зеркало из https://github.com/github/ruby.git
109 строки
2.5 KiB
C
109 строки
2.5 KiB
C
/**********************************************************************
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symbol.h -
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$Author$
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created at: Tue Jul 8 15:49:54 JST 2014
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Copyright (C) 2014 Yukihiro Matsumoto
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**********************************************************************/
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#ifndef RUBY_SYMBOL_H
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#define RUBY_SYMBOL_H 1
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#include "id.h"
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#define DYNAMIC_ID_P(id) (!(id&ID_STATIC_SYM)&&id>tLAST_OP_ID)
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#define STATIC_ID2SYM(id) (((VALUE)(id)<<RUBY_SPECIAL_SHIFT)|SYMBOL_FLAG)
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#ifdef __GNUC__
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#define rb_id2sym(id) \
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__extension__(__builtin_constant_p(id) && !DYNAMIC_ID_P(id) ? \
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STATIC_ID2SYM(id) : rb_id2sym(id))
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#endif
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struct RSymbol {
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struct RBasic basic;
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st_index_t hashval;
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VALUE fstr;
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ID id;
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};
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#define RSYMBOL(obj) (R_CAST(RSymbol)(obj))
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#define is_notop_id(id) ((id)>tLAST_OP_ID)
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#define is_local_id(id) (id_type(id)==ID_LOCAL)
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#define is_global_id(id) (id_type(id)==ID_GLOBAL)
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#define is_instance_id(id) (id_type(id)==ID_INSTANCE)
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#define is_attrset_id(id) (id_type(id)==ID_ATTRSET)
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#define is_const_id(id) (id_type(id)==ID_CONST)
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#define is_class_id(id) (id_type(id)==ID_CLASS)
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#define is_junk_id(id) (id_type(id)==ID_JUNK)
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static inline int
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id_type(ID id)
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{
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if (is_notop_id(id)) {
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return (int)(id&ID_SCOPE_MASK);
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}
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else {
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return -1;
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}
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}
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typedef uint32_t rb_id_serial_t;
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static inline rb_id_serial_t
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rb_id_to_serial(ID id)
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{
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if (is_notop_id(id)) {
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return (rb_id_serial_t)(id >> ID_SCOPE_SHIFT);
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}
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else {
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return (rb_id_serial_t)id;
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}
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}
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static inline int
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sym_type(VALUE sym)
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{
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ID id;
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if (STATIC_SYM_P(sym)) {
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id = RSHIFT(sym, RUBY_SPECIAL_SHIFT);
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if (id<=tLAST_OP_ID) {
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return -1;
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}
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}
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else {
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id = RSYMBOL(sym)->id;
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}
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return (int)(id&ID_SCOPE_MASK);
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}
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#define is_local_sym(sym) (sym_type(sym)==ID_LOCAL)
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#define is_global_sym(sym) (sym_type(sym)==ID_GLOBAL)
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#define is_instance_sym(sym) (sym_type(sym)==ID_INSTANCE)
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#define is_attrset_sym(sym) (sym_type(sym)==ID_ATTRSET)
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#define is_const_sym(sym) (sym_type(sym)==ID_CONST)
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#define is_class_sym(sym) (sym_type(sym)==ID_CLASS)
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#define is_junk_sym(sym) (sym_type(sym)==ID_JUNK)
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RUBY_FUNC_EXPORTED const unsigned int ruby_global_name_punct_bits[(0x7e - 0x20 + 31) / 32];
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static inline int
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is_global_name_punct(const int c)
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{
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if (c <= 0x20 || 0x7e < c) return 0;
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return (ruby_global_name_punct_bits[(c - 0x20) / 32] >> (c % 32)) & 1;
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}
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ID rb_intern_cstr_without_pindown(const char *, long, rb_encoding *);
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RUBY_SYMBOL_EXPORT_BEGIN
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size_t rb_sym_immortal_count(void);
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RUBY_SYMBOL_EXPORT_END
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#endif
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