
|
|
POP_TMPTAG(); /* do not propagate retval */
|
|
POP_FRAME();
|
|
|
|
tracing = 0;
|
|
ruby_sourceline = line_save;
|
|
ruby_sourcefile = file_save;
|
|
if (state) JUMP_TAG(state);
|
|
}
|
|
|
|
static VALUE
|
|
svalue_to_avalue(v)
|
|
VALUE v;
|
|
{
|
|
if (NIL_P(v)) return rb_ary_new2(0);
|
|
if (v == Qundef) return rb_ary_new2(0);
|
|
if (TYPE(v) == T_ARRAY) {
|
|
if (RARRAY(v)->len > 1) return v;
|
|
return rb_ary_new3(1, v);
|
|
}
|
|
else {
|
|
v = rb_ary_to_ary(v);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static VALUE
|
|
avalue_to_svalue(v)
|
|
VALUE v;
|
|
{
|
|
if (TYPE(v) != T_ARRAY) {
|
|
v = rb_ary_to_ary(v);
|
|
}
|
|
if (RARRAY(v)->len == 0) {
|
|
return Qnil;
|
|
}
|
|
if (RARRAY(v)->len == 1) {
|
|
return RARRAY(v)->ptr[0];
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static VALUE
|
|
avalue_to_yvalue(v)
|
|
VALUE v;
|
|
{
|
|
if (TYPE(v) != T_ARRAY) {
|
|
v = rb_ary_to_ary(v);
|
|
}
|
|
if (RARRAY(v)->len == 0) {
|
|
return Qundef;
|
|
}
|
|
if (RARRAY(v)->len == 1) {
|
|
return RARRAY(v)->ptr[0];
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static VALUE
|
|
svalue_to_mvalue(v)
|
|
VALUE v;
|
|
{
|
|
if (v == Qnil || v == Qundef)
|
|
return rb_ary_new2(0);
|
|
if (TYPE(v) == T_ARRAY) {
|
|
return v;
|
|
}
|
|
else {
|
|
v = rb_ary_to_ary(v);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static VALUE
|
|
mvalue_to_svalue(v)
|
|
VALUE v;
|
|
{
|
|
if (TYPE(v) != T_ARRAY) {
|
|
v = rb_ary_to_ary(v);
|
|
}
|
|
if (RARRAY(v)->len == 0) {
|
|
return Qnil;
|
|
}
|
|
if (RARRAY(v)->len == 1 && TYPE(RARRAY(v)->ptr[0]) != T_ARRAY) {
|
|
return RARRAY(v)->ptr[0];
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static void return_check _((void));
|
|
#define return_value(v) prot_tag->retval = (v)
|
|
|
|
static VALUE
|
|
rb_eval(self, n)
|
|
VALUE self;
|
|
NODE *n;
|
|
{
|
|
NODE * volatile node = n;
|
|
int state;
|
|
volatile VALUE result = Qnil;
|
|
|
|
#define RETURN(v) do { \
|
|
result = (v); \
|
|
goto finish; \
|
|
} while (0)
|
|
|
|
again:
|
|
if (!node) RETURN(Qnil);
|
|
|
|
switch (nd_type(node)) {
|
|
case NODE_BLOCK:
|
|
while (node->nd_next) {
|
|
rb_eval(self, node->nd_head);
|
|
node = node->nd_next;
|
|
}
|
|
node = node->nd_head;
|
|
goto again;
|
|
|
|
case NODE_POSTEXE:
|
|
rb_f_END();
|
|
nd_set_type(node, NODE_NIL); /* exec just once */
|
|
result = Qnil;
|
|
break;
|
|
|
|
/* begin .. end without clauses */
|
|
case NODE_BEGIN:
|
|
node = node->nd_body;
|
|
goto again;
|
|
|
|
/* nodes for speed-up(default match) */
|
|
case NODE_MATCH:
|
|
result = rb_reg_match2(node->nd_lit);
|
|
break;
|
|
|
|
/* nodes for speed-up(literal match) */
|
|
case NODE_MATCH2:
|
|
result = rb_reg_match(rb_eval(self,node->nd_recv),
|
|
rb_eval(self,node->nd_value));
|
|
break;
|
|
|
|
/* nodes for speed-up(literal match) */
|
|
case NODE_MATCH3:
|
|
{
|
|
VALUE r = rb_eval(self,node->nd_recv);
|
|
VALUE l = rb_eval(self,node->nd_value);
|
|
if (TYPE(l) == T_STRING) {
|
|
result = rb_reg_match(r, l);
|
|
}
|
|
else {
|
|
result = rb_funcall(l, match, 1, r);
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* node for speed-up(top-level loop for -n/-p) */
|
|
case NODE_OPT_N:
|
|
PUSH_TAG(PROT_NONE);
|
|
switch (state = EXEC_TAG()) {
|
|
case 0:
|
|
opt_n_next:
|
|
while (!NIL_P(rb_gets())) {
|
|
opt_n_redo:
|
|
rb_eval(self, node->nd_body);
|
|
}
|
|
break;
|
|
|
|
case TAG_REDO:
|
|
state = 0;
|
|
goto opt_n_redo;
|
|
case TAG_NEXT:
|
|
state = 0;
|
|
goto opt_n_next;
|
|
case TAG_BREAK:
|
|
state = 0;
|
|
default:
|
|
break;
|
|
}
|
|
POP_TAG();
|
|
if (state) JUMP_TAG(state);
|
|
RETURN(Qnil);
|
|
|
|
case NODE_SELF:
|
|
RETURN(self);
|
|
|
|
case NODE_NIL:
|
|
RETURN(Qnil);
|
|
|
|
case NODE_TRUE:
|
|
RETURN(Qtrue);
|
|
|
|
case NODE_FALSE:
|
|
RETURN(Qfalse);
|
|
|
|
case NODE_IF:
|
|
ruby_sourceline = nd_line(node);
|
|
if (trace_func) {
|
|
call_trace_func("line", node->nd_file, ruby_sourceline, self,
|
|
ruby_frame->last_func,
|
|
ruby_frame->last_class);
|
|
}
|
|
if (RTEST(rb_eval(self, node->nd_cond))) {
|
|
node = node->nd_body;
|
|
}
|
|
else {
|
|
node = node->nd_else;
|
|
}
|
|
goto again;
|
|
|
|
case NODE_WHEN:
|
|
while (node) {
|
|
NODE *tag;
|
|
|
|
if (nd_type(node) != NODE_WHEN) goto again;
|
|
tag = node->nd_head;
|
|
while (tag) {
|
|
if (trace_func) {
|
|
call_trace_func("line", tag->nd_file, nd_line(tag), self,
|
|
ruby_frame->last_func,
|
|
ruby_frame->last_class);
|
|
}
|
|
ruby_sourcefile = tag->nd_file;
|
|
ruby_sourceline = nd_line(tag);
|
|
if (nd_type(tag->nd_head) == NODE_WHEN) {
|
|
VALUE v = rb_eval(self, tag->nd_head->nd_head);
|
|
int i;
|
|
|
|
if (TYPE(v) != T_ARRAY) v = rb_ary_to_ary(v);
|
|
for (i=0; i<RARRAY(v)->len; i++) {
|
|
if (RTEST(RARRAY(v)->ptr[i])) {
|
|
node = node->nd_body;
|
|
goto again;
|
|
}
|
|
}
|
|
tag = tag->nd_next;
|
|
continue;
|
|
}
|
|
if (RTEST(rb_eval(self, tag->nd_head))) {
|
|
node = node->nd_body;
|
|
goto again;
|
|
}
|
|
tag = tag->nd_next;
|
|
}
|
|
node = node->nd_next;
|
|
}
|
|
RETURN(Qnil);
|
|
|
|
case NODE_CASE:
|
|
{
|
|
VALUE val;
|
|
|
|
val = rb_eval(self, node->nd_head);
|
|
node = node->nd_body;
|
|
while (node) {
|
|
NODE *tag;
|
|
|
|
if (nd_type(node) != NODE_WHEN) {
|
|
goto again;
|
|
}
|
|
tag = node->nd_head;
|
|
while (tag) {
|
|
if (trace_func) {
|
|
call_trace_func("line", tag->nd_file, nd_line(tag), self,
|
|
ruby_frame->last_func,
|
|
ruby_frame->last_class);
|
|
}
|
|
ruby_sourcefile = tag->nd_file;
|
|
ruby_sourceline = nd_line(tag);
|
|
if (nd_type(tag->nd_head) == NODE_WHEN) {
|
|
VALUE v = rb_eval(self, tag->nd_head->nd_head);
|
|
int i;
|
|
|
|
if (TYPE(v) != T_ARRAY) v = rb_ary_to_ary(v);
|
|
for (i=0; i<RARRAY(v)->len; i++) {
|
|
if (RTEST(rb_funcall2(RARRAY(v)->ptr[i], eqq, 1, &val))){
|
|
node = node->nd_body;
|
|
goto again;
|
|
}
|
|
}
|
|
tag = tag->nd_next;
|
|
continue;
|
|
}
|
|
if (RTEST(rb_funcall2(rb_eval(self, tag->nd_head), eqq, 1, &val))) {
|
|
node = node->nd_body;
|
|
goto again;
|
|
}
|
|
tag = tag->nd_next;
|
|
}
|
|
node = node->nd_next;
|
|
}
|
|
}
|
|
RETURN(Qnil);
|
|
|
|
case NODE_WHILE:
|
|
PUSH_TAG(PROT_NONE);
|
|
result = Qnil;
|
|
switch (state = EXEC_TAG()) {
|
|
case 0:
|
|
ruby_sourceline = nd_line(node);
|
|
if (node->nd_state && !RTEST(rb_eval(self, node->nd_cond)))
|
|
goto while_out;
|
|
do {
|
|
while_redo:
|
|
rb_eval(self, node->nd_body);
|
|
while_next:
|
|
;
|
|
} while (RTEST(rb_eval(self, node->nd_cond)));
|
|
break;
|
|
|
|
case TAG_REDO:
|
|
state = 0;
|
|
goto while_redo;
|
|
case TAG_NEXT:
|
|
state = 0;
|
|
goto while_next;
|
|
case TAG_BREAK:
|
|
state = 0;
|
|
result = prot_tag->retval;
|
|
default:
|
|
break;
|
|
}
|
|
while_out:
|
|
POP_TAG();
|
|
if (state) JUMP_TAG(state);
|
|
RETURN(result);
|
|
|
|
case NODE_UNTIL:
|
|
PUSH_TAG(PROT_NONE);
|
|
result = Qnil;
|
|
switch (state = EXEC_TAG()) {
|
|
case 0:
|
|
ruby_sourceline = nd_line(node);
|
|
if (node->nd_state && RTEST(rb_eval(self, node->nd_cond)))
|
|
goto until_out;
|
|
do {
|
|
until_redo:
|
|
rb_eval(self, node->nd_body);
|
|
until_next:
|
|
;
|
|
} while (!RTEST(rb_eval(self, node->nd_cond)));
|
|
break;
|
|
|
|
case TAG_REDO:
|
|
state = 0;
|
|
goto until_redo;
|
|
case TAG_NEXT:
|
|
state = 0;
|
|
goto until_next;
|
|
case TAG_BREAK:
|
|
state = 0;
|
|
result = prot_tag->retval;
|
|
default:
|
|
break;
|
|
}
|
|
until_out:
|
|
POP_TAG();
|
|
if (state) JUMP_TAG(state);
|
|
RETURN(result);
|
|
|
|
case NODE_BLOCK_PASS:
|
|
result = block_pass(self, node);
|
|
break;
|
|
|
|
case NODE_ITER:
|
|
case NODE_FOR:
|
|
{
|
|
iter_retry:
|
|
PUSH_TAG(PROT_FUNC);
|
|
PUSH_BLOCK(node->nd_var, node->nd_body);
|
|
|
|
state = EXEC_TAG();
|
|
if (state == 0) {
|
|
PUSH_ITER(ITER_PRE);
|
|
if (nd_type(node) == NODE_ITER) {
|
|
result = rb_eval(self, node->nd_iter);
|
|
}
|
|
else {
|
|
VALUE recv;
|
|
char *file = ruby_sourcefile;
|
|
int line = ruby_sourceline;
|
|
|
|
_block.flags &= ~BLOCK_D_SCOPE;
|
|
BEGIN_CALLARGS;
|
|
recv = rb_eval(self, node->nd_iter);
|
|
END_CALLARGS;
|
|
ruby_sourcefile = file;
|
|
ruby_sourceline = line;
|
|
result = rb_call(CLASS_OF(recv),recv,each,0,0,0);
|
|
}
|
|
POP_ITER();
|
|
}
|
|
else if (_block.tag->dst == state) {
|
|
state &= TAG_MASK;
|
|
if (state == TAG_RETURN || state == TAG_BREAK) {
|
|
result = prot_tag->retval;
|
|
}
|
|
}
|
|
POP_BLOCK();
|
|
POP_TAG();
|
|
switch (state) {
|
|
case 0:
|
|
break;
|
|
|
|
case TAG_RETRY:
|
|
goto iter_retry;
|
|
|
|
case TAG_BREAK:
|
|
break;
|
|
|
|
case TAG_RETURN:
|
|
return_value(result);
|
|
/* fall through */
|
|
default:
|
|
JUMP_TAG(state);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_BREAK:
|
|
if (node->nd_stts) {
|
|
return_value(avalue_to_svalue(rb_eval(self, node->nd_stts)));
|
|
}
|
|
else {
|
|
return_value(Qnil);
|
|
}
|
|
JUMP_TAG(TAG_BREAK);
|
|
break;
|
|
|
|
case NODE_NEXT:
|
|
CHECK_INTS;
|
|
if (node->nd_stts) {
|
|
return_value(avalue_to_svalue(rb_eval(self, node->nd_stts)));
|
|
}
|
|
else {
|
|
return_value(Qnil);
|
|
}
|
|
JUMP_TAG(TAG_NEXT);
|
|
break;
|
|
|
|
case NODE_REDO:
|
|
CHECK_INTS;
|
|
JUMP_TAG(TAG_REDO);
|
|
break;
|
|
|
|
case NODE_RETRY:
|
|
CHECK_INTS;
|
|
JUMP_TAG(TAG_RETRY);
|
|
break;
|
|
|
|
case NODE_RESTARGS:
|
|
case NODE_RESTARY:
|
|
result = rb_ary_to_ary(rb_eval(self, node->nd_head));
|
|
break;
|
|
|
|
case NODE_REXPAND:
|
|
result = avalue_to_svalue(rb_eval(self, node->nd_head));
|
|
break;
|
|
|
|
case NODE_YIELD:
|
|
if (node->nd_stts) {
|
|
result = avalue_to_yvalue(rb_eval(self, node->nd_stts));
|
|
}
|
|
else {
|
|
result = Qundef; /* no arg */
|
|
}
|
|
result = rb_yield_0(result, 0, 0, 0);
|
|
break;
|
|
|
|
case NODE_RESCUE:
|
|
retry_entry:
|
|
{
|
|
volatile VALUE e_info = ruby_errinfo;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = rb_eval(self, node->nd_head);
|
|
}
|
|
POP_TAG();
|
|
if (state == TAG_RAISE) {
|
|
NODE * volatile resq = node->nd_resq;
|
|
|
|
ruby_sourceline = nd_line(node);
|
|
while (resq) {
|
|
if (handle_rescue(self, resq)) {
|
|
state = 0;
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = rb_eval(self, resq->nd_body);
|
|
}
|
|
POP_TAG();
|
|
if (state == TAG_RETRY) {
|
|
state = 0;
|
|
ruby_errinfo = Qnil;
|
|
goto retry_entry;
|
|
}
|
|
if (state != TAG_RAISE) {
|
|
ruby_errinfo = e_info;
|
|
}
|
|
break;
|
|
}
|
|
resq = resq->nd_head; /* next rescue */
|
|
}
|
|
}
|
|
else if (node->nd_else) { /* else clause given */
|
|
if (!state) { /* no exception raised */
|
|
result = rb_eval(self, node->nd_else);
|
|
}
|
|
}
|
|
if (state) JUMP_TAG(state);
|
|
}
|
|
break;
|
|
|
|
case NODE_ENSURE:
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = rb_eval(self, node->nd_head);
|
|
}
|
|
POP_TAG();
|
|
if (node->nd_ensr) {
|
|
VALUE retval = prot_tag->retval; /* save retval */
|
|
VALUE errinfo = ruby_errinfo;
|
|
|
|
rb_eval(self, node->nd_ensr);
|
|
return_value(retval);
|
|
ruby_errinfo = errinfo;
|
|
}
|
|
if (state) JUMP_TAG(state);
|
|
break;
|
|
|
|
case NODE_AND:
|
|
result = rb_eval(self, node->nd_1st);
|
|
if (!RTEST(result)) break;
|
|
node = node->nd_2nd;
|
|
goto again;
|
|
|
|
case NODE_OR:
|
|
result = rb_eval(self, node->nd_1st);
|
|
if (RTEST(result)) break;
|
|
node = node->nd_2nd;
|
|
goto again;
|
|
|
|
case NODE_NOT:
|
|
if (RTEST(rb_eval(self, node->nd_body))) result = Qfalse;
|
|
else result = Qtrue;
|
|
break;
|
|
|
|
case NODE_DOT2:
|
|
case NODE_DOT3:
|
|
result = rb_range_new(rb_eval(self, node->nd_beg),
|
|
rb_eval(self, node->nd_end),
|
|
nd_type(node) == NODE_DOT3);
|
|
if (node->nd_state) break;
|
|
if (nd_type(node->nd_beg) == NODE_LIT && FIXNUM_P(node->nd_beg->nd_lit) &&
|
|
nd_type(node->nd_end) == NODE_LIT && FIXNUM_P(node->nd_end->nd_lit))
|
|
{
|
|
nd_set_type(node, NODE_LIT);
|
|
node->nd_lit = result;
|
|
}
|
|
else {
|
|
node->nd_state = 1;
|
|
}
|
|
break;
|
|
|
|
case NODE_FLIP2: /* like AWK */
|
|
{
|
|
VALUE *flip = rb_svar(node->nd_cnt);
|
|
if (!flip) rb_bug("unexpected local variable");
|
|
if (!RTEST(*flip)) {
|
|
if (RTEST(rb_eval(self, node->nd_beg))) {
|
|
*flip = RTEST(rb_eval(self, node->nd_end))?Qfalse:Qtrue;
|
|
result = Qtrue;
|
|
}
|
|
else {
|
|
result = Qfalse;
|
|
}
|
|
}
|
|
else {
|
|
if (RTEST(rb_eval(self, node->nd_end))) {
|
|
*flip = Qfalse;
|
|
}
|
|
result = Qtrue;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_FLIP3: /* like SED */
|
|
{
|
|
VALUE *flip = rb_svar(node->nd_cnt);
|
|
if (!flip) rb_bug("unexpected local variable");
|
|
if (!RTEST(*flip)) {
|
|
result = RTEST(rb_eval(self, node->nd_beg)) ? Qtrue : Qfalse;
|
|
*flip = result;
|
|
}
|
|
else {
|
|
if (RTEST(rb_eval(self, node->nd_end))) {
|
|
*flip = Qfalse;
|
|
}
|
|
result = Qtrue;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_RETURN:
|
|
if (node->nd_stts) {
|
|
return_value(avalue_to_svalue(rb_eval(self, node->nd_stts)));
|
|
}
|
|
else {
|
|
return_value(Qnil);
|
|
}
|
|
return_check();
|
|
JUMP_TAG(TAG_RETURN);
|
|
break;
|
|
|
|
case NODE_ARGSCAT:
|
|
result = rb_ary_concat(rb_eval(self, node->nd_head),
|
|
rb_eval(self, node->nd_body));
|
|
break;
|
|
|
|
case NODE_ARGSPUSH:
|
|
result = rb_ary_push(rb_ary_dup(rb_eval(self, node->nd_head)),
|
|
rb_eval(self, node->nd_body));
|
|
break;
|
|
|
|
case NODE_CALL:
|
|
{
|
|
VALUE recv;
|
|
int argc; VALUE *argv; /* used in SETUP_ARGS */
|
|
TMP_PROTECT;
|
|
|
|
BEGIN_CALLARGS;
|
|
recv = rb_eval(self, node->nd_recv);
|
|
SETUP_ARGS(node->nd_args);
|
|
END_CALLARGS;
|
|
|
|
result = rb_call(CLASS_OF(recv),recv,node->nd_mid,argc,argv,0);
|
|
}
|
|
break;
|
|
|
|
case NODE_FCALL:
|
|
{
|
|
int argc; VALUE *argv; /* used in SETUP_ARGS */
|
|
TMP_PROTECT;
|
|
|
|
BEGIN_CALLARGS;
|
|
SETUP_ARGS(node->nd_args);
|
|
END_CALLARGS;
|
|
|
|
result = rb_call(CLASS_OF(self),self,node->nd_mid,argc,argv,1);
|
|
}
|
|
break;
|
|
|
|
case NODE_VCALL:
|
|
result = rb_call(CLASS_OF(self),self,node->nd_mid,0,0,2);
|
|
break;
|
|
|
|
case NODE_SUPER:
|
|
case NODE_ZSUPER:
|
|
{
|
|
int argc; VALUE *argv; /* used in SETUP_ARGS */
|
|
TMP_PROTECT;
|
|
|
|
if (ruby_frame->last_class == 0) {
|
|
if (ruby_frame->last_func) {
|
|
rb_name_error(ruby_frame->last_func,
|
|
"superclass method `%s' disabled",
|
|
rb_id2name(ruby_frame->last_func));
|
|
}
|
|
else {
|
|
rb_raise(rb_eNoMethodError, "super called outside of method");
|
|
}
|
|
}
|
|
if (nd_type(node) == NODE_ZSUPER) {
|
|
argc = ruby_frame->argc;
|
|
argv = ruby_frame->argv;
|
|
}
|
|
else {
|
|
BEGIN_CALLARGS;
|
|
SETUP_ARGS(node->nd_args);
|
|
END_CALLARGS;
|
|
}
|
|
|
|
PUSH_ITER(ruby_iter->iter?ITER_PRE:ITER_NOT);
|
|
result = rb_call(RCLASS(ruby_frame->last_class)->super,
|
|
ruby_frame->self, ruby_frame->last_func,
|
|
argc, argv, 3);
|
|
POP_ITER();
|
|
}
|
|
break;
|
|
|
|
case NODE_SCOPE:
|
|
{
|
|
struct FRAME frame;
|
|
NODE *saved_cref = 0;
|
|
|
|
frame = *ruby_frame;
|
|
frame.tmp = ruby_frame;
|
|
ruby_frame = &frame;
|
|
|
|
PUSH_SCOPE();
|
|
PUSH_TAG(PROT_NONE);
|
|
if (node->nd_rval) {
|
|
saved_cref = ruby_cref;
|
|
ruby_cref = (NODE*)node->nd_rval;
|
|
ruby_frame->cbase = node->nd_rval;
|
|
}
|
|
if (node->nd_tbl) {
|
|
VALUE *vars = ALLOCA_N(VALUE, node->nd_tbl[0]+1);
|
|
*vars++ = (VALUE)node;
|
|
ruby_scope->local_vars = vars;
|
|
rb_mem_clear(ruby_scope->local_vars, node->nd_tbl[0]);
|
|
ruby_scope->local_tbl = node->nd_tbl;
|
|
}
|
|
else {
|
|
ruby_scope->local_vars = 0;
|
|
ruby_scope->local_tbl = 0;
|
|
}
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = rb_eval(self, node->nd_next);
|
|
}
|
|
POP_TAG();
|
|
POP_SCOPE();
|
|
ruby_frame = frame.tmp;
|
|
if (saved_cref)
|
|
ruby_cref = saved_cref;
|
|
if (state) JUMP_TAG(state);
|
|
}
|
|
break;
|
|
|
|
case NODE_OP_ASGN1:
|
|
{
|
|
int argc; VALUE *argv; /* used in SETUP_ARGS */
|
|
VALUE recv, val;
|
|
NODE *rval;
|
|
TMP_PROTECT;
|
|
|
|
recv = rb_eval(self, node->nd_recv);
|
|
rval = node->nd_args->nd_head;
|
|
SETUP_ARGS(node->nd_args->nd_next);
|
|
val = rb_funcall2(recv, aref, argc-1, argv);
|
|
switch (node->nd_mid) {
|
|
case 0: /* OR */
|
|
if (RTEST(val)) RETURN(val);
|
|
val = rb_eval(self, rval);
|
|
break;
|
|
case 1: /* AND */
|
|
if (!RTEST(val)) RETURN(val);
|
|
val = rb_eval(self, rval);
|
|
break;
|
|
default:
|
|
val = rb_funcall(val, node->nd_mid, 1, rb_eval(self, rval));
|
|
}
|
|
argv[argc-1] = val;
|
|
rb_funcall2(recv, aset, argc, argv);
|
|
result = val;
|
|
}
|
|
break;
|
|
|
|
case NODE_OP_ASGN2:
|
|
{
|
|
ID id = node->nd_next->nd_vid;
|
|
VALUE recv, val;
|
|
|
|
recv = rb_eval(self, node->nd_recv);
|
|
val = rb_funcall(recv, id, 0);
|
|
switch (node->nd_next->nd_mid) {
|
|
case 0: /* OR */
|
|
if (RTEST(val)) RETURN(val);
|
|
val = rb_eval(self, node->nd_value);
|
|
break;
|
|
case 1: /* AND */
|
|
if (!RTEST(val)) RETURN(val);
|
|
val = rb_eval(self, node->nd_value);
|
|
break;
|
|
default:
|
|
val = rb_funcall(val, node->nd_next->nd_mid, 1,
|
|
rb_eval(self, node->nd_value));
|
|
}
|
|
|
|
rb_funcall2(recv, node->nd_next->nd_aid, 1, &val);
|
|
result = val;
|
|
}
|
|
break;
|
|
|
|
case NODE_OP_ASGN_AND:
|
|
result = rb_eval(self, node->nd_head);
|
|
if (!RTEST(result)) break;
|
|
node = node->nd_value;
|
|
goto again;
|
|
|
|
case NODE_OP_ASGN_OR:
|
|
if ((node->nd_aid && !rb_ivar_defined(self, node->nd_aid)) ||
|
|
!RTEST(result = rb_eval(self, node->nd_head))) {
|
|
node = node->nd_value;
|
|
goto again;
|
|
}
|
|
break;
|
|
|
|
case NODE_MASGN:
|
|
result = massign(self, node, rb_eval(self, node->nd_value),0);
|
|
break;
|
|
|
|
case NODE_LASGN:
|
|
if (ruby_scope->local_vars == 0)
|
|
rb_bug("unexpected local variable assignment");
|
|
result = rb_eval(self, node->nd_value);
|
|
ruby_scope->local_vars[node->nd_cnt] = result;
|
|
break;
|
|
|
|
case NODE_DASGN:
|
|
result = rb_eval(self, node->nd_value);
|
|
dvar_asgn(node->nd_vid, result);
|
|
break;
|
|
|
|
case NODE_DASGN_CURR:
|
|
result = rb_eval(self, node->nd_value);
|
|
dvar_asgn_curr(node->nd_vid, result);
|
|
break;
|
|
|
|
case NODE_GASGN:
|
|
result = rb_eval(self, node->nd_value);
|
|
rb_gvar_set(node->nd_entry, result);
|
|
break;
|
|
|
|
case NODE_IASGN:
|
|
result = rb_eval(self, node->nd_value);
|
|
rb_ivar_set(self, node->nd_vid, result);
|
|
break;
|
|
|
|
case NODE_CDECL:
|
|
if (NIL_P(ruby_class)) {
|
|
rb_raise(rb_eTypeError, "no class/module to define constant");
|
|
}
|
|
result = rb_eval(self, node->nd_value);
|
|
rb_const_set(ruby_class, node->nd_vid, result);
|
|
break;
|
|
|
|
case NODE_CVDECL:
|
|
if (NIL_P(ruby_cbase)) {
|
|
rb_raise(rb_eTypeError, "no class/module to define class variable");
|
|
}
|
|
result = rb_eval(self, node->nd_value);
|
|
rb_cvar_set(cvar_cbase(), node->nd_vid, result, Qtrue);
|
|
break;
|
|
|
|
case NODE_CVASGN:
|
|
result = rb_eval(self, node->nd_value);
|
|
rb_cvar_set(cvar_cbase(), node->nd_vid, result, Qfalse);
|
|
break;
|
|
|
|
case NODE_LVAR:
|
|
if (ruby_scope->local_vars == 0) {
|
|
rb_bug("unexpected local variable");
|
|
}
|
|
result = ruby_scope->local_vars[node->nd_cnt];
|
|
break;
|
|
|
|
case NODE_DVAR:
|
|
result = rb_dvar_ref(node->nd_vid);
|
|
break;
|
|
|
|
case NODE_GVAR:
|
|
result = rb_gvar_get(node->nd_entry);
|
|
break;
|
|
|
|
case NODE_IVAR:
|
|
result = rb_ivar_get(self, node->nd_vid);
|
|
break;
|
|
|
|
case NODE_CONST:
|
|
result = ev_const_get(RNODE(ruby_frame->cbase), node->nd_vid, self);
|
|
break;
|
|
|
|
case NODE_CVAR:
|
|
result = rb_cvar_get(cvar_cbase(), node->nd_vid);
|
|
break;
|
|
|
|
case NODE_BLOCK_ARG:
|
|
if (ruby_scope->local_vars == 0)
|
|
rb_bug("unexpected block argument");
|
|
if (rb_block_given_p()) {
|
|
result = rb_f_lambda();
|
|
ruby_scope->local_vars[node->nd_cnt] = result;
|
|
}
|
|
else {
|
|
result = Qnil;
|
|
}
|
|
break;
|
|
|
|
case NODE_COLON2:
|
|
{
|
|
VALUE klass;
|
|
|
|
klass = rb_eval(self, node->nd_head);
|
|
switch (TYPE(klass)) {
|
|
case T_CLASS:
|
|
case T_MODULE:
|
|
break;
|
|
default:
|
|
return rb_funcall(klass, node->nd_mid, 0, 0);
|
|
}
|
|
result = rb_const_get(klass, node->nd_mid);
|
|
}
|
|
break;
|
|
|
|
case NODE_COLON3:
|
|
result = rb_const_get_at(rb_cObject, node->nd_mid);
|
|
break;
|
|
|
|
case NODE_NTH_REF:
|
|
result = rb_reg_nth_match(node->nd_nth, MATCH_DATA);
|
|
break;
|
|
|
|
case NODE_BACK_REF:
|
|
switch (node->nd_nth) {
|
|
case '&':
|
|
result = rb_reg_last_match(MATCH_DATA);
|
|
break;
|
|
case '`':
|
|
result = rb_reg_match_pre(MATCH_DATA);
|
|
break;
|
|
case '\'':
|
|
result = rb_reg_match_post(MATCH_DATA);
|
|
break;
|
|
case '+':
|
|
result = rb_reg_match_last(MATCH_DATA);
|
|
break;
|
|
default:
|
|
rb_bug("unexpected back-ref");
|
|
}
|
|
break;
|
|
|
|
case NODE_HASH:
|
|
{
|
|
NODE *list;
|
|
VALUE hash = rb_hash_new();
|
|
VALUE key, val;
|
|
|
|
list = node->nd_head;
|
|
while (list) {
|
|
key = rb_eval(self, list->nd_head);
|
|
list = list->nd_next;
|
|
if (list == 0)
|
|
rb_bug("odd number list for Hash");
|
|
val = rb_eval(self, list->nd_head);
|
|
list = list->nd_next;
|
|
rb_hash_aset(hash, key, val);
|
|
}
|
|
result = hash;
|
|
}
|
|
break;
|
|
|
|
case NODE_ZARRAY: /* zero length list */
|
|
result = rb_ary_new();
|
|
break;
|
|
|
|
case NODE_ARRAY:
|
|
{
|
|
VALUE ary;
|
|
int i;
|
|
|
|
i = node->nd_alen;
|
|
ary = rb_ary_new2(i);
|
|
for (i=0;node;node=node->nd_next) {
|
|
RARRAY(ary)->ptr[i++] = rb_eval(self, node->nd_head);
|
|
RARRAY(ary)->len = i;
|
|
}
|
|
|
|
result = ary;
|
|
}
|
|
break;
|
|
|
|
case NODE_STR:
|
|
result = rb_str_new3(node->nd_lit);
|
|
break;
|
|
|
|
case NODE_EVSTR:
|
|
ruby_sourceline = nd_line(node);
|
|
result = rb_obj_as_string(rb_eval(self, node->nd_body));
|
|
break;
|
|
|
|
case NODE_DSTR:
|
|
case NODE_DXSTR:
|
|
case NODE_DREGX:
|
|
case NODE_DREGX_ONCE:
|
|
{
|
|
VALUE str, str2;
|
|
NODE *list = node->nd_next;
|
|
|
|
str = rb_str_new3(node->nd_lit);
|
|
while (list) {
|
|
if (list->nd_head) {
|
|
switch (nd_type(list->nd_head)) {
|
|
case NODE_STR:
|
|
str2 = list->nd_head->nd_lit;
|
|
break;
|
|
default:
|
|
str2 = rb_eval(self, list->nd_head);
|
|
break;
|
|
}
|
|
rb_str_append(str, str2);
|
|
OBJ_INFECT(str, str2);
|
|
}
|
|
list = list->nd_next;
|
|
}
|
|
switch (nd_type(node)) {
|
|
case NODE_DREGX:
|
|
result = rb_reg_new(RSTRING(str)->ptr, RSTRING(str)->len,
|
|
node->nd_cflag);
|
|
break;
|
|
case NODE_DREGX_ONCE: /* regexp expand once */
|
|
result = rb_reg_new(RSTRING(str)->ptr, RSTRING(str)->len,
|
|
node->nd_cflag);
|
|
nd_set_type(node, NODE_LIT);
|
|
node->nd_lit = result;
|
|
break;
|
|
case NODE_DXSTR:
|
|
result = rb_funcall(self, '`', 1, str);
|
|
break;
|
|
default:
|
|
result = str;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NODE_XSTR:
|
|
result = rb_funcall(self, '`', 1, node->nd_lit);
|
|
break;
|
|
|
|
case NODE_LIT:
|
|
result = node->nd_lit;
|
|
break;
|
|
|
|
case NODE_ATTRSET:
|
|
if (ruby_frame->argc != 1)
|
|
rb_raise(rb_eArgError, "wrong number of arguments(%d for 1)",
|
|
ruby_frame->argc);
|
|
result = rb_ivar_set(self, node->nd_vid, ruby_frame->argv[0]);
|
|
break;
|
|
|
|
case NODE_DEFN:
|
|
if (node->nd_defn) {
|
|
NODE *body, *defn;
|
|
VALUE origin;
|
|
int noex;
|
|
|
|
if (NIL_P(ruby_class)) {
|
|
rb_raise(rb_eTypeError, "no class/module to add method");
|
|
}
|
|
if (ruby_class == rb_cClass && node->nd_mid == alloc) {
|
|
rb_raise(rb_eNameError, "redefining Class#allocate will cause infinite loop");
|
|
}
|
|
if (ruby_class == rb_cObject && node->nd_mid == init) {
|
|
rb_warn("redefining Object#initialize may cause infinite loop");
|
|
}
|
|
if (node->nd_mid == __id__ || node->nd_mid == __send__) {
|
|
rb_warn("redefining `%s' may cause serious problem",
|
|
rb_id2name(node->nd_mid));
|
|
}
|
|
rb_frozen_class_p(ruby_class);
|
|
body = search_method(ruby_class, node->nd_mid, &origin);
|
|
if (body){
|
|
if (RTEST(ruby_verbose) && ruby_class == origin && body->nd_cnt == 0) {
|
|
rb_warning("method redefined; discarding old %s", rb_id2name(node->nd_mid));
|
|
}
|
|
if (node->nd_noex) { /* toplevel */
|
|
/* should upgrade to rb_warn() if no super was called inside? */
|
|
rb_warning("overriding global function `%s'",
|
|
rb_id2name(node->nd_mid));
|
|
}
|
|
}
|
|
|
|
if (SCOPE_TEST(SCOPE_PRIVATE) || node->nd_mid == init) {
|
|
noex = NOEX_PRIVATE;
|
|
}
|
|
else if (SCOPE_TEST(SCOPE_PROTECTED)) {
|
|
noex = NOEX_PROTECTED;
|
|
}
|
|
else if (ruby_class == rb_cObject) {
|
|
noex = node->nd_noex;
|
|
}
|
|
else {
|
|
noex = NOEX_PUBLIC;
|
|
}
|
|
if (body && origin == ruby_class && body->nd_noex & NOEX_UNDEF) {
|
|
noex |= NOEX_UNDEF;
|
|
}
|
|
|
|
defn = copy_node_scope(node->nd_defn, ruby_cref);
|
|
rb_add_method(ruby_class, node->nd_mid, defn, noex);
|
|
if (scope_vmode == SCOPE_MODFUNC) {
|
|
rb_add_method(rb_singleton_class(ruby_class),
|
|
node->nd_mid, defn, NOEX_PUBLIC);
|
|
rb_funcall(ruby_class, singleton_added, 1, ID2SYM(node->nd_mid));
|
|
}
|
|
if (FL_TEST(ruby_class, FL_SINGLETON)) {
|
|
rb_funcall(rb_iv_get(ruby_class, "__attached__"),
|
|
singleton_added, 1, ID2SYM(node->nd_mid));
|
|
}
|
|
else {
|
|
rb_funcall(ruby_class, added, 1, ID2SYM(node->nd_mid));
|
|
}
|
|
result = Qnil;
|
|
}
|
|
break;
|
|
|
|
case NODE_DEFS:
|
|
if (node->nd_defn) {
|
|
VALUE recv = rb_eval(self, node->nd_recv);
|
|
VALUE klass;
|
|
NODE *body = 0, *defn;
|
|
|
|
if (ruby_safe_level >= 4 && !OBJ_TAINTED(recv)) {
|
|
rb_raise(rb_eSecurityError, "Insecure: can't define singleton method");
|
|
}
|
|
if (FIXNUM_P(recv) || SYMBOL_P(recv)) {
|
|
rb_raise(rb_eTypeError,
|
|
"can't define singleton method \"%s\" for %s",
|
|
rb_id2name(node->nd_mid),
|
|
rb_class2name(CLASS_OF(recv)));
|
|
}
|
|
|
|
if (OBJ_FROZEN(recv)) rb_error_frozen("object");
|
|
klass = rb_singleton_class(recv);
|
|
if (st_lookup(RCLASS(klass)->m_tbl, node->nd_mid, &body)) {
|
|
if (ruby_safe_level >= 4) {
|
|
rb_raise(rb_eSecurityError, "redefining method prohibited");
|
|
}
|
|
if (RTEST(ruby_verbose)) {
|
|
rb_warning("redefine %s", rb_id2name(node->nd_mid));
|
|
}
|
|
}
|
|
defn = copy_node_scope(node->nd_defn, ruby_cref);
|
|
defn->nd_rval = (VALUE)ruby_cref;
|
|
rb_add_method(klass, node->nd_mid, defn,
|
|
NOEX_PUBLIC|(body?body->nd_noex&NOEX_UNDEF:0));
|
|
rb_funcall(recv, singleton_added, 1, ID2SYM(node->nd_mid));
|
|
result = Qnil;
|
|
}
|
|
break;
|
|
|
|
case NODE_UNDEF:
|
|
if (NIL_P(ruby_class)) {
|
|
rb_raise(rb_eTypeError, "no class to undef method");
|
|
}
|
|
rb_undef(ruby_class, node->nd_mid);
|
|
result = Qnil;
|
|
break;
|
|
|
|
case NODE_ALIAS:
|
|
if (NIL_P(ruby_class)) {
|
|
rb_raise(rb_eTypeError, "no class to make alias");
|
|
}
|
|
rb_alias(ruby_class, node->nd_new, node->nd_old);
|
|
result = Qnil;
|
|
break;
|
|
|
|
case NODE_VALIAS:
|
|
rb_alias_variable(node->nd_new, node->nd_old);
|
|
result = Qnil;
|
|
break;
|
|
|
|
case NODE_CLASS:
|
|
{
|
|
VALUE super, klass, tmp;
|
|
|
|
if (NIL_P(ruby_class)) {
|
|
rb_raise(rb_eTypeError, "no outer class/module");
|
|
}
|
|
if (node->nd_super) {
|
|
super = superclass(self, node->nd_super);
|
|
}
|
|
else {
|
|
super = 0;
|
|
}
|
|
|
|
klass = 0;
|
|
if ((ruby_class == rb_cObject) && rb_autoload_defined(node->nd_cname)) {
|
|
rb_autoload_load(node->nd_cname);
|
|
}
|
|
if (rb_const_defined_at(ruby_class, node->nd_cname)) {
|
|
klass = rb_const_get(ruby_class, node->nd_cname);
|
|
}
|
|
if (klass) {
|
|
if (TYPE(klass) != T_CLASS) {
|
|
rb_raise(rb_eTypeError, "%s is not a class",
|
|
rb_id2name(node->nd_cname));
|
|
}
|
|
if (super) {
|
|
tmp = rb_class_real(RCLASS(klass)->super);
|
|
if (tmp != super) {
|
|
goto override_class;
|
|
}
|
|
}
|
|
if (ruby_safe_level >= 4) {
|
|
rb_raise(rb_eSecurityError, "extending class prohibited");
|
|
}
|
|
}
|
|
else {
|
|
override_class:
|
|
if (!super) super = rb_cObject;
|
|
klass = rb_define_class_id(node->nd_cname, super);
|
|
rb_set_class_path(klass,ruby_class,rb_id2name(node->nd_cname));
|
|
rb_class_inherited(super, klass);
|
|
rb_const_set(ruby_class, node->nd_cname, klass);
|
|
}
|
|
if (ruby_wrapper) {
|
|
rb_extend_object(klass, ruby_wrapper);
|
|
rb_include_module(klass, ruby_wrapper);
|
|
}
|
|
|
|
result = module_setup(klass, node->nd_body);
|
|
}
|
|
break;
|
|
|
|
case NODE_MODULE:
|
|
{
|
|
VALUE module;
|
|
|
|
if (NIL_P(ruby_class)) {
|
|
rb_raise(rb_eTypeError, "no outer class/module");
|
|
}
|
|
module = 0;
|
|
if ((ruby_class == rb_cObject) && rb_autoload_defined(node->nd_cname)) {
|
|
rb_autoload_load(node->nd_cname);
|
|
}
|
|
if (rb_const_defined_at(ruby_class, node->nd_cname)) {
|
|
module = rb_const_get(ruby_class, node->nd_cname);
|
|
}
|
|
if (module) {
|
|
if (TYPE(module) != T_MODULE) {
|
|
rb_raise(rb_eTypeError, "%s is not a module",
|
|
rb_id2name(node->nd_cname));
|
|
}
|
|
if (ruby_safe_level >= 4) {
|
|
rb_raise(rb_eSecurityError, "extending module prohibited");
|
|
}
|
|
}
|
|
else {
|
|
module = rb_define_module_id(node->nd_cname);
|
|
rb_const_set(ruby_class, node->nd_cname, module);
|
|
rb_set_class_path(module,ruby_class,rb_id2name(node->nd_cname));
|
|
}
|
|
if (ruby_wrapper) {
|
|
rb_extend_object(module, ruby_wrapper);
|
|
rb_include_module(module, ruby_wrapper);
|
|
}
|
|
|
|
result = module_setup(module, node->nd_body);
|
|
}
|
|
break;
|
|
|
|
case NODE_SCLASS:
|
|
{
|
|
VALUE klass;
|
|
|
|
result = rb_eval(self, node->nd_recv);
|
|
if (FIXNUM_P(result) || SYMBOL_P(result)) {
|
|
rb_raise(rb_eTypeError, "no virtual class for %s",
|
|
rb_class2name(CLASS_OF(result)));
|
|
}
|
|
if (ruby_safe_level >= 4 && !OBJ_TAINTED(result))
|
|
rb_raise(rb_eSecurityError, "Insecure: can't extend object");
|
|
klass = rb_singleton_class(result);
|
|
|
|
if (ruby_wrapper) {
|
|
rb_extend_object(klass, ruby_wrapper);
|
|
rb_include_module(klass, ruby_wrapper);
|
|
}
|
|
|
|
result = module_setup(klass, node->nd_body);
|
|
}
|
|
break;
|
|
|
|
case NODE_DEFINED:
|
|
{
|
|
char buf[20];
|
|
char *desc = is_defined(self, node->nd_head, buf);
|
|
|
|
if (desc) result = rb_str_new2(desc);
|
|
else result = Qnil;
|
|
}
|
|
break;
|
|
|
|
case NODE_NEWLINE:
|
|
ruby_sourcefile = node->nd_file;
|
|
ruby_sourceline = node->nd_nth;
|
|
if (trace_func) {
|
|
call_trace_func("line", ruby_sourcefile, ruby_sourceline, self,
|
|
ruby_frame->last_func,
|
|
ruby_frame->last_class);
|
|
}
|
|
node = node->nd_next;
|
|
goto again;
|
|
|
|
default:
|
|
rb_bug("unknown node type %d", nd_type(node));
|
|
}
|
|
finish:
|
|
CHECK_INTS;
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
module_setup(module, n)
|
|
VALUE module;
|
|
NODE *n;
|
|
{
|
|
NODE * volatile node = n;
|
|
int state;
|
|
struct FRAME frame;
|
|
VALUE result; /* OK */
|
|
char *file = ruby_sourcefile;
|
|
int line = ruby_sourceline;
|
|
TMP_PROTECT;
|
|
|
|
frame = *ruby_frame;
|
|
frame.tmp = ruby_frame;
|
|
ruby_frame = &frame;
|
|
|
|
PUSH_CLASS();
|
|
ruby_class = module;
|
|
PUSH_SCOPE();
|
|
PUSH_VARS();
|
|
|
|
if (node->nd_tbl) {
|
|
VALUE *vars = TMP_ALLOC(node->nd_tbl[0]+1);
|
|
*vars++ = (VALUE)node;
|
|
ruby_scope->local_vars = vars;
|
|
rb_mem_clear(ruby_scope->local_vars, node->nd_tbl[0]);
|
|
ruby_scope->local_tbl = node->nd_tbl;
|
|
}
|
|
else {
|
|
ruby_scope->local_vars = 0;
|
|
ruby_scope->local_tbl = 0;
|
|
}
|
|
|
|
PUSH_CREF(module);
|
|
ruby_frame->cbase = (VALUE)ruby_cref;
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
if (trace_func) {
|
|
call_trace_func("class", file, line, ruby_class,
|
|
ruby_frame->last_func,
|
|
ruby_frame->last_class);
|
|
}
|
|
result = rb_eval(ruby_class, node->nd_next);
|
|
}
|
|
POP_TAG();
|
|
POP_CREF();
|
|
POP_VARS();
|
|
POP_SCOPE();
|
|
POP_CLASS();
|
|
|
|
ruby_frame = frame.tmp;
|
|
if (trace_func) {
|
|
call_trace_func("end", file, line, 0,
|
|
ruby_frame->last_func, ruby_frame->last_class);
|
|
}
|
|
if (state) JUMP_TAG(state);
|
|
|
|
return result;
|
|
}
|
|
|
|
int
|
|
rb_respond_to(obj, id)
|
|
VALUE obj;
|
|
ID id;
|
|
{
|
|
if (rb_method_boundp(CLASS_OF(obj), id, 0)) {
|
|
return Qtrue;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_obj_respond_to(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
VALUE mid, priv;
|
|
ID id;
|
|
|
|
rb_scan_args(argc, argv, "11", &mid, &priv);
|
|
id = rb_to_id(mid);
|
|
if (rb_method_boundp(CLASS_OF(obj), id, !RTEST(priv))) {
|
|
return Qtrue;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_method_defined(mod, mid)
|
|
VALUE mod, mid;
|
|
{
|
|
if (rb_method_boundp(mod, rb_to_id(mid), 1)) {
|
|
return Qtrue;
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
NORETURN(static void terminate_process _((int, const char*, int)));
|
|
static void
|
|
terminate_process(status, mesg, mlen)
|
|
int status;
|
|
const char *mesg;
|
|
int mlen;
|
|
{
|
|
VALUE exit = rb_exc_new(rb_eSystemExit, mesg, mlen);
|
|
|
|
rb_iv_set(exit, "status", INT2NUM(status));
|
|
rb_exc_raise(exit);
|
|
}
|
|
|
|
void
|
|
rb_exit(status)
|
|
int status;
|
|
{
|
|
if (prot_tag) {
|
|
terminate_process(status, "exit", 4);
|
|
}
|
|
ruby_finalize();
|
|
exit(status);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_exit(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
VALUE status;
|
|
int istatus;
|
|
|
|
rb_secure(4);
|
|
if (rb_scan_args(argc, argv, "01", &status) == 1) {
|
|
istatus = NUM2INT(status);
|
|
}
|
|
else {
|
|
istatus = 0;
|
|
}
|
|
rb_exit(istatus);
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_abort(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
rb_secure(4);
|
|
if (argc == 0) {
|
|
if (!NIL_P(ruby_errinfo)) {
|
|
error_print();
|
|
}
|
|
rb_exit(1);
|
|
}
|
|
else {
|
|
VALUE mesg;
|
|
|
|
rb_scan_args(argc, argv, "1", &mesg);
|
|
StringValue(argv[0]);
|
|
rb_io_puts(argc, argv, rb_stderr);
|
|
terminate_process(1, RSTRING(argv[0])->ptr, RSTRING(argv[0])->len);
|
|
}
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
void
|
|
rb_iter_break()
|
|
{
|
|
JUMP_TAG(TAG_BREAK);
|
|
}
|
|
|
|
NORETURN(static void rb_longjmp _((int, VALUE)));
|
|
static VALUE make_backtrace _((void));
|
|
|
|
static void
|
|
rb_longjmp(tag, mesg)
|
|
int tag;
|
|
VALUE mesg;
|
|
{
|
|
VALUE at;
|
|
|
|
if (NIL_P(mesg)) mesg = ruby_errinfo;
|
|
if (NIL_P(mesg)) {
|
|
mesg = rb_exc_new(rb_eRuntimeError, 0, 0);
|
|
}
|
|
|
|
if (ruby_sourcefile && !NIL_P(mesg)) {
|
|
at = get_backtrace(mesg);
|
|
if (NIL_P(at)) {
|
|
at = make_backtrace();
|
|
set_backtrace(mesg, at);
|
|
}
|
|
}
|
|
if (!NIL_P(mesg)) {
|
|
ruby_errinfo = mesg;
|
|
}
|
|
|
|
if (RTEST(ruby_debug) && !NIL_P(ruby_errinfo)
|
|
&& !rb_obj_is_kind_of(ruby_errinfo, rb_eSystemExit)) {
|
|
VALUE e = ruby_errinfo;
|
|
|
|
StringValue(e);
|
|
fprintf(stderr, "Exception `%s' at %s:%d - %s\n",
|
|
rb_class2name(CLASS_OF(ruby_errinfo)),
|
|
ruby_sourcefile, ruby_sourceline,
|
|
RSTRING(e)->ptr);
|
|
}
|
|
|
|
rb_trap_restore_mask();
|
|
if (trace_func && tag != TAG_FATAL) {
|
|
call_trace_func("raise", ruby_sourcefile, ruby_sourceline,
|
|
ruby_frame->self,
|
|
ruby_frame->last_func,
|
|
ruby_frame->last_class);
|
|
}
|
|
if (!prot_tag) {
|
|
error_print();
|
|
}
|
|
JUMP_TAG(tag);
|
|
}
|
|
|
|
void
|
|
rb_exc_raise(mesg)
|
|
VALUE mesg;
|
|
{
|
|
rb_longjmp(TAG_RAISE, mesg);
|
|
}
|
|
|
|
void
|
|
rb_exc_fatal(mesg)
|
|
VALUE mesg;
|
|
{
|
|
rb_longjmp(TAG_FATAL, mesg);
|
|
}
|
|
|
|
void
|
|
rb_interrupt()
|
|
{
|
|
rb_raise(rb_eInterrupt, "");
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_raise(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE mesg;
|
|
ID exception;
|
|
int n;
|
|
|
|
mesg = Qnil;
|
|
switch (argc) {
|
|
case 0:
|
|
mesg = Qnil;
|
|
break;
|
|
case 1:
|
|
if (NIL_P(argv[0])) break;
|
|
if (TYPE(argv[0]) == T_STRING) {
|
|
mesg = rb_exc_new3(rb_eRuntimeError, argv[0]);
|
|
break;
|
|
}
|
|
n = 0;
|
|
goto exception_call;
|
|
|
|
case 2:
|
|
case 3:
|
|
n = 1;
|
|
exception_call:
|
|
exception = rb_intern("exception");
|
|
if (!rb_respond_to(argv[0], exception)) {
|
|
rb_raise(rb_eTypeError, "exception class/object expected");
|
|
}
|
|
mesg = rb_funcall(argv[0], exception, n, argv[1]);
|
|
break;
|
|
default:
|
|
rb_raise(rb_eArgError, "wrong number of arguments");
|
|
break;
|
|
}
|
|
if (argc > 0) {
|
|
if (!rb_obj_is_kind_of(mesg, rb_eException))
|
|
rb_raise(rb_eTypeError, "exception object expected");
|
|
set_backtrace(mesg, (argc>2)?argv[2]:Qnil);
|
|
}
|
|
|
|
if (ruby_frame != top_frame) {
|
|
PUSH_FRAME(); /* fake frame */
|
|
*ruby_frame = *_frame.prev->prev;
|
|
rb_longjmp(TAG_RAISE, mesg);
|
|
POP_FRAME();
|
|
}
|
|
rb_longjmp(TAG_RAISE, mesg);
|
|
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
void
|
|
rb_jump_tag(tag)
|
|
int tag;
|
|
{
|
|
JUMP_TAG(tag);
|
|
}
|
|
|
|
int
|
|
rb_block_given_p()
|
|
{
|
|
if (ruby_frame->iter && ruby_block)
|
|
return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
int
|
|
rb_iterator_p()
|
|
{
|
|
return rb_block_given_p();
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_block_given_p()
|
|
{
|
|
if (ruby_frame->prev && ruby_frame->prev->iter && ruby_block)
|
|
return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_yield_0(val, self, klass, pcall)
|
|
VALUE val, self, klass; /* OK */
|
|
int pcall;
|
|
{
|
|
NODE *node;
|
|
volatile VALUE result = Qnil;
|
|
volatile VALUE old_cref;
|
|
volatile VALUE old_wrapper;
|
|
struct BLOCK * volatile block;
|
|
struct SCOPE * volatile old_scope;
|
|
struct FRAME frame;
|
|
char *const file = ruby_sourcefile;
|
|
int line = ruby_sourceline;
|
|
int state;
|
|
static unsigned serial = 1;
|
|
|
|
if (!rb_block_given_p()) {
|
|
localjump_error("no block given", Qnil);
|
|
}
|
|
|
|
PUSH_VARS();
|
|
PUSH_CLASS();
|
|
block = ruby_block;
|
|
frame = block->frame;
|
|
frame.prev = ruby_frame;
|
|
ruby_frame = &(frame);
|
|
old_cref = (VALUE)ruby_cref;
|
|
ruby_cref = (NODE*)ruby_frame->cbase;
|
|
old_wrapper = ruby_wrapper;
|
|
ruby_wrapper = block->wrapper;
|
|
old_scope = ruby_scope;
|
|
ruby_scope = block->scope;
|
|
ruby_block = block->prev;
|
|
if (block->flags & BLOCK_D_SCOPE) {
|
|
/* put place holder for dynamic (in-block) local variables */
|
|
ruby_dyna_vars = new_dvar(0, 0, block->dyna_vars);
|
|
}
|
|
else {
|
|
/* FOR does not introduce new scope */
|
|
ruby_dyna_vars = block->dyna_vars;
|
|
}
|
|
ruby_class = klass?klass:block->klass;
|
|
if (!klass) self = block->self;
|
|
node = block->body;
|
|
|
|
if (block->var) {
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
if (block->var == (NODE*)1) {
|
|
if (pcall && RARRAY(val)->len != 0) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments (%ld for 0)",
|
|
RARRAY(val)->len);
|
|
}
|
|
}
|
|
else if (block->var == (NODE*)2) {
|
|
if (TYPE(val) == T_ARRAY && RARRAY(val)->len != 0) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments (%ld for 0)",
|
|
RARRAY(val)->len);
|
|
}
|
|
}
|
|
else if (nd_type(block->var) == NODE_MASGN) {
|
|
massign(self, block->var, val, pcall);
|
|
}
|
|
else {
|
|
if (pcall) {
|
|
val = avalue_to_yvalue(val);
|
|
}
|
|
assign(self, block->var, val, pcall);
|
|
}
|
|
}
|
|
POP_TAG();
|
|
if (state) goto pop_state;
|
|
}
|
|
else if (pcall) {
|
|
val = avalue_to_yvalue(val);
|
|
}
|
|
|
|
PUSH_ITER(block->iter);
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
redo:
|
|
if (!node) {
|
|
result = Qnil;
|
|
}
|
|
else if (nd_type(node) == NODE_CFUNC || nd_type(node) == NODE_IFUNC) {
|
|
result = (*node->nd_cfnc)(val, node->nd_tval, self);
|
|
}
|
|
else {
|
|
result = rb_eval(self, node);
|
|
}
|
|
}
|
|
else {
|
|
switch (state) {
|
|
case TAG_REDO:
|
|
state = 0;
|
|
CHECK_INTS;
|
|
goto redo;
|
|
case TAG_NEXT:
|
|
state = 0;
|
|
result = prot_tag->retval;
|
|
break;
|
|
case TAG_BREAK:
|
|
case TAG_RETURN:
|
|
state |= (serial++ << 8);
|
|
state |= 0x10;
|
|
block->tag->dst = state;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
POP_TAG();
|
|
POP_ITER();
|
|
pop_state:
|
|
POP_CLASS();
|
|
if (ruby_dyna_vars && (block->flags & BLOCK_D_SCOPE) &&
|
|
!FL_TEST(ruby_dyna_vars, DVAR_DONT_RECYCLE)) {
|
|
struct RVarmap *vars = ruby_dyna_vars;
|
|
|
|
if (ruby_dyna_vars->id == 0) {
|
|
vars = ruby_dyna_vars->next;
|
|
rb_gc_force_recycle((VALUE)ruby_dyna_vars);
|
|
while (vars && vars->id != 0 && vars != block->dyna_vars) {
|
|
struct RVarmap *tmp = vars->next;
|
|
rb_gc_force_recycle((VALUE)vars);
|
|
vars = tmp;
|
|
}
|
|
}
|
|
}
|
|
POP_VARS();
|
|
ruby_block = block;
|
|
ruby_frame = ruby_frame->prev;
|
|
ruby_cref = (NODE*)old_cref;
|
|
ruby_wrapper = old_wrapper;
|
|
if (ruby_scope->flags & SCOPE_DONT_RECYCLE)
|
|
scope_dup(old_scope);
|
|
ruby_scope = old_scope;
|
|
ruby_sourcefile = file;
|
|
ruby_sourceline = line;
|
|
if (state) {
|
|
if (!block->tag) {
|
|
switch (state & TAG_MASK) {
|
|
case TAG_BREAK:
|
|
case TAG_RETURN:
|
|
jump_tag_but_local_jump(state & TAG_MASK);
|
|
break;
|
|
}
|
|
}
|
|
JUMP_TAG(state);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
VALUE
|
|
rb_yield(val)
|
|
VALUE val;
|
|
{
|
|
return rb_yield_0(val, 0, 0, 0);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_loop()
|
|
{
|
|
for (;;) {
|
|
rb_yield_0(Qundef, 0, 0, 0);
|
|
CHECK_INTS;
|
|
}
|
|
return Qnil; /* dummy */
|
|
}
|
|
|
|
static VALUE
|
|
massign(self, node, val, pcall)
|
|
VALUE self;
|
|
NODE *node;
|
|
VALUE val;
|
|
int pcall;
|
|
{
|
|
NODE *list;
|
|
long i = 0, len;
|
|
|
|
if (!pcall) {
|
|
val = svalue_to_mvalue(val);
|
|
}
|
|
len = RARRAY(val)->len;
|
|
list = node->nd_head;
|
|
for (i=0; list && i<len; i++) {
|
|
assign(self, list->nd_head, RARRAY(val)->ptr[i], pcall);
|
|
list = list->nd_next;
|
|
}
|
|
if (pcall && list) goto arg_error;
|
|
if (node->nd_args) {
|
|
if (node->nd_args == (NODE*)-1) {
|
|
/* no check for mere `*' */
|
|
}
|
|
else if (!list && i<len) {
|
|
assign(self, node->nd_args, rb_ary_new4(len-i, RARRAY(val)->ptr+i), pcall);
|
|
}
|
|
else {
|
|
assign(self, node->nd_args, rb_ary_new2(0), pcall);
|
|
}
|
|
}
|
|
else if (pcall && i < len) {
|
|
goto arg_error;
|
|
}
|
|
|
|
while (list) {
|
|
i++;
|
|
assign(self, list->nd_head, Qnil, pcall);
|
|
list = list->nd_next;
|
|
}
|
|
return val;
|
|
|
|
arg_error:
|
|
while (list) {
|
|
i++;
|
|
list = list->nd_next;
|
|
}
|
|
rb_raise(rb_eArgError, "wrong number of arguments (%ld for %ld)", len, i);
|
|
}
|
|
|
|
static void
|
|
assign(self, lhs, val, pcall)
|
|
VALUE self;
|
|
NODE *lhs;
|
|
VALUE val;
|
|
int pcall;
|
|
{
|
|
if (val == Qundef) {
|
|
rb_warning("assigning void value");
|
|
val = Qnil;
|
|
}
|
|
switch (nd_type(lhs)) {
|
|
case NODE_GASGN:
|
|
rb_gvar_set(lhs->nd_entry, val);
|
|
break;
|
|
|
|
case NODE_IASGN:
|
|
rb_ivar_set(self, lhs->nd_vid, val);
|
|
break;
|
|
|
|
case NODE_LASGN:
|
|
if (ruby_scope->local_vars == 0)
|
|
rb_bug("unexpected local variable assignment");
|
|
ruby_scope->local_vars[lhs->nd_cnt] = val;
|
|
break;
|
|
|
|
case NODE_DASGN:
|
|
dvar_asgn(lhs->nd_vid, val);
|
|
break;
|
|
|
|
case NODE_DASGN_CURR:
|
|
dvar_asgn_curr(lhs->nd_vid, val);
|
|
break;
|
|
|
|
case NODE_CDECL:
|
|
rb_const_set(ruby_class, lhs->nd_vid, val);
|
|
break;
|
|
|
|
case NODE_CVDECL:
|
|
if (RTEST(ruby_verbose) && FL_TEST(ruby_cbase, FL_SINGLETON)) {
|
|
rb_warn("declaring singleton class variable");
|
|
}
|
|
rb_cvar_set(cvar_cbase(), lhs->nd_vid, val, Qtrue);
|
|
break;
|
|
|
|
case NODE_CVASGN:
|
|
rb_cvar_set(cvar_cbase(), lhs->nd_vid, val, Qfalse);
|
|
break;
|
|
|
|
case NODE_MASGN:
|
|
massign(self, lhs, svalue_to_mvalue(val), pcall);
|
|
break;
|
|
|
|
case NODE_CALL:
|
|
{
|
|
VALUE recv;
|
|
recv = rb_eval(self, lhs->nd_recv);
|
|
if (!lhs->nd_args) {
|
|
/* attr set */
|
|
rb_call(CLASS_OF(recv), recv, lhs->nd_mid, 1, &val, 0);
|
|
}
|
|
else {
|
|
/* array set */
|
|
VALUE args;
|
|
|
|
args = rb_eval(self, lhs->nd_args);
|
|
rb_ary_push(args, val);
|
|
rb_call(CLASS_OF(recv), recv, lhs->nd_mid,
|
|
RARRAY(args)->len, RARRAY(args)->ptr, 0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
rb_bug("bug in variable assignment");
|
|
break;
|
|
}
|
|
}
|
|
|
|
VALUE
|
|
rb_iterate(it_proc, data1, bl_proc, data2)
|
|
VALUE (*it_proc) _((VALUE)), (*bl_proc)(ANYARGS);
|
|
VALUE data1, data2;
|
|
{
|
|
int state;
|
|
volatile VALUE retval = Qnil;
|
|
NODE *node = NEW_IFUNC(bl_proc, data2);
|
|
VALUE self = ruby_top_self;
|
|
|
|
iter_retry:
|
|
PUSH_ITER(ITER_PRE);
|
|
PUSH_BLOCK(0, node);
|
|
PUSH_TAG(PROT_NONE);
|
|
|
|
state = EXEC_TAG();
|
|
if (state == 0) {
|
|
retval = (*it_proc)(data1);
|
|
}
|
|
if (ruby_block->tag->dst == state) {
|
|
state &= TAG_MASK;
|
|
if (state == TAG_RETURN || state == TAG_BREAK) {
|
|
retval = prot_tag->retval;
|
|
}
|
|
}
|
|
POP_TAG();
|
|
POP_BLOCK();
|
|
POP_ITER();
|
|
|
|
switch (state) {
|
|
case 0:
|
|
break;
|
|
|
|
case TAG_RETRY:
|
|
goto iter_retry;
|
|
|
|
case TAG_BREAK:
|
|
break;
|
|
|
|
case TAG_RETURN:
|
|
return_value(retval);
|
|
/* fall through */
|
|
default:
|
|
JUMP_TAG(state);
|
|
}
|
|
return retval;
|
|
}
|
|
|
|
static int
|
|
handle_rescue(self, node)
|
|
VALUE self;
|
|
NODE *node;
|
|
{
|
|
int argc; VALUE *argv; /* used in SETUP_ARGS */
|
|
TMP_PROTECT;
|
|
|
|
if (!node->nd_args) {
|
|
return rb_obj_is_kind_of(ruby_errinfo, rb_eStandardError);
|
|
}
|
|
|
|
BEGIN_CALLARGS;
|
|
SETUP_ARGS(node->nd_args);
|
|
END_CALLARGS;
|
|
|
|
while (argc--) {
|
|
if (!rb_obj_is_kind_of(argv[0], rb_cModule)) {
|
|
rb_raise(rb_eTypeError, "class or module required for rescue clause");
|
|
}
|
|
if (RTEST(rb_funcall(*argv, eqq, 1, ruby_errinfo))) return 1;
|
|
argv++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
VALUE
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
rb_rescue2(VALUE (*b_proc)(ANYARGS), VALUE data1, VALUE (*r_proc)(ANYARGS), VALUE data2, ...)
|
|
#else
|
|
rb_rescue2(b_proc, data1, r_proc, data2, va_alist)
|
|
VALUE (*b_proc)(ANYARGS), (*r_proc)(ANYARGS);
|
|
VALUE data1, data2;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
int state;
|
|
volatile VALUE result;
|
|
volatile VALUE e_info = ruby_errinfo;
|
|
va_list args;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
retry_entry:
|
|
result = (*b_proc)(data1);
|
|
}
|
|
else if (state == TAG_RAISE) {
|
|
int handle = Qfalse;
|
|
VALUE eclass;
|
|
|
|
va_init_list(args, data2);
|
|
while (eclass = va_arg(args, VALUE)) {
|
|
if (rb_obj_is_kind_of(ruby_errinfo, eclass)) {
|
|
handle = Qtrue;
|
|
break;
|
|
}
|
|
}
|
|
va_end(args);
|
|
|
|
if (handle) {
|
|
if (r_proc) {
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = (*r_proc)(data2, ruby_errinfo);
|
|
}
|
|
POP_TAG();
|
|
if (state == TAG_RETRY) {
|
|
state = 0;
|
|
ruby_errinfo = Qnil;
|
|
goto retry_entry;
|
|
}
|
|
}
|
|
else {
|
|
result = Qnil;
|
|
state = 0;
|
|
}
|
|
if (state == 0) {
|
|
ruby_errinfo = e_info;
|
|
}
|
|
}
|
|
}
|
|
POP_TAG();
|
|
if (state) JUMP_TAG(state);
|
|
|
|
return result;
|
|
}
|
|
|
|
VALUE
|
|
rb_rescue(b_proc, data1, r_proc, data2)
|
|
VALUE (*b_proc)(), (*r_proc)();
|
|
VALUE data1, data2;
|
|
{
|
|
return rb_rescue2(b_proc, data1, r_proc, data2, rb_eStandardError, 0);
|
|
}
|
|
|
|
VALUE
|
|
rb_protect(proc, data, state)
|
|
VALUE (*proc) _((VALUE));
|
|
VALUE data;
|
|
int *state;
|
|
{
|
|
VALUE result; /* OK */
|
|
int status;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((status = EXEC_TAG()) == 0) {
|
|
result = (*proc)(data);
|
|
}
|
|
POP_TAG();
|
|
if (state) {
|
|
*state = status;
|
|
}
|
|
if (status != 0) {
|
|
return Qnil;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
VALUE
|
|
rb_ensure(b_proc, data1, e_proc, data2)
|
|
VALUE (*b_proc)();
|
|
VALUE data1;
|
|
VALUE (*e_proc)();
|
|
VALUE data2;
|
|
{
|
|
int state;
|
|
volatile VALUE result = Qnil;
|
|
VALUE retval;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = (*b_proc)(data1);
|
|
}
|
|
POP_TAG();
|
|
retval = prot_tag ? prot_tag->retval : Qnil; /* save retval */
|
|
(*e_proc)(data2);
|
|
if (prot_tag) return_value(retval);
|
|
|
|
if (state) JUMP_TAG(state);
|
|
return result;
|
|
}
|
|
|
|
VALUE
|
|
rb_with_disable_interrupt(proc, data)
|
|
VALUE (*proc)();
|
|
VALUE data;
|
|
{
|
|
VALUE result; /* OK */
|
|
int status;
|
|
|
|
DEFER_INTS;
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((status = EXEC_TAG()) == 0) {
|
|
result = (*proc)(data);
|
|
}
|
|
POP_TAG();
|
|
ALLOW_INTS;
|
|
if (status) JUMP_TAG(status);
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
stack_check()
|
|
{
|
|
static int overflowing = 0;
|
|
|
|
if (!overflowing && ruby_stack_check()) {
|
|
int state;
|
|
overflowing = 1;
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
rb_raise(rb_eSysStackError, "stack level too deep");
|
|
}
|
|
POP_TAG();
|
|
overflowing = 0;
|
|
JUMP_TAG(state);
|
|
}
|
|
}
|
|
|
|
static int last_call_status;
|
|
|
|
#define CSTAT_PRIV 1
|
|
#define CSTAT_PROT 2
|
|
#define CSTAT_VCALL 4
|
|
|
|
static VALUE
|
|
rb_f_missing(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
ID id;
|
|
VALUE exc = rb_eNoMethodError;
|
|
volatile VALUE d = 0;
|
|
char *format = 0;
|
|
char *desc = "";
|
|
char *file = ruby_sourcefile;
|
|
int line = ruby_sourceline;
|
|
|
|
if (argc == 0 || !SYMBOL_P(argv[0])) {
|
|
rb_raise(rb_eArgError, "no id given");
|
|
}
|
|
|
|
stack_check();
|
|
|
|
id = SYM2ID(argv[0]);
|
|
|
|
switch (TYPE(obj)) {
|
|
case T_NIL:
|
|
desc = "nil";
|
|
break;
|
|
case T_TRUE:
|
|
desc = "true";
|
|
break;
|
|
case T_FALSE:
|
|
desc = "false";
|
|
break;
|
|
case T_OBJECT:
|
|
d = rb_any_to_s(obj);
|
|
break;
|
|
default:
|
|
d = rb_inspect(obj);
|
|
break;
|
|
}
|
|
if (d) {
|
|
if (RSTRING(d)->len > 65) {
|
|
d = rb_any_to_s(obj);
|
|
}
|
|
desc = RSTRING(d)->ptr;
|
|
}
|
|
|
|
if (last_call_status & CSTAT_PRIV) {
|
|
format = "private method `%s' called for %s%s%s";
|
|
}
|
|
if (last_call_status & CSTAT_PROT) {
|
|
format = "protected method `%s' called for %s%s%s";
|
|
}
|
|
else if (last_call_status & CSTAT_VCALL) {
|
|
const char *mname = rb_id2name(id);
|
|
|
|
if (('a' <= mname[0] && mname[0] <= 'z') || mname[0] == '_') {
|
|
format = "undefined local variable or method `%s' for %s%s%s";
|
|
exc = rb_eNameError;
|
|
}
|
|
}
|
|
if (!format) {
|
|
format = "undefined method `%s' for %s%s%s";
|
|
}
|
|
|
|
ruby_sourcefile = file;
|
|
ruby_sourceline = line;
|
|
PUSH_FRAME(); /* fake frame */
|
|
*ruby_frame = *_frame.prev->prev;
|
|
{
|
|
char buf[BUFSIZ];
|
|
int noclass = (!d || desc[0]=='#');
|
|
|
|
snprintf(buf, BUFSIZ, format, rb_id2name(id),
|
|
desc, noclass ? "" : ":",
|
|
noclass ? "" : rb_class2name(CLASS_OF(obj)));
|
|
exc = rb_exc_new2(exc, buf);
|
|
rb_iv_set(exc, "name", argv[0]);
|
|
rb_iv_set(exc, "args", rb_ary_new4(argc-1, argv+1));
|
|
rb_exc_raise(exc);
|
|
}
|
|
POP_FRAME();
|
|
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
static VALUE
|
|
rb_undefined(obj, id, argc, argv, call_status)
|
|
VALUE obj;
|
|
ID id;
|
|
int argc;
|
|
VALUE*argv;
|
|
int call_status;
|
|
{
|
|
VALUE *nargv;
|
|
|
|
last_call_status = call_status;
|
|
|
|
if (id == missing) {
|
|
PUSH_FRAME();
|
|
rb_f_missing(argc, argv, obj);
|
|
POP_FRAME();
|
|
}
|
|
|
|
nargv = ALLOCA_N(VALUE, argc+1);
|
|
nargv[0] = ID2SYM(id);
|
|
MEMCPY(nargv+1, argv, VALUE, argc);
|
|
|
|
return rb_funcall2(obj, missing, argc+1, nargv);
|
|
}
|
|
|
|
static VALUE
|
|
call_cfunc(func, recv, len, argc, argv)
|
|
VALUE (*func)();
|
|
VALUE recv;
|
|
int len, argc;
|
|
VALUE *argv;
|
|
{
|
|
if (len >= 0 && argc != len) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments(%d for %d)",
|
|
argc, len);
|
|
}
|
|
|
|
switch (len) {
|
|
case -2:
|
|
return (*func)(recv, rb_ary_new4(argc, argv));
|
|
break;
|
|
case -1:
|
|
return (*func)(argc, argv, recv);
|
|
break;
|
|
case 0:
|
|
return (*func)(recv);
|
|
break;
|
|
case 1:
|
|
return (*func)(recv, argv[0]);
|
|
break;
|
|
case 2:
|
|
return (*func)(recv, argv[0], argv[1]);
|
|
break;
|
|
case 3:
|
|
return (*func)(recv, argv[0], argv[1], argv[2]);
|
|
break;
|
|
case 4:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3]);
|
|
break;
|
|
case 5:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4]);
|
|
break;
|
|
case 6:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5]);
|
|
break;
|
|
case 7:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6]);
|
|
break;
|
|
case 8:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7]);
|
|
break;
|
|
case 9:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8]);
|
|
break;
|
|
case 10:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8], argv[9]);
|
|
break;
|
|
case 11:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8], argv[9], argv[10]);
|
|
break;
|
|
case 12:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8], argv[9],
|
|
argv[10], argv[11]);
|
|
break;
|
|
case 13:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8], argv[9], argv[10],
|
|
argv[11], argv[12]);
|
|
break;
|
|
case 14:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8], argv[9], argv[10],
|
|
argv[11], argv[12], argv[13]);
|
|
break;
|
|
case 15:
|
|
return (*func)(recv, argv[0], argv[1], argv[2], argv[3], argv[4],
|
|
argv[5], argv[6], argv[7], argv[8], argv[9], argv[10],
|
|
argv[11], argv[12], argv[13], argv[14]);
|
|
break;
|
|
default:
|
|
rb_raise(rb_eArgError, "too many arguments(%d)", len);
|
|
break;
|
|
}
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
static VALUE
|
|
rb_call0(klass, recv, id, argc, argv, body, nosuper)
|
|
VALUE klass, recv;
|
|
ID id;
|
|
int argc; /* OK */
|
|
VALUE *argv; /* OK */
|
|
NODE *body; /* OK */
|
|
int nosuper;
|
|
{
|
|
NODE *b2; /* OK */
|
|
volatile VALUE result = Qnil;
|
|
int itr;
|
|
static int tick;
|
|
TMP_PROTECT;
|
|
|
|
switch (ruby_iter->iter) {
|
|
case ITER_PRE:
|
|
itr = ITER_CUR;
|
|
break;
|
|
case ITER_CUR:
|
|
default:
|
|
itr = ITER_NOT;
|
|
break;
|
|
}
|
|
|
|
if ((++tick & 0xff) == 0) {
|
|
CHECK_INTS; /* better than nothing */
|
|
stack_check();
|
|
}
|
|
PUSH_ITER(itr);
|
|
PUSH_FRAME();
|
|
|
|
ruby_frame->last_func = id;
|
|
ruby_frame->last_class = nosuper?0:klass;
|
|
ruby_frame->self = recv;
|
|
ruby_frame->argc = argc;
|
|
ruby_frame->argv = argv;
|
|
|
|
switch (nd_type(body)) {
|
|
case NODE_CFUNC:
|
|
{
|
|
int len = body->nd_argc;
|
|
|
|
if (len < -2) {
|
|
rb_bug("bad argc(%d) specified for `%s(%s)'",
|
|
len, rb_class2name(klass), rb_id2name(id));
|
|
}
|
|
if (trace_func) {
|
|
int state;
|
|
char *file = ruby_frame->prev->file;
|
|
int line = ruby_frame->prev->line;
|
|
if (!file) {
|
|
file = ruby_sourcefile;
|
|
line = ruby_sourceline;
|
|
}
|
|
|
|
call_trace_func("c-call", 0, 0, recv, id, klass);
|
|
PUSH_TAG(PROT_FUNC);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = call_cfunc(body->nd_cfnc, recv, len, argc, argv);
|
|
}
|
|
POP_TAG();
|
|
call_trace_func("c-return", 0, 0, recv, id, klass);
|
|
if (state) JUMP_TAG(state);
|
|
}
|
|
else {
|
|
result = call_cfunc(body->nd_cfnc, recv, len, argc, argv);
|
|
}
|
|
}
|
|
break;
|
|
|
|
/* for attr get/set */
|
|
case NODE_IVAR:
|
|
if (argc != 0) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments(%d for 0)", argc);
|
|
}
|
|
case NODE_ATTRSET:
|
|
/* for re-scoped/renamed method */
|
|
case NODE_ZSUPER:
|
|
result = rb_eval(recv, body);
|
|
break;
|
|
|
|
case NODE_DMETHOD:
|
|
result = method_call(argc, argv, umethod_bind(body->nd_cval, recv));
|
|
break;
|
|
|
|
case NODE_BMETHOD:
|
|
result = proc_invoke(body->nd_cval, rb_ary_new4(argc, argv), Qtrue, recv);
|
|
break;
|
|
|
|
case NODE_SCOPE:
|
|
{
|
|
int state;
|
|
VALUE *local_vars; /* OK */
|
|
NODE *saved_cref = 0;
|
|
|
|
PUSH_SCOPE();
|
|
|
|
if (body->nd_rval) {
|
|
saved_cref = ruby_cref;
|
|
ruby_cref = (NODE*)body->nd_rval;
|
|
ruby_frame->cbase = body->nd_rval;
|
|
}
|
|
if (body->nd_tbl) {
|
|
local_vars = TMP_ALLOC(body->nd_tbl[0]+1);
|
|
*local_vars++ = (VALUE)body;
|
|
rb_mem_clear(local_vars, body->nd_tbl[0]);
|
|
ruby_scope->local_tbl = body->nd_tbl;
|
|
ruby_scope->local_vars = local_vars;
|
|
}
|
|
else {
|
|
local_vars = ruby_scope->local_vars = 0;
|
|
ruby_scope->local_tbl = 0;
|
|
}
|
|
b2 = body = body->nd_next;
|
|
|
|
PUSH_VARS();
|
|
PUSH_TAG(PROT_FUNC);
|
|
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
NODE *node = 0;
|
|
int i;
|
|
|
|
if (nd_type(body) == NODE_ARGS) {
|
|
node = body;
|
|
body = 0;
|
|
}
|
|
else if (nd_type(body) == NODE_BLOCK) {
|
|
node = body->nd_head;
|
|
body = body->nd_next;
|
|
}
|
|
if (node) {
|
|
if (nd_type(node) != NODE_ARGS) {
|
|
rb_bug("no argument-node");
|
|
}
|
|
|
|
i = node->nd_cnt;
|
|
if (i > argc) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments(%d for %d)",
|
|
argc, i);
|
|
}
|
|
if (node->nd_rest == -1) {
|
|
int opt = i;
|
|
NODE *optnode = node->nd_opt;
|
|
|
|
while (optnode) {
|
|
opt++;
|
|
optnode = optnode->nd_next;
|
|
}
|
|
if (opt < argc) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments(%d for %d)",
|
|
argc, opt);
|
|
}
|
|
ruby_frame->argc = opt;
|
|
ruby_frame->argv = local_vars+2;
|
|
}
|
|
|
|
if (local_vars) {
|
|
if (i > 0) {
|
|
/* +2 for $_ and $~ */
|
|
MEMCPY(local_vars+2, argv, VALUE, i);
|
|
}
|
|
argv += i; argc -= i;
|
|
if (node->nd_opt) {
|
|
NODE *opt = node->nd_opt;
|
|
|
|
while (opt && argc) {
|
|
assign(recv, opt->nd_head, *argv, 1);
|
|
argv++; argc--;
|
|
opt = opt->nd_next;
|
|
}
|
|
if (opt) {
|
|
ruby_sourcefile = opt->nd_file;
|
|
ruby_sourceline = nd_line(opt);
|
|
rb_eval(recv, opt);
|
|
}
|
|
}
|
|
local_vars = ruby_scope->local_vars;
|
|
if (node->nd_rest >= 0) {
|
|
VALUE v;
|
|
|
|
if (argc > 0)
|
|
v = rb_ary_new4(argc,argv);
|
|
else
|
|
v = rb_ary_new2(0);
|
|
ruby_scope->local_vars[node->nd_rest] = v;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (trace_func) {
|
|
call_trace_func("call", b2->nd_file, nd_line(b2),
|
|
recv, id, klass);
|
|
}
|
|
result = rb_eval(recv, body);
|
|
}
|
|
else if (state == TAG_RETURN) {
|
|
result = prot_tag->retval;
|
|
state = 0;
|
|
}
|
|
POP_TAG();
|
|
POP_VARS();
|
|
POP_SCOPE();
|
|
ruby_cref = saved_cref;
|
|
if (trace_func) {
|
|
char *file = ruby_frame->prev->file;
|
|
int line = ruby_frame->prev->line;
|
|
if (!file) {
|
|
file = ruby_sourcefile;
|
|
line = ruby_sourceline;
|
|
}
|
|
call_trace_func("return", file, line, recv, id, klass);
|
|
}
|
|
switch (state) {
|
|
case 0:
|
|
break;
|
|
|
|
case TAG_RETRY:
|
|
if (rb_block_given_p()) {
|
|
JUMP_TAG(state);
|
|
}
|
|
/* fall through */
|
|
default:
|
|
jump_tag_but_local_jump(state);
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
rb_bug("unknown node type %d", nd_type(body));
|
|
break;
|
|
}
|
|
POP_FRAME();
|
|
POP_ITER();
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
rb_call(klass, recv, mid, argc, argv, scope)
|
|
VALUE klass, recv;
|
|
ID mid;
|
|
int argc; /* OK */
|
|
const VALUE *argv; /* OK */
|
|
int scope;
|
|
{
|
|
NODE *body; /* OK */
|
|
int noex;
|
|
ID id = mid;
|
|
struct cache_entry *ent;
|
|
|
|
if (!klass) {
|
|
rb_raise(rb_eNotImpError, "method `%s' called on terminated object (0x%x)",
|
|
rb_id2name(mid), recv);
|
|
}
|
|
/* is it in the method cache? */
|
|
ent = cache + EXPR1(klass, mid);
|
|
if (ent->mid == mid && ent->klass == klass) {
|
|
if (!ent->method)
|
|
return rb_undefined(recv, mid, argc, argv, scope==2?CSTAT_VCALL:0);
|
|
klass = ent->origin;
|
|
id = ent->mid0;
|
|
noex = ent->noex;
|
|
body = ent->method;
|
|
}
|
|
else if ((body = rb_get_method_body(&klass, &id, &noex)) == 0) {
|
|
if (scope == 3) {
|
|
rb_name_error(mid, "super: no superclass method `%s'",
|
|
rb_id2name(mid));
|
|
}
|
|
return rb_undefined(recv, mid, argc, argv, scope==2?CSTAT_VCALL:0);
|
|
}
|
|
|
|
if (mid != missing) {
|
|
/* receiver specified form for private method */
|
|
if ((noex & NOEX_PRIVATE) && scope == 0)
|
|
return rb_undefined(recv, mid, argc, argv, CSTAT_PRIV);
|
|
|
|
/* self must be kind of a specified form for private method */
|
|
if ((noex & NOEX_PROTECTED)) {
|
|
VALUE defined_class = klass;
|
|
|
|
if (TYPE(defined_class) == T_ICLASS) {
|
|
defined_class = RBASIC(defined_class)->klass;
|
|
}
|
|
if (!rb_obj_is_kind_of(ruby_frame->self, rb_class_real(defined_class)))
|
|
return rb_undefined(recv, mid, argc, argv, CSTAT_PROT);
|
|
}
|
|
}
|
|
|
|
return rb_call0(klass, recv, id, argc, argv, body, noex & NOEX_UNDEF);
|
|
}
|
|
|
|
VALUE
|
|
rb_apply(recv, mid, args)
|
|
VALUE recv;
|
|
ID mid;
|
|
VALUE args;
|
|
{
|
|
int argc;
|
|
VALUE *argv;
|
|
|
|
argc = RARRAY(args)->len;
|
|
argv = ALLOCA_N(VALUE, argc);
|
|
MEMCPY(argv, RARRAY(args)->ptr, VALUE, argc);
|
|
return rb_call(CLASS_OF(recv), recv, mid, argc, argv, 1);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_send(argc, argv, recv)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE recv;
|
|
{
|
|
VALUE vid;
|
|
|
|
if (argc == 0) rb_raise(rb_eArgError, "no method name given");
|
|
|
|
vid = *argv++; argc--;
|
|
PUSH_ITER(rb_block_given_p()?ITER_PRE:ITER_NOT);
|
|
vid = rb_call(CLASS_OF(recv), recv, rb_to_id(vid), argc, argv, 1);
|
|
POP_ITER();
|
|
|
|
return vid;
|
|
}
|
|
|
|
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
#include <stdarg.h>
|
|
#define va_init_list(a,b) va_start(a,b)
|
|
#else
|
|
#include <varargs.h>
|
|
#define va_init_list(a,b) va_start(a)
|
|
#endif
|
|
|
|
VALUE
|
|
#ifdef HAVE_STDARG_PROTOTYPES
|
|
rb_funcall(VALUE recv, ID mid, int n, ...)
|
|
#else
|
|
rb_funcall(recv, mid, n, va_alist)
|
|
VALUE recv;
|
|
ID mid;
|
|
int n;
|
|
va_dcl
|
|
#endif
|
|
{
|
|
va_list ar;
|
|
VALUE *argv;
|
|
|
|
if (n > 0) {
|
|
int i;
|
|
|
|
argv = ALLOCA_N(VALUE, n);
|
|
|
|
va_init_list(ar, n);
|
|
for (i=0;i<n;i++) {
|
|
argv[i] = va_arg(ar, VALUE);
|
|
}
|
|
va_end(ar);
|
|
}
|
|
else {
|
|
argv = 0;
|
|
}
|
|
|
|
return rb_call(CLASS_OF(recv), recv, mid, n, argv, 1);
|
|
}
|
|
|
|
VALUE
|
|
rb_funcall2(recv, mid, argc, argv)
|
|
VALUE recv;
|
|
ID mid;
|
|
int argc;
|
|
const VALUE *argv;
|
|
{
|
|
return rb_call(CLASS_OF(recv), recv, mid, argc, argv, 1);
|
|
}
|
|
|
|
VALUE
|
|
rb_funcall3(recv, mid, argc, argv)
|
|
VALUE recv;
|
|
ID mid;
|
|
int argc;
|
|
const VALUE *argv;
|
|
{
|
|
return rb_call(CLASS_OF(recv), recv, mid, argc, argv, 0);
|
|
}
|
|
|
|
VALUE
|
|
rb_call_super(argc, argv)
|
|
int argc;
|
|
const VALUE *argv;
|
|
{
|
|
VALUE result;
|
|
|
|
if (ruby_frame->last_class == 0) {
|
|
rb_name_error(ruby_frame->last_func, "superclass method `%s' must be enabled by rb_enable_super()",
|
|
rb_id2name(ruby_frame->last_func));
|
|
}
|
|
|
|
PUSH_ITER(ruby_iter->iter?ITER_PRE:ITER_NOT);
|
|
result = rb_call(RCLASS(ruby_frame->last_class)->super,
|
|
ruby_frame->self, ruby_frame->last_func,
|
|
argc, argv, 3);
|
|
POP_ITER();
|
|
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
backtrace(lev)
|
|
int lev;
|
|
{
|
|
struct FRAME *frame = ruby_frame;
|
|
char buf[BUFSIZ];
|
|
VALUE ary;
|
|
|
|
ary = rb_ary_new();
|
|
if (lev < 0) {
|
|
if (frame->last_func) {
|
|
snprintf(buf, BUFSIZ, "%s:%d:in `%s'",
|
|
ruby_sourcefile, ruby_sourceline,
|
|
rb_id2name(frame->last_func));
|
|
}
|
|
else if (ruby_sourceline == 0) {
|
|
snprintf(buf, BUFSIZ, "%s", ruby_sourcefile);
|
|
}
|
|
else {
|
|
snprintf(buf, BUFSIZ, "%s:%d", ruby_sourcefile, ruby_sourceline);
|
|
}
|
|
rb_ary_push(ary, rb_str_new2(buf));
|
|
}
|
|
else {
|
|
while (lev-- > 0) {
|
|
frame = frame->prev;
|
|
if (!frame) {
|
|
ary = Qnil;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
while (frame && frame->file) {
|
|
if (frame->prev && frame->prev->last_func) {
|
|
snprintf(buf, BUFSIZ, "%s:%d:in `%s'",
|
|
frame->file, frame->line,
|
|
rb_id2name(frame->prev->last_func));
|
|
}
|
|
else {
|
|
snprintf(buf, BUFSIZ, "%s:%d", frame->file, frame->line);
|
|
}
|
|
rb_ary_push(ary, rb_str_new2(buf));
|
|
frame = frame->prev;
|
|
}
|
|
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_caller(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE level;
|
|
int lev;
|
|
|
|
rb_scan_args(argc, argv, "01", &level);
|
|
|
|
if (NIL_P(level)) lev = 1;
|
|
else lev = NUM2INT(level);
|
|
if (lev < 0) rb_raise(rb_eArgError, "negative level(%d)", lev);
|
|
|
|
return backtrace(lev);
|
|
}
|
|
|
|
void
|
|
rb_backtrace()
|
|
{
|
|
int i;
|
|
VALUE ary;
|
|
|
|
ary = backtrace(-1);
|
|
for (i=0; i<RARRAY(ary)->len; i++) {
|
|
printf("\tfrom %s\n", RSTRING(RARRAY(ary)->ptr[i])->ptr);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
make_backtrace()
|
|
{
|
|
return backtrace(-1);
|
|
}
|
|
|
|
ID
|
|
rb_frame_last_func()
|
|
{
|
|
return ruby_frame->last_func;
|
|
}
|
|
|
|
static NODE*
|
|
compile(src, file, line)
|
|
VALUE src;
|
|
char *file;
|
|
int line;
|
|
{
|
|
NODE *node;
|
|
|
|
ruby_nerrs = 0;
|
|
Check_Type(src, T_STRING);
|
|
node = rb_compile_string(file, src, line);
|
|
|
|
if (ruby_nerrs == 0) return node;
|
|
return 0;
|
|
}
|
|
|
|
static VALUE
|
|
eval(self, src, scope, file, line)
|
|
VALUE self, src, scope;
|
|
char *file;
|
|
int line;
|
|
{
|
|
struct BLOCK *data = NULL;
|
|
volatile VALUE result = Qnil;
|
|
struct SCOPE * volatile old_scope;
|
|
struct BLOCK * volatile old_block;
|
|
struct RVarmap * volatile old_dyna_vars;
|
|
VALUE volatile old_cref;
|
|
int volatile old_vmode;
|
|
volatile VALUE old_wrapper;
|
|
struct FRAME frame;
|
|
char *filesave = ruby_sourcefile;
|
|
int linesave = ruby_sourceline;
|
|
volatile int iter = ruby_frame->iter;
|
|
int state;
|
|
|
|
if (!NIL_P(scope)) {
|
|
if (!rb_obj_is_block(scope)) {
|
|
rb_raise(rb_eTypeError, "wrong argument type %s (expected Proc/Binding)",
|
|
rb_class2name(CLASS_OF(scope)));
|
|
}
|
|
|
|
Data_Get_Struct(scope, struct BLOCK, data);
|
|
/* PUSH BLOCK from data */
|
|
frame = data->frame;
|
|
frame.tmp = ruby_frame; /* gc protection */
|
|
ruby_frame = &(frame);
|
|
old_scope = ruby_scope;
|
|
ruby_scope = data->scope;
|
|
old_block = ruby_block;
|
|
ruby_block = data->prev;
|
|
old_dyna_vars = ruby_dyna_vars;
|
|
ruby_dyna_vars = data->dyna_vars;
|
|
old_vmode = scope_vmode;
|
|
scope_vmode = data->vmode;
|
|
old_cref = (VALUE)ruby_cref;
|
|
ruby_cref = (NODE*)ruby_frame->cbase;
|
|
old_wrapper = ruby_wrapper;
|
|
ruby_wrapper = data->wrapper;
|
|
if ((file == 0 || (line == 1 && strcmp(file, "(eval)") == 0)) &&
|
|
data->body && data->body->nd_file) {
|
|
file = data->body->nd_file;
|
|
line = nd_line(data->body);
|
|
}
|
|
|
|
self = data->self;
|
|
ruby_frame->iter = data->iter;
|
|
}
|
|
else {
|
|
if (ruby_frame->prev) {
|
|
ruby_frame->iter = ruby_frame->prev->iter;
|
|
}
|
|
}
|
|
if (file == 0) {
|
|
file = ruby_sourcefile;
|
|
line = ruby_sourceline;
|
|
}
|
|
PUSH_CLASS();
|
|
ruby_class = ruby_cbase;
|
|
|
|
ruby_in_eval++;
|
|
if (TYPE(ruby_class) == T_ICLASS) {
|
|
ruby_class = RBASIC(ruby_class)->klass;
|
|
}
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
NODE *node;
|
|
|
|
result = ruby_errinfo;
|
|
ruby_errinfo = Qnil;
|
|
node = compile(src, file, line);
|
|
if (ruby_nerrs > 0) {
|
|
compile_error(0);
|
|
}
|
|
if (!NIL_P(result)) ruby_errinfo = result;
|
|
result = eval_node(self, node);
|
|
}
|
|
POP_TAG();
|
|
POP_CLASS();
|
|
ruby_in_eval--;
|
|
if (!NIL_P(scope)) {
|
|
int dont_recycle = ruby_scope->flags & SCOPE_DONT_RECYCLE;
|
|
|
|
ruby_wrapper = old_wrapper;
|
|
ruby_cref = (NODE*)old_cref;
|
|
ruby_frame = frame.tmp;
|
|
ruby_scope = old_scope;
|
|
ruby_block = old_block;
|
|
ruby_dyna_vars = old_dyna_vars;
|
|
data->vmode = scope_vmode; /* write back visibility mode */
|
|
scope_vmode = old_vmode;
|
|
if (dont_recycle) {
|
|
struct tag *tag;
|
|
struct RVarmap *vars;
|
|
|
|
scope_dup(ruby_scope);
|
|
for (tag=prot_tag; tag; tag=tag->prev) {
|
|
scope_dup(tag->scope);
|
|
}
|
|
if (ruby_block) {
|
|
struct BLOCK *block = ruby_block;
|
|
while (block) {
|
|
block->tag->flags |= BLOCK_DYNAMIC;
|
|
block = block->prev;
|
|
}
|
|
}
|
|
for (vars = ruby_dyna_vars; vars; vars = vars->next) {
|
|
FL_SET(vars, DVAR_DONT_RECYCLE);
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
ruby_frame->iter = iter;
|
|
}
|
|
ruby_sourcefile = filesave;
|
|
ruby_sourceline = linesave;
|
|
if (state) {
|
|
if (state == TAG_RAISE) {
|
|
VALUE err;
|
|
VALUE errat;
|
|
|
|
if (strcmp(file, "(eval)") == 0) {
|
|
if (ruby_sourceline > 1) {
|
|
errat = get_backtrace(ruby_errinfo);
|
|
err = rb_str_dup(RARRAY(errat)->ptr[0]);
|
|
rb_str_cat2(err, ": ");
|
|
rb_str_append(err, ruby_errinfo);
|
|
}
|
|
else {
|
|
err = rb_str_dup(ruby_errinfo);
|
|
}
|
|
rb_exc_raise(rb_funcall(ruby_errinfo, rb_intern("exception"), 1, err));
|
|
}
|
|
rb_exc_raise(ruby_errinfo);
|
|
}
|
|
JUMP_TAG(state);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_eval(argc, argv, self)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE self;
|
|
{
|
|
VALUE src, scope, vfile, vline;
|
|
char *file = "(eval)";
|
|
int line = 1;
|
|
|
|
rb_scan_args(argc, argv, "13", &src, &scope, &vfile, &vline);
|
|
if (ruby_safe_level >= 4) {
|
|
StringValue(src);
|
|
if (!NIL_P(scope) && !OBJ_TAINTED(scope)) {
|
|
rb_raise(rb_eSecurityError, "Insecure: can't modify trusted binding");
|
|
}
|
|
}
|
|
else {
|
|
SafeStringValue(src);
|
|
}
|
|
if (argc >= 3) {
|
|
file = StringValuePtr(vfile);
|
|
}
|
|
if (argc >= 4) {
|
|
line = NUM2INT(vline);
|
|
}
|
|
|
|
if (NIL_P(scope) && ruby_frame->prev) {
|
|
struct FRAME *prev;
|
|
VALUE val;
|
|
|
|
prev = ruby_frame;
|
|
PUSH_FRAME();
|
|
*ruby_frame = *prev->prev;
|
|
ruby_frame->prev = prev;
|
|
val = eval(self, src, scope, file, line);
|
|
POP_FRAME();
|
|
|
|
return val;
|
|
}
|
|
return eval(self, src, scope, file, line);
|
|
}
|
|
|
|
/* function to call func under the specified class/module context */
|
|
static VALUE
|
|
exec_under(func, under, cbase, args)
|
|
VALUE (*func)();
|
|
VALUE under, cbase;
|
|
void *args;
|
|
{
|
|
VALUE val; /* OK */
|
|
int state;
|
|
int mode;
|
|
|
|
PUSH_CLASS();
|
|
ruby_class = under;
|
|
PUSH_FRAME();
|
|
ruby_frame->self = _frame.prev->self;
|
|
ruby_frame->last_func = _frame.prev->last_func;
|
|
ruby_frame->last_class = _frame.prev->last_class;
|
|
ruby_frame->argc = _frame.prev->argc;
|
|
ruby_frame->argv = _frame.prev->argv;
|
|
if (cbase) {
|
|
if (ruby_cbase != cbase) {
|
|
ruby_frame->cbase = (VALUE)rb_node_newnode(NODE_CREF,under,0,ruby_frame->cbase);
|
|
}
|
|
PUSH_CREF(cbase);
|
|
}
|
|
|
|
mode = scope_vmode;
|
|
SCOPE_SET(SCOPE_PUBLIC);
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = (*func)(args);
|
|
}
|
|
POP_TAG();
|
|
if (cbase) POP_CREF();
|
|
SCOPE_SET(mode);
|
|
POP_FRAME();
|
|
POP_CLASS();
|
|
if (state) JUMP_TAG(state);
|
|
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
eval_under_i(args)
|
|
VALUE *args;
|
|
{
|
|
return eval(args[0], args[1], Qnil, (char*)args[2], (int)args[3]);
|
|
}
|
|
|
|
/* string eval under the class/module context */
|
|
static VALUE
|
|
eval_under(under, self, src, file, line)
|
|
VALUE under, self, src;
|
|
const char *file;
|
|
int line;
|
|
{
|
|
VALUE args[4];
|
|
|
|
if (ruby_safe_level >= 4) {
|
|
StringValue(src);
|
|
}
|
|
else {
|
|
SafeStringValue(src);
|
|
}
|
|
args[0] = self;
|
|
args[1] = src;
|
|
args[2] = (VALUE)file;
|
|
args[3] = (VALUE)line;
|
|
return exec_under(eval_under_i, under, under, args);
|
|
}
|
|
|
|
static VALUE
|
|
yield_under_i(self)
|
|
VALUE self;
|
|
{
|
|
return rb_yield_0(self, self, ruby_class, 0);
|
|
}
|
|
|
|
/* block eval under the class/module context */
|
|
static VALUE
|
|
yield_under(under, self)
|
|
VALUE under, self;
|
|
{
|
|
return exec_under(yield_under_i, under, 0, self);
|
|
}
|
|
|
|
static VALUE
|
|
specific_eval(argc, argv, klass, self)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE klass, self;
|
|
{
|
|
if (rb_block_given_p()) {
|
|
if (argc > 0) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments (%d for 0)", argc);
|
|
}
|
|
return yield_under(klass, self);
|
|
}
|
|
else {
|
|
char *file = "(eval)";
|
|
int line = 1;
|
|
|
|
if (argc == 0) {
|
|
rb_raise(rb_eArgError, "block not supplied");
|
|
}
|
|
else {
|
|
if (ruby_safe_level >= 4) {
|
|
StringValue(argv[0]);
|
|
}
|
|
else {
|
|
SafeStringValue(argv[0]);
|
|
}
|
|
if (argc > 3) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments: %s(src) or %s{..}",
|
|
rb_id2name(ruby_frame->last_func),
|
|
rb_id2name(ruby_frame->last_func));
|
|
}
|
|
if (argc > 1) {
|
|
file = StringValuePtr(argv[1]);
|
|
}
|
|
if (argc > 2) line = NUM2INT(argv[2]);
|
|
}
|
|
return eval_under(klass, self, argv[0], file, line);
|
|
}
|
|
}
|
|
|
|
VALUE
|
|
rb_obj_instance_eval(argc, argv, self)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE self;
|
|
{
|
|
VALUE klass;
|
|
|
|
if (rb_special_const_p(self)) {
|
|
klass = Qnil;
|
|
}
|
|
else {
|
|
klass = rb_singleton_class(self);
|
|
}
|
|
|
|
return specific_eval(argc, argv, klass, self);
|
|
}
|
|
|
|
VALUE
|
|
rb_mod_module_eval(argc, argv, mod)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE mod;
|
|
{
|
|
return specific_eval(argc, argv, mod, mod);
|
|
}
|
|
|
|
VALUE rb_load_path;
|
|
|
|
void
|
|
rb_load(fname, wrap)
|
|
VALUE fname;
|
|
int wrap;
|
|
{
|
|
VALUE tmp;
|
|
int state;
|
|
volatile ID last_func;
|
|
volatile VALUE wrapper = 0;
|
|
volatile VALUE self = ruby_top_self;
|
|
NODE *saved_cref = ruby_cref;
|
|
TMP_PROTECT;
|
|
|
|
if (wrap && ruby_safe_level >= 4) {
|
|
StringValue(fname);
|
|
}
|
|
else {
|
|
SafeStringValue(fname);
|
|
}
|
|
tmp = rb_find_file(fname);
|
|
if (!tmp) {
|
|
rb_raise(rb_eLoadError, "No such file to load -- %s", RSTRING(fname)->ptr);
|
|
}
|
|
fname = tmp;
|
|
|
|
ruby_errinfo = Qnil; /* ensure */
|
|
PUSH_VARS();
|
|
PUSH_CLASS();
|
|
wrapper = ruby_wrapper;
|
|
ruby_cref = top_cref;
|
|
if (!wrap) {
|
|
rb_secure(4); /* should alter global state */
|
|
ruby_class = rb_cObject;
|
|
ruby_wrapper = 0;
|
|
}
|
|
else {
|
|
/* load in anonymous module as toplevel */
|
|
ruby_class = ruby_wrapper = rb_module_new();
|
|
self = rb_obj_clone(ruby_top_self);
|
|
rb_extend_object(self, ruby_class);
|
|
PUSH_CREF(ruby_wrapper);
|
|
}
|
|
PUSH_FRAME();
|
|
ruby_frame->last_func = 0;
|
|
ruby_frame->last_class = 0;
|
|
ruby_frame->self = self;
|
|
ruby_frame->cbase = (VALUE)rb_node_newnode(NODE_CREF,ruby_class,0,0);
|
|
PUSH_SCOPE();
|
|
/* default visibility is private at loading toplevel */
|
|
SCOPE_SET(SCOPE_PRIVATE);
|
|
PUSH_TAG(PROT_NONE);
|
|
state = EXEC_TAG();
|
|
last_func = ruby_frame->last_func;
|
|
if (state == 0) {
|
|
NODE *node;
|
|
|
|
DEFER_INTS;
|
|
ruby_in_eval++;
|
|
rb_load_file(RSTRING(fname)->ptr);
|
|
ruby_in_eval--;
|
|
node = ruby_eval_tree;
|
|
ALLOW_INTS;
|
|
if (ruby_nerrs == 0) {
|
|
eval_node(self, node);
|
|
}
|
|
}
|
|
ruby_frame->last_func = last_func;
|
|
if (ruby_scope->flags == SCOPE_ALLOCA && ruby_class == rb_cObject) {
|
|
if (ruby_scope->local_tbl) /* toplevel was empty */
|
|
free(ruby_scope->local_tbl);
|
|
}
|
|
POP_TAG();
|
|
ruby_cref = saved_cref;
|
|
POP_SCOPE();
|
|
POP_FRAME();
|
|
POP_CLASS();
|
|
POP_VARS();
|
|
ruby_wrapper = wrapper;
|
|
if (ruby_nerrs > 0) {
|
|
ruby_nerrs = 0;
|
|
rb_exc_raise(ruby_errinfo);
|
|
}
|
|
if (state) jump_tag_but_local_jump(state);
|
|
if (!NIL_P(ruby_errinfo)) /* exception during load */
|
|
rb_exc_raise(ruby_errinfo);
|
|
}
|
|
|
|
void
|
|
rb_load_protect(fname, wrap, state)
|
|
VALUE fname;
|
|
int wrap;
|
|
int *state;
|
|
{
|
|
int status;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((status = EXEC_TAG()) == 0) {
|
|
rb_load(fname, wrap);
|
|
}
|
|
POP_TAG();
|
|
if (state) *state = status;
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_load(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE fname, wrap;
|
|
|
|
rb_scan_args(argc, argv, "11", &fname, &wrap);
|
|
rb_load(fname, RTEST(wrap));
|
|
return Qtrue;
|
|
}
|
|
|
|
VALUE ruby_dln_librefs;
|
|
static VALUE rb_features;
|
|
static st_table *loading_tbl;
|
|
|
|
static int
|
|
rb_feature_p(feature, wait)
|
|
const char *feature;
|
|
int wait;
|
|
{
|
|
VALUE v;
|
|
char *f;
|
|
int i, len = strlen(feature);
|
|
|
|
for (i = 0; i < RARRAY(rb_features)->len; ++i) {
|
|
v = RARRAY(rb_features)->ptr[i];
|
|
f = StringValuePtr(v);
|
|
if (strcmp(f, feature) == 0) {
|
|
goto load_wait;
|
|
}
|
|
if (strncmp(f, feature, len) == 0) {
|
|
if (strcmp(f+len, ".so") == 0) {
|
|
return Qtrue;
|
|
}
|
|
if (strcmp(f+len, ".rb") == 0) {
|
|
if (wait) goto load_wait;
|
|
return Qtrue;
|
|
}
|
|
}
|
|
}
|
|
return Qfalse;
|
|
|
|
load_wait:
|
|
if (loading_tbl) {
|
|
char *ext = strrchr(f, '.');
|
|
if (ext && strcmp(ext, ".rb") == 0) {
|
|
rb_thread_t th;
|
|
|
|
while (st_lookup(loading_tbl, f, &th)) {
|
|
if (th == curr_thread) {
|
|
return Qtrue;
|
|
}
|
|
CHECK_INTS;
|
|
rb_thread_schedule();
|
|
}
|
|
}
|
|
}
|
|
return Qtrue;
|
|
}
|
|
|
|
static const char *const loadable_ext[] = {
|
|
".rb", DLEXT,
|
|
#ifdef DLEXT2
|
|
DLEXT2,
|
|
#endif
|
|
0
|
|
};
|
|
|
|
int
|
|
rb_provided(feature)
|
|
const char *feature;
|
|
{
|
|
VALUE f = rb_str_new2(feature);
|
|
|
|
if (strrchr(feature, '.') == 0) {
|
|
if (rb_find_file_ext(&f, loadable_ext) == 0) {
|
|
return rb_feature_p(feature, Qfalse);
|
|
}
|
|
}
|
|
return rb_feature_p(RSTRING(f)->ptr, Qfalse);
|
|
}
|
|
|
|
static void
|
|
rb_provide_feature(feature)
|
|
VALUE feature;
|
|
{
|
|
rb_ary_push(rb_features, feature);
|
|
}
|
|
|
|
void
|
|
rb_provide(feature)
|
|
const char *feature;
|
|
{
|
|
rb_provide_feature(rb_str_new2(feature));
|
|
}
|
|
|
|
VALUE
|
|
rb_f_require(obj, fname)
|
|
VALUE obj, fname;
|
|
{
|
|
VALUE feature, tmp;
|
|
char *ext, *ftptr; /* OK */
|
|
int state;
|
|
volatile int safe = ruby_safe_level;
|
|
|
|
SafeStringValue(fname);
|
|
ext = strrchr(RSTRING(fname)->ptr, '.');
|
|
if (ext) {
|
|
if (strcmp(".rb", ext) == 0) {
|
|
feature = rb_str_dup(fname);
|
|
tmp = rb_find_file(fname);
|
|
if (tmp) {
|
|
fname = tmp;
|
|
goto load_rb;
|
|
}
|
|
}
|
|
else if (strcmp(".so", ext) == 0 || strcmp(".o", ext) == 0) {
|
|
fname = rb_str_new(RSTRING(fname)->ptr, ext-RSTRING(fname)->ptr);
|
|
#ifdef DLEXT2
|
|
tmp = fname;
|
|
if (rb_find_file_ext(&tmp, loadable_ext+1)) {
|
|
feature = tmp;
|
|
fname = rb_find_file(tmp);
|
|
goto load_dyna;
|
|
}
|
|
#else
|
|
feature = tmp = rb_str_dup(fname);
|
|
rb_str_cat2(tmp, DLEXT);
|
|
tmp = rb_find_file(tmp);
|
|
if (tmp) {
|
|
fname = tmp;
|
|
goto load_dyna;
|
|
}
|
|
#endif
|
|
}
|
|
else if (strcmp(DLEXT, ext) == 0) {
|
|
tmp = rb_find_file(fname);
|
|
if (tmp) {
|
|
feature = fname;
|
|
fname = tmp;
|
|
goto load_dyna;
|
|
}
|
|
}
|
|
#ifdef DLEXT2
|
|
else if (strcmp(DLEXT2, ext) == 0) {
|
|
tmp = rb_find_file(fname);
|
|
if (tmp) {
|
|
feature = fname;
|
|
fname = tmp;
|
|
goto load_dyna;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
tmp = fname;
|
|
switch (rb_find_file_ext(&tmp, loadable_ext)) {
|
|
case 0:
|
|
break;
|
|
|
|
case 1:
|
|
feature = fname = tmp;
|
|
goto load_rb;
|
|
|
|
default:
|
|
feature = tmp;
|
|
fname = rb_find_file(tmp);
|
|
goto load_dyna;
|
|
}
|
|
if (rb_feature_p(RSTRING(fname)->ptr, Qfalse))
|
|
return Qfalse;
|
|
rb_raise(rb_eLoadError, "No such file to load -- %s", RSTRING(fname)->ptr);
|
|
|
|
load_dyna:
|
|
if (rb_feature_p(RSTRING(feature)->ptr, Qfalse))
|
|
return Qfalse;
|
|
rb_provide_feature(feature);
|
|
{
|
|
int volatile old_vmode = scope_vmode;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
void *handle;
|
|
|
|
SCOPE_SET(SCOPE_PUBLIC);
|
|
handle = dln_load(RSTRING(fname)->ptr);
|
|
rb_ary_push(ruby_dln_librefs, INT2NUM((long)handle));
|
|
}
|
|
POP_TAG();
|
|
SCOPE_SET(old_vmode);
|
|
}
|
|
if (state) JUMP_TAG(state);
|
|
|
|
return Qtrue;
|
|
|
|
load_rb:
|
|
if (rb_feature_p(RSTRING(feature)->ptr, Qtrue))
|
|
return Qfalse;
|
|
ruby_safe_level = 0;
|
|
rb_provide_feature(feature);
|
|
/* loading ruby library should be serialized. */
|
|
if (!loading_tbl) {
|
|
loading_tbl = st_init_strtable();
|
|
}
|
|
/* partial state */
|
|
ftptr = ruby_strdup(RSTRING(feature)->ptr);
|
|
st_insert(loading_tbl, ftptr, curr_thread);
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
rb_load(fname, 0);
|
|
}
|
|
POP_TAG();
|
|
st_delete(loading_tbl, &ftptr, 0); /* loading done */
|
|
free(ftptr);
|
|
ruby_safe_level = safe;
|
|
if (state) JUMP_TAG(state);
|
|
|
|
return Qtrue;
|
|
}
|
|
|
|
VALUE
|
|
rb_require(fname)
|
|
const char *fname;
|
|
{
|
|
return rb_f_require(Qnil, rb_str_new2(fname));
|
|
}
|
|
|
|
static void
|
|
secure_visibility(self)
|
|
VALUE self;
|
|
{
|
|
if (ruby_safe_level >= 4 && !OBJ_TAINTED(self)) {
|
|
rb_raise(rb_eSecurityError, "Insecure: can't change method visibility");
|
|
}
|
|
}
|
|
|
|
static void
|
|
set_method_visibility(self, argc, argv, ex)
|
|
VALUE self;
|
|
int argc;
|
|
VALUE *argv;
|
|
ID ex;
|
|
{
|
|
int i;
|
|
|
|
secure_visibility(self);
|
|
for (i=0; i<argc; i++) {
|
|
rb_export_method(self, rb_to_id(argv[i]), ex);
|
|
}
|
|
rb_clear_cache_by_class(self);
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_public(argc, argv, module)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE module;
|
|
{
|
|
secure_visibility(module);
|
|
if (argc == 0) {
|
|
SCOPE_SET(SCOPE_PUBLIC);
|
|
}
|
|
else {
|
|
set_method_visibility(module, argc, argv, NOEX_PUBLIC);
|
|
}
|
|
return module;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_protected(argc, argv, module)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE module;
|
|
{
|
|
secure_visibility(module);
|
|
if (argc == 0) {
|
|
SCOPE_SET(SCOPE_PROTECTED);
|
|
}
|
|
else {
|
|
set_method_visibility(module, argc, argv, NOEX_PROTECTED);
|
|
}
|
|
return module;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_private(argc, argv, module)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE module;
|
|
{
|
|
secure_visibility(module);
|
|
if (argc == 0) {
|
|
SCOPE_SET(SCOPE_PRIVATE);
|
|
}
|
|
else {
|
|
set_method_visibility(module, argc, argv, NOEX_PRIVATE);
|
|
}
|
|
return module;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_public_method(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
set_method_visibility(CLASS_OF(obj), argc, argv, NOEX_PUBLIC);
|
|
return obj;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_private_method(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
set_method_visibility(CLASS_OF(obj), argc, argv, NOEX_PRIVATE);
|
|
return obj;
|
|
}
|
|
|
|
static VALUE
|
|
top_public(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
return rb_mod_public(argc, argv, rb_cObject);
|
|
}
|
|
|
|
static VALUE
|
|
top_private(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
return rb_mod_private(argc, argv, rb_cObject);
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_modfunc(argc, argv, module)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE module;
|
|
{
|
|
int i;
|
|
ID id;
|
|
NODE *body;
|
|
|
|
if (TYPE(module) != T_MODULE) {
|
|
rb_raise(rb_eTypeError, "module_function must be called for modules");
|
|
}
|
|
|
|
secure_visibility(module);
|
|
if (argc == 0) {
|
|
SCOPE_SET(SCOPE_MODFUNC);
|
|
return module;
|
|
}
|
|
|
|
set_method_visibility(module, argc, argv, NOEX_PRIVATE);
|
|
for (i=0; i<argc; i++) {
|
|
VALUE m = module;
|
|
|
|
id = rb_to_id(argv[i]);
|
|
for (;;) {
|
|
body = search_method(m, id, &m);
|
|
if (body == 0 || body->nd_body == 0) {
|
|
rb_bug("undefined method `%s'; can't happen", rb_id2name(id));
|
|
}
|
|
if (nd_type(body->nd_body) != NODE_ZSUPER) {
|
|
break; /* normal case: need not to follow 'super' link */
|
|
}
|
|
m = RCLASS(m)->super;
|
|
}
|
|
rb_add_method(rb_singleton_class(module), id, body->nd_body, NOEX_PUBLIC);
|
|
rb_funcall(module, singleton_added, 1, ID2SYM(id));
|
|
}
|
|
return module;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_append_features(module, include)
|
|
VALUE module, include;
|
|
{
|
|
switch (TYPE(include)) {
|
|
case T_CLASS:
|
|
case T_MODULE:
|
|
break;
|
|
default:
|
|
Check_Type(include, T_CLASS);
|
|
break;
|
|
}
|
|
rb_include_module(include, module);
|
|
|
|
return module;
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_include(argc, argv, module)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE module;
|
|
{
|
|
while (argc--) {
|
|
VALUE m = argv[argc];
|
|
|
|
Check_Type(m, T_MODULE);
|
|
rb_funcall(m, rb_intern("append_features"), 1, module);
|
|
rb_funcall(m, rb_intern("included"), 1, module);
|
|
}
|
|
return module;
|
|
}
|
|
|
|
void
|
|
rb_obj_call_init(obj, argc, argv)
|
|
VALUE obj;
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
PUSH_ITER(rb_block_given_p()?ITER_PRE:ITER_NOT);
|
|
rb_funcall2(obj, init, argc, argv);
|
|
POP_ITER();
|
|
}
|
|
|
|
static VALUE
|
|
top_include(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
rb_secure(4);
|
|
return rb_mod_include(argc, argv, rb_cObject);
|
|
}
|
|
|
|
void
|
|
rb_extend_object(obj, module)
|
|
VALUE obj, module;
|
|
{
|
|
rb_include_module(rb_singleton_class(obj), module);
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_extend_object(mod, obj)
|
|
VALUE mod, obj;
|
|
{
|
|
rb_extend_object(obj, mod);
|
|
return obj;
|
|
}
|
|
|
|
static VALUE
|
|
rb_obj_extend(argc, argv, obj)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE obj;
|
|
{
|
|
int i;
|
|
|
|
if (argc == 0) {
|
|
rb_raise(rb_eArgError, "wrong number of arguments(0 for 1)");
|
|
}
|
|
for (i=0; i<argc; i++) Check_Type(argv[i], T_MODULE);
|
|
while (argc--) {
|
|
rb_funcall(argv[argc], rb_intern("extend_object"), 1, obj);
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
VALUE rb_f_trace_var();
|
|
VALUE rb_f_untrace_var();
|
|
|
|
static void
|
|
errinfo_setter(val, id, var)
|
|
VALUE val;
|
|
ID id;
|
|
VALUE *var;
|
|
{
|
|
if (!NIL_P(val) && !rb_obj_is_kind_of(val, rb_eException)) {
|
|
rb_raise(rb_eTypeError, "assigning non-exception to $!");
|
|
}
|
|
*var = val;
|
|
}
|
|
|
|
static VALUE
|
|
errat_getter(id)
|
|
ID id;
|
|
{
|
|
return get_backtrace(ruby_errinfo);
|
|
}
|
|
|
|
static void
|
|
errat_setter(val, id, var)
|
|
VALUE val;
|
|
ID id;
|
|
VALUE *var;
|
|
{
|
|
if (NIL_P(ruby_errinfo)) {
|
|
rb_raise(rb_eArgError, "$! not set");
|
|
}
|
|
set_backtrace(ruby_errinfo, val);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_local_variables()
|
|
{
|
|
ID *tbl;
|
|
int n, i;
|
|
VALUE ary = rb_ary_new();
|
|
struct RVarmap *vars;
|
|
|
|
tbl = ruby_scope->local_tbl;
|
|
if (tbl) {
|
|
n = *tbl++;
|
|
for (i=2; i<n; i++) { /* skip first 2 ($_ and $~) */
|
|
if (!rb_is_local_id(tbl[i])) continue; /* skip flip states */
|
|
rb_ary_push(ary, rb_str_new2(rb_id2name(tbl[i])));
|
|
}
|
|
}
|
|
|
|
vars = ruby_dyna_vars;
|
|
while (vars) {
|
|
if (vars->id) {
|
|
rb_ary_push(ary, rb_str_new2(rb_id2name(vars->id)));
|
|
}
|
|
vars = vars->next;
|
|
}
|
|
|
|
return ary;
|
|
}
|
|
|
|
static VALUE rb_f_catch _((VALUE,VALUE));
|
|
NORETURN(static VALUE rb_f_throw _((int,VALUE*)));
|
|
|
|
struct end_proc_data {
|
|
void (*func)();
|
|
VALUE data;
|
|
struct end_proc_data *next;
|
|
};
|
|
|
|
static struct end_proc_data *end_procs, *ephemeral_end_procs;
|
|
|
|
void
|
|
rb_set_end_proc(func, data)
|
|
void (*func) _((VALUE));
|
|
VALUE data;
|
|
{
|
|
struct end_proc_data *link = ALLOC(struct end_proc_data);
|
|
struct end_proc_data **list;
|
|
|
|
if (ruby_wrapper) list = &ephemeral_end_procs;
|
|
else list = &end_procs;
|
|
link->next = *list;
|
|
link->func = func;
|
|
link->data = data;
|
|
*list = link;
|
|
}
|
|
|
|
void
|
|
rb_mark_end_proc()
|
|
{
|
|
struct end_proc_data *link;
|
|
|
|
link = end_procs;
|
|
while (link) {
|
|
rb_gc_mark(link->data);
|
|
link = link->next;
|
|
}
|
|
link = ephemeral_end_procs;
|
|
while (link) {
|
|
rb_gc_mark(link->data);
|
|
link = link->next;
|
|
}
|
|
}
|
|
|
|
static void call_end_proc _((VALUE data));
|
|
|
|
static void
|
|
call_end_proc(data)
|
|
VALUE data;
|
|
{
|
|
PUSH_ITER(ITER_NOT);
|
|
PUSH_FRAME();
|
|
ruby_frame->self = ruby_frame->prev->self;
|
|
ruby_frame->last_func = 0;
|
|
ruby_frame->last_class = 0;
|
|
proc_invoke(data, rb_ary_new2(0), Qfalse, Qundef);
|
|
POP_FRAME();
|
|
POP_ITER();
|
|
}
|
|
|
|
static void
|
|
rb_f_END()
|
|
{
|
|
PUSH_FRAME();
|
|
ruby_frame->argc = 0;
|
|
rb_set_end_proc(call_end_proc, rb_f_lambda());
|
|
POP_FRAME();
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_at_exit()
|
|
{
|
|
VALUE proc;
|
|
|
|
proc = rb_f_lambda();
|
|
|
|
rb_set_end_proc(call_end_proc, proc);
|
|
return proc;
|
|
}
|
|
|
|
void
|
|
rb_exec_end_proc()
|
|
{
|
|
struct end_proc_data *link, *save;
|
|
int status;
|
|
|
|
save = link = end_procs;
|
|
while (link) {
|
|
rb_protect((VALUE(*)_((VALUE)))link->func, link->data, &status);
|
|
if (status) {
|
|
error_handle(status);
|
|
}
|
|
link = link->next;
|
|
}
|
|
link = end_procs;
|
|
while (link != save) {
|
|
rb_protect((VALUE(*)_((VALUE)))link->func, link->data, &status);
|
|
if (status) {
|
|
error_handle(status);
|
|
}
|
|
link = link->next;
|
|
}
|
|
while (ephemeral_end_procs) {
|
|
link = ephemeral_end_procs;
|
|
ephemeral_end_procs = link->next;
|
|
rb_protect((VALUE(*)_((VALUE)))link->func, link->data, &status);
|
|
if (status) {
|
|
error_handle(status);
|
|
}
|
|
free(link);
|
|
}
|
|
}
|
|
|
|
void
|
|
Init_eval()
|
|
{
|
|
init = rb_intern("initialize");
|
|
alloc = rb_intern("allocate");
|
|
eqq = rb_intern("===");
|
|
each = rb_intern("each");
|
|
|
|
aref = rb_intern("[]");
|
|
aset = rb_intern("[]=");
|
|
match = rb_intern("=~");
|
|
missing = rb_intern("method_missing");
|
|
added = rb_intern("method_added");
|
|
singleton_added = rb_intern("singleton_method_added");
|
|
removed = rb_intern("method_removed");
|
|
singleton_removed = rb_intern("singleton_method_removed");
|
|
undefined = rb_intern("method_undefined");
|
|
singleton_undefined = rb_intern("singleton_method_undefined");
|
|
|
|
__id__ = rb_intern("__id__");
|
|
__send__ = rb_intern("__send__");
|
|
|
|
rb_global_variable((VALUE*)&top_scope);
|
|
rb_global_variable((VALUE*)&ruby_eval_tree_begin);
|
|
|
|
rb_global_variable((VALUE*)&ruby_eval_tree);
|
|
rb_global_variable((VALUE*)&ruby_dyna_vars);
|
|
|
|
rb_define_virtual_variable("$@", errat_getter, errat_setter);
|
|
rb_define_hooked_variable("$!", &ruby_errinfo, 0, errinfo_setter);
|
|
|
|
rb_define_global_function("eval", rb_f_eval, -1);
|
|
rb_define_global_function("iterator?", rb_f_block_given_p, 0);
|
|
rb_define_global_function("block_given?", rb_f_block_given_p, 0);
|
|
rb_define_global_function("method_missing", rb_f_missing, -1);
|
|
rb_define_global_function("loop", rb_f_loop, 0);
|
|
|
|
rb_define_method(rb_mKernel, "respond_to?", rb_obj_respond_to, -1);
|
|
|
|
rb_define_global_function("raise", rb_f_raise, -1);
|
|
rb_define_global_function("fail", rb_f_raise, -1);
|
|
|
|
rb_define_global_function("caller", rb_f_caller, -1);
|
|
|
|
rb_define_global_function("exit", rb_f_exit, -1);
|
|
rb_define_global_function("abort", rb_f_abort, -1);
|
|
|
|
rb_define_global_function("at_exit", rb_f_at_exit, 0);
|
|
|
|
rb_define_global_function("catch", rb_f_catch, 1);
|
|
rb_define_global_function("throw", rb_f_throw, -1);
|
|
rb_define_global_function("global_variables", rb_f_global_variables, 0);
|
|
rb_define_global_function("local_variables", rb_f_local_variables, 0);
|
|
|
|
rb_define_method(rb_mKernel, "send", rb_f_send, -1);
|
|
rb_define_method(rb_mKernel, "__send__", rb_f_send, -1);
|
|
rb_define_method(rb_mKernel, "instance_eval", rb_obj_instance_eval, -1);
|
|
|
|
rb_define_private_method(rb_cModule, "append_features", rb_mod_append_features, 1);
|
|
rb_define_private_method(rb_cModule, "extend_object", rb_mod_extend_object, 1);
|
|
rb_define_private_method(rb_cModule, "include", rb_mod_include, -1);
|
|
rb_define_private_method(rb_cModule, "public", rb_mod_public, -1);
|
|
rb_define_private_method(rb_cModule, "protected", rb_mod_protected, -1);
|
|
rb_define_private_method(rb_cModule, "private", rb_mod_private, -1);
|
|
rb_define_private_method(rb_cModule, "module_function", rb_mod_modfunc, -1);
|
|
rb_define_method(rb_cModule, "method_defined?", rb_mod_method_defined, 1);
|
|
rb_define_method(rb_cModule, "public_class_method", rb_mod_public_method, -1);
|
|
rb_define_method(rb_cModule, "private_class_method", rb_mod_private_method, -1);
|
|
rb_define_method(rb_cModule, "module_eval", rb_mod_module_eval, -1);
|
|
rb_define_method(rb_cModule, "class_eval", rb_mod_module_eval, -1);
|
|
|
|
rb_undef_method(rb_cClass, "module_function");
|
|
|
|
rb_define_private_method(rb_cModule, "remove_method", rb_mod_remove_method, 1);
|
|
rb_define_private_method(rb_cModule, "undef_method", rb_mod_undef_method, 1);
|
|
rb_define_private_method(rb_cModule, "alias_method", rb_mod_alias_method, 2);
|
|
rb_define_private_method(rb_cModule, "define_method", rb_mod_define_method, -1);
|
|
|
|
rb_define_singleton_method(rb_cModule, "nesting", rb_mod_nesting, 0);
|
|
rb_define_singleton_method(rb_cModule, "constants", rb_mod_s_constants, 0);
|
|
|
|
rb_define_singleton_method(ruby_top_self, "include", top_include, -1);
|
|
rb_define_singleton_method(ruby_top_self, "public", top_public, -1);
|
|
rb_define_singleton_method(ruby_top_self, "private", top_private, -1);
|
|
|
|
rb_define_method(rb_mKernel, "extend", rb_obj_extend, -1);
|
|
|
|
rb_define_global_function("trace_var", rb_f_trace_var, -1);
|
|
rb_define_global_function("untrace_var", rb_f_untrace_var, -1);
|
|
|
|
rb_define_global_function("set_trace_func", set_trace_func, 1);
|
|
rb_global_variable(&trace_func);
|
|
|
|
rb_define_virtual_variable("$SAFE", safe_getter, safe_setter);
|
|
}
|
|
|
|
VALUE rb_f_autoload();
|
|
|
|
void
|
|
Init_load()
|
|
{
|
|
rb_load_path = rb_ary_new();
|
|
rb_define_readonly_variable("$:", &rb_load_path);
|
|
rb_define_readonly_variable("$-I", &rb_load_path);
|
|
rb_define_readonly_variable("$LOAD_PATH", &rb_load_path);
|
|
|
|
rb_features = rb_ary_new();
|
|
rb_define_readonly_variable("$\"", &rb_features);
|
|
|
|
rb_define_global_function("load", rb_f_load, -1);
|
|
rb_define_global_function("require", rb_f_require, 1);
|
|
rb_define_global_function("autoload", rb_f_autoload, 2);
|
|
rb_global_variable(&ruby_wrapper);
|
|
|
|
ruby_dln_librefs = rb_ary_new();
|
|
rb_global_variable(&ruby_dln_librefs);
|
|
}
|
|
|
|
static void
|
|
scope_dup(scope)
|
|
struct SCOPE *scope;
|
|
{
|
|
ID *tbl;
|
|
VALUE *vars;
|
|
|
|
scope->flags |= SCOPE_DONT_RECYCLE;
|
|
if (scope->flags & SCOPE_MALLOC) return;
|
|
|
|
if (scope->local_tbl) {
|
|
tbl = scope->local_tbl;
|
|
vars = ALLOC_N(VALUE, tbl[0]+1);
|
|
*vars++ = scope->local_vars[-1];
|
|
MEMCPY(vars, scope->local_vars, VALUE, tbl[0]);
|
|
scope->local_vars = vars;
|
|
scope->flags |= SCOPE_MALLOC;
|
|
}
|
|
}
|
|
|
|
static void
|
|
blk_mark(data)
|
|
struct BLOCK *data;
|
|
{
|
|
while (data) {
|
|
rb_gc_mark_frame(&data->frame);
|
|
rb_gc_mark((VALUE)data->scope);
|
|
rb_gc_mark((VALUE)data->var);
|
|
rb_gc_mark((VALUE)data->body);
|
|
rb_gc_mark((VALUE)data->self);
|
|
rb_gc_mark((VALUE)data->dyna_vars);
|
|
rb_gc_mark((VALUE)data->klass);
|
|
rb_gc_mark((VALUE)data->tag);
|
|
rb_gc_mark(data->wrapper);
|
|
data = data->prev;
|
|
}
|
|
}
|
|
|
|
static void
|
|
blk_free(data)
|
|
struct BLOCK *data;
|
|
{
|
|
struct FRAME *frame;
|
|
void *tmp;
|
|
|
|
frame = data->frame.prev;
|
|
while (frame) {
|
|
if (frame->argc > 0 && (frame->flags & FRAME_MALLOC))
|
|
free(frame->argv);
|
|
tmp = frame;
|
|
frame = frame->prev;
|
|
free(tmp);
|
|
}
|
|
while (data) {
|
|
if (data->frame.argc > 0)
|
|
free(data->frame.argv);
|
|
tmp = data;
|
|
data = data->prev;
|
|
free(tmp);
|
|
}
|
|
}
|
|
|
|
static void
|
|
blk_copy_prev(block)
|
|
struct BLOCK *block;
|
|
{
|
|
struct BLOCK *tmp;
|
|
struct RVarmap* vars;
|
|
|
|
while (block->prev) {
|
|
tmp = ALLOC_N(struct BLOCK, 1);
|
|
MEMCPY(tmp, block->prev, struct BLOCK, 1);
|
|
if (tmp->frame.argc > 0) {
|
|
tmp->frame.argv = ALLOC_N(VALUE, tmp->frame.argc);
|
|
MEMCPY(tmp->frame.argv, block->prev->frame.argv, VALUE, tmp->frame.argc);
|
|
tmp->frame.flags |= FRAME_MALLOC;
|
|
}
|
|
scope_dup(tmp->scope);
|
|
tmp->tag->flags |= BLOCK_DYNAMIC;
|
|
|
|
for (vars = tmp->dyna_vars; vars; vars = vars->next) {
|
|
if (FL_TEST(vars, DVAR_DONT_RECYCLE)) break;
|
|
FL_SET(vars, DVAR_DONT_RECYCLE);
|
|
}
|
|
|
|
block->prev = tmp;
|
|
block = tmp;
|
|
}
|
|
}
|
|
|
|
static void
|
|
frame_dup(frame)
|
|
struct FRAME *frame;
|
|
{
|
|
VALUE *argv;
|
|
struct FRAME *tmp;
|
|
|
|
for (;;) {
|
|
if (frame->argc > 0) {
|
|
argv = ALLOC_N(VALUE, frame->argc);
|
|
MEMCPY(argv, frame->argv, VALUE, frame->argc);
|
|
frame->argv = argv;
|
|
frame->flags |= FRAME_MALLOC;
|
|
}
|
|
frame->tmp = 0; /* should not preserve tmp */
|
|
if (!frame->prev) break;
|
|
tmp = ALLOC(struct FRAME);
|
|
*tmp = *frame->prev;
|
|
frame->prev = tmp;
|
|
frame = tmp;
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
bind_clone(self)
|
|
VALUE self;
|
|
{
|
|
struct BLOCK *orig, *data;
|
|
VALUE bind;
|
|
|
|
Data_Get_Struct(self, struct BLOCK, orig);
|
|
bind = Data_Make_Struct(rb_cBinding,struct BLOCK,blk_mark,blk_free,data);
|
|
CLONESETUP(bind, self);
|
|
MEMCPY(data, orig, struct BLOCK, 1);
|
|
frame_dup(&data->frame);
|
|
|
|
if (data->iter) {
|
|
blk_copy_prev(data);
|
|
}
|
|
else {
|
|
data->prev = 0;
|
|
}
|
|
|
|
return bind;
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_binding(self)
|
|
VALUE self;
|
|
{
|
|
struct BLOCK *data, *p;
|
|
struct RVarmap *vars;
|
|
VALUE bind;
|
|
|
|
PUSH_BLOCK(0,0);
|
|
bind = Data_Make_Struct(rb_cBinding,struct BLOCK,blk_mark,blk_free,data);
|
|
*data = *ruby_block;
|
|
|
|
data->orig_thread = rb_thread_current();
|
|
data->wrapper = ruby_wrapper;
|
|
data->iter = rb_f_block_given_p();
|
|
frame_dup(&data->frame);
|
|
if (ruby_frame->prev) {
|
|
data->frame.last_func = ruby_frame->prev->last_func;
|
|
data->frame.last_class = ruby_frame->prev->last_class;
|
|
}
|
|
|
|
if (data->iter) {
|
|
blk_copy_prev(data);
|
|
}
|
|
else {
|
|
data->prev = 0;
|
|
}
|
|
data->flags |= BLOCK_DYNAMIC;
|
|
data->tag->flags |= BLOCK_DYNAMIC;
|
|
|
|
for (p = data; p; p = p->prev) {
|
|
for (vars = p->dyna_vars; vars; vars = vars->next) {
|
|
if (FL_TEST(vars, DVAR_DONT_RECYCLE)) break;
|
|
FL_SET(vars, DVAR_DONT_RECYCLE);
|
|
}
|
|
}
|
|
scope_dup(data->scope);
|
|
POP_BLOCK();
|
|
|
|
return bind;
|
|
}
|
|
|
|
#define PROC_T3 FL_USER1
|
|
#define PROC_T4 FL_USER2
|
|
#define PROC_TMAX (FL_USER1|FL_USER2)
|
|
#define PROC_TMASK (FL_USER1|FL_USER2)
|
|
|
|
static void
|
|
proc_save_safe_level(data)
|
|
VALUE data;
|
|
{
|
|
if (OBJ_TAINTED(data)) {
|
|
switch (ruby_safe_level) {
|
|
case 3:
|
|
FL_SET(data, PROC_T3);
|
|
break;
|
|
case 4:
|
|
FL_SET(data, PROC_T4);
|
|
break;
|
|
default:
|
|
if (ruby_safe_level > 4) {
|
|
FL_SET(data, PROC_TMAX);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
proc_get_safe_level(data)
|
|
VALUE data;
|
|
{
|
|
if (OBJ_TAINTED(data)) {
|
|
switch (RBASIC(data)->flags & PROC_TMASK) {
|
|
case PROC_T3:
|
|
return 3;
|
|
case PROC_T4:
|
|
return 4;
|
|
case PROC_TMAX:
|
|
return 5;
|
|
}
|
|
return 3;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
proc_set_safe_level(data)
|
|
VALUE data;
|
|
{
|
|
if (OBJ_TAINTED(data)) {
|
|
ruby_safe_level = proc_get_safe_level(data);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
proc_new(klass)
|
|
VALUE klass;
|
|
{
|
|
volatile VALUE proc;
|
|
struct BLOCK *data, *p;
|
|
struct RVarmap *vars;
|
|
|
|
if (!rb_block_given_p() && !rb_f_block_given_p()) {
|
|
rb_raise(rb_eArgError, "tried to create Proc object without a block");
|
|
}
|
|
|
|
proc = Data_Make_Struct(klass, struct BLOCK, blk_mark, blk_free, data);
|
|
*data = *ruby_block;
|
|
|
|
data->orig_thread = rb_thread_current();
|
|
data->wrapper = ruby_wrapper;
|
|
data->iter = data->prev?Qtrue:Qfalse;
|
|
frame_dup(&data->frame);
|
|
if (data->iter) {
|
|
blk_copy_prev(data);
|
|
}
|
|
else {
|
|
data->prev = 0;
|
|
}
|
|
data->flags |= BLOCK_DYNAMIC;
|
|
data->tag->flags |= BLOCK_DYNAMIC;
|
|
|
|
for (p = data; p; p = p->prev) {
|
|
for (vars = p->dyna_vars; vars; vars = vars->next) {
|
|
if (FL_TEST(vars, DVAR_DONT_RECYCLE)) break;
|
|
FL_SET(vars, DVAR_DONT_RECYCLE);
|
|
}
|
|
}
|
|
scope_dup(data->scope);
|
|
proc_save_safe_level(proc);
|
|
|
|
return proc;
|
|
}
|
|
|
|
static VALUE
|
|
proc_s_new(argc, argv, klass)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE klass;
|
|
{
|
|
VALUE proc = proc_new(klass);
|
|
|
|
rb_obj_call_init(proc, argc, argv);
|
|
return proc;
|
|
}
|
|
|
|
VALUE
|
|
rb_f_lambda()
|
|
{
|
|
return proc_new(rb_cProc);
|
|
}
|
|
|
|
static int
|
|
blk_orphan(data)
|
|
struct BLOCK *data;
|
|
{
|
|
if (!(data->scope->flags & SCOPE_NOSTACK)) {
|
|
return 0;
|
|
}
|
|
if ((data->tag->flags & BLOCK_ORPHAN)) {
|
|
return 1;
|
|
}
|
|
if (data->orig_thread != rb_thread_current()) {
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static VALUE
|
|
proc_invoke(proc, args, pcall, self)
|
|
VALUE proc, args; /* OK */
|
|
int pcall;
|
|
VALUE self;
|
|
{
|
|
struct BLOCK * volatile old_block;
|
|
struct BLOCK _block;
|
|
struct BLOCK *data;
|
|
volatile VALUE result = Qnil;
|
|
int state;
|
|
volatile int orphan;
|
|
volatile int safe = ruby_safe_level;
|
|
volatile VALUE old_wrapper = ruby_wrapper;
|
|
struct RVarmap * volatile old_dvars = ruby_dyna_vars;
|
|
|
|
if (rb_block_given_p() && ruby_frame->last_func) {
|
|
rb_warning("block for %s#%s is useless",
|
|
rb_class2name(CLASS_OF(proc)),
|
|
rb_id2name(ruby_frame->last_func));
|
|
}
|
|
|
|
Data_Get_Struct(proc, struct BLOCK, data);
|
|
orphan = blk_orphan(data);
|
|
|
|
ruby_wrapper = data->wrapper;
|
|
ruby_dyna_vars = data->dyna_vars;
|
|
/* PUSH BLOCK from data */
|
|
old_block = ruby_block;
|
|
_block = *data;
|
|
ruby_block = &_block;
|
|
|
|
PUSH_ITER(ITER_CUR);
|
|
ruby_frame->iter = ITER_CUR;
|
|
|
|
if (!pcall) {
|
|
args = avalue_to_yvalue(args);
|
|
}
|
|
PUSH_TAG(PROT_NONE);
|
|
state = EXEC_TAG();
|
|
if (state == 0) {
|
|
proc_set_safe_level(proc);
|
|
result = rb_yield_0(args, self, self!=Qundef?CLASS_OF(self):0, pcall);
|
|
}
|
|
POP_TAG();
|
|
|
|
POP_ITER();
|
|
if (ruby_block->tag->dst == state) {
|
|
state &= TAG_MASK;
|
|
}
|
|
ruby_block = old_block;
|
|
ruby_wrapper = old_wrapper;
|
|
ruby_dyna_vars = old_dvars;
|
|
ruby_safe_level = safe;
|
|
|
|
switch (state) {
|
|
case 0:
|
|
break;
|
|
case TAG_BREAK:
|
|
if (!pcall && orphan) {
|
|
localjump_error("break from proc-closure", prot_tag->retval);
|
|
}
|
|
result = prot_tag->retval;
|
|
break;
|
|
case TAG_RETRY:
|
|
localjump_error("retry from proc-closure", Qnil);
|
|
break;
|
|
case TAG_RETURN:
|
|
if (orphan) { /* orphan procedure */
|
|
localjump_error("return from proc-closure", prot_tag->retval);
|
|
}
|
|
/* fall through */
|
|
default:
|
|
JUMP_TAG(state);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
proc_call(proc, args)
|
|
VALUE proc, args; /* OK */
|
|
{
|
|
return proc_invoke(proc, args, Qtrue, Qundef);
|
|
}
|
|
|
|
static VALUE
|
|
proc_yield(proc, args)
|
|
VALUE proc, args; /* OK */
|
|
{
|
|
return proc_invoke(proc, args, Qfalse, Qundef);
|
|
}
|
|
|
|
static VALUE
|
|
proc_arity(proc)
|
|
VALUE proc;
|
|
{
|
|
struct BLOCK *data;
|
|
NODE *list;
|
|
int n;
|
|
|
|
Data_Get_Struct(proc, struct BLOCK, data);
|
|
if (data->var == 0) return INT2FIX(-1);
|
|
if (data->var == (NODE*)1) return INT2FIX(0);
|
|
if (data->var == (NODE*)2) return INT2FIX(0);
|
|
switch (nd_type(data->var)) {
|
|
default:
|
|
return INT2FIX(-1);
|
|
case NODE_MASGN:
|
|
list = data->var->nd_head;
|
|
n = 0;
|
|
while (list) {
|
|
n++;
|
|
list = list->nd_next;
|
|
}
|
|
if (data->var->nd_args) return INT2FIX(-n-1);
|
|
return INT2FIX(n);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
proc_eq(self, other)
|
|
VALUE self, other;
|
|
{
|
|
struct BLOCK *data, *data2;
|
|
|
|
if (self == other) return Qtrue;
|
|
if (TYPE(other) != T_DATA) return Qfalse;
|
|
if (RDATA(other)->dmark != (RUBY_DATA_FUNC)blk_mark) return Qfalse;
|
|
if (CLASS_OF(self) != CLASS_OF(other)) return Qfalse;
|
|
Data_Get_Struct(self, struct BLOCK, data);
|
|
Data_Get_Struct(other, struct BLOCK, data2);
|
|
if (data->tag == data2->tag) return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
proc_to_s(self, other)
|
|
VALUE self, other;
|
|
{
|
|
struct BLOCK *data;
|
|
char *cname = rb_class2name(CLASS_OF(self));
|
|
VALUE str;
|
|
|
|
Data_Get_Struct(self, struct BLOCK, data);
|
|
str = rb_str_new(0, strlen(cname)+6+16+1); /* 6:tags 16:addr 1:nul */
|
|
sprintf(RSTRING(str)->ptr, "#<%s:0x%p>", cname, data->tag);
|
|
RSTRING(str)->len = strlen(RSTRING(str)->ptr);
|
|
if (OBJ_TAINTED(self)) OBJ_TAINT(str);
|
|
|
|
return str;
|
|
}
|
|
|
|
static VALUE
|
|
proc_to_proc(proc)
|
|
VALUE proc;
|
|
{
|
|
return proc;
|
|
}
|
|
|
|
static VALUE
|
|
proc_binding(proc)
|
|
VALUE proc;
|
|
{
|
|
struct BLOCK *orig, *data;
|
|
VALUE bind;
|
|
|
|
Data_Get_Struct(proc, struct BLOCK, orig);
|
|
bind = Data_Make_Struct(rb_cBinding,struct BLOCK,blk_mark,blk_free,data);
|
|
MEMCPY(data, orig, struct BLOCK, 1);
|
|
frame_dup(&data->frame);
|
|
|
|
if (data->iter) {
|
|
blk_copy_prev(data);
|
|
}
|
|
else {
|
|
data->prev = 0;
|
|
}
|
|
|
|
return bind;
|
|
}
|
|
|
|
static VALUE
|
|
block_pass(self, node)
|
|
VALUE self;
|
|
NODE *node;
|
|
{
|
|
VALUE block = rb_eval(self, node->nd_body); /* OK */
|
|
VALUE b;
|
|
struct BLOCK * volatile old_block;
|
|
struct BLOCK _block;
|
|
struct BLOCK *data;
|
|
volatile VALUE result = Qnil;
|
|
int state;
|
|
volatile int orphan;
|
|
volatile int safe = ruby_safe_level;
|
|
|
|
if (NIL_P(block)) {
|
|
PUSH_ITER(ITER_NOT);
|
|
result = rb_eval(self, node->nd_iter);
|
|
POP_ITER();
|
|
return result;
|
|
}
|
|
if (!rb_obj_is_proc(block)) {
|
|
b = rb_check_convert_type(block, T_DATA, "Proc", "to_proc");
|
|
if (!rb_obj_is_proc(b)) {
|
|
rb_raise(rb_eTypeError, "wrong argument type %s (expected Proc)",
|
|
rb_class2name(CLASS_OF(block)));
|
|
}
|
|
block = b;
|
|
}
|
|
|
|
if (ruby_safe_level >= 1 && OBJ_TAINTED(block)) {
|
|
if (ruby_safe_level > proc_get_safe_level(block)) {
|
|
rb_raise(rb_eSecurityError, "Insecure: tainted block value");
|
|
}
|
|
}
|
|
|
|
Data_Get_Struct(block, struct BLOCK, data);
|
|
orphan = blk_orphan(data);
|
|
|
|
retry:
|
|
/* PUSH BLOCK from data */
|
|
old_block = ruby_block;
|
|
_block = *data;
|
|
ruby_block = &_block;
|
|
PUSH_ITER(ITER_PRE);
|
|
ruby_frame->iter = ITER_PRE;
|
|
|
|
PUSH_TAG(PROT_NONE);
|
|
state = EXEC_TAG();
|
|
if (state == 0) {
|
|
proc_set_safe_level(block);
|
|
if (safe > ruby_safe_level)
|
|
ruby_safe_level = safe;
|
|
result = rb_eval(self, node->nd_iter);
|
|
}
|
|
POP_TAG();
|
|
POP_ITER();
|
|
if (_block.tag->dst == state) {
|
|
if (orphan) {
|
|
state &= TAG_MASK;
|
|
}
|
|
else {
|
|
struct BLOCK *ptr = old_block;
|
|
|
|
while (ptr) {
|
|
if (ptr->scope == _block.scope) {
|
|
ptr->tag->dst = state;
|
|
break;
|
|
}
|
|
ptr = ptr->prev;
|
|
}
|
|
if (!ptr) {
|
|
state &= TAG_MASK;
|
|
}
|
|
}
|
|
}
|
|
ruby_block = old_block;
|
|
ruby_safe_level = safe;
|
|
|
|
switch (state) {/* escape from orphan procedure */
|
|
case 0:
|
|
break;
|
|
case TAG_BREAK:
|
|
result = prot_tag->retval;
|
|
break;
|
|
case TAG_RETRY:
|
|
goto retry;
|
|
case TAG_RETURN:
|
|
if (orphan) {
|
|
localjump_error("return from proc-closure", prot_tag->retval);
|
|
}
|
|
default:
|
|
JUMP_TAG(state);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
struct METHOD {
|
|
VALUE klass, rklass;
|
|
VALUE recv;
|
|
ID id, oid;
|
|
NODE *body;
|
|
};
|
|
|
|
static void
|
|
bm_mark(data)
|
|
struct METHOD *data;
|
|
{
|
|
rb_gc_mark(data->rklass);
|
|
rb_gc_mark(data->klass);
|
|
rb_gc_mark(data->recv);
|
|
rb_gc_mark((VALUE)data->body);
|
|
}
|
|
|
|
static VALUE
|
|
mnew(klass, obj, id, mklass)
|
|
VALUE klass, obj, mklass;
|
|
ID id;
|
|
{
|
|
VALUE method;
|
|
NODE *body;
|
|
int noex;
|
|
struct METHOD *data;
|
|
VALUE rklass = klass;
|
|
ID oid = id;
|
|
|
|
again:
|
|
if ((body = rb_get_method_body(&klass, &id, &noex)) == 0) {
|
|
print_undef(rklass, oid);
|
|
}
|
|
|
|
if (nd_type(body) == NODE_ZSUPER) {
|
|
klass = RCLASS(klass)->super;
|
|
goto again;
|
|
}
|
|
|
|
method = Data_Make_Struct(mklass, struct METHOD, bm_mark, free, data);
|
|
data->klass = klass;
|
|
data->recv = obj;
|
|
data->id = id;
|
|
data->body = body;
|
|
data->rklass = rklass;
|
|
data->oid = oid;
|
|
OBJ_INFECT(method, klass);
|
|
|
|
return method;
|
|
}
|
|
|
|
static VALUE
|
|
method_eq(method, other)
|
|
VALUE method, other;
|
|
{
|
|
struct METHOD *m1, *m2;
|
|
|
|
if (TYPE(other) != T_DATA || RDATA(other)->dmark != (RUBY_DATA_FUNC)bm_mark)
|
|
return Qfalse;
|
|
if (CLASS_OF(method) != CLASS_OF(other))
|
|
return Qfalse;
|
|
|
|
Data_Get_Struct(method, struct METHOD, m1);
|
|
Data_Get_Struct(other, struct METHOD, m2);
|
|
|
|
if (m1->klass != m2->klass || m1->rklass != m2->rklass ||
|
|
m1->recv != m2->recv || m1->body != m2->body)
|
|
return Qfalse;
|
|
|
|
return Qtrue;
|
|
}
|
|
|
|
static VALUE
|
|
method_unbind(obj)
|
|
VALUE obj;
|
|
{
|
|
VALUE method;
|
|
struct METHOD *orig, *data;
|
|
|
|
Data_Get_Struct(obj, struct METHOD, orig);
|
|
method = Data_Make_Struct(rb_cUnboundMethod, struct METHOD, bm_mark, free, data);
|
|
data->klass = orig->klass;
|
|
data->recv = Qundef;
|
|
data->id = orig->id;
|
|
data->body = orig->body;
|
|
data->rklass = orig->rklass;
|
|
data->oid = orig->oid;
|
|
OBJ_INFECT(method, obj);
|
|
|
|
return method;
|
|
}
|
|
|
|
static VALUE
|
|
umethod_unbind(obj)
|
|
VALUE obj;
|
|
{
|
|
return obj;
|
|
}
|
|
|
|
static VALUE
|
|
rb_obj_method(obj, vid)
|
|
VALUE obj;
|
|
VALUE vid;
|
|
{
|
|
return mnew(CLASS_OF(obj), obj, rb_to_id(vid), rb_cMethod);
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_method(mod, vid)
|
|
VALUE mod;
|
|
VALUE vid;
|
|
{
|
|
return mnew(mod, Qundef, rb_to_id(vid), rb_cUnboundMethod);
|
|
}
|
|
|
|
static VALUE
|
|
method_clone(self)
|
|
VALUE self;
|
|
{
|
|
VALUE clone;
|
|
struct METHOD *orig, *data;
|
|
|
|
Data_Get_Struct(self, struct METHOD, orig);
|
|
clone = Data_Make_Struct(CLASS_OF(self),struct METHOD, bm_mark, free, data);
|
|
CLONESETUP(clone, self);
|
|
*data = *orig;
|
|
|
|
return clone;
|
|
}
|
|
|
|
static VALUE
|
|
method_call(argc, argv, method)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE method;
|
|
{
|
|
VALUE result;
|
|
struct METHOD *data;
|
|
int state;
|
|
volatile int safe = ruby_safe_level;
|
|
|
|
Data_Get_Struct(method, struct METHOD, data);
|
|
PUSH_ITER(rb_block_given_p()?ITER_PRE:ITER_NOT);
|
|
PUSH_TAG(PROT_NONE);
|
|
if (OBJ_TAINTED(method) && ruby_safe_level < 4) {
|
|
ruby_safe_level = 4;
|
|
}
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
result = rb_call0(data->klass,data->recv,data->id,argc,argv,data->body,0);
|
|
}
|
|
POP_TAG();
|
|
POP_ITER();
|
|
ruby_safe_level = safe;
|
|
if (state) JUMP_TAG(state);
|
|
return result;
|
|
}
|
|
|
|
static VALUE
|
|
umethod_call(argc, argv, method)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE method;
|
|
{
|
|
rb_raise(rb_eTypeError, "you cannot call unbound method; bind first");
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
static VALUE
|
|
umethod_bind(method, recv)
|
|
VALUE method, recv;
|
|
{
|
|
struct METHOD *data, *bound;
|
|
|
|
Data_Get_Struct(method, struct METHOD, data);
|
|
if (data->rklass != CLASS_OF(recv)) {
|
|
if (FL_TEST(data->rklass, FL_SINGLETON)) {
|
|
rb_raise(rb_eTypeError, "singleton method called for a different object");
|
|
}
|
|
if (FL_TEST(CLASS_OF(recv), FL_SINGLETON) &&
|
|
st_lookup(RCLASS(CLASS_OF(recv))->m_tbl, data->oid, 0)) {
|
|
rb_raise(rb_eTypeError, "method `%s' overridden", rb_id2name(data->oid));
|
|
}
|
|
if (!((TYPE(data->rklass) == T_MODULE) ?
|
|
rb_obj_is_kind_of(recv, data->rklass) :
|
|
rb_obj_is_instance_of(recv, data->rklass))) {
|
|
rb_raise(rb_eTypeError, "bind argument must be an instance of %s",
|
|
rb_class2name(data->rklass));
|
|
}
|
|
}
|
|
|
|
method = Data_Make_Struct(rb_cMethod,struct METHOD,bm_mark,free,bound);
|
|
*bound = *data;
|
|
bound->recv = recv;
|
|
bound->rklass = CLASS_OF(recv);
|
|
|
|
return method;
|
|
}
|
|
|
|
static VALUE
|
|
method_arity(method)
|
|
VALUE method;
|
|
{
|
|
struct METHOD *data;
|
|
NODE *body;
|
|
int n;
|
|
|
|
Data_Get_Struct(method, struct METHOD, data);
|
|
|
|
body = data->body;
|
|
switch (nd_type(body)) {
|
|
case NODE_CFUNC:
|
|
if (body->nd_argc < 0) return INT2FIX(-1);
|
|
return INT2FIX(body->nd_argc);
|
|
case NODE_ZSUPER:
|
|
return INT2FIX(-1);
|
|
case NODE_ATTRSET:
|
|
return INT2FIX(1);
|
|
case NODE_IVAR:
|
|
return INT2FIX(0);
|
|
default:
|
|
body = body->nd_next; /* skip NODE_SCOPE */
|
|
if (nd_type(body) == NODE_BLOCK)
|
|
body = body->nd_head;
|
|
if (!body) return INT2FIX(0);
|
|
n = body->nd_cnt;
|
|
if (body->nd_opt || body->nd_rest != -1)
|
|
n = -n-1;
|
|
return INT2FIX(n);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
method_inspect(method)
|
|
VALUE method;
|
|
{
|
|
struct METHOD *data;
|
|
VALUE str;
|
|
const char *s;
|
|
char *sharp = "#";
|
|
|
|
Data_Get_Struct(method, struct METHOD, data);
|
|
str = rb_str_buf_new2("#<");
|
|
s = rb_class2name(CLASS_OF(method));
|
|
rb_str_buf_cat2(str, s);
|
|
rb_str_buf_cat2(str, ": ");
|
|
|
|
if (FL_TEST(data->klass, FL_SINGLETON)) {
|
|
VALUE v = rb_iv_get(data->klass, "__attached__");
|
|
|
|
if (data->recv == Qundef) {
|
|
rb_str_buf_append(str, rb_inspect(data->klass));
|
|
}
|
|
else if (data->recv == v) {
|
|
rb_str_buf_append(str, rb_inspect(v));
|
|
sharp = ".";
|
|
}
|
|
else {
|
|
rb_str_buf_append(str, rb_inspect(data->recv));
|
|
rb_str_buf_cat2(str, "(");
|
|
rb_str_buf_append(str, rb_inspect(v));
|
|
rb_str_buf_cat2(str, ")");
|
|
sharp = ".";
|
|
}
|
|
}
|
|
else {
|
|
rb_str_buf_cat2(str, rb_class2name(data->rklass));
|
|
if (data->rklass != data->klass) {
|
|
rb_str_buf_cat2(str, "(");
|
|
rb_str_buf_cat2(str, rb_class2name(data->klass));
|
|
rb_str_buf_cat2(str, ")");
|
|
}
|
|
}
|
|
rb_str_buf_cat2(str, sharp);
|
|
rb_str_buf_cat2(str, rb_id2name(data->oid));
|
|
rb_str_buf_cat2(str, ">");
|
|
|
|
return str;
|
|
}
|
|
|
|
static VALUE
|
|
mproc()
|
|
{
|
|
VALUE proc;
|
|
|
|
/* emulate ruby's method call */
|
|
PUSH_ITER(ITER_CUR);
|
|
PUSH_FRAME();
|
|
proc = rb_f_lambda();
|
|
POP_FRAME();
|
|
POP_ITER();
|
|
|
|
return proc;
|
|
}
|
|
|
|
static VALUE
|
|
bmcall(args, method)
|
|
VALUE args, method;
|
|
{
|
|
args = svalue_to_avalue(args);
|
|
return method_call(RARRAY(args)->len, RARRAY(args)->ptr, method);
|
|
}
|
|
|
|
static VALUE
|
|
umcall(args, method)
|
|
VALUE args, method;
|
|
{
|
|
return umethod_call(0, 0, method);
|
|
}
|
|
|
|
VALUE
|
|
rb_proc_new(func, val)
|
|
VALUE (*func)(ANYARGS); /* VALUE yieldarg[, VALUE procarg] */
|
|
VALUE val;
|
|
{
|
|
return rb_iterate((VALUE(*)_((VALUE)))mproc, 0, func, val);
|
|
}
|
|
|
|
static VALUE
|
|
method_proc(method)
|
|
VALUE method;
|
|
{
|
|
return rb_iterate((VALUE(*)_((VALUE)))mproc, 0, bmcall, method);
|
|
}
|
|
|
|
static VALUE
|
|
umethod_proc(method)
|
|
VALUE method;
|
|
{
|
|
return rb_iterate((VALUE(*)_((VALUE)))mproc, 0, umcall, method);
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_define_method(argc, argv, mod)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE mod;
|
|
{
|
|
ID id;
|
|
VALUE body;
|
|
NODE *node;
|
|
int noex;
|
|
|
|
if (argc == 1) {
|
|
id = rb_to_id(argv[0]);
|
|
body = rb_f_lambda();
|
|
}
|
|
else if (argc == 2) {
|
|
id = rb_to_id(argv[0]);
|
|
body = argv[1];
|
|
if (!rb_obj_is_kind_of(body, rb_cMethod) && !rb_obj_is_proc(body)) {
|
|
rb_raise(rb_eTypeError, "wrong argument type %s (expected Proc/Method)",
|
|
rb_class2name(CLASS_OF(body)));
|
|
}
|
|
}
|
|
else {
|
|
rb_raise(rb_eArgError, "wrong number of arguments(%d for 1)", argc);
|
|
}
|
|
if (RDATA(body)->dmark == (RUBY_DATA_FUNC)bm_mark) {
|
|
node = NEW_DMETHOD(method_unbind(body));
|
|
}
|
|
else if (RDATA(body)->dmark == (RUBY_DATA_FUNC)blk_mark) {
|
|
struct BLOCK *block;
|
|
|
|
body = bind_clone(body);
|
|
Data_Get_Struct(body, struct BLOCK, block);
|
|
block->frame.last_func = id;
|
|
block->frame.last_class = mod;
|
|
node = NEW_BMETHOD(body);
|
|
}
|
|
else {
|
|
/* type error */
|
|
rb_raise(rb_eTypeError, "wrong argument type (expected Proc/Method)");
|
|
}
|
|
|
|
if (SCOPE_TEST(SCOPE_PRIVATE)) {
|
|
noex = NOEX_PRIVATE;
|
|
}
|
|
else if (SCOPE_TEST(SCOPE_PROTECTED)) {
|
|
noex = NOEX_PROTECTED;
|
|
}
|
|
else {
|
|
noex = NOEX_PUBLIC;
|
|
}
|
|
rb_add_method(mod, id, node, noex);
|
|
if (scope_vmode == SCOPE_MODFUNC) {
|
|
rb_add_method(rb_singleton_class(mod), id, node, NOEX_PUBLIC);
|
|
rb_funcall(mod, singleton_added, 1, ID2SYM(id));
|
|
}
|
|
if (FL_TEST(mod, FL_SINGLETON)) {
|
|
rb_funcall(rb_iv_get(mod, "__attached__"), singleton_added, 1, ID2SYM(id));
|
|
}
|
|
else {
|
|
rb_funcall(mod, added, 1, ID2SYM(id));
|
|
}
|
|
return body;
|
|
}
|
|
|
|
void
|
|
Init_Proc()
|
|
{
|
|
rb_eLocalJumpError = rb_define_class("LocalJumpError", rb_eStandardError);
|
|
rb_define_method(rb_eLocalJumpError, "exitstatus", localjump_exitstatus, 0);
|
|
|
|
rb_eSysStackError = rb_define_class("SystemStackError", rb_eStandardError);
|
|
|
|
rb_cProc = rb_define_class("Proc", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cProc), "allocate");
|
|
rb_define_singleton_method(rb_cProc, "new", proc_s_new, -1);
|
|
|
|
rb_define_method(rb_cProc, "call", proc_call, -2);
|
|
rb_define_method(rb_cProc, "yield", proc_yield, -2);
|
|
rb_define_method(rb_cProc, "arity", proc_arity, 0);
|
|
rb_define_method(rb_cProc, "[]", proc_call, -2);
|
|
rb_define_method(rb_cProc, "==", proc_eq, 1);
|
|
rb_define_method(rb_cProc, "to_s", proc_to_s, 0);
|
|
rb_define_method(rb_cProc, "to_proc", proc_to_proc, 0);
|
|
rb_define_method(rb_cProc, "binding", proc_binding, 0);
|
|
rb_define_global_function("proc", rb_f_lambda, 0);
|
|
rb_define_global_function("lambda", rb_f_lambda, 0);
|
|
rb_define_global_function("binding", rb_f_binding, 0);
|
|
rb_cBinding = rb_define_class("Binding", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cBinding), "allocate");
|
|
rb_undef_method(CLASS_OF(rb_cBinding), "new");
|
|
rb_define_method(rb_cBinding, "clone", bind_clone, 0);
|
|
|
|
rb_cMethod = rb_define_class("Method", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cMethod), "allocate");
|
|
rb_undef_method(CLASS_OF(rb_cMethod), "new");
|
|
rb_define_method(rb_cMethod, "==", method_eq, 1);
|
|
rb_define_method(rb_cMethod, "clone", method_clone, 0);
|
|
rb_define_method(rb_cMethod, "call", method_call, -1);
|
|
rb_define_method(rb_cMethod, "[]", method_call, -1);
|
|
rb_define_method(rb_cMethod, "arity", method_arity, 0);
|
|
rb_define_method(rb_cMethod, "inspect", method_inspect, 0);
|
|
rb_define_method(rb_cMethod, "to_s", method_inspect, 0);
|
|
rb_define_method(rb_cMethod, "to_proc", method_proc, 0);
|
|
rb_define_method(rb_cMethod, "unbind", method_unbind, 0);
|
|
rb_define_method(rb_mKernel, "method", rb_obj_method, 1);
|
|
|
|
rb_cUnboundMethod = rb_define_class("UnboundMethod", rb_cMethod);
|
|
rb_define_method(rb_cUnboundMethod, "call", umethod_call, -1);
|
|
rb_define_method(rb_cUnboundMethod, "[]", umethod_call, -1);
|
|
rb_define_method(rb_cUnboundMethod, "to_proc", umethod_proc, 0);
|
|
rb_define_method(rb_cUnboundMethod, "bind", umethod_bind, 1);
|
|
rb_define_method(rb_cUnboundMethod, "unbind", umethod_unbind, 0);
|
|
rb_define_method(rb_cModule, "instance_method", rb_mod_method, 1);
|
|
}
|
|
|
|
static VALUE rb_eThreadError;
|
|
|
|
int rb_thread_pending = 0;
|
|
|
|
VALUE rb_cThread;
|
|
|
|
extern VALUE rb_last_status;
|
|
|
|
enum thread_status {
|
|
THREAD_TO_KILL,
|
|
THREAD_RUNNABLE,
|
|
THREAD_STOPPED,
|
|
THREAD_KILLED
|
|
};
|
|
|
|
#define WAIT_FD (1<<0)
|
|
#define WAIT_SELECT (1<<1)
|
|
#define WAIT_TIME (1<<2)
|
|
#define WAIT_JOIN (1<<3)
|
|
#define WAIT_PID (1<<4)
|
|
|
|
/* +infty, for this purpose */
|
|
#define DELAY_INFTY 1E30
|
|
|
|
/* typedef struct thread * rb_thread_t; */
|
|
|
|
struct thread {
|
|
struct thread *next, *prev;
|
|
jmp_buf context;
|
|
|
|
VALUE result;
|
|
|
|
int stk_len;
|
|
int stk_max;
|
|
VALUE*stk_ptr;
|
|
VALUE*stk_pos;
|
|
|
|
struct FRAME *frame;
|
|
struct SCOPE *scope;
|
|
struct RVarmap *dyna_vars;
|
|
struct BLOCK *block;
|
|
struct iter *iter;
|
|
struct tag *tag;
|
|
VALUE klass;
|
|
VALUE wrapper;
|
|
NODE *cref;
|
|
|
|
int flags; /* misc. states (vmode/rb_trap_immediate/raised) */
|
|
|
|
char *file;
|
|
int line;
|
|
|
|
int tracing;
|
|
VALUE errinfo;
|
|
VALUE last_status;
|
|
VALUE last_line;
|
|
VALUE last_match;
|
|
|
|
int safe;
|
|
|
|
enum thread_status status;
|
|
int wait_for;
|
|
int fd;
|
|
fd_set readfds;
|
|
fd_set writefds;
|
|
fd_set exceptfds;
|
|
int select_value;
|
|
double delay;
|
|
rb_thread_t join;
|
|
|
|
int abort;
|
|
int priority;
|
|
int gid;
|
|
|
|
st_table *locals;
|
|
|
|
VALUE thread;
|
|
};
|
|
|
|
#define THREAD_RAISED 0x200 /* temporary flag */
|
|
#define THREAD_TERMINATING 0x400 /* persistent flag */
|
|
#define THREAD_FLAGS_MASK 0x400 /* mask for persistent flags */
|
|
|
|
#define FOREACH_THREAD_FROM(f,x) x = f; do { x = x->next;
|
|
#define END_FOREACH_FROM(f,x) } while (x != f)
|
|
|
|
#define FOREACH_THREAD(x) FOREACH_THREAD_FROM(curr_thread,x)
|
|
#define END_FOREACH(x) END_FOREACH_FROM(curr_thread,x)
|
|
|
|
static const char *
|
|
thread_status_name(status)
|
|
enum thread_status status;
|
|
{
|
|
switch (status) {
|
|
case THREAD_RUNNABLE:
|
|
return "run";
|
|
case THREAD_STOPPED:
|
|
return "sleep";
|
|
case THREAD_TO_KILL:
|
|
return "aborting";
|
|
case THREAD_KILLED:
|
|
return "dead";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
/* $SAFE accessor */
|
|
void
|
|
rb_set_safe_level(level)
|
|
int level;
|
|
{
|
|
if (level > ruby_safe_level) {
|
|
ruby_safe_level = level;
|
|
curr_thread->safe = level;
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
safe_getter()
|
|
{
|
|
return INT2NUM(ruby_safe_level);
|
|
}
|
|
|
|
static void
|
|
safe_setter(val)
|
|
VALUE val;
|
|
{
|
|
int level = NUM2INT(val);
|
|
|
|
if (level < ruby_safe_level) {
|
|
rb_raise(rb_eSecurityError, "tried to downgrade safe level from %d to %d",
|
|
ruby_safe_level, level);
|
|
}
|
|
ruby_safe_level = level;
|
|
curr_thread->safe = level;
|
|
}
|
|
|
|
/* Return the current time as a floating-point number */
|
|
static double
|
|
timeofday()
|
|
{
|
|
struct timeval tv;
|
|
gettimeofday(&tv, NULL);
|
|
return (double)tv.tv_sec + (double)tv.tv_usec * 1e-6;
|
|
}
|
|
|
|
#define STACK(addr) (th->stk_pos<(VALUE*)(addr) && (VALUE*)(addr)<th->stk_pos+th->stk_len)
|
|
#define ADJ(addr) (void*)(STACK(addr)?(((VALUE*)(addr)-th->stk_pos)+th->stk_ptr):(VALUE*)(addr))
|
|
|
|
static void
|
|
thread_mark(th)
|
|
rb_thread_t th;
|
|
{
|
|
struct FRAME *frame;
|
|
struct BLOCK *block;
|
|
|
|
rb_gc_mark(th->result);
|
|
rb_gc_mark(th->thread);
|
|
if (th->join) rb_gc_mark(th->join->thread);
|
|
|
|
rb_gc_mark(th->klass);
|
|
rb_gc_mark(th->wrapper);
|
|
rb_gc_mark((VALUE)th->cref);
|
|
|
|
rb_gc_mark((VALUE)th->scope);
|
|
rb_gc_mark((VALUE)th->dyna_vars);
|
|
rb_gc_mark(th->errinfo);
|
|
rb_gc_mark(th->last_line);
|
|
rb_gc_mark(th->last_match);
|
|
rb_mark_tbl(th->locals);
|
|
|
|
/* mark data in copied stack */
|
|
if (th == curr_thread) return;
|
|
if (th->status == THREAD_KILLED) return;
|
|
if (th->stk_len == 0) return; /* stack not active, no need to mark. */
|
|
if (th->stk_ptr) {
|
|
rb_gc_mark_locations(th->stk_ptr, th->stk_ptr+th->stk_len);
|
|
#if defined(THINK_C) || defined(__human68k__)
|
|
rb_gc_mark_locations(th->stk_ptr+2, th->stk_ptr+th->stk_len+2);
|
|
#endif
|
|
}
|
|
frame = th->frame;
|
|
while (frame && frame != top_frame) {
|
|
frame = ADJ(frame);
|
|
rb_gc_mark_frame(frame);
|
|
if (frame->tmp) {
|
|
struct FRAME *tmp = frame->tmp;
|
|
|
|
while (tmp && tmp != top_frame) {
|
|
tmp = ADJ(tmp);
|
|
rb_gc_mark_frame(tmp);
|
|
tmp = tmp->prev;
|
|
}
|
|
}
|
|
frame = frame->prev;
|
|
}
|
|
block = th->block;
|
|
while (block) {
|
|
block = ADJ(block);
|
|
rb_gc_mark_frame(&block->frame);
|
|
block = block->prev;
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_gc_mark_threads()
|
|
{
|
|
rb_thread_t th;
|
|
|
|
/* static global mark */
|
|
rb_gc_mark((VALUE)ruby_cref);
|
|
|
|
if (!curr_thread) return;
|
|
FOREACH_THREAD(th) {
|
|
rb_gc_mark(th->thread);
|
|
} END_FOREACH(th);
|
|
}
|
|
|
|
static void
|
|
thread_free(th)
|
|
rb_thread_t th;
|
|
{
|
|
if (th->stk_ptr) free(th->stk_ptr);
|
|
th->stk_ptr = 0;
|
|
if (th->locals) st_free_table(th->locals);
|
|
if (th->status != THREAD_KILLED) {
|
|
if (th->prev) th->prev->next = th->next;
|
|
if (th->next) th->next->prev = th->prev;
|
|
}
|
|
if (th != main_thread) free(th);
|
|
}
|
|
|
|
static rb_thread_t
|
|
rb_thread_check(data)
|
|
VALUE data;
|
|
{
|
|
if (TYPE(data) != T_DATA || RDATA(data)->dmark != (RUBY_DATA_FUNC)thread_mark) {
|
|
rb_raise(rb_eTypeError, "wrong argument type %s (expected Thread)",
|
|
rb_class2name(CLASS_OF(data)));
|
|
}
|
|
return (rb_thread_t)RDATA(data)->data;
|
|
}
|
|
|
|
static VALUE rb_thread_raise _((int, VALUE*, rb_thread_t));
|
|
|
|
static int th_raise_argc;
|
|
static VALUE th_raise_argv[2];
|
|
static char *th_raise_file;
|
|
static int th_raise_line;
|
|
static VALUE th_cmd;
|
|
static int th_sig;
|
|
static char *th_signm;
|
|
|
|
#define RESTORE_NORMAL 1
|
|
#define RESTORE_FATAL 2
|
|
#define RESTORE_INTERRUPT 3
|
|
#define RESTORE_TRAP 4
|
|
#define RESTORE_RAISE 5
|
|
#define RESTORE_SIGNAL 6
|
|
|
|
extern VALUE *rb_gc_stack_start;
|
|
|
|
static void
|
|
rb_thread_save_context(th)
|
|
rb_thread_t th;
|
|
{
|
|
VALUE *pos;
|
|
int len;
|
|
static VALUE tval;
|
|
|
|
len = ruby_stack_length(&pos);
|
|
th->stk_len = 0;
|
|
th->stk_pos = (rb_gc_stack_start<pos)?rb_gc_stack_start
|
|
:rb_gc_stack_start - len;
|
|
if (len > th->stk_max) {
|
|
REALLOC_N(th->stk_ptr, VALUE, len);
|
|
th->stk_max = len;
|
|
}
|
|
th->stk_len = len;
|
|
FLUSH_REGISTER_WINDOWS;
|
|
MEMCPY(th->stk_ptr, th->stk_pos, VALUE, th->stk_len);
|
|
|
|
th->frame = ruby_frame;
|
|
th->scope = ruby_scope;
|
|
th->klass = ruby_class;
|
|
th->wrapper = ruby_wrapper;
|
|
th->cref = ruby_cref;
|
|
th->dyna_vars = ruby_dyna_vars;
|
|
th->block = ruby_block;
|
|
th->flags &= THREAD_FLAGS_MASK;
|
|
th->flags |= (rb_trap_immediate<<8) | scope_vmode;
|
|
th->iter = ruby_iter;
|
|
th->tag = prot_tag;
|
|
th->tracing = tracing;
|
|
th->errinfo = ruby_errinfo;
|
|
th->last_status = rb_last_status;
|
|
tval = rb_lastline_get();
|
|
rb_lastline_set(th->last_line);
|
|
th->last_line = tval;
|
|
tval = rb_backref_get();
|
|
rb_backref_set(th->last_match);
|
|
th->last_match = tval;
|
|
th->safe = ruby_safe_level;
|
|
|
|
th->file = ruby_sourcefile;
|
|
th->line = ruby_sourceline;
|
|
}
|
|
|
|
static int
|
|
thread_switch(n)
|
|
int n;
|
|
{
|
|
switch (n) {
|
|
case 0:
|
|
return 0;
|
|
case RESTORE_FATAL:
|
|
JUMP_TAG(TAG_FATAL);
|
|
break;
|
|
case RESTORE_INTERRUPT:
|
|
rb_interrupt();
|
|
break;
|
|
case RESTORE_TRAP:
|
|
rb_trap_eval(th_cmd, th_sig);
|
|
errno = EINTR;
|
|
break;
|
|
case RESTORE_RAISE:
|
|
ruby_frame->last_func = 0;
|
|
ruby_sourcefile = th_raise_file;
|
|
ruby_sourceline = th_raise_line;
|
|
rb_f_raise(th_raise_argc, th_raise_argv);
|
|
break;
|
|
case RESTORE_SIGNAL:
|
|
rb_raise(rb_eSignal, "SIG%s", th_signm);
|
|
break;
|
|
case RESTORE_NORMAL:
|
|
default:
|
|
break;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#define THREAD_SAVE_CONTEXT(th) \
|
|
(rb_thread_save_context(th),thread_switch(setjmp((th)->context)))
|
|
|
|
static void rb_thread_restore_context _((rb_thread_t,int));
|
|
|
|
static void
|
|
stack_extend(th, exit)
|
|
rb_thread_t th;
|
|
int exit;
|
|
{
|
|
VALUE space[1024];
|
|
|
|
memset(space, 0, 1); /* prevent array from optimization */
|
|
rb_thread_restore_context(th, exit);
|
|
}
|
|
|
|
static void
|
|
rb_thread_restore_context(th, exit)
|
|
rb_thread_t th;
|
|
int exit;
|
|
{
|
|
VALUE v;
|
|
static rb_thread_t tmp;
|
|
static int ex;
|
|
static VALUE tval;
|
|
|
|
if (!th->stk_ptr) rb_bug("unsaved context");
|
|
|
|
if (&v < rb_gc_stack_start) {
|
|
/* Stack grows downward */
|
|
if (&v > th->stk_pos) stack_extend(th, exit);
|
|
}
|
|
else {
|
|
/* Stack grows upward */
|
|
if (&v < th->stk_pos + th->stk_len) stack_extend(th, exit);
|
|
}
|
|
|
|
ruby_frame = th->frame;
|
|
ruby_scope = th->scope;
|
|
ruby_class = th->klass;
|
|
ruby_wrapper = th->wrapper;
|
|
ruby_cref = th->cref;
|
|
ruby_dyna_vars = th->dyna_vars;
|
|
ruby_block = th->block;
|
|
scope_vmode = th->flags&SCOPE_MASK;
|
|
rb_trap_immediate = (th->flags&0x100)?1:0;
|
|
ruby_iter = th->iter;
|
|
prot_tag = th->tag;
|
|
tracing = th->tracing;
|
|
ruby_errinfo = th->errinfo;
|
|
rb_last_status = th->last_status;
|
|
ruby_safe_level = th->safe;
|
|
|
|
ruby_sourcefile = th->file;
|
|
ruby_sourceline = th->line;
|
|
|
|
tmp = th;
|
|
ex = exit;
|
|
FLUSH_REGISTER_WINDOWS;
|
|
MEMCPY(tmp->stk_pos, tmp->stk_ptr, VALUE, tmp->stk_len);
|
|
|
|
tval = rb_lastline_get();
|
|
rb_lastline_set(tmp->last_line);
|
|
tmp->last_line = tval;
|
|
tval = rb_backref_get();
|
|
rb_backref_set(tmp->last_match);
|
|
tmp->last_match = tval;
|
|
|
|
longjmp(tmp->context, ex);
|
|
}
|
|
|
|
static void
|
|
rb_thread_ready(th)
|
|
rb_thread_t th;
|
|
{
|
|
th->wait_for = 0;
|
|
if (th->status != THREAD_TO_KILL) {
|
|
th->status = THREAD_RUNNABLE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
rb_thread_remove(th)
|
|
rb_thread_t th;
|
|
{
|
|
if (th->status == THREAD_KILLED) return;
|
|
|
|
rb_thread_ready(th);
|
|
th->status = THREAD_KILLED;
|
|
th->gid = 0;
|
|
th->prev->next = th->next;
|
|
th->next->prev = th->prev;
|
|
}
|
|
|
|
static int
|
|
rb_thread_dead(th)
|
|
rb_thread_t th;
|
|
{
|
|
return th->status == THREAD_KILLED;
|
|
}
|
|
|
|
void
|
|
rb_thread_fd_close(fd)
|
|
int fd;
|
|
{
|
|
rb_thread_t th;
|
|
|
|
FOREACH_THREAD(th) {
|
|
if ((th->wait_for & WAIT_FD) && fd == th->fd) {
|
|
VALUE exc = rb_exc_new2(rb_eIOError, "stream closed");
|
|
rb_thread_raise(1, &exc, th);
|
|
}
|
|
}
|
|
END_FOREACH(th);
|
|
}
|
|
|
|
static void
|
|
rb_thread_deadlock()
|
|
{
|
|
if (curr_thread == main_thread) {
|
|
rb_raise(rb_eFatal, "Thread: deadlock");
|
|
}
|
|
curr_thread = main_thread;
|
|
th_raise_argc = 1;
|
|
th_raise_argv[0] = rb_exc_new2(rb_eFatal, "Thread: deadlock");
|
|
th_raise_file = ruby_sourcefile;
|
|
th_raise_line = ruby_sourceline;
|
|
rb_thread_restore_context(main_thread, RESTORE_RAISE);
|
|
}
|
|
|
|
static void
|
|
copy_fds(dst, src, max)
|
|
fd_set *dst, *src;
|
|
int max;
|
|
{
|
|
int n = 0;
|
|
int i;
|
|
|
|
for (i=0; i<=max; i++) {
|
|
if (FD_ISSET(i, src)) {
|
|
n = i;
|
|
FD_SET(i, dst);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
match_fds(dst, src, max)
|
|
fd_set *dst, *src;
|
|
int max;
|
|
{
|
|
int i;
|
|
|
|
for (i=0; i<=max; i++) {
|
|
if (FD_ISSET(i, src) && FD_ISSET(i, dst)) {
|
|
return Qtrue;
|
|
}
|
|
}
|
|
return Qfalse;
|
|
}
|
|
|
|
static int
|
|
intersect_fds(src, dst, max)
|
|
fd_set *src, *dst;
|
|
int max;
|
|
{
|
|
int i, n = 0;
|
|
|
|
for (i=0; i<=max; i++) {
|
|
if (FD_ISSET(i, dst)) {
|
|
if (FD_ISSET(i, src)) {
|
|
/* Wake up only one thread per fd. */
|
|
FD_CLR(i, src);
|
|
++n;
|
|
}
|
|
else {
|
|
FD_CLR(i, dst);
|
|
}
|
|
}
|
|
}
|
|
return n;
|
|
}
|
|
|
|
static int
|
|
find_bad_fds(dst, src, max)
|
|
fd_set *dst, *src;
|
|
int max;
|
|
{
|
|
int i, test = Qfalse;
|
|
|
|
for (i=0; i<=max; i++) {
|
|
if (FD_ISSET(i, src) && !FD_ISSET(i, dst)) {
|
|
FD_CLR(i, src);
|
|
test = Qtrue;
|
|
}
|
|
}
|
|
return test;
|
|
}
|
|
|
|
void
|
|
rb_thread_schedule()
|
|
{
|
|
rb_thread_t next; /* OK */
|
|
rb_thread_t th;
|
|
rb_thread_t curr;
|
|
int found = 0;
|
|
|
|
fd_set readfds;
|
|
fd_set writefds;
|
|
fd_set exceptfds;
|
|
struct timeval delay_tv, *delay_ptr;
|
|
double delay, now; /* OK */
|
|
int n, max;
|
|
int need_select = 0;
|
|
int select_timeout = 0;
|
|
|
|
rb_thread_pending = 0;
|
|
if (curr_thread == curr_thread->next
|
|
&& curr_thread->status == THREAD_RUNNABLE)
|
|
return;
|
|
|
|
next = 0;
|
|
curr = curr_thread; /* starting thread */
|
|
|
|
while (curr->status == THREAD_KILLED) {
|
|
curr = curr->prev;
|
|
}
|
|
|
|
again:
|
|
max = -1;
|
|
FD_ZERO(&readfds);
|
|
FD_ZERO(&writefds);
|
|
FD_ZERO(&exceptfds);
|
|
delay = DELAY_INFTY;
|
|
now = -1.0;
|
|
|
|
FOREACH_THREAD_FROM(curr, th) {
|
|
if (!found && th->status <= THREAD_RUNNABLE) {
|
|
found = 1;
|
|
}
|
|
if (th->status != THREAD_STOPPED) continue;
|
|
if (th->wait_for & WAIT_JOIN) {
|
|
if (rb_thread_dead(th->join)) {
|
|
th->status = THREAD_RUNNABLE;
|
|
found = 1;
|
|
}
|
|
}
|
|
if (th->wait_for & WAIT_FD) {
|
|
FD_SET(th->fd, &readfds);
|
|
if (max < th->fd) max = th->fd;
|
|
need_select = 1;
|
|
}
|
|
if (th->wait_for & WAIT_SELECT) {
|
|
copy_fds(&readfds, &th->readfds, th->fd);
|
|
copy_fds(&writefds, &th->writefds, th->fd);
|
|
copy_fds(&exceptfds, &th->exceptfds, th->fd);
|
|
if (max < th->fd) max = th->fd;
|
|
need_select = 1;
|
|
if (th->wait_for & WAIT_TIME) {
|
|
select_timeout = 1;
|
|
}
|
|
th->select_value = 0;
|
|
}
|
|
if (th->wait_for & WAIT_TIME) {
|
|
double th_delay;
|
|
|
|
if (now < 0.0) now = timeofday();
|
|
th_delay = th->delay - now;
|
|
if (th_delay <= 0.0) {
|
|
th->status = THREAD_RUNNABLE;
|
|
found = 1;
|
|
}
|
|
else if (th_delay < delay) {
|
|
delay = th_delay;
|
|
need_select = 1;
|
|
}
|
|
else if (th->delay == DELAY_INFTY) {
|
|
need_select = 1;
|
|
}
|
|
}
|
|
}
|
|
END_FOREACH_FROM(curr, th);
|
|
|
|
/* Do the select if needed */
|
|
if (need_select) {
|
|
/* Convert delay to a timeval */
|
|
/* If a thread is runnable, just poll */
|
|
if (found) {
|
|
delay_tv.tv_sec = 0;
|
|
delay_tv.tv_usec = 0;
|
|
delay_ptr = &delay_tv;
|
|
}
|
|
else if (delay == DELAY_INFTY) {
|
|
delay_ptr = 0;
|
|
}
|
|
else {
|
|
delay_tv.tv_sec = delay;
|
|
delay_tv.tv_usec = (delay - (double)delay_tv.tv_sec)*1e6;
|
|
delay_ptr = &delay_tv;
|
|
}
|
|
|
|
n = select(max+1, &readfds, &writefds, &exceptfds, delay_ptr);
|
|
if (n < 0) {
|
|
int e = errno;
|
|
|
|
if (rb_trap_pending) rb_trap_exec();
|
|
if (e == EINTR) goto again;
|
|
#ifdef ERESTART
|
|
if (e == ERESTART) goto again;
|
|
#endif
|
|
FOREACH_THREAD_FROM(curr, th) {
|
|
if (th->wait_for & WAIT_SELECT) {
|
|
int v = 0;
|
|
|
|
v |= find_bad_fds(&readfds, &th->readfds, th->fd);
|
|
v |= find_bad_fds(&writefds, &th->writefds, th->fd);
|
|
v |= find_bad_fds(&exceptfds, &th->exceptfds, th->fd);
|
|
if (v) {
|
|
th->select_value = n;
|
|
n = max;
|
|
}
|
|
}
|
|
}
|
|
END_FOREACH_FROM(curr, th);
|
|
}
|
|
if (select_timeout && n == 0) {
|
|
if (now < 0.0) now = timeofday();
|
|
FOREACH_THREAD_FROM(curr, th) {
|
|
if (((th->wait_for&(WAIT_SELECT|WAIT_TIME)) == (WAIT_SELECT|WAIT_TIME)) &&
|
|
th->delay <= now) {
|
|
th->status = THREAD_RUNNABLE;
|
|
th->wait_for = 0;
|
|
th->select_value = 0;
|
|
found = 1;
|
|
intersect_fds(&readfds, &th->readfds, max);
|
|
intersect_fds(&writefds, &th->writefds, max);
|
|
intersect_fds(&exceptfds, &th->exceptfds, max);
|
|
}
|
|
}
|
|
END_FOREACH_FROM(curr, th);
|
|
}
|
|
if (n > 0) {
|
|
now = -1.0;
|
|
/* Some descriptors are ready.
|
|
Make the corresponding threads runnable. */
|
|
FOREACH_THREAD_FROM(curr, th) {
|
|
if ((th->wait_for&WAIT_FD) && FD_ISSET(th->fd, &readfds)) {
|
|
/* Wake up only one thread per fd. */
|
|
FD_CLR(th->fd, &readfds);
|
|
th->status = THREAD_RUNNABLE;
|
|
th->fd = 0;
|
|
th->wait_for = 0;
|
|
found = 1;
|
|
}
|
|
if ((th->wait_for&WAIT_SELECT) &&
|
|
(match_fds(&readfds, &th->readfds, max) ||
|
|
match_fds(&writefds, &th->writefds, max) ||
|
|
match_fds(&exceptfds, &th->exceptfds, max))) {
|
|
/* Wake up only one thread per fd. */
|
|
th->status = THREAD_RUNNABLE;
|
|
th->wait_for = 0;
|
|
n = intersect_fds(&readfds, &th->readfds, max) +
|
|
intersect_fds(&writefds, &th->writefds, max) +
|
|
intersect_fds(&exceptfds, &th->exceptfds, max);
|
|
th->select_value = n;
|
|
found = 1;
|
|
}
|
|
}
|
|
END_FOREACH_FROM(curr, th);
|
|
}
|
|
/* The delays for some of the threads should have expired.
|
|
Go through the loop once more, to check the delays. */
|
|
if (!found && delay != DELAY_INFTY)
|
|
goto again;
|
|
}
|
|
|
|
FOREACH_THREAD_FROM(curr, th) {
|
|
if (th->status == THREAD_TO_KILL) {
|
|
next = th;
|
|
break;
|
|
}
|
|
if (th->status == THREAD_RUNNABLE && th->stk_ptr) {
|
|
if (!next || next->priority < th->priority)
|
|
next = th;
|
|
}
|
|
}
|
|
END_FOREACH_FROM(curr, th);
|
|
|
|
if (!next) {
|
|
/* raise fatal error to main thread */
|
|
curr_thread->file = ruby_sourcefile;
|
|
curr_thread->line = ruby_sourceline;
|
|
FOREACH_THREAD_FROM(curr, th) {
|
|
fprintf(stderr, "deadlock 0x%lx: %d:%d %s - %s:%d\n",
|
|
th->thread, th->status,
|
|
th->wait_for, th==main_thread ? "(main)" : "",
|
|
th->file, th->line);
|
|
}
|
|
END_FOREACH_FROM(curr, th);
|
|
next = main_thread;
|
|
rb_thread_ready(next);
|
|
next->status = THREAD_TO_KILL;
|
|
rb_thread_save_context(curr_thread);
|
|
rb_thread_deadlock();
|
|
}
|
|
next->wait_for = 0;
|
|
if (next->status == THREAD_RUNNABLE && next == curr_thread) {
|
|
return;
|
|
}
|
|
|
|
/* context switch */
|
|
if (curr == curr_thread) {
|
|
if (THREAD_SAVE_CONTEXT(curr)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
curr_thread = next;
|
|
if (next->status == THREAD_TO_KILL) {
|
|
if (!(next->flags & THREAD_TERMINATING)) {
|
|
next->flags |= THREAD_TERMINATING;
|
|
/* terminate; execute ensure-clause if any */
|
|
rb_thread_restore_context(next, RESTORE_FATAL);
|
|
}
|
|
}
|
|
rb_thread_restore_context(next, RESTORE_NORMAL);
|
|
}
|
|
|
|
void
|
|
rb_thread_wait_fd(fd)
|
|
int fd;
|
|
{
|
|
if (rb_thread_critical) return;
|
|
if (curr_thread == curr_thread->next) return;
|
|
if (curr_thread->status == THREAD_TO_KILL) return;
|
|
|
|
curr_thread->status = THREAD_STOPPED;
|
|
curr_thread->fd = fd;
|
|
curr_thread->wait_for = WAIT_FD;
|
|
rb_thread_schedule();
|
|
}
|
|
|
|
int
|
|
rb_thread_fd_writable(fd)
|
|
int fd;
|
|
{
|
|
if (rb_thread_critical) return Qtrue;
|
|
if (curr_thread == curr_thread->next) return Qtrue;
|
|
if (curr_thread->status == THREAD_TO_KILL) return Qtrue;
|
|
|
|
curr_thread->status = THREAD_STOPPED;
|
|
FD_ZERO(&curr_thread->readfds);
|
|
FD_ZERO(&curr_thread->writefds);
|
|
FD_SET(fd, &curr_thread->writefds);
|
|
FD_ZERO(&curr_thread->exceptfds);
|
|
curr_thread->fd = fd+1;
|
|
curr_thread->wait_for = WAIT_SELECT;
|
|
rb_thread_schedule();
|
|
return Qfalse;
|
|
}
|
|
|
|
void
|
|
rb_thread_wait_for(time)
|
|
struct timeval time;
|
|
{
|
|
double date;
|
|
|
|
if (rb_thread_critical ||
|
|
curr_thread == curr_thread->next ||
|
|
curr_thread->status == THREAD_TO_KILL) {
|
|
int n;
|
|
#ifndef linux
|
|
double d, limit;
|
|
limit = timeofday()+(double)time.tv_sec+(double)time.tv_usec*1e-6;
|
|
#endif
|
|
for (;;) {
|
|
TRAP_BEG;
|
|
n = select(0, 0, 0, 0, &time);
|
|
TRAP_END;
|
|
if (n == 0) return;
|
|
if (n < 0) {
|
|
switch (errno) {
|
|
case EINTR:
|
|
#ifdef ERESTART
|
|
case ERESTART:
|
|
#endif
|
|
return;
|
|
default:
|
|
rb_sys_fail("sleep");
|
|
}
|
|
}
|
|
#ifndef linux
|
|
d = limit - timeofday();
|
|
|
|
time.tv_sec = (int)d;
|
|
time.tv_usec = (int)((d - (int)d)*1e6);
|
|
if (time.tv_usec < 0) {
|
|
time.tv_usec += (long)1e6;
|
|
time.tv_sec -= 1;
|
|
}
|
|
if (time.tv_sec < 0) return;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
date = timeofday() + (double)time.tv_sec + (double)time.tv_usec*1e-6;
|
|
curr_thread->status = THREAD_STOPPED;
|
|
curr_thread->delay = date;
|
|
curr_thread->wait_for = WAIT_TIME;
|
|
rb_thread_schedule();
|
|
}
|
|
|
|
void rb_thread_sleep_forever _((void));
|
|
|
|
int
|
|
rb_thread_alone()
|
|
{
|
|
return curr_thread == curr_thread->next;
|
|
}
|
|
|
|
int
|
|
rb_thread_select(max, read, write, except, timeout)
|
|
int max;
|
|
fd_set *read, *write, *except;
|
|
struct timeval *timeout;
|
|
{
|
|
double limit;
|
|
int n;
|
|
|
|
if (!read && !write && !except) {
|
|
if (!timeout) {
|
|
rb_thread_sleep_forever();
|
|
return 0;
|
|
}
|
|
rb_thread_wait_for(*timeout);
|
|
return 0;
|
|
}
|
|
|
|
if (timeout) {
|
|
limit = timeofday()+
|
|
(double)timeout->tv_sec+(double)timeout->tv_usec*1e-6;
|
|
}
|
|
|
|
if (rb_thread_critical ||
|
|
curr_thread == curr_thread->next ||
|
|
curr_thread->status == THREAD_TO_KILL) {
|
|
#ifndef linux
|
|
struct timeval tv, *tvp = timeout;
|
|
|
|
if (timeout) {
|
|
tv = *timeout;
|
|
tvp = &tv;
|
|
}
|
|
#else
|
|
struct timeval *const tvp = timeout;
|
|
#endif
|
|
for (;;) {
|
|
TRAP_BEG;
|
|
n = select(max, read, write, except, tvp);
|
|
TRAP_END;
|
|
if (n < 0) {
|
|
switch (errno) {
|
|
case EINTR:
|
|
#ifdef ERESTART
|
|
case ERESTART:
|
|
#endif
|
|
#ifndef linux
|
|
if (timeout) {
|
|
double d = limit - timeofday();
|
|
|
|
tv.tv_sec = (unsigned int)d;
|
|
tv.tv_usec = (long)((d-(double)tv.tv_sec)*1e6);
|
|
if (tv.tv_sec < 0) tv.tv_sec = 0;
|
|
if (tv.tv_usec < 0) tv.tv_usec = 0;
|
|
}
|
|
#endif
|
|
continue;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return n;
|
|
}
|
|
}
|
|
|
|
curr_thread->status = THREAD_STOPPED;
|
|
if (read) curr_thread->readfds = *read;
|
|
else FD_ZERO(&curr_thread->readfds);
|
|
if (write) curr_thread->writefds = *write;
|
|
else FD_ZERO(&curr_thread->writefds);
|
|
if (except) curr_thread->exceptfds = *except;
|
|
else FD_ZERO(&curr_thread->exceptfds);
|
|
curr_thread->fd = max;
|
|
curr_thread->wait_for = WAIT_SELECT;
|
|
if (timeout) {
|
|
curr_thread->delay = timeofday() +
|
|
(double)timeout->tv_sec + (double)timeout->tv_usec*1e-6;
|
|
curr_thread->wait_for |= WAIT_TIME;
|
|
}
|
|
rb_thread_schedule();
|
|
if (read) *read = curr_thread->readfds;
|
|
if (write) *write = curr_thread->writefds;
|
|
if (except) *except = curr_thread->exceptfds;
|
|
return curr_thread->select_value;
|
|
}
|
|
|
|
static int rb_thread_join _((rb_thread_t, double));
|
|
|
|
static int
|
|
rb_thread_join(th, limit)
|
|
rb_thread_t th;
|
|
double limit;
|
|
{
|
|
enum thread_status last_status = THREAD_RUNNABLE;
|
|
|
|
if (rb_thread_critical) rb_thread_deadlock();
|
|
if (!rb_thread_dead(th)) {
|
|
if (th == curr_thread)
|
|
rb_raise(rb_eThreadError, "thread tried to join itself");
|
|
if ((th->wait_for & WAIT_JOIN) && th->join == curr_thread)
|
|
rb_raise(rb_eThreadError, "Thread#join: deadlock - mutual join");
|
|
if (curr_thread->status == THREAD_TO_KILL)
|
|
last_status = THREAD_TO_KILL;
|
|
if (limit == 0) return Qfalse;
|
|
curr_thread->status = THREAD_STOPPED;
|
|
curr_thread->join = th;
|
|
curr_thread->wait_for = WAIT_JOIN;
|
|
curr_thread->delay = timeofday() + limit;
|
|
if (limit < DELAY_INFTY) curr_thread->wait_for |= WAIT_TIME;
|
|
rb_thread_schedule();
|
|
curr_thread->status = last_status;
|
|
if (!rb_thread_dead(th)) return Qfalse;
|
|
}
|
|
|
|
if (!NIL_P(th->errinfo) && (th->flags & THREAD_RAISED)) {
|
|
VALUE oldbt = get_backtrace(th->errinfo);
|
|
VALUE errat = make_backtrace();
|
|
|
|
if (TYPE(oldbt) == T_ARRAY && RARRAY(oldbt)->len > 0) {
|
|
rb_ary_unshift(errat, rb_ary_entry(oldbt, 0));
|
|
}
|
|
set_backtrace(th->errinfo, errat);
|
|
rb_exc_raise(th->errinfo);
|
|
}
|
|
|
|
return Qtrue;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_join_m(argc, argv, thread)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE limit;
|
|
double delay = DELAY_INFTY;
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
rb_scan_args(argc, argv, "01", &limit);
|
|
if (!NIL_P(limit)) delay = rb_num2dbl(limit);
|
|
if (!rb_thread_join(th, delay))
|
|
return Qnil;
|
|
return thread;
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_current()
|
|
{
|
|
return curr_thread->thread;
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_main()
|
|
{
|
|
return main_thread->thread;
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_list()
|
|
{
|
|
rb_thread_t th;
|
|
VALUE ary = rb_ary_new();
|
|
|
|
FOREACH_THREAD(th) {
|
|
switch (th->status) {
|
|
case THREAD_RUNNABLE:
|
|
case THREAD_STOPPED:
|
|
case THREAD_TO_KILL:
|
|
rb_ary_push(ary, th->thread);
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
END_FOREACH(th);
|
|
|
|
return ary;
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_wakeup(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (th->status == THREAD_KILLED)
|
|
rb_raise(rb_eThreadError, "killed thread");
|
|
rb_thread_ready(th);
|
|
|
|
return thread;
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_run(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_wakeup(thread);
|
|
if (!rb_thread_critical) rb_thread_schedule();
|
|
|
|
return thread;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_kill(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (th != curr_thread && th->safe < 4) {
|
|
rb_secure(4);
|
|
}
|
|
if (th->status == THREAD_TO_KILL || th->status == THREAD_KILLED)
|
|
return thread;
|
|
if (th == th->next || th == main_thread) rb_exit(0);
|
|
|
|
rb_thread_ready(th);
|
|
th->gid = 0;
|
|
th->status = THREAD_TO_KILL;
|
|
if (!rb_thread_critical) rb_thread_schedule();
|
|
return thread;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_s_kill(obj, th)
|
|
VALUE obj, th;
|
|
{
|
|
return rb_thread_kill(th);
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_exit()
|
|
{
|
|
return rb_thread_kill(curr_thread->thread);
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_pass()
|
|
{
|
|
rb_thread_schedule();
|
|
return Qnil;
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_stop()
|
|
{
|
|
enum thread_status last_status = THREAD_RUNNABLE;
|
|
|
|
rb_thread_critical = 0;
|
|
if (curr_thread == curr_thread->next) {
|
|
rb_raise(rb_eThreadError, "stopping only thread\n\tnote: use sleep to stop forever");
|
|
}
|
|
if (curr_thread->status == THREAD_TO_KILL)
|
|
last_status = THREAD_TO_KILL;
|
|
curr_thread->status = THREAD_STOPPED;
|
|
rb_thread_schedule();
|
|
curr_thread->status = last_status;
|
|
|
|
return Qnil;
|
|
}
|
|
|
|
struct timeval rb_time_timeval();
|
|
|
|
void
|
|
rb_thread_polling()
|
|
{
|
|
if (curr_thread != curr_thread->next) {
|
|
curr_thread->status = THREAD_STOPPED;
|
|
curr_thread->delay = timeofday() + (double)0.06;
|
|
curr_thread->wait_for = WAIT_TIME;
|
|
rb_thread_schedule();
|
|
}
|
|
}
|
|
|
|
void
|
|
rb_thread_sleep(sec)
|
|
int sec;
|
|
{
|
|
if (curr_thread == curr_thread->next) {
|
|
TRAP_BEG;
|
|
sleep(sec);
|
|
TRAP_END;
|
|
return;
|
|
}
|
|
rb_thread_wait_for(rb_time_timeval(INT2FIX(sec)));
|
|
}
|
|
|
|
#if !defined HAVE_PAUSE
|
|
# if defined _WIN32 && !defined __CYGWIN__
|
|
# define pause() Sleep(INFINITE)
|
|
# else
|
|
# define pause() sleep(0x7fffffff)
|
|
# endif
|
|
#endif
|
|
|
|
void
|
|
rb_thread_sleep_forever()
|
|
{
|
|
if (curr_thread == curr_thread->next ||
|
|
curr_thread->status == THREAD_TO_KILL) {
|
|
TRAP_BEG;
|
|
pause();
|
|
TRAP_END;
|
|
return;
|
|
}
|
|
|
|
curr_thread->delay = DELAY_INFTY;
|
|
curr_thread->wait_for = WAIT_TIME;
|
|
curr_thread->status = THREAD_STOPPED;
|
|
rb_thread_schedule();
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_priority(thread)
|
|
VALUE thread;
|
|
{
|
|
return INT2NUM(rb_thread_check(thread)->priority);
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_priority_set(thread, prio)
|
|
VALUE thread, prio;
|
|
{
|
|
rb_thread_t th;
|
|
|
|
rb_secure(4);
|
|
th = rb_thread_check(thread);
|
|
|
|
th->priority = NUM2INT(prio);
|
|
rb_thread_schedule();
|
|
return prio;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_safe_level(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th;
|
|
|
|
th = rb_thread_check(thread);
|
|
if (th == curr_thread) {
|
|
return INT2NUM(ruby_safe_level);
|
|
}
|
|
return INT2NUM(th->safe);
|
|
}
|
|
|
|
static int thread_abort;
|
|
|
|
static VALUE
|
|
rb_thread_s_abort_exc()
|
|
{
|
|
return thread_abort?Qtrue:Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_s_abort_exc_set(self, val)
|
|
VALUE self, val;
|
|
{
|
|
rb_secure(4);
|
|
thread_abort = RTEST(val);
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_abort_exc(thread)
|
|
VALUE thread;
|
|
{
|
|
return rb_thread_check(thread)->abort?Qtrue:Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_abort_exc_set(thread, val)
|
|
VALUE thread, val;
|
|
{
|
|
rb_secure(4);
|
|
rb_thread_check(thread)->abort = RTEST(val);
|
|
return val;
|
|
}
|
|
|
|
#define THREAD_ALLOC(th) do {\
|
|
th = ALLOC(struct thread);\
|
|
\
|
|
th->next = 0;\
|
|
th->prev = 0;\
|
|
\
|
|
th->status = THREAD_RUNNABLE;\
|
|
th->result = 0;\
|
|
th->flags = 0;\
|
|
\
|
|
th->stk_ptr = 0;\
|
|
th->stk_len = 0;\
|
|
th->stk_max = 0;\
|
|
th->wait_for = 0;\
|
|
FD_ZERO(&th->readfds);\
|
|
FD_ZERO(&th->writefds);\
|
|
FD_ZERO(&th->exceptfds);\
|
|
th->delay = 0.0;\
|
|
th->join = 0;\
|
|
\
|
|
th->frame = 0;\
|
|
th->scope = 0;\
|
|
th->klass = 0;\
|
|
th->wrapper = 0;\
|
|
th->cref = ruby_cref;\
|
|
th->dyna_vars = ruby_dyna_vars;\
|
|
th->block = 0;\
|
|
th->iter = 0;\
|
|
th->tag = 0;\
|
|
th->tracing = 0;\
|
|
th->errinfo = Qnil;\
|
|
th->last_status = 0;\
|
|
th->last_line = 0;\
|
|
th->last_match = Qnil;\
|
|
th->abort = 0;\
|
|
th->priority = 0;\
|
|
th->gid = 1;\
|
|
th->locals = 0;\
|
|
} while (0)
|
|
|
|
static rb_thread_t
|
|
rb_thread_alloc(klass)
|
|
VALUE klass;
|
|
{
|
|
rb_thread_t th;
|
|
struct RVarmap *vars;
|
|
|
|
THREAD_ALLOC(th);
|
|
th->thread = Data_Wrap_Struct(klass, thread_mark, thread_free, th);
|
|
|
|
for (vars = th->dyna_vars; vars; vars = vars->next) {
|
|
if (FL_TEST(vars, DVAR_DONT_RECYCLE)) break;
|
|
FL_SET(vars, DVAR_DONT_RECYCLE);
|
|
}
|
|
return th;
|
|
}
|
|
|
|
#if defined(HAVE_SETITIMER)
|
|
static void
|
|
catch_timer(sig)
|
|
int sig;
|
|
{
|
|
#if !defined(POSIX_SIGNAL) && !defined(BSD_SIGNAL)
|
|
signal(sig, catch_timer);
|
|
#endif
|
|
if (!rb_thread_critical) {
|
|
if (rb_trap_immediate) {
|
|
rb_thread_schedule();
|
|
}
|
|
else rb_thread_pending = 1;
|
|
}
|
|
}
|
|
#else
|
|
int rb_thread_tick = THREAD_TICK;
|
|
#endif
|
|
|
|
#if defined(HAVE_SETITIMER)
|
|
static int thread_init = 0;
|
|
|
|
void
|
|
rb_thread_start_timer()
|
|
{
|
|
struct itimerval tval;
|
|
|
|
if (!thread_init) return;
|
|
tval.it_interval.tv_sec = 0;
|
|
tval.it_interval.tv_usec = 10000;
|
|
tval.it_value = tval.it_interval;
|
|
setitimer(ITIMER_VIRTUAL, &tval, NULL);
|
|
}
|
|
|
|
void
|
|
rb_thread_stop_timer()
|
|
{
|
|
struct itimerval tval;
|
|
|
|
if (!thread_init) return;
|
|
tval.it_interval.tv_sec = 0;
|
|
tval.it_interval.tv_usec = 0;
|
|
tval.it_value = tval.it_interval;
|
|
setitimer(ITIMER_VIRTUAL, &tval, NULL);
|
|
}
|
|
#endif
|
|
|
|
static VALUE
|
|
rb_thread_start_0(fn, arg, th_arg)
|
|
VALUE (*fn)();
|
|
void *arg;
|
|
rb_thread_t th_arg;
|
|
{
|
|
volatile rb_thread_t th = th_arg;
|
|
volatile VALUE thread = th->thread;
|
|
struct BLOCK* saved_block = 0;
|
|
enum thread_status status;
|
|
int state;
|
|
|
|
#if defined(HAVE_SETITIMER)
|
|
if (!thread_init) {
|
|
#ifdef POSIX_SIGNAL
|
|
posix_signal(SIGVTALRM, catch_timer);
|
|
#else
|
|
signal(SIGVTALRM, catch_timer);
|
|
#endif
|
|
|
|
thread_init = 1;
|
|
rb_thread_start_timer();
|
|
}
|
|
#endif
|
|
|
|
if (THREAD_SAVE_CONTEXT(curr_thread)) {
|
|
return thread;
|
|
}
|
|
|
|
if (ruby_block) { /* should nail down higher blocks */
|
|
struct BLOCK dummy;
|
|
|
|
dummy.prev = ruby_block;
|
|
blk_copy_prev(&dummy);
|
|
saved_block = ruby_block = dummy.prev;
|
|
}
|
|
scope_dup(ruby_scope);
|
|
|
|
if (!th->next) {
|
|
/* merge in thread list */
|
|
th->prev = curr_thread;
|
|
curr_thread->next->prev = th;
|
|
th->next = curr_thread->next;
|
|
curr_thread->next = th;
|
|
th->priority = curr_thread->priority;
|
|
th->gid = curr_thread->gid;
|
|
}
|
|
|
|
PUSH_TAG(PROT_THREAD);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
if (THREAD_SAVE_CONTEXT(th) == 0) {
|
|
curr_thread = th;
|
|
th->result = (*fn)(arg, th);
|
|
}
|
|
}
|
|
POP_TAG();
|
|
status = th->status;
|
|
|
|
if (th == main_thread) ruby_stop(state);
|
|
rb_thread_remove(th);
|
|
|
|
while (saved_block) {
|
|
struct BLOCK *tmp = saved_block;
|
|
|
|
if (tmp->frame.argc > 0)
|
|
free(tmp->frame.argv);
|
|
saved_block = tmp->prev;
|
|
free(tmp);
|
|
}
|
|
|
|
if (state && status != THREAD_TO_KILL && !NIL_P(ruby_errinfo)) {
|
|
th->flags |= THREAD_RAISED;
|
|
if (state == TAG_FATAL) {
|
|
/* fatal error within this thread, need to stop whole script */
|
|
main_thread->errinfo = ruby_errinfo;
|
|
rb_thread_cleanup();
|
|
}
|
|
else if (rb_obj_is_kind_of(ruby_errinfo, rb_eSystemExit)) {
|
|
if (th->safe >= 4) {
|
|
char buf[32];
|
|
|
|
sprintf(buf, "Insecure exit at level %d", th->safe);
|
|
th->errinfo = rb_exc_new2(rb_eSecurityError, buf);
|
|
}
|
|
else {
|
|
/* delegate exception to main_thread */
|
|
rb_thread_raise(1, &ruby_errinfo, main_thread);
|
|
}
|
|
}
|
|
else if (th->safe < 4 && (thread_abort || th->abort || RTEST(ruby_debug))) {
|
|
VALUE err = rb_exc_new(rb_eSystemExit, 0, 0);
|
|
error_print();
|
|
/* exit on main_thread */
|
|
rb_thread_raise(1, &err, main_thread);
|
|
}
|
|
else {
|
|
th->errinfo = ruby_errinfo;
|
|
}
|
|
}
|
|
rb_thread_schedule();
|
|
return 0; /* not reached */
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_create(fn, arg)
|
|
VALUE (*fn)();
|
|
void *arg;
|
|
{
|
|
return rb_thread_start_0(fn, arg, rb_thread_alloc(rb_cThread));
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_yield(arg, th)
|
|
VALUE arg;
|
|
rb_thread_t th;
|
|
{
|
|
const ID *tbl;
|
|
|
|
scope_dup(ruby_block->scope);
|
|
|
|
tbl = ruby_scope->local_tbl;
|
|
if (tbl) {
|
|
int n = *tbl++;
|
|
for (tbl += 2, n -= 2; n > 0; --n) { /* skip first 2 ($_ and $~) */
|
|
ID id = *tbl++;
|
|
if (id != 0 && !rb_is_local_id(id)) /* push flip states */
|
|
rb_dvar_push(id, Qfalse);
|
|
}
|
|
}
|
|
rb_dvar_push('_', Qnil);
|
|
rb_dvar_push('~', Qnil);
|
|
ruby_block->dyna_vars = ruby_dyna_vars;
|
|
|
|
return rb_yield_0(mvalue_to_svalue(arg), 0, 0, Qtrue);
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_s_new(argc, argv, klass)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE klass;
|
|
{
|
|
rb_thread_t th = rb_thread_alloc(klass);
|
|
volatile VALUE *pos;
|
|
|
|
pos = th->stk_pos;
|
|
rb_obj_call_init(th->thread, argc, argv);
|
|
if (th->stk_pos == 0) {
|
|
rb_raise(rb_eThreadError, "uninitialized thread - check `%s#initialize'",
|
|
rb_class2name(klass));
|
|
}
|
|
|
|
return th->thread;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_initialize(thread, args)
|
|
VALUE thread, args;
|
|
{
|
|
if (!rb_block_given_p()) {
|
|
rb_raise(rb_eThreadError, "must be called with a block");
|
|
}
|
|
return rb_thread_start_0(rb_thread_yield, args, rb_thread_check(thread));
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_start(klass, args)
|
|
VALUE klass, args;
|
|
{
|
|
if (!rb_block_given_p()) {
|
|
rb_raise(rb_eThreadError, "must be called with a block");
|
|
}
|
|
return rb_thread_start_0(rb_thread_yield, args, rb_thread_alloc(klass));
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_value(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
while (!rb_thread_join(th, DELAY_INFTY));
|
|
|
|
return th->result;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_status(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (rb_thread_dead(th)) {
|
|
if (!NIL_P(th->errinfo) && (th->flags & THREAD_RAISED))
|
|
return Qnil;
|
|
return Qfalse;
|
|
}
|
|
|
|
return rb_str_new2(thread_status_name(th->status));
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_alive_p(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (rb_thread_dead(th)) return Qfalse;
|
|
return Qtrue;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_stop_p(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (rb_thread_dead(th)) return Qtrue;
|
|
if (th->status == THREAD_STOPPED) return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
static void
|
|
rb_thread_wait_other_threads()
|
|
{
|
|
rb_thread_t th;
|
|
int found;
|
|
|
|
/* wait other threads to terminate */
|
|
while (curr_thread != curr_thread->next) {
|
|
found = 0;
|
|
FOREACH_THREAD(th) {
|
|
if (th != curr_thread && th->status != THREAD_STOPPED) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
END_FOREACH(th);
|
|
if (!found) return;
|
|
rb_thread_schedule();
|
|
}
|
|
}
|
|
|
|
static void
|
|
rb_thread_cleanup()
|
|
{
|
|
rb_thread_t th;
|
|
|
|
while (curr_thread->status == THREAD_KILLED) {
|
|
curr_thread = curr_thread->prev;
|
|
}
|
|
|
|
FOREACH_THREAD(th) {
|
|
if (th->status != THREAD_KILLED) {
|
|
rb_thread_ready(th);
|
|
th->gid = 0;
|
|
th->priority = 0;
|
|
if (th != main_thread) {
|
|
th->status = THREAD_TO_KILL;
|
|
RDATA(th->thread)->dfree = NULL;
|
|
}
|
|
}
|
|
}
|
|
END_FOREACH(th);
|
|
}
|
|
|
|
int rb_thread_critical;
|
|
|
|
static VALUE
|
|
rb_thread_critical_get()
|
|
{
|
|
return rb_thread_critical?Qtrue:Qfalse;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_critical_set(obj, val)
|
|
VALUE obj, val;
|
|
{
|
|
rb_thread_critical = RTEST(val);
|
|
return val;
|
|
}
|
|
|
|
void
|
|
rb_thread_interrupt()
|
|
{
|
|
rb_thread_critical = 0;
|
|
rb_thread_ready(main_thread);
|
|
if (curr_thread == main_thread) {
|
|
rb_interrupt();
|
|
}
|
|
if (THREAD_SAVE_CONTEXT(curr_thread)) {
|
|
return;
|
|
}
|
|
curr_thread = main_thread;
|
|
rb_thread_restore_context(curr_thread, RESTORE_INTERRUPT);
|
|
}
|
|
|
|
void
|
|
rb_thread_signal_raise(sig)
|
|
char *sig;
|
|
{
|
|
if (sig == 0) return; /* should not happen */
|
|
rb_thread_critical = 0;
|
|
if (curr_thread == main_thread) {
|
|
rb_thread_ready(curr_thread);
|
|
rb_raise(rb_eSignal, "SIG%s", sig);
|
|
}
|
|
rb_thread_ready(main_thread);
|
|
if (THREAD_SAVE_CONTEXT(curr_thread)) {
|
|
return;
|
|
}
|
|
th_signm = sig;
|
|
curr_thread = main_thread;
|
|
rb_thread_restore_context(curr_thread, RESTORE_SIGNAL);
|
|
}
|
|
|
|
void
|
|
rb_thread_trap_eval(cmd, sig)
|
|
VALUE cmd;
|
|
int sig;
|
|
{
|
|
#if 0
|
|
rb_thread_critical = 0;
|
|
if (!rb_thread_dead(curr_thread)) {
|
|
rb_thread_ready(curr_thread);
|
|
rb_trap_eval(cmd, sig);
|
|
return;
|
|
}
|
|
rb_thread_ready(main_thread);
|
|
if (THREAD_SAVE_CONTEXT(curr_thread)) {
|
|
return;
|
|
}
|
|
th_cmd = cmd;
|
|
th_sig = sig;
|
|
curr_thread = main_thread;
|
|
rb_thread_restore_context(curr_thread, RESTORE_TRAP);
|
|
#else
|
|
rb_thread_critical = 0;
|
|
if (!rb_thread_dead(curr_thread)) {
|
|
if (THREAD_SAVE_CONTEXT(curr_thread)) {
|
|
return;
|
|
}
|
|
}
|
|
rb_thread_ready(main_thread);
|
|
th_cmd = cmd;
|
|
th_sig = sig;
|
|
curr_thread = main_thread;
|
|
rb_thread_restore_context(curr_thread, RESTORE_TRAP);
|
|
#endif
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_raise(argc, argv, th)
|
|
int argc;
|
|
VALUE *argv;
|
|
rb_thread_t th;
|
|
{
|
|
if (rb_thread_dead(th)) return Qnil;
|
|
if (curr_thread == th) {
|
|
rb_f_raise(argc, argv);
|
|
}
|
|
|
|
if (THREAD_SAVE_CONTEXT(curr_thread)) {
|
|
return th->thread;
|
|
}
|
|
|
|
rb_scan_args(argc, argv, "11", &th_raise_argv[0], &th_raise_argv[1]);
|
|
rb_thread_ready(th);
|
|
curr_thread = th;
|
|
|
|
th_raise_argc = argc;
|
|
th_raise_file = ruby_sourcefile;
|
|
th_raise_line = ruby_sourceline;
|
|
rb_thread_restore_context(curr_thread, RESTORE_RAISE);
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_raise_m(argc, argv, thread)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (ruby_safe_level > th->safe) {
|
|
rb_secure(4);
|
|
}
|
|
rb_thread_raise(argc, argv, th);
|
|
return Qnil; /* not reached */
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_local_aref(thread, id)
|
|
VALUE thread;
|
|
ID id;
|
|
{
|
|
rb_thread_t th;
|
|
VALUE val;
|
|
|
|
th = rb_thread_check(thread);
|
|
if (ruby_safe_level >= 4 && th != curr_thread) {
|
|
rb_raise(rb_eSecurityError, "Insecure: thread locals");
|
|
}
|
|
if (!th->locals) return Qnil;
|
|
if (st_lookup(th->locals, id, &val)) {
|
|
return val;
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_aref(thread, id)
|
|
VALUE thread, id;
|
|
{
|
|
return rb_thread_local_aref(thread, rb_to_id(id));
|
|
}
|
|
|
|
VALUE
|
|
rb_thread_local_aset(thread, id, val)
|
|
VALUE thread;
|
|
ID id;
|
|
VALUE val;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (ruby_safe_level >= 4 && th != curr_thread) {
|
|
rb_raise(rb_eSecurityError, "Insecure: can't modify thread locals");
|
|
}
|
|
if (OBJ_FROZEN(thread)) rb_error_frozen("thread locals");
|
|
|
|
if (!th->locals) {
|
|
th->locals = st_init_numtable();
|
|
}
|
|
if (NIL_P(val)) {
|
|
st_delete(th->locals, &id, 0);
|
|
return Qnil;
|
|
}
|
|
st_insert(th->locals, id, val);
|
|
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_aset(thread, id, val)
|
|
VALUE thread, id, val;
|
|
{
|
|
return rb_thread_local_aset(thread, rb_to_id(id), val);
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_key_p(thread, id)
|
|
VALUE thread, id;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
|
|
if (!th->locals) return Qfalse;
|
|
if (st_lookup(th->locals, rb_to_id(id), 0))
|
|
return Qtrue;
|
|
return Qfalse;
|
|
}
|
|
|
|
static int
|
|
thread_keys_i(key, value, ary)
|
|
ID key;
|
|
VALUE value, ary;
|
|
{
|
|
rb_ary_push(ary, ID2SYM(key));
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_keys(thread)
|
|
VALUE thread;
|
|
{
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
VALUE ary = rb_ary_new();
|
|
|
|
if (th->locals) {
|
|
st_foreach(th->locals, thread_keys_i, ary);
|
|
}
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
rb_thread_inspect(thread)
|
|
VALUE thread;
|
|
{
|
|
char *cname = rb_class2name(CLASS_OF(thread));
|
|
rb_thread_t th = rb_thread_check(thread);
|
|
const char *status = thread_status_name(th->status);
|
|
VALUE str;
|
|
|
|
str = rb_str_new(0, strlen(cname)+7+16+9+1); /* 7:tags 16:addr 9:status 1:nul */
|
|
sprintf(RSTRING(str)->ptr, "#<%s:0x%lx %s>", cname, thread, status);
|
|
RSTRING(str)->len = strlen(RSTRING(str)->ptr);
|
|
OBJ_INFECT(str, thread);
|
|
|
|
return str;
|
|
}
|
|
|
|
void
|
|
rb_thread_atfork()
|
|
{
|
|
rb_thread_t th;
|
|
|
|
if (rb_thread_alone()) return;
|
|
FOREACH_THREAD(th) {
|
|
if (th != curr_thread) {
|
|
th->gid = 0;
|
|
th->status = THREAD_KILLED;
|
|
}
|
|
}
|
|
END_FOREACH(th);
|
|
main_thread = curr_thread;
|
|
curr_thread->next = curr_thread;
|
|
curr_thread->prev = curr_thread;
|
|
}
|
|
|
|
static VALUE rb_cCont;
|
|
|
|
static VALUE
|
|
rb_callcc(self)
|
|
VALUE self;
|
|
{
|
|
volatile VALUE cont;
|
|
rb_thread_t th;
|
|
struct tag *tag;
|
|
struct RVarmap *vars;
|
|
|
|
THREAD_ALLOC(th);
|
|
cont = Data_Wrap_Struct(rb_cCont, thread_mark, thread_free, th);
|
|
|
|
scope_dup(ruby_scope);
|
|
for (tag=prot_tag; tag; tag=tag->prev) {
|
|
scope_dup(tag->scope);
|
|
}
|
|
if (ruby_block) {
|
|
struct BLOCK *block = ruby_block;
|
|
|
|
while (block) {
|
|
block->tag->flags |= BLOCK_DYNAMIC;
|
|
block = block->prev;
|
|
}
|
|
}
|
|
th->thread = curr_thread->thread;
|
|
|
|
for (vars = th->dyna_vars; vars; vars = vars->next) {
|
|
if (FL_TEST(vars, DVAR_DONT_RECYCLE)) break;
|
|
FL_SET(vars, DVAR_DONT_RECYCLE);
|
|
}
|
|
|
|
if (THREAD_SAVE_CONTEXT(th)) {
|
|
return th->result;
|
|
}
|
|
else {
|
|
return rb_yield(cont);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
rb_cont_call(argc, argv, cont)
|
|
int argc;
|
|
VALUE *argv;
|
|
VALUE cont;
|
|
{
|
|
rb_thread_t th = rb_thread_check(cont);
|
|
|
|
if (th->thread != curr_thread->thread) {
|
|
rb_raise(rb_eRuntimeError, "continuation called across threads");
|
|
}
|
|
switch (argc) {
|
|
case 0:
|
|
th->result = Qnil;
|
|
break;
|
|
case 1:
|
|
th->result = *argv;
|
|
break;
|
|
default:
|
|
th->result = rb_ary_new4(argc, argv);
|
|
break;
|
|
}
|
|
|
|
rb_thread_restore_context(th, RESTORE_NORMAL);
|
|
return Qnil;
|
|
}
|
|
|
|
struct thgroup {
|
|
int gid;
|
|
};
|
|
|
|
static VALUE
|
|
thgroup_s_alloc(klass)
|
|
VALUE klass;
|
|
{
|
|
VALUE group;
|
|
struct thgroup *data;
|
|
static int serial = 1;
|
|
|
|
group = Data_Make_Struct(klass, struct thgroup, 0, free, data);
|
|
data->gid = serial++;
|
|
|
|
return group;
|
|
}
|
|
|
|
static VALUE
|
|
thgroup_list(group)
|
|
VALUE group;
|
|
{
|
|
struct thgroup *data;
|
|
rb_thread_t th;
|
|
VALUE ary;
|
|
|
|
Data_Get_Struct(group, struct thgroup, data);
|
|
ary = rb_ary_new();
|
|
|
|
FOREACH_THREAD(th) {
|
|
if (th->gid == data->gid) {
|
|
rb_ary_push(ary, th->thread);
|
|
}
|
|
}
|
|
END_FOREACH(th);
|
|
|
|
return ary;
|
|
}
|
|
|
|
static VALUE
|
|
thgroup_add(group, thread)
|
|
VALUE group, thread;
|
|
{
|
|
rb_thread_t th;
|
|
struct thgroup *data;
|
|
|
|
rb_secure(4);
|
|
th = rb_thread_check(thread);
|
|
Data_Get_Struct(group, struct thgroup, data);
|
|
|
|
th->gid = data->gid;
|
|
return group;
|
|
}
|
|
|
|
void
|
|
Init_Thread()
|
|
{
|
|
VALUE cThGroup;
|
|
|
|
rb_eThreadError = rb_define_class("ThreadError", rb_eStandardError);
|
|
rb_cThread = rb_define_class("Thread", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cThread), "allocate");
|
|
|
|
rb_define_singleton_method(rb_cThread, "new", rb_thread_s_new, -1);
|
|
rb_define_method(rb_cThread, "initialize", rb_thread_initialize, -2);
|
|
rb_define_singleton_method(rb_cThread, "start", rb_thread_start, -2);
|
|
rb_define_singleton_method(rb_cThread, "fork", rb_thread_start, -2);
|
|
|
|
rb_define_singleton_method(rb_cThread, "stop", rb_thread_stop, 0);
|
|
rb_define_singleton_method(rb_cThread, "kill", rb_thread_s_kill, 1);
|
|
rb_define_singleton_method(rb_cThread, "exit", rb_thread_exit, 0);
|
|
rb_define_singleton_method(rb_cThread, "pass", rb_thread_pass, 0);
|
|
rb_define_singleton_method(rb_cThread, "current", rb_thread_current, 0);
|
|
rb_define_singleton_method(rb_cThread, "main", rb_thread_main, 0);
|
|
rb_define_singleton_method(rb_cThread, "list", rb_thread_list, 0);
|
|
|
|
rb_define_singleton_method(rb_cThread, "critical", rb_thread_critical_get, 0);
|
|
rb_define_singleton_method(rb_cThread, "critical=", rb_thread_critical_set, 1);
|
|
|
|
rb_define_singleton_method(rb_cThread, "abort_on_exception", rb_thread_s_abort_exc, 0);
|
|
rb_define_singleton_method(rb_cThread, "abort_on_exception=", rb_thread_s_abort_exc_set, 1);
|
|
|
|
rb_define_method(rb_cThread, "run", rb_thread_run, 0);
|
|
rb_define_method(rb_cThread, "wakeup", rb_thread_wakeup, 0);
|
|
rb_define_method(rb_cThread, "kill", rb_thread_kill, 0);
|
|
rb_define_method(rb_cThread, "exit", rb_thread_kill, 0);
|
|
rb_define_method(rb_cThread, "value", rb_thread_value, 0);
|
|
rb_define_method(rb_cThread, "status", rb_thread_status, 0);
|
|
rb_define_method(rb_cThread, "join", rb_thread_join_m, -1);
|
|
rb_define_method(rb_cThread, "alive?", rb_thread_alive_p, 0);
|
|
rb_define_method(rb_cThread, "stop?", rb_thread_stop_p, 0);
|
|
rb_define_method(rb_cThread, "raise", rb_thread_raise_m, -1);
|
|
|
|
rb_define_method(rb_cThread, "abort_on_exception", rb_thread_abort_exc, 0);
|
|
rb_define_method(rb_cThread, "abort_on_exception=", rb_thread_abort_exc_set, 1);
|
|
|
|
rb_define_method(rb_cThread, "priority", rb_thread_priority, 0);
|
|
rb_define_method(rb_cThread, "priority=", rb_thread_priority_set, 1);
|
|
rb_define_method(rb_cThread, "safe_level", rb_thread_safe_level, 0);
|
|
|
|
rb_define_method(rb_cThread, "[]", rb_thread_aref, 1);
|
|
rb_define_method(rb_cThread, "[]=", rb_thread_aset, 2);
|
|
rb_define_method(rb_cThread, "key?", rb_thread_key_p, 1);
|
|
rb_define_method(rb_cThread, "keys", rb_thread_keys, 0);
|
|
|
|
rb_define_method(rb_cThread, "inspect", rb_thread_inspect, 0);
|
|
|
|
/* allocate main thread */
|
|
main_thread = rb_thread_alloc(rb_cThread);
|
|
curr_thread = main_thread->prev = main_thread->next = main_thread;
|
|
|
|
rb_cCont = rb_define_class("Continuation", rb_cObject);
|
|
rb_undef_method(CLASS_OF(rb_cCont), "allocate");
|
|
rb_undef_method(CLASS_OF(rb_cCont), "new");
|
|
rb_define_method(rb_cCont, "call", rb_cont_call, -1);
|
|
rb_define_global_function("callcc", rb_callcc, 0);
|
|
|
|
cThGroup = rb_define_class("ThreadGroup", rb_cObject);
|
|
rb_define_singleton_method(cThGroup, "allocate", thgroup_s_alloc, 0);
|
|
rb_define_method(cThGroup, "list", thgroup_list, 0);
|
|
rb_define_method(cThGroup, "add", thgroup_add, 1);
|
|
rb_define_const(cThGroup, "Default", rb_obj_alloc(cThGroup));
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_catch(dmy, tag)
|
|
VALUE dmy, tag;
|
|
{
|
|
int state;
|
|
ID t;
|
|
VALUE val; /* OK */
|
|
|
|
t = rb_to_id(tag);
|
|
PUSH_TAG(t);
|
|
if ((state = EXEC_TAG()) == 0) {
|
|
val = rb_yield_0(tag, 0, 0, 0);
|
|
}
|
|
else if (state == TAG_THROW && t == prot_tag->dst) {
|
|
val = prot_tag->retval;
|
|
state = 0;
|
|
}
|
|
POP_TAG();
|
|
if (state) JUMP_TAG(state);
|
|
|
|
return val;
|
|
}
|
|
|
|
static VALUE
|
|
catch_i(tag)
|
|
ID tag;
|
|
{
|
|
return rb_funcall(Qnil, rb_intern("catch"), 1, ID2SYM(tag));
|
|
}
|
|
|
|
VALUE
|
|
rb_catch(tag, proc, data)
|
|
const char *tag;
|
|
VALUE (*proc)();
|
|
VALUE data;
|
|
{
|
|
return rb_iterate((VALUE(*)_((VALUE)))catch_i, rb_intern(tag), proc, data);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_throw(argc, argv)
|
|
int argc;
|
|
VALUE *argv;
|
|
{
|
|
VALUE tag, value;
|
|
ID t;
|
|
struct tag *tt = prot_tag;
|
|
|
|
rb_scan_args(argc, argv, "11", &tag, &value);
|
|
t = rb_to_id(tag);
|
|
|
|
while (tt) {
|
|
if (tt->tag == t) {
|
|
tt->dst = t;
|
|
break;
|
|
}
|
|
if (tt->tag == PROT_THREAD) {
|
|
rb_raise(rb_eThreadError, "uncaught throw `%s' in thread 0x%x",
|
|
rb_id2name(t),
|
|
curr_thread);
|
|
}
|
|
tt = tt->prev;
|
|
}
|
|
if (!tt) {
|
|
rb_name_error(t, "uncaught throw `%s'", rb_id2name(t));
|
|
}
|
|
return_value(value);
|
|
rb_trap_restore_mask();
|
|
JUMP_TAG(TAG_THROW);
|
|
}
|
|
|
|
void
|
|
rb_throw(tag, val)
|
|
const char *tag;
|
|
VALUE val;
|
|
{
|
|
VALUE argv[2];
|
|
ID t = rb_intern(tag);
|
|
|
|
argv[0] = ID2SYM(t);
|
|
argv[1] = val;
|
|
rb_f_throw(2, argv);
|
|
}
|
|
|
|
static void
|
|
return_check()
|
|
{
|
|
struct tag *tt = prot_tag;
|
|
|
|
while (tt) {
|
|
if (tt->tag == PROT_FUNC) {
|
|
break;
|
|
}
|
|
if (tt->tag == PROT_THREAD) {
|
|
rb_raise(rb_eThreadError, "return from within thread 0x%x",
|
|
curr_thread);
|
|
}
|
|
tt = tt->prev;
|
|
}
|
|
}
|