зеркало из https://github.com/github/ruby.git
4608 строки
124 KiB
C
4608 строки
124 KiB
C
/**********************************************************************
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object.c -
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$Author$
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created at: Thu Jul 15 12:01:24 JST 1993
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Copyright (C) 1993-2007 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/internal/config.h"
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#include <ctype.h>
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#include <errno.h>
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#include <float.h>
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#include <math.h>
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#include <stdio.h>
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#include "constant.h"
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#include "id.h"
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#include "internal.h"
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#include "internal/array.h"
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#include "internal/class.h"
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#include "internal/error.h"
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#include "internal/eval.h"
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#include "internal/inits.h"
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#include "internal/numeric.h"
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#include "internal/object.h"
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#include "internal/struct.h"
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#include "internal/string.h"
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#include "internal/symbol.h"
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#include "internal/variable.h"
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#include "variable.h"
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#include "probes.h"
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#include "ruby/encoding.h"
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#include "ruby/st.h"
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#include "ruby/util.h"
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#include "ruby/assert.h"
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#include "builtin.h"
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#include "shape.h"
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/* Flags of RObject
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*
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* 1: ROBJECT_EMBED
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* The object has its instance variables embedded (the array of
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* instance variables directly follow the object, rather than being
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* on a separately allocated buffer).
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* if !SHAPE_IN_BASIC_FLAGS
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* 4-19: SHAPE_FLAG_MASK
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* Shape ID for the object.
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* endif
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*/
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/*!
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* \addtogroup object
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* \{
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*/
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VALUE rb_cBasicObject;
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VALUE rb_mKernel;
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VALUE rb_cObject;
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VALUE rb_cModule;
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VALUE rb_cClass;
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VALUE rb_cRefinement;
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VALUE rb_cNilClass;
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VALUE rb_cTrueClass;
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VALUE rb_cFalseClass;
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static VALUE rb_cNilClass_to_s;
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static VALUE rb_cTrueClass_to_s;
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static VALUE rb_cFalseClass_to_s;
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/*! \cond INTERNAL_MACRO */
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#define id_eq idEq
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#define id_eql idEqlP
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#define id_match idEqTilde
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#define id_inspect idInspect
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#define id_init_copy idInitialize_copy
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#define id_init_clone idInitialize_clone
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#define id_init_dup idInitialize_dup
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#define id_const_missing idConst_missing
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#define id_to_f idTo_f
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#define CLASS_OR_MODULE_P(obj) \
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(!SPECIAL_CONST_P(obj) && \
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(BUILTIN_TYPE(obj) == T_CLASS || BUILTIN_TYPE(obj) == T_MODULE))
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/*! \endcond */
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VALUE
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rb_obj_hide(VALUE obj)
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{
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if (!SPECIAL_CONST_P(obj)) {
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RBASIC_CLEAR_CLASS(obj);
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}
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return obj;
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}
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VALUE
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rb_obj_reveal(VALUE obj, VALUE klass)
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{
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if (!SPECIAL_CONST_P(obj)) {
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RBASIC_SET_CLASS(obj, klass);
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}
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return obj;
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}
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VALUE
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rb_obj_setup(VALUE obj, VALUE klass, VALUE type)
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{
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RBASIC(obj)->flags = type;
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RBASIC_SET_CLASS(obj, klass);
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return obj;
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}
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/*
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* call-seq:
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* true === other -> true or false
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* false === other -> true or false
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* nil === other -> true or false
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*
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* Returns +true+ or +false+.
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*
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* Like Object#==, if +object+ is an instance of Object
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* (and not an instance of one of its many subclasses).
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*
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* This method is commonly overridden by those subclasses,
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* to provide meaningful semantics in +case+ statements.
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*/
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#define case_equal rb_equal
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/* The default implementation of #=== is
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* to call #== with the rb_equal() optimization. */
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VALUE
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rb_equal(VALUE obj1, VALUE obj2)
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{
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VALUE result;
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if (obj1 == obj2) return Qtrue;
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result = rb_equal_opt(obj1, obj2);
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if (UNDEF_P(result)) {
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result = rb_funcall(obj1, id_eq, 1, obj2);
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}
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return RBOOL(RTEST(result));
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}
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int
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rb_eql(VALUE obj1, VALUE obj2)
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{
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VALUE result;
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if (obj1 == obj2) return TRUE;
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result = rb_eql_opt(obj1, obj2);
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if (UNDEF_P(result)) {
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result = rb_funcall(obj1, id_eql, 1, obj2);
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}
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return RTEST(result);
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}
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/**
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* call-seq:
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* obj == other -> true or false
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* obj.equal?(other) -> true or false
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* obj.eql?(other) -> true or false
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*
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* Equality --- At the Object level, #== returns <code>true</code>
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* only if +obj+ and +other+ are the same object. Typically, this
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* method is overridden in descendant classes to provide
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* class-specific meaning.
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*
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* Unlike #==, the #equal? method should never be overridden by
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* subclasses as it is used to determine object identity (that is,
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* <code>a.equal?(b)</code> if and only if <code>a</code> is the same
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* object as <code>b</code>):
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*
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* obj = "a"
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* other = obj.dup
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*
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* obj == other #=> true
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* obj.equal? other #=> false
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* obj.equal? obj #=> true
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*
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* The #eql? method returns <code>true</code> if +obj+ and +other+
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* refer to the same hash key. This is used by Hash to test members
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* for equality. For any pair of objects where #eql? returns +true+,
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* the #hash value of both objects must be equal. So any subclass
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* that overrides #eql? should also override #hash appropriately.
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*
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* For objects of class Object, #eql? is synonymous
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* with #==. Subclasses normally continue this tradition by aliasing
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* #eql? to their overridden #== method, but there are exceptions.
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* Numeric types, for example, perform type conversion across #==,
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* but not across #eql?, so:
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*
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* 1 == 1.0 #=> true
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* 1.eql? 1.0 #=> false
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*--
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* \private
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*++
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*/
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VALUE
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rb_obj_equal(VALUE obj1, VALUE obj2)
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{
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return RBOOL(obj1 == obj2);
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}
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VALUE rb_obj_hash(VALUE obj);
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/**
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* call-seq:
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* !obj -> true or false
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*
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* Boolean negate.
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*--
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* \private
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*++
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*/
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VALUE
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rb_obj_not(VALUE obj)
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{
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return RBOOL(!RTEST(obj));
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}
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/**
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* call-seq:
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* obj != other -> true or false
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*
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* Returns true if two objects are not-equal, otherwise false.
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*--
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* \private
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*++
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*/
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VALUE
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rb_obj_not_equal(VALUE obj1, VALUE obj2)
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{
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VALUE result = rb_funcall(obj1, id_eq, 1, obj2);
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return rb_obj_not(result);
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}
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VALUE
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rb_class_real(VALUE cl)
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{
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while (cl &&
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((RBASIC(cl)->flags & FL_SINGLETON) || BUILTIN_TYPE(cl) == T_ICLASS)) {
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cl = RCLASS_SUPER(cl);
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}
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return cl;
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}
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VALUE
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rb_obj_class(VALUE obj)
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{
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return rb_class_real(CLASS_OF(obj));
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}
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/*
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* call-seq:
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* obj.singleton_class -> class
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*
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* Returns the singleton class of <i>obj</i>. This method creates
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* a new singleton class if <i>obj</i> does not have one.
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*
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* If <i>obj</i> is <code>nil</code>, <code>true</code>, or
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* <code>false</code>, it returns NilClass, TrueClass, or FalseClass,
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* respectively.
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* If <i>obj</i> is an Integer, a Float or a Symbol, it raises a TypeError.
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*
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* Object.new.singleton_class #=> #<Class:#<Object:0xb7ce1e24>>
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* String.singleton_class #=> #<Class:String>
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* nil.singleton_class #=> NilClass
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*/
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static VALUE
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rb_obj_singleton_class(VALUE obj)
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{
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return rb_singleton_class(obj);
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}
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/*! \private */
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void
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rb_obj_copy_ivar(VALUE dest, VALUE obj)
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{
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RUBY_ASSERT(!RB_TYPE_P(obj, T_CLASS) && !RB_TYPE_P(obj, T_MODULE));
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RUBY_ASSERT(BUILTIN_TYPE(dest) == BUILTIN_TYPE(obj));
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rb_shape_t * src_shape = rb_shape_get_shape(obj);
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if (rb_shape_id(src_shape) == OBJ_TOO_COMPLEX_SHAPE_ID) {
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st_table * table = rb_st_init_numtable_with_size(rb_st_table_size(ROBJECT_IV_HASH(obj)));
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rb_ivar_foreach(obj, rb_obj_evacuate_ivs_to_hash_table, (st_data_t)table);
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rb_shape_set_too_complex(dest);
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ROBJECT(dest)->as.heap.ivptr = (VALUE *)table;
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return;
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}
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uint32_t src_num_ivs = RBASIC_IV_COUNT(obj);
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rb_shape_t * shape_to_set_on_dest = src_shape;
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VALUE * src_buf;
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VALUE * dest_buf;
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if (!src_num_ivs) {
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return;
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}
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// The copy should be mutable, so we don't want the frozen shape
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if (rb_shape_frozen_shape_p(src_shape)) {
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shape_to_set_on_dest = rb_shape_get_parent(src_shape);
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}
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src_buf = ROBJECT_IVPTR(obj);
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dest_buf = ROBJECT_IVPTR(dest);
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rb_shape_t * initial_shape = rb_shape_get_shape(dest);
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if (initial_shape->size_pool_index != src_shape->size_pool_index) {
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RUBY_ASSERT(initial_shape->type == SHAPE_T_OBJECT);
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shape_to_set_on_dest = rb_shape_rebuild_shape(initial_shape, src_shape);
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}
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RUBY_ASSERT(src_num_ivs <= shape_to_set_on_dest->capacity);
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if (initial_shape->capacity < shape_to_set_on_dest->capacity) {
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rb_ensure_iv_list_size(dest, initial_shape->capacity, shape_to_set_on_dest->capacity);
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dest_buf = ROBJECT_IVPTR(dest);
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}
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MEMCPY(dest_buf, src_buf, VALUE, src_num_ivs);
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// Fire write barriers
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for (uint32_t i = 0; i < src_num_ivs; i++) {
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RB_OBJ_WRITTEN(dest, Qundef, dest_buf[i]);
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}
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rb_shape_set_shape(dest, shape_to_set_on_dest);
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}
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static void
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init_copy(VALUE dest, VALUE obj)
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{
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if (OBJ_FROZEN(dest)) {
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rb_raise(rb_eTypeError, "[bug] frozen object (%s) allocated", rb_obj_classname(dest));
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}
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RBASIC(dest)->flags &= ~(T_MASK|FL_EXIVAR);
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// Copies the shape id from obj to dest
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RBASIC(dest)->flags |= RBASIC(obj)->flags & (T_MASK|FL_EXIVAR);
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rb_copy_wb_protected_attribute(dest, obj);
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rb_copy_generic_ivar(dest, obj);
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rb_gc_copy_finalizer(dest, obj);
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if (RB_TYPE_P(obj, T_OBJECT)) {
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rb_obj_copy_ivar(dest, obj);
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}
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}
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static VALUE immutable_obj_clone(VALUE obj, VALUE kwfreeze);
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static VALUE mutable_obj_clone(VALUE obj, VALUE kwfreeze);
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PUREFUNC(static inline int special_object_p(VALUE obj)); /*!< \private */
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static inline int
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special_object_p(VALUE obj)
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{
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if (SPECIAL_CONST_P(obj)) return TRUE;
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switch (BUILTIN_TYPE(obj)) {
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case T_BIGNUM:
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case T_FLOAT:
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case T_SYMBOL:
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case T_RATIONAL:
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case T_COMPLEX:
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/* not a comprehensive list */
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return TRUE;
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default:
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return FALSE;
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}
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}
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static VALUE
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obj_freeze_opt(VALUE freeze)
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{
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switch (freeze) {
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case Qfalse:
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case Qtrue:
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case Qnil:
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break;
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default:
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rb_raise(rb_eArgError, "unexpected value for freeze: %"PRIsVALUE, rb_obj_class(freeze));
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}
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return freeze;
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}
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static VALUE
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rb_obj_clone2(rb_execution_context_t *ec, VALUE obj, VALUE freeze)
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{
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VALUE kwfreeze = obj_freeze_opt(freeze);
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if (!special_object_p(obj))
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return mutable_obj_clone(obj, kwfreeze);
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return immutable_obj_clone(obj, kwfreeze);
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}
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/*! \private */
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VALUE
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rb_immutable_obj_clone(int argc, VALUE *argv, VALUE obj)
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{
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VALUE kwfreeze = rb_get_freeze_opt(argc, argv);
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return immutable_obj_clone(obj, kwfreeze);
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}
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VALUE
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rb_get_freeze_opt(int argc, VALUE *argv)
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{
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static ID keyword_ids[1];
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VALUE opt;
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VALUE kwfreeze = Qnil;
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if (!keyword_ids[0]) {
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CONST_ID(keyword_ids[0], "freeze");
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}
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rb_scan_args(argc, argv, "0:", &opt);
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if (!NIL_P(opt)) {
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rb_get_kwargs(opt, keyword_ids, 0, 1, &kwfreeze);
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if (!UNDEF_P(kwfreeze))
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kwfreeze = obj_freeze_opt(kwfreeze);
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}
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return kwfreeze;
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}
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static VALUE
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immutable_obj_clone(VALUE obj, VALUE kwfreeze)
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{
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if (kwfreeze == Qfalse)
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rb_raise(rb_eArgError, "can't unfreeze %"PRIsVALUE,
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rb_obj_class(obj));
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return obj;
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}
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static VALUE
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mutable_obj_clone(VALUE obj, VALUE kwfreeze)
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{
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VALUE clone, singleton;
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VALUE argv[2];
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clone = rb_obj_alloc(rb_obj_class(obj));
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singleton = rb_singleton_class_clone_and_attach(obj, clone);
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RBASIC_SET_CLASS(clone, singleton);
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if (FL_TEST(singleton, FL_SINGLETON)) {
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rb_singleton_class_attached(singleton, clone);
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}
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init_copy(clone, obj);
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switch (kwfreeze) {
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case Qnil:
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rb_funcall(clone, id_init_clone, 1, obj);
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RBASIC(clone)->flags |= RBASIC(obj)->flags & FL_FREEZE;
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if (RB_OBJ_FROZEN(obj)) {
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rb_shape_transition_shape_frozen(clone);
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}
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break;
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case Qtrue: {
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static VALUE freeze_true_hash;
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if (!freeze_true_hash) {
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freeze_true_hash = rb_hash_new();
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rb_gc_register_mark_object(freeze_true_hash);
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rb_hash_aset(freeze_true_hash, ID2SYM(idFreeze), Qtrue);
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rb_obj_freeze(freeze_true_hash);
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}
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argv[0] = obj;
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argv[1] = freeze_true_hash;
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rb_funcallv_kw(clone, id_init_clone, 2, argv, RB_PASS_KEYWORDS);
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RBASIC(clone)->flags |= FL_FREEZE;
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rb_shape_transition_shape_frozen(clone);
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break;
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}
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case Qfalse: {
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static VALUE freeze_false_hash;
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if (!freeze_false_hash) {
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freeze_false_hash = rb_hash_new();
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rb_gc_register_mark_object(freeze_false_hash);
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rb_hash_aset(freeze_false_hash, ID2SYM(idFreeze), Qfalse);
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rb_obj_freeze(freeze_false_hash);
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}
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argv[0] = obj;
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argv[1] = freeze_false_hash;
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rb_funcallv_kw(clone, id_init_clone, 2, argv, RB_PASS_KEYWORDS);
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break;
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}
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default:
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rb_bug("invalid kwfreeze passed to mutable_obj_clone");
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}
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return clone;
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}
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VALUE
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rb_obj_clone(VALUE obj)
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{
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if (special_object_p(obj)) return obj;
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return mutable_obj_clone(obj, Qnil);
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}
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/*
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* call-seq:
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* obj.dup -> an_object
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*
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* Produces a shallow copy of <i>obj</i>---the instance variables of
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* <i>obj</i> are copied, but not the objects they reference.
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*
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* This method may have class-specific behavior. If so, that
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* behavior will be documented under the #+initialize_copy+ method of
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* the class.
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*
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* === on dup vs clone
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*
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* In general, #clone and #dup may have different semantics in
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* descendant classes. While #clone is used to duplicate an object,
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* including its internal state, #dup typically uses the class of the
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* descendant object to create the new instance.
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*
|
|
* When using #dup, any modules that the object has been extended with will not
|
|
* be copied.
|
|
*
|
|
* class Klass
|
|
* attr_accessor :str
|
|
* end
|
|
*
|
|
* module Foo
|
|
* def foo; 'foo'; end
|
|
* end
|
|
*
|
|
* s1 = Klass.new #=> #<Klass:0x401b3a38>
|
|
* s1.extend(Foo) #=> #<Klass:0x401b3a38>
|
|
* s1.foo #=> "foo"
|
|
*
|
|
* s2 = s1.clone #=> #<Klass:0x401be280>
|
|
* s2.foo #=> "foo"
|
|
*
|
|
* s3 = s1.dup #=> #<Klass:0x401c1084>
|
|
* s3.foo #=> NoMethodError: undefined method `foo' for #<Klass:0x401c1084>
|
|
*/
|
|
VALUE
|
|
rb_obj_dup(VALUE obj)
|
|
{
|
|
VALUE dup;
|
|
|
|
if (special_object_p(obj)) {
|
|
return obj;
|
|
}
|
|
dup = rb_obj_alloc(rb_obj_class(obj));
|
|
init_copy(dup, obj);
|
|
rb_funcall(dup, id_init_dup, 1, obj);
|
|
|
|
return dup;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.itself -> obj
|
|
*
|
|
* Returns the receiver.
|
|
*
|
|
* string = "my string"
|
|
* string.itself.object_id == string.object_id #=> true
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_itself(VALUE obj)
|
|
{
|
|
return obj;
|
|
}
|
|
|
|
VALUE
|
|
rb_obj_size(VALUE self, VALUE args, VALUE obj)
|
|
{
|
|
return LONG2FIX(1);
|
|
}
|
|
|
|
/**
|
|
* :nodoc:
|
|
*--
|
|
* Default implementation of \c #initialize_copy
|
|
* \param[in,out] obj the receiver being initialized
|
|
* \param[in] orig the object to be copied from.
|
|
*++
|
|
*/
|
|
VALUE
|
|
rb_obj_init_copy(VALUE obj, VALUE orig)
|
|
{
|
|
if (obj == orig) return obj;
|
|
rb_check_frozen(obj);
|
|
if (TYPE(obj) != TYPE(orig) || rb_obj_class(obj) != rb_obj_class(orig)) {
|
|
rb_raise(rb_eTypeError, "initialize_copy should take same class object");
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
/*!
|
|
* :nodoc:
|
|
*--
|
|
* Default implementation of \c #initialize_dup
|
|
*
|
|
* \param[in,out] obj the receiver being initialized
|
|
* \param[in] orig the object to be dup from.
|
|
*++
|
|
**/
|
|
VALUE
|
|
rb_obj_init_dup_clone(VALUE obj, VALUE orig)
|
|
{
|
|
rb_funcall(obj, id_init_copy, 1, orig);
|
|
return obj;
|
|
}
|
|
|
|
/*!
|
|
* :nodoc:
|
|
*--
|
|
* Default implementation of \c #initialize_clone
|
|
*
|
|
* \param[in] The number of arguments
|
|
* \param[in] The array of arguments
|
|
* \param[in] obj the receiver being initialized
|
|
*++
|
|
**/
|
|
static VALUE
|
|
rb_obj_init_clone(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE orig, opts;
|
|
if (rb_scan_args(argc, argv, "1:", &orig, &opts) < argc) {
|
|
/* Ignore a freeze keyword */
|
|
rb_get_freeze_opt(1, &opts);
|
|
}
|
|
rb_funcall(obj, id_init_copy, 1, orig);
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.to_s -> string
|
|
*
|
|
* Returns a string representing <i>obj</i>. The default #to_s prints
|
|
* the object's class and an encoding of the object id. As a special
|
|
* case, the top-level object that is the initial execution context
|
|
* of Ruby programs returns ``main''.
|
|
*
|
|
*/
|
|
VALUE
|
|
rb_any_to_s(VALUE obj)
|
|
{
|
|
VALUE str;
|
|
VALUE cname = rb_class_name(CLASS_OF(obj));
|
|
|
|
str = rb_sprintf("#<%"PRIsVALUE":%p>", cname, (void*)obj);
|
|
|
|
return str;
|
|
}
|
|
|
|
VALUE
|
|
rb_inspect(VALUE obj)
|
|
{
|
|
VALUE str = rb_obj_as_string(rb_funcallv(obj, id_inspect, 0, 0));
|
|
|
|
rb_encoding *enc = rb_default_internal_encoding();
|
|
if (enc == NULL) enc = rb_default_external_encoding();
|
|
if (!rb_enc_asciicompat(enc)) {
|
|
if (!rb_enc_str_asciionly_p(str))
|
|
return rb_str_escape(str);
|
|
return str;
|
|
}
|
|
if (rb_enc_get(str) != enc && !rb_enc_str_asciionly_p(str))
|
|
return rb_str_escape(str);
|
|
return str;
|
|
}
|
|
|
|
static int
|
|
inspect_i(st_data_t k, st_data_t v, st_data_t a)
|
|
{
|
|
ID id = (ID)k;
|
|
VALUE value = (VALUE)v;
|
|
VALUE str = (VALUE)a;
|
|
|
|
/* need not to show internal data */
|
|
if (CLASS_OF(value) == 0) return ST_CONTINUE;
|
|
if (!rb_is_instance_id(id)) return ST_CONTINUE;
|
|
if (RSTRING_PTR(str)[0] == '-') { /* first element */
|
|
RSTRING_PTR(str)[0] = '#';
|
|
rb_str_cat2(str, " ");
|
|
}
|
|
else {
|
|
rb_str_cat2(str, ", ");
|
|
}
|
|
rb_str_catf(str, "%"PRIsVALUE"=", rb_id2str(id));
|
|
rb_str_buf_append(str, rb_inspect(value));
|
|
|
|
return ST_CONTINUE;
|
|
}
|
|
|
|
static VALUE
|
|
inspect_obj(VALUE obj, VALUE str, int recur)
|
|
{
|
|
if (recur) {
|
|
rb_str_cat2(str, " ...");
|
|
}
|
|
else {
|
|
rb_ivar_foreach(obj, inspect_i, str);
|
|
}
|
|
rb_str_cat2(str, ">");
|
|
RSTRING_PTR(str)[0] = '#';
|
|
|
|
return str;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.inspect -> string
|
|
*
|
|
* Returns a string containing a human-readable representation of <i>obj</i>.
|
|
* The default #inspect shows the object's class name, an encoding of
|
|
* its memory address, and a list of the instance variables and their
|
|
* values (by calling #inspect on each of them). User defined classes
|
|
* should override this method to provide a better representation of
|
|
* <i>obj</i>. When overriding this method, it should return a string
|
|
* whose encoding is compatible with the default external encoding.
|
|
*
|
|
* [ 1, 2, 3..4, 'five' ].inspect #=> "[1, 2, 3..4, \"five\"]"
|
|
* Time.new.inspect #=> "2008-03-08 19:43:39 +0900"
|
|
*
|
|
* class Foo
|
|
* end
|
|
* Foo.new.inspect #=> "#<Foo:0x0300c868>"
|
|
*
|
|
* class Bar
|
|
* def initialize
|
|
* @bar = 1
|
|
* end
|
|
* end
|
|
* Bar.new.inspect #=> "#<Bar:0x0300c868 @bar=1>"
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_inspect(VALUE obj)
|
|
{
|
|
if (rb_ivar_count(obj) > 0) {
|
|
VALUE str;
|
|
VALUE c = rb_class_name(CLASS_OF(obj));
|
|
|
|
str = rb_sprintf("-<%"PRIsVALUE":%p", c, (void*)obj);
|
|
return rb_exec_recursive(inspect_obj, obj, str);
|
|
}
|
|
else {
|
|
return rb_any_to_s(obj);
|
|
}
|
|
}
|
|
|
|
static VALUE
|
|
class_or_module_required(VALUE c)
|
|
{
|
|
switch (OBJ_BUILTIN_TYPE(c)) {
|
|
case T_MODULE:
|
|
case T_CLASS:
|
|
case T_ICLASS:
|
|
break;
|
|
|
|
default:
|
|
rb_raise(rb_eTypeError, "class or module required");
|
|
}
|
|
return c;
|
|
}
|
|
|
|
static VALUE class_search_ancestor(VALUE cl, VALUE c);
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.instance_of?(class) -> true or false
|
|
*
|
|
* Returns <code>true</code> if <i>obj</i> is an instance of the given
|
|
* class. See also Object#kind_of?.
|
|
*
|
|
* class A; end
|
|
* class B < A; end
|
|
* class C < B; end
|
|
*
|
|
* b = B.new
|
|
* b.instance_of? A #=> false
|
|
* b.instance_of? B #=> true
|
|
* b.instance_of? C #=> false
|
|
*/
|
|
|
|
VALUE
|
|
rb_obj_is_instance_of(VALUE obj, VALUE c)
|
|
{
|
|
c = class_or_module_required(c);
|
|
return RBOOL(rb_obj_class(obj) == c);
|
|
}
|
|
|
|
// Returns whether c is a proper (c != cl) subclass of cl
|
|
// Both c and cl must be T_CLASS
|
|
static VALUE
|
|
class_search_class_ancestor(VALUE cl, VALUE c)
|
|
{
|
|
RUBY_ASSERT(RB_TYPE_P(c, T_CLASS));
|
|
RUBY_ASSERT(RB_TYPE_P(cl, T_CLASS));
|
|
|
|
size_t c_depth = RCLASS_SUPERCLASS_DEPTH(c);
|
|
size_t cl_depth = RCLASS_SUPERCLASS_DEPTH(cl);
|
|
VALUE *classes = RCLASS_SUPERCLASSES(cl);
|
|
|
|
// If c's inheritance chain is longer, it cannot be an ancestor
|
|
// We are checking for a proper subclass so don't check if they are equal
|
|
if (cl_depth <= c_depth)
|
|
return Qfalse;
|
|
|
|
// Otherwise check that c is in cl's inheritance chain
|
|
return RBOOL(classes[c_depth] == c);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.is_a?(class) -> true or false
|
|
* obj.kind_of?(class) -> true or false
|
|
*
|
|
* Returns <code>true</code> if <i>class</i> is the class of
|
|
* <i>obj</i>, or if <i>class</i> is one of the superclasses of
|
|
* <i>obj</i> or modules included in <i>obj</i>.
|
|
*
|
|
* module M; end
|
|
* class A
|
|
* include M
|
|
* end
|
|
* class B < A; end
|
|
* class C < B; end
|
|
*
|
|
* b = B.new
|
|
* b.is_a? A #=> true
|
|
* b.is_a? B #=> true
|
|
* b.is_a? C #=> false
|
|
* b.is_a? M #=> true
|
|
*
|
|
* b.kind_of? A #=> true
|
|
* b.kind_of? B #=> true
|
|
* b.kind_of? C #=> false
|
|
* b.kind_of? M #=> true
|
|
*/
|
|
|
|
VALUE
|
|
rb_obj_is_kind_of(VALUE obj, VALUE c)
|
|
{
|
|
VALUE cl = CLASS_OF(obj);
|
|
|
|
RUBY_ASSERT(RB_TYPE_P(cl, T_CLASS));
|
|
|
|
// Fastest path: If the object's class is an exact match we know `c` is a
|
|
// class without checking type and can return immediately.
|
|
if (cl == c) return Qtrue;
|
|
|
|
// Note: YJIT needs this function to never allocate and never raise when
|
|
// `c` is a class or a module.
|
|
|
|
if (LIKELY(RB_TYPE_P(c, T_CLASS))) {
|
|
// Fast path: Both are T_CLASS
|
|
return class_search_class_ancestor(cl, c);
|
|
}
|
|
else if (RB_TYPE_P(c, T_ICLASS)) {
|
|
// First check if we inherit the includer
|
|
// If we do we can return true immediately
|
|
VALUE includer = RCLASS_INCLUDER(c);
|
|
if (cl == includer) return Qtrue;
|
|
|
|
// Usually includer is a T_CLASS here, except when including into an
|
|
// already included Module.
|
|
// If it is a class, attempt the fast class-to-class check and return
|
|
// true if there is a match.
|
|
if (RB_TYPE_P(includer, T_CLASS) && class_search_class_ancestor(cl, includer))
|
|
return Qtrue;
|
|
|
|
// We don't include the ICLASS directly, so must check if we inherit
|
|
// the module via another include
|
|
return RBOOL(class_search_ancestor(cl, RCLASS_ORIGIN(c)));
|
|
}
|
|
else if (RB_TYPE_P(c, T_MODULE)) {
|
|
// Slow path: check each ancestor in the linked list and its method table
|
|
return RBOOL(class_search_ancestor(cl, RCLASS_ORIGIN(c)));
|
|
}
|
|
else {
|
|
rb_raise(rb_eTypeError, "class or module required");
|
|
UNREACHABLE_RETURN(Qfalse);
|
|
}
|
|
}
|
|
|
|
|
|
static VALUE
|
|
class_search_ancestor(VALUE cl, VALUE c)
|
|
{
|
|
while (cl) {
|
|
if (cl == c || RCLASS_M_TBL(cl) == RCLASS_M_TBL(c))
|
|
return cl;
|
|
cl = RCLASS_SUPER(cl);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*! \private */
|
|
VALUE
|
|
rb_class_search_ancestor(VALUE cl, VALUE c)
|
|
{
|
|
cl = class_or_module_required(cl);
|
|
c = class_or_module_required(c);
|
|
return class_search_ancestor(cl, RCLASS_ORIGIN(c));
|
|
}
|
|
|
|
|
|
/*
|
|
* Document-method: inherited
|
|
*
|
|
* call-seq:
|
|
* inherited(subclass)
|
|
*
|
|
* Callback invoked whenever a subclass of the current class is created.
|
|
*
|
|
* Example:
|
|
*
|
|
* class Foo
|
|
* def self.inherited(subclass)
|
|
* puts "New subclass: #{subclass}"
|
|
* end
|
|
* end
|
|
*
|
|
* class Bar < Foo
|
|
* end
|
|
*
|
|
* class Baz < Bar
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* New subclass: Bar
|
|
* New subclass: Baz
|
|
*/
|
|
#define rb_obj_class_inherited rb_obj_dummy1
|
|
|
|
/* Document-method: method_added
|
|
*
|
|
* call-seq:
|
|
* method_added(method_name)
|
|
*
|
|
* Invoked as a callback whenever an instance method is added to the
|
|
* receiver.
|
|
*
|
|
* module Chatty
|
|
* def self.method_added(method_name)
|
|
* puts "Adding #{method_name.inspect}"
|
|
* end
|
|
* def self.some_class_method() end
|
|
* def some_instance_method() end
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Adding :some_instance_method
|
|
*
|
|
*/
|
|
#define rb_obj_mod_method_added rb_obj_dummy1
|
|
|
|
/* Document-method: method_removed
|
|
*
|
|
* call-seq:
|
|
* method_removed(method_name)
|
|
*
|
|
* Invoked as a callback whenever an instance method is removed from the
|
|
* receiver.
|
|
*
|
|
* module Chatty
|
|
* def self.method_removed(method_name)
|
|
* puts "Removing #{method_name.inspect}"
|
|
* end
|
|
* def self.some_class_method() end
|
|
* def some_instance_method() end
|
|
* class << self
|
|
* remove_method :some_class_method
|
|
* end
|
|
* remove_method :some_instance_method
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Removing :some_instance_method
|
|
*
|
|
*/
|
|
#define rb_obj_mod_method_removed rb_obj_dummy1
|
|
|
|
/* Document-method: method_undefined
|
|
*
|
|
* call-seq:
|
|
* method_undefined(method_name)
|
|
*
|
|
* Invoked as a callback whenever an instance method is undefined from the
|
|
* receiver.
|
|
*
|
|
* module Chatty
|
|
* def self.method_undefined(method_name)
|
|
* puts "Undefining #{method_name.inspect}"
|
|
* end
|
|
* def self.some_class_method() end
|
|
* def some_instance_method() end
|
|
* class << self
|
|
* undef_method :some_class_method
|
|
* end
|
|
* undef_method :some_instance_method
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Undefining :some_instance_method
|
|
*
|
|
*/
|
|
#define rb_obj_mod_method_undefined rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: singleton_method_added
|
|
*
|
|
* call-seq:
|
|
* singleton_method_added(symbol)
|
|
*
|
|
* Invoked as a callback whenever a singleton method is added to the
|
|
* receiver.
|
|
*
|
|
* module Chatty
|
|
* def Chatty.singleton_method_added(id)
|
|
* puts "Adding #{id.id2name}"
|
|
* end
|
|
* def self.one() end
|
|
* def two() end
|
|
* def Chatty.three() end
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Adding singleton_method_added
|
|
* Adding one
|
|
* Adding three
|
|
*
|
|
*/
|
|
#define rb_obj_singleton_method_added rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: singleton_method_removed
|
|
*
|
|
* call-seq:
|
|
* singleton_method_removed(symbol)
|
|
*
|
|
* Invoked as a callback whenever a singleton method is removed from
|
|
* the receiver.
|
|
*
|
|
* module Chatty
|
|
* def Chatty.singleton_method_removed(id)
|
|
* puts "Removing #{id.id2name}"
|
|
* end
|
|
* def self.one() end
|
|
* def two() end
|
|
* def Chatty.three() end
|
|
* class << self
|
|
* remove_method :three
|
|
* remove_method :one
|
|
* end
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Removing three
|
|
* Removing one
|
|
*/
|
|
#define rb_obj_singleton_method_removed rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: singleton_method_undefined
|
|
*
|
|
* call-seq:
|
|
* singleton_method_undefined(symbol)
|
|
*
|
|
* Invoked as a callback whenever a singleton method is undefined in
|
|
* the receiver.
|
|
*
|
|
* module Chatty
|
|
* def Chatty.singleton_method_undefined(id)
|
|
* puts "Undefining #{id.id2name}"
|
|
* end
|
|
* def Chatty.one() end
|
|
* class << self
|
|
* undef_method(:one)
|
|
* end
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Undefining one
|
|
*/
|
|
#define rb_obj_singleton_method_undefined rb_obj_dummy1
|
|
|
|
/* Document-method: const_added
|
|
*
|
|
* call-seq:
|
|
* const_added(const_name)
|
|
*
|
|
* Invoked as a callback whenever a constant is assigned on the receiver
|
|
*
|
|
* module Chatty
|
|
* def self.const_added(const_name)
|
|
* super
|
|
* puts "Added #{const_name.inspect}"
|
|
* end
|
|
* FOO = 1
|
|
* end
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Added :FOO
|
|
*
|
|
*/
|
|
#define rb_obj_mod_const_added rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: extended
|
|
*
|
|
* call-seq:
|
|
* extended(othermod)
|
|
*
|
|
* The equivalent of <tt>included</tt>, but for extended modules.
|
|
*
|
|
* module A
|
|
* def self.extended(mod)
|
|
* puts "#{self} extended in #{mod}"
|
|
* end
|
|
* end
|
|
* module Enumerable
|
|
* extend A
|
|
* end
|
|
* # => prints "A extended in Enumerable"
|
|
*/
|
|
#define rb_obj_mod_extended rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: included
|
|
*
|
|
* call-seq:
|
|
* included(othermod)
|
|
*
|
|
* Callback invoked whenever the receiver is included in another
|
|
* module or class. This should be used in preference to
|
|
* <tt>Module.append_features</tt> if your code wants to perform some
|
|
* action when a module is included in another.
|
|
*
|
|
* module A
|
|
* def A.included(mod)
|
|
* puts "#{self} included in #{mod}"
|
|
* end
|
|
* end
|
|
* module Enumerable
|
|
* include A
|
|
* end
|
|
* # => prints "A included in Enumerable"
|
|
*/
|
|
#define rb_obj_mod_included rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: prepended
|
|
*
|
|
* call-seq:
|
|
* prepended(othermod)
|
|
*
|
|
* The equivalent of <tt>included</tt>, but for prepended modules.
|
|
*
|
|
* module A
|
|
* def self.prepended(mod)
|
|
* puts "#{self} prepended to #{mod}"
|
|
* end
|
|
* end
|
|
* module Enumerable
|
|
* prepend A
|
|
* end
|
|
* # => prints "A prepended to Enumerable"
|
|
*/
|
|
#define rb_obj_mod_prepended rb_obj_dummy1
|
|
|
|
/*
|
|
* Document-method: initialize
|
|
*
|
|
* call-seq:
|
|
* BasicObject.new
|
|
*
|
|
* Returns a new BasicObject.
|
|
*/
|
|
#define rb_obj_initialize rb_obj_dummy0
|
|
|
|
/*
|
|
* Not documented
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_dummy(void)
|
|
{
|
|
return Qnil;
|
|
}
|
|
|
|
static VALUE
|
|
rb_obj_dummy0(VALUE _)
|
|
{
|
|
return rb_obj_dummy();
|
|
}
|
|
|
|
static VALUE
|
|
rb_obj_dummy1(VALUE _x, VALUE _y)
|
|
{
|
|
return rb_obj_dummy();
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.freeze -> obj
|
|
*
|
|
* Prevents further modifications to <i>obj</i>. A
|
|
* FrozenError will be raised if modification is attempted.
|
|
* There is no way to unfreeze a frozen object. See also
|
|
* Object#frozen?.
|
|
*
|
|
* This method returns self.
|
|
*
|
|
* a = [ "a", "b", "c" ]
|
|
* a.freeze
|
|
* a << "z"
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* prog.rb:3:in `<<': can't modify frozen Array (FrozenError)
|
|
* from prog.rb:3
|
|
*
|
|
* Objects of the following classes are always frozen: Integer,
|
|
* Float, Symbol.
|
|
*/
|
|
|
|
VALUE
|
|
rb_obj_freeze(VALUE obj)
|
|
{
|
|
if (!OBJ_FROZEN(obj)) {
|
|
OBJ_FREEZE(obj);
|
|
if (SPECIAL_CONST_P(obj)) {
|
|
rb_bug("special consts should be frozen.");
|
|
}
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
VALUE
|
|
rb_obj_frozen_p(VALUE obj)
|
|
{
|
|
return RBOOL(OBJ_FROZEN(obj));
|
|
}
|
|
|
|
|
|
/*
|
|
* Document-class: NilClass
|
|
*
|
|
* The class of the singleton object +nil+.
|
|
*
|
|
* Several of its methods act as operators:
|
|
*
|
|
* - #&
|
|
* - #|
|
|
* - #===
|
|
* - #=~
|
|
* - #^
|
|
*
|
|
* Others act as converters, carrying the concept of _nullity_
|
|
* to other classes:
|
|
*
|
|
* - #rationalize
|
|
* - #to_a
|
|
* - #to_c
|
|
* - #to_h
|
|
* - #to_r
|
|
* - #to_s
|
|
*
|
|
* Another method provides inspection:
|
|
*
|
|
* - #inspect
|
|
*
|
|
* Finally, there is this query method:
|
|
*
|
|
* - #nil?
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* call-seq:
|
|
* to_s -> ''
|
|
*
|
|
* Returns an empty String:
|
|
*
|
|
* nil.to_s # => ""
|
|
*
|
|
*/
|
|
|
|
VALUE
|
|
rb_nil_to_s(VALUE obj)
|
|
{
|
|
return rb_cNilClass_to_s;
|
|
}
|
|
|
|
/*
|
|
* Document-method: to_a
|
|
*
|
|
* call-seq:
|
|
* to_a -> []
|
|
*
|
|
* Returns an empty Array.
|
|
*
|
|
* nil.to_a # => []
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
nil_to_a(VALUE obj)
|
|
{
|
|
return rb_ary_new2(0);
|
|
}
|
|
|
|
/*
|
|
* Document-method: to_h
|
|
*
|
|
* call-seq:
|
|
* to_h -> {}
|
|
*
|
|
* Returns an empty Hash.
|
|
*
|
|
* nil.to_h #=> {}
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
nil_to_h(VALUE obj)
|
|
{
|
|
return rb_hash_new();
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* inspect -> 'nil'
|
|
*
|
|
* Returns string <tt>'nil'</tt>:
|
|
*
|
|
* nil.inspect # => "nil"
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
nil_inspect(VALUE obj)
|
|
{
|
|
return rb_usascii_str_new2("nil");
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* nil =~ object -> nil
|
|
*
|
|
* Returns +nil+.
|
|
*
|
|
* This method makes it useful to write:
|
|
*
|
|
* while gets =~ /re/
|
|
* # ...
|
|
* end
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
nil_match(VALUE obj1, VALUE obj2)
|
|
{
|
|
return Qnil;
|
|
}
|
|
|
|
/*
|
|
* Document-class: TrueClass
|
|
*
|
|
* The class of the singleton object +true+.
|
|
*
|
|
* Several of its methods act as operators:
|
|
*
|
|
* - #&
|
|
* - #|
|
|
* - #===
|
|
* - #^
|
|
*
|
|
* One other method:
|
|
*
|
|
* - #to_s and its alias #inspect.
|
|
*
|
|
*/
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* true.to_s -> 'true'
|
|
*
|
|
* Returns string <tt>'true'</tt>:
|
|
*
|
|
* true.to_s # => "true"
|
|
*
|
|
* TrueClass#inspect is an alias for TrueClass#to_s.
|
|
*
|
|
*/
|
|
|
|
VALUE
|
|
rb_true_to_s(VALUE obj)
|
|
{
|
|
return rb_cTrueClass_to_s;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* true & object -> true or false
|
|
*
|
|
* Returns +false+ if +object+ is +false+ or +nil+, +true+ otherwise:
|
|
*
|
|
* true & Object.new # => true
|
|
* true & false # => false
|
|
* true & nil # => false
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
true_and(VALUE obj, VALUE obj2)
|
|
{
|
|
return RBOOL(RTEST(obj2));
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* true | object -> true
|
|
*
|
|
* Returns +true+:
|
|
*
|
|
* true | Object.new # => true
|
|
* true | false # => true
|
|
* true | nil # => true
|
|
*
|
|
* Argument +object+ is evaluated.
|
|
* This is different from +true+ with the short-circuit operator,
|
|
* whose operand is evaluated only if necessary:
|
|
*
|
|
* true | raise # => Raises RuntimeError.
|
|
* true || raise # => true
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
true_or(VALUE obj, VALUE obj2)
|
|
{
|
|
return Qtrue;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* true ^ object -> !object
|
|
*
|
|
* Returns +true+ if +object+ is +false+ or +nil+, +false+ otherwise:
|
|
*
|
|
* true ^ Object.new # => false
|
|
* true ^ false # => true
|
|
* true ^ nil # => true
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
true_xor(VALUE obj, VALUE obj2)
|
|
{
|
|
return rb_obj_not(obj2);
|
|
}
|
|
|
|
|
|
/*
|
|
* Document-class: FalseClass
|
|
*
|
|
* The global value <code>false</code> is the only instance of class
|
|
* FalseClass and represents a logically false value in
|
|
* boolean expressions. The class provides operators allowing
|
|
* <code>false</code> to participate correctly in logical expressions.
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* call-seq:
|
|
* false.to_s -> "false"
|
|
*
|
|
* The string representation of <code>false</code> is "false".
|
|
*/
|
|
|
|
VALUE
|
|
rb_false_to_s(VALUE obj)
|
|
{
|
|
return rb_cFalseClass_to_s;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* false & object -> false
|
|
* nil & object -> false
|
|
*
|
|
* Returns +false+:
|
|
*
|
|
* false & true # => false
|
|
* false & Object.new # => false
|
|
*
|
|
* Argument +object+ is evaluated:
|
|
*
|
|
* false & raise # Raises RuntimeError.
|
|
*
|
|
*/
|
|
static VALUE
|
|
false_and(VALUE obj, VALUE obj2)
|
|
{
|
|
return Qfalse;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* false | object -> true or false
|
|
* nil | object -> true or false
|
|
*
|
|
* Returns +false+ if +object+ is +nil+ or +false+, +true+ otherwise:
|
|
*
|
|
* nil | nil # => false
|
|
* nil | false # => false
|
|
* nil | Object.new # => true
|
|
*
|
|
*/
|
|
|
|
#define false_or true_and
|
|
|
|
/*
|
|
* call-seq:
|
|
* false ^ object -> true or false
|
|
* nil ^ object -> true or false
|
|
*
|
|
* Returns +false+ if +object+ is +nil+ or +false+, +true+ otherwise:
|
|
*
|
|
* nil ^ nil # => false
|
|
* nil ^ false # => false
|
|
* nil ^ Object.new # => true
|
|
*
|
|
*/
|
|
|
|
#define false_xor true_and
|
|
|
|
/*
|
|
* call-seq:
|
|
* nil.nil? -> true
|
|
*
|
|
* Returns +true+.
|
|
* For all other objects, method <tt>nil?</tt> returns +false+.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_true(VALUE obj)
|
|
{
|
|
return Qtrue;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.nil? -> true or false
|
|
*
|
|
* Only the object <i>nil</i> responds <code>true</code> to <code>nil?</code>.
|
|
*
|
|
* Object.new.nil? #=> false
|
|
* nil.nil? #=> true
|
|
*/
|
|
|
|
|
|
VALUE
|
|
rb_false(VALUE obj)
|
|
{
|
|
return Qfalse;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj !~ other -> true or false
|
|
*
|
|
* Returns true if two objects do not match (using the <i>=~</i>
|
|
* method), otherwise false.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_not_match(VALUE obj1, VALUE obj2)
|
|
{
|
|
VALUE result = rb_funcall(obj1, id_match, 1, obj2);
|
|
return rb_obj_not(result);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj <=> other -> 0 or nil
|
|
*
|
|
* Returns 0 if +obj+ and +other+ are the same object
|
|
* or <code>obj == other</code>, otherwise nil.
|
|
*
|
|
* The #<=> is used by various methods to compare objects, for example
|
|
* Enumerable#sort, Enumerable#max etc.
|
|
*
|
|
* Your implementation of #<=> should return one of the following values: -1, 0,
|
|
* 1 or nil. -1 means self is smaller than other. 0 means self is equal to other.
|
|
* 1 means self is bigger than other. Nil means the two values could not be
|
|
* compared.
|
|
*
|
|
* When you define #<=>, you can include Comparable to gain the
|
|
* methods #<=, #<, #==, #>=, #> and #between?.
|
|
*/
|
|
static VALUE
|
|
rb_obj_cmp(VALUE obj1, VALUE obj2)
|
|
{
|
|
if (rb_equal(obj1, obj2))
|
|
return INT2FIX(0);
|
|
return Qnil;
|
|
}
|
|
|
|
/***********************************************************************
|
|
*
|
|
* Document-class: Module
|
|
*
|
|
* A Module is a collection of methods and constants. The
|
|
* methods in a module may be instance methods or module methods.
|
|
* Instance methods appear as methods in a class when the module is
|
|
* included, module methods do not. Conversely, module methods may be
|
|
* called without creating an encapsulating object, while instance
|
|
* methods may not. (See Module#module_function.)
|
|
*
|
|
* In the descriptions that follow, the parameter <i>sym</i> refers
|
|
* to a symbol, which is either a quoted string or a
|
|
* Symbol (such as <code>:name</code>).
|
|
*
|
|
* module Mod
|
|
* include Math
|
|
* CONST = 1
|
|
* def meth
|
|
* # ...
|
|
* end
|
|
* end
|
|
* Mod.class #=> Module
|
|
* Mod.constants #=> [:CONST, :PI, :E]
|
|
* Mod.instance_methods #=> [:meth]
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.to_s -> string
|
|
*
|
|
* Returns a string representing this module or class. For basic
|
|
* classes and modules, this is the name. For singletons, we
|
|
* show information on the thing we're attached to as well.
|
|
*/
|
|
|
|
VALUE
|
|
rb_mod_to_s(VALUE klass)
|
|
{
|
|
ID id_defined_at;
|
|
VALUE refined_class, defined_at;
|
|
|
|
if (FL_TEST(klass, FL_SINGLETON)) {
|
|
VALUE s = rb_usascii_str_new2("#<Class:");
|
|
VALUE v = RCLASS_ATTACHED_OBJECT(klass);
|
|
|
|
if (CLASS_OR_MODULE_P(v)) {
|
|
rb_str_append(s, rb_inspect(v));
|
|
}
|
|
else {
|
|
rb_str_append(s, rb_any_to_s(v));
|
|
}
|
|
rb_str_cat2(s, ">");
|
|
|
|
return s;
|
|
}
|
|
refined_class = rb_refinement_module_get_refined_class(klass);
|
|
if (!NIL_P(refined_class)) {
|
|
VALUE s = rb_usascii_str_new2("#<refinement:");
|
|
|
|
rb_str_concat(s, rb_inspect(refined_class));
|
|
rb_str_cat2(s, "@");
|
|
CONST_ID(id_defined_at, "__defined_at__");
|
|
defined_at = rb_attr_get(klass, id_defined_at);
|
|
rb_str_concat(s, rb_inspect(defined_at));
|
|
rb_str_cat2(s, ">");
|
|
return s;
|
|
}
|
|
return rb_class_name(klass);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.freeze -> mod
|
|
*
|
|
* Prevents further modifications to <i>mod</i>.
|
|
*
|
|
* This method returns self.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_freeze(VALUE mod)
|
|
{
|
|
rb_class_name(mod);
|
|
return rb_obj_freeze(mod);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod === obj -> true or false
|
|
*
|
|
* Case Equality---Returns <code>true</code> if <i>obj</i> is an
|
|
* instance of <i>mod</i> or an instance of one of <i>mod</i>'s descendants.
|
|
* Of limited use for modules, but can be used in <code>case</code> statements
|
|
* to classify objects by class.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_eqq(VALUE mod, VALUE arg)
|
|
{
|
|
return rb_obj_is_kind_of(arg, mod);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod <= other -> true, false, or nil
|
|
*
|
|
* Returns true if <i>mod</i> is a subclass of <i>other</i> or
|
|
* is the same as <i>other</i>. Returns
|
|
* <code>nil</code> if there's no relationship between the two.
|
|
* (Think of the relationship in terms of the class definition:
|
|
* "class A < B" implies "A < B".)
|
|
*/
|
|
|
|
VALUE
|
|
rb_class_inherited_p(VALUE mod, VALUE arg)
|
|
{
|
|
if (mod == arg) return Qtrue;
|
|
|
|
if (RB_TYPE_P(arg, T_CLASS) && RB_TYPE_P(mod, T_CLASS)) {
|
|
// comparison between classes
|
|
size_t mod_depth = RCLASS_SUPERCLASS_DEPTH(mod);
|
|
size_t arg_depth = RCLASS_SUPERCLASS_DEPTH(arg);
|
|
if (arg_depth < mod_depth) {
|
|
// check if mod < arg
|
|
return RCLASS_SUPERCLASSES(mod)[arg_depth] == arg ?
|
|
Qtrue :
|
|
Qnil;
|
|
}
|
|
else if (arg_depth > mod_depth) {
|
|
// check if mod > arg
|
|
return RCLASS_SUPERCLASSES(arg)[mod_depth] == mod ?
|
|
Qfalse :
|
|
Qnil;
|
|
}
|
|
else {
|
|
// Depths match, and we know they aren't equal: no relation
|
|
return Qnil;
|
|
}
|
|
}
|
|
else {
|
|
if (!CLASS_OR_MODULE_P(arg) && !RB_TYPE_P(arg, T_ICLASS)) {
|
|
rb_raise(rb_eTypeError, "compared with non class/module");
|
|
}
|
|
if (class_search_ancestor(mod, RCLASS_ORIGIN(arg))) {
|
|
return Qtrue;
|
|
}
|
|
/* not mod < arg; check if mod > arg */
|
|
if (class_search_ancestor(arg, mod)) {
|
|
return Qfalse;
|
|
}
|
|
return Qnil;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod < other -> true, false, or nil
|
|
*
|
|
* Returns true if <i>mod</i> is a subclass of <i>other</i>. Returns
|
|
* <code>false</code> if <i>mod</i> is the same as <i>other</i>
|
|
* or <i>mod</i> is an ancestor of <i>other</i>.
|
|
* Returns <code>nil</code> if there's no relationship between the two.
|
|
* (Think of the relationship in terms of the class definition:
|
|
* "class A < B" implies "A < B".)
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_lt(VALUE mod, VALUE arg)
|
|
{
|
|
if (mod == arg) return Qfalse;
|
|
return rb_class_inherited_p(mod, arg);
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod >= other -> true, false, or nil
|
|
*
|
|
* Returns true if <i>mod</i> is an ancestor of <i>other</i>, or the
|
|
* two modules are the same. Returns
|
|
* <code>nil</code> if there's no relationship between the two.
|
|
* (Think of the relationship in terms of the class definition:
|
|
* "class A < B" implies "B > A".)
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_ge(VALUE mod, VALUE arg)
|
|
{
|
|
if (!CLASS_OR_MODULE_P(arg)) {
|
|
rb_raise(rb_eTypeError, "compared with non class/module");
|
|
}
|
|
|
|
return rb_class_inherited_p(arg, mod);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod > other -> true, false, or nil
|
|
*
|
|
* Returns true if <i>mod</i> is an ancestor of <i>other</i>. Returns
|
|
* <code>false</code> if <i>mod</i> is the same as <i>other</i>
|
|
* or <i>mod</i> is a descendant of <i>other</i>.
|
|
* Returns <code>nil</code> if there's no relationship between the two.
|
|
* (Think of the relationship in terms of the class definition:
|
|
* "class A < B" implies "B > A".)
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_gt(VALUE mod, VALUE arg)
|
|
{
|
|
if (mod == arg) return Qfalse;
|
|
return rb_mod_ge(mod, arg);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* module <=> other_module -> -1, 0, +1, or nil
|
|
*
|
|
* Comparison---Returns -1, 0, +1 or nil depending on whether +module+
|
|
* includes +other_module+, they are the same, or if +module+ is included by
|
|
* +other_module+.
|
|
*
|
|
* Returns +nil+ if +module+ has no relationship with +other_module+, if
|
|
* +other_module+ is not a module, or if the two values are incomparable.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_cmp(VALUE mod, VALUE arg)
|
|
{
|
|
VALUE cmp;
|
|
|
|
if (mod == arg) return INT2FIX(0);
|
|
if (!CLASS_OR_MODULE_P(arg)) {
|
|
return Qnil;
|
|
}
|
|
|
|
cmp = rb_class_inherited_p(mod, arg);
|
|
if (NIL_P(cmp)) return Qnil;
|
|
if (cmp) {
|
|
return INT2FIX(-1);
|
|
}
|
|
return INT2FIX(1);
|
|
}
|
|
|
|
static VALUE rb_mod_initialize_exec(VALUE module);
|
|
|
|
/*
|
|
* call-seq:
|
|
* Module.new -> mod
|
|
* Module.new {|mod| block } -> mod
|
|
*
|
|
* Creates a new anonymous module. If a block is given, it is passed
|
|
* the module object, and the block is evaluated in the context of this
|
|
* module like #module_eval.
|
|
*
|
|
* fred = Module.new do
|
|
* def meth1
|
|
* "hello"
|
|
* end
|
|
* def meth2
|
|
* "bye"
|
|
* end
|
|
* end
|
|
* a = "my string"
|
|
* a.extend(fred) #=> "my string"
|
|
* a.meth1 #=> "hello"
|
|
* a.meth2 #=> "bye"
|
|
*
|
|
* Assign the module to a constant (name starting uppercase) if you
|
|
* want to treat it like a regular module.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_initialize(VALUE module)
|
|
{
|
|
return rb_mod_initialize_exec(module);
|
|
}
|
|
|
|
static VALUE
|
|
rb_mod_initialize_exec(VALUE module)
|
|
{
|
|
if (rb_block_given_p()) {
|
|
rb_mod_module_exec(1, &module, module);
|
|
}
|
|
return Qnil;
|
|
}
|
|
|
|
/* :nodoc: */
|
|
static VALUE
|
|
rb_mod_initialize_clone(int argc, VALUE* argv, VALUE clone)
|
|
{
|
|
VALUE ret, orig, opts;
|
|
rb_scan_args(argc, argv, "1:", &orig, &opts);
|
|
ret = rb_obj_init_clone(argc, argv, clone);
|
|
if (OBJ_FROZEN(orig))
|
|
rb_class_name(clone);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Class.new(super_class=Object) -> a_class
|
|
* Class.new(super_class=Object) { |mod| ... } -> a_class
|
|
*
|
|
* Creates a new anonymous (unnamed) class with the given superclass
|
|
* (or Object if no parameter is given). You can give a
|
|
* class a name by assigning the class object to a constant.
|
|
*
|
|
* If a block is given, it is passed the class object, and the block
|
|
* is evaluated in the context of this class like
|
|
* #class_eval.
|
|
*
|
|
* fred = Class.new do
|
|
* def meth1
|
|
* "hello"
|
|
* end
|
|
* def meth2
|
|
* "bye"
|
|
* end
|
|
* end
|
|
*
|
|
* a = fred.new #=> #<#<Class:0x100381890>:0x100376b98>
|
|
* a.meth1 #=> "hello"
|
|
* a.meth2 #=> "bye"
|
|
*
|
|
* Assign the class to a constant (name starting uppercase) if you
|
|
* want to treat it like a regular class.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_class_initialize(int argc, VALUE *argv, VALUE klass)
|
|
{
|
|
VALUE super;
|
|
|
|
if (RCLASS_SUPER(klass) != 0 || klass == rb_cBasicObject) {
|
|
rb_raise(rb_eTypeError, "already initialized class");
|
|
}
|
|
if (rb_check_arity(argc, 0, 1) == 0) {
|
|
super = rb_cObject;
|
|
}
|
|
else {
|
|
super = argv[0];
|
|
rb_check_inheritable(super);
|
|
if (super != rb_cBasicObject && !RCLASS_SUPER(super)) {
|
|
rb_raise(rb_eTypeError, "can't inherit uninitialized class");
|
|
}
|
|
}
|
|
RCLASS_SET_SUPER(klass, super);
|
|
rb_make_metaclass(klass, RBASIC(super)->klass);
|
|
rb_class_inherited(super, klass);
|
|
rb_mod_initialize_exec(klass);
|
|
|
|
return klass;
|
|
}
|
|
|
|
/*! \private */
|
|
void
|
|
rb_undefined_alloc(VALUE klass)
|
|
{
|
|
rb_raise(rb_eTypeError, "allocator undefined for %"PRIsVALUE,
|
|
klass);
|
|
}
|
|
|
|
static rb_alloc_func_t class_get_alloc_func(VALUE klass);
|
|
static VALUE class_call_alloc_func(rb_alloc_func_t allocator, VALUE klass);
|
|
|
|
/*
|
|
* call-seq:
|
|
* class.allocate() -> obj
|
|
*
|
|
* Allocates space for a new object of <i>class</i>'s class and does not
|
|
* call initialize on the new instance. The returned object must be an
|
|
* instance of <i>class</i>.
|
|
*
|
|
* klass = Class.new do
|
|
* def initialize(*args)
|
|
* @initialized = true
|
|
* end
|
|
*
|
|
* def initialized?
|
|
* @initialized || false
|
|
* end
|
|
* end
|
|
*
|
|
* klass.allocate.initialized? #=> false
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_class_alloc_m(VALUE klass)
|
|
{
|
|
rb_alloc_func_t allocator = class_get_alloc_func(klass);
|
|
if (!rb_obj_respond_to(klass, rb_intern("allocate"), 1)) {
|
|
rb_raise(rb_eTypeError, "calling %"PRIsVALUE".allocate is prohibited",
|
|
klass);
|
|
}
|
|
return class_call_alloc_func(allocator, klass);
|
|
}
|
|
|
|
static VALUE
|
|
rb_class_alloc(VALUE klass)
|
|
{
|
|
rb_alloc_func_t allocator = class_get_alloc_func(klass);
|
|
return class_call_alloc_func(allocator, klass);
|
|
}
|
|
|
|
static rb_alloc_func_t
|
|
class_get_alloc_func(VALUE klass)
|
|
{
|
|
rb_alloc_func_t allocator;
|
|
|
|
if (RCLASS_SUPER(klass) == 0 && klass != rb_cBasicObject) {
|
|
rb_raise(rb_eTypeError, "can't instantiate uninitialized class");
|
|
}
|
|
if (FL_TEST(klass, FL_SINGLETON)) {
|
|
rb_raise(rb_eTypeError, "can't create instance of singleton class");
|
|
}
|
|
allocator = rb_get_alloc_func(klass);
|
|
if (!allocator) {
|
|
rb_undefined_alloc(klass);
|
|
}
|
|
return allocator;
|
|
}
|
|
|
|
static VALUE
|
|
class_call_alloc_func(rb_alloc_func_t allocator, VALUE klass)
|
|
{
|
|
VALUE obj;
|
|
|
|
RUBY_DTRACE_CREATE_HOOK(OBJECT, rb_class2name(klass));
|
|
|
|
obj = (*allocator)(klass);
|
|
|
|
if (rb_obj_class(obj) != rb_class_real(klass)) {
|
|
rb_raise(rb_eTypeError, "wrong instance allocation");
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
VALUE
|
|
rb_obj_alloc(VALUE klass)
|
|
{
|
|
Check_Type(klass, T_CLASS);
|
|
return rb_class_alloc(klass);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* class.new(args, ...) -> obj
|
|
*
|
|
* Calls #allocate to create a new object of <i>class</i>'s class,
|
|
* then invokes that object's #initialize method, passing it
|
|
* <i>args</i>. This is the method that ends up getting called
|
|
* whenever an object is constructed using <code>.new</code>.
|
|
*
|
|
*/
|
|
|
|
VALUE
|
|
rb_class_new_instance_pass_kw(int argc, const VALUE *argv, VALUE klass)
|
|
{
|
|
VALUE obj;
|
|
|
|
obj = rb_class_alloc(klass);
|
|
rb_obj_call_init_kw(obj, argc, argv, RB_PASS_CALLED_KEYWORDS);
|
|
|
|
return obj;
|
|
}
|
|
|
|
VALUE
|
|
rb_class_new_instance_kw(int argc, const VALUE *argv, VALUE klass, int kw_splat)
|
|
{
|
|
VALUE obj;
|
|
Check_Type(klass, T_CLASS);
|
|
|
|
obj = rb_class_alloc(klass);
|
|
rb_obj_call_init_kw(obj, argc, argv, kw_splat);
|
|
|
|
return obj;
|
|
}
|
|
|
|
VALUE
|
|
rb_class_new_instance(int argc, const VALUE *argv, VALUE klass)
|
|
{
|
|
return rb_class_new_instance_kw(argc, argv, klass, RB_NO_KEYWORDS);
|
|
}
|
|
|
|
/**
|
|
* call-seq:
|
|
* class.superclass -> a_super_class or nil
|
|
*
|
|
* Returns the superclass of <i>class</i>, or <code>nil</code>.
|
|
*
|
|
* File.superclass #=> IO
|
|
* IO.superclass #=> Object
|
|
* Object.superclass #=> BasicObject
|
|
* class Foo; end
|
|
* class Bar < Foo; end
|
|
* Bar.superclass #=> Foo
|
|
*
|
|
* Returns nil when the given class does not have a parent class:
|
|
*
|
|
* BasicObject.superclass #=> nil
|
|
*
|
|
*--
|
|
* Returns the superclass of \a klass. Equivalent to \c Class\#superclass in Ruby.
|
|
*
|
|
* It skips modules.
|
|
* \param[in] klass a Class object
|
|
* \return the superclass, or \c Qnil if \a klass does not have a parent class.
|
|
* \sa rb_class_get_superclass
|
|
*++
|
|
*/
|
|
|
|
VALUE
|
|
rb_class_superclass(VALUE klass)
|
|
{
|
|
RUBY_ASSERT(RB_TYPE_P(klass, T_CLASS));
|
|
|
|
VALUE super = RCLASS_SUPER(klass);
|
|
|
|
if (!super) {
|
|
if (klass == rb_cBasicObject) return Qnil;
|
|
rb_raise(rb_eTypeError, "uninitialized class");
|
|
}
|
|
|
|
if (!RCLASS_SUPERCLASS_DEPTH(klass)) {
|
|
return Qnil;
|
|
}
|
|
else {
|
|
super = RCLASS_SUPERCLASSES(klass)[RCLASS_SUPERCLASS_DEPTH(klass) - 1];
|
|
RUBY_ASSERT(RB_TYPE_P(klass, T_CLASS));
|
|
return super;
|
|
}
|
|
}
|
|
|
|
VALUE
|
|
rb_class_get_superclass(VALUE klass)
|
|
{
|
|
return RCLASS(klass)->super;
|
|
}
|
|
|
|
static const char bad_instance_name[] = "`%1$s' is not allowed as an instance variable name";
|
|
static const char bad_class_name[] = "`%1$s' is not allowed as a class variable name";
|
|
static const char bad_const_name[] = "wrong constant name %1$s";
|
|
static const char bad_attr_name[] = "invalid attribute name `%1$s'";
|
|
#define wrong_constant_name bad_const_name
|
|
|
|
/*! \private */
|
|
#define id_for_var(obj, name, type) id_for_setter(obj, name, type, bad_##type##_name)
|
|
/*! \private */
|
|
#define id_for_setter(obj, name, type, message) \
|
|
check_setter_id(obj, &(name), rb_is_##type##_id, rb_is_##type##_name, message, strlen(message))
|
|
static ID
|
|
check_setter_id(VALUE obj, VALUE *pname,
|
|
int (*valid_id_p)(ID), int (*valid_name_p)(VALUE),
|
|
const char *message, size_t message_len)
|
|
{
|
|
ID id = rb_check_id(pname);
|
|
VALUE name = *pname;
|
|
|
|
if (id ? !valid_id_p(id) : !valid_name_p(name)) {
|
|
rb_name_err_raise_str(rb_fstring_new(message, message_len),
|
|
obj, name);
|
|
}
|
|
return id;
|
|
}
|
|
|
|
static int
|
|
rb_is_attr_name(VALUE name)
|
|
{
|
|
return rb_is_local_name(name) || rb_is_const_name(name);
|
|
}
|
|
|
|
static int
|
|
rb_is_attr_id(ID id)
|
|
{
|
|
return rb_is_local_id(id) || rb_is_const_id(id);
|
|
}
|
|
|
|
static ID
|
|
id_for_attr(VALUE obj, VALUE name)
|
|
{
|
|
ID id = id_for_var(obj, name, attr);
|
|
if (!id) id = rb_intern_str(name);
|
|
return id;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* attr_reader(symbol, ...) -> array
|
|
* attr(symbol, ...) -> array
|
|
* attr_reader(string, ...) -> array
|
|
* attr(string, ...) -> array
|
|
*
|
|
* Creates instance variables and corresponding methods that return the
|
|
* value of each instance variable. Equivalent to calling
|
|
* ``<code>attr</code><i>:name</i>'' on each name in turn.
|
|
* String arguments are converted to symbols.
|
|
* Returns an array of defined method names as symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_attr_reader(int argc, VALUE *argv, VALUE klass)
|
|
{
|
|
int i;
|
|
VALUE names = rb_ary_new2(argc);
|
|
|
|
for (i=0; i<argc; i++) {
|
|
ID id = id_for_attr(klass, argv[i]);
|
|
rb_attr(klass, id, TRUE, FALSE, TRUE);
|
|
rb_ary_push(names, ID2SYM(id));
|
|
}
|
|
return names;
|
|
}
|
|
|
|
/**
|
|
* call-seq:
|
|
* attr(name, ...) -> array
|
|
* attr(name, true) -> array
|
|
* attr(name, false) -> array
|
|
*
|
|
* The first form is equivalent to #attr_reader.
|
|
* The second form is equivalent to <code>attr_accessor(name)</code> but deprecated.
|
|
* The last form is equivalent to <code>attr_reader(name)</code> but deprecated.
|
|
* Returns an array of defined method names as symbols.
|
|
*--
|
|
* \private
|
|
* \todo can be static?
|
|
*++
|
|
*/
|
|
VALUE
|
|
rb_mod_attr(int argc, VALUE *argv, VALUE klass)
|
|
{
|
|
if (argc == 2 && (argv[1] == Qtrue || argv[1] == Qfalse)) {
|
|
ID id = id_for_attr(klass, argv[0]);
|
|
VALUE names = rb_ary_new();
|
|
|
|
rb_category_warning(RB_WARN_CATEGORY_DEPRECATED, "optional boolean argument is obsoleted");
|
|
rb_attr(klass, id, 1, RTEST(argv[1]), TRUE);
|
|
rb_ary_push(names, ID2SYM(id));
|
|
if (argv[1] == Qtrue) rb_ary_push(names, ID2SYM(rb_id_attrset(id)));
|
|
return names;
|
|
}
|
|
return rb_mod_attr_reader(argc, argv, klass);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* attr_writer(symbol, ...) -> array
|
|
* attr_writer(string, ...) -> array
|
|
*
|
|
* Creates an accessor method to allow assignment to the attribute
|
|
* <i>symbol</i><code>.id2name</code>.
|
|
* String arguments are converted to symbols.
|
|
* Returns an array of defined method names as symbols.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_attr_writer(int argc, VALUE *argv, VALUE klass)
|
|
{
|
|
int i;
|
|
VALUE names = rb_ary_new2(argc);
|
|
|
|
for (i=0; i<argc; i++) {
|
|
ID id = id_for_attr(klass, argv[i]);
|
|
rb_attr(klass, id, FALSE, TRUE, TRUE);
|
|
rb_ary_push(names, ID2SYM(rb_id_attrset(id)));
|
|
}
|
|
return names;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* attr_accessor(symbol, ...) -> array
|
|
* attr_accessor(string, ...) -> array
|
|
*
|
|
* Defines a named attribute for this module, where the name is
|
|
* <i>symbol.</i><code>id2name</code>, creating an instance variable
|
|
* (<code>@name</code>) and a corresponding access method to read it.
|
|
* Also creates a method called <code>name=</code> to set the attribute.
|
|
* String arguments are converted to symbols.
|
|
* Returns an array of defined method names as symbols.
|
|
*
|
|
* module Mod
|
|
* attr_accessor(:one, :two) #=> [:one, :one=, :two, :two=]
|
|
* end
|
|
* Mod.instance_methods.sort #=> [:one, :one=, :two, :two=]
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_attr_accessor(int argc, VALUE *argv, VALUE klass)
|
|
{
|
|
int i;
|
|
VALUE names = rb_ary_new2(argc * 2);
|
|
|
|
for (i=0; i<argc; i++) {
|
|
ID id = id_for_attr(klass, argv[i]);
|
|
|
|
rb_attr(klass, id, TRUE, TRUE, TRUE);
|
|
rb_ary_push(names, ID2SYM(id));
|
|
rb_ary_push(names, ID2SYM(rb_id_attrset(id)));
|
|
}
|
|
return names;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.const_get(sym, inherit=true) -> obj
|
|
* mod.const_get(str, inherit=true) -> obj
|
|
*
|
|
* Checks for a constant with the given name in <i>mod</i>.
|
|
* If +inherit+ is set, the lookup will also search
|
|
* the ancestors (and +Object+ if <i>mod</i> is a +Module+).
|
|
*
|
|
* The value of the constant is returned if a definition is found,
|
|
* otherwise a +NameError+ is raised.
|
|
*
|
|
* Math.const_get(:PI) #=> 3.14159265358979
|
|
*
|
|
* This method will recursively look up constant names if a namespaced
|
|
* class name is provided. For example:
|
|
*
|
|
* module Foo; class Bar; end end
|
|
* Object.const_get 'Foo::Bar'
|
|
*
|
|
* The +inherit+ flag is respected on each lookup. For example:
|
|
*
|
|
* module Foo
|
|
* class Bar
|
|
* VAL = 10
|
|
* end
|
|
*
|
|
* class Baz < Bar; end
|
|
* end
|
|
*
|
|
* Object.const_get 'Foo::Baz::VAL' # => 10
|
|
* Object.const_get 'Foo::Baz::VAL', false # => NameError
|
|
*
|
|
* If the argument is not a valid constant name a +NameError+ will be
|
|
* raised with a warning "wrong constant name".
|
|
*
|
|
* Object.const_get 'foobar' #=> NameError: wrong constant name foobar
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_const_get(int argc, VALUE *argv, VALUE mod)
|
|
{
|
|
VALUE name, recur;
|
|
rb_encoding *enc;
|
|
const char *pbeg, *p, *path, *pend;
|
|
ID id;
|
|
|
|
rb_check_arity(argc, 1, 2);
|
|
name = argv[0];
|
|
recur = (argc == 1) ? Qtrue : argv[1];
|
|
|
|
if (SYMBOL_P(name)) {
|
|
if (!rb_is_const_sym(name)) goto wrong_name;
|
|
id = rb_check_id(&name);
|
|
if (!id) return rb_const_missing(mod, name);
|
|
return RTEST(recur) ? rb_const_get(mod, id) : rb_const_get_at(mod, id);
|
|
}
|
|
|
|
path = StringValuePtr(name);
|
|
enc = rb_enc_get(name);
|
|
|
|
if (!rb_enc_asciicompat(enc)) {
|
|
rb_raise(rb_eArgError, "invalid class path encoding (non ASCII)");
|
|
}
|
|
|
|
pbeg = p = path;
|
|
pend = path + RSTRING_LEN(name);
|
|
|
|
if (p >= pend || !*p) {
|
|
goto wrong_name;
|
|
}
|
|
|
|
if (p + 2 < pend && p[0] == ':' && p[1] == ':') {
|
|
mod = rb_cObject;
|
|
p += 2;
|
|
pbeg = p;
|
|
}
|
|
|
|
while (p < pend) {
|
|
VALUE part;
|
|
long len, beglen;
|
|
|
|
while (p < pend && *p != ':') p++;
|
|
|
|
if (pbeg == p) goto wrong_name;
|
|
|
|
id = rb_check_id_cstr(pbeg, len = p-pbeg, enc);
|
|
beglen = pbeg-path;
|
|
|
|
if (p < pend && p[0] == ':') {
|
|
if (p + 2 >= pend || p[1] != ':') goto wrong_name;
|
|
p += 2;
|
|
pbeg = p;
|
|
}
|
|
|
|
if (!RB_TYPE_P(mod, T_MODULE) && !RB_TYPE_P(mod, T_CLASS)) {
|
|
rb_raise(rb_eTypeError, "%"PRIsVALUE" does not refer to class/module",
|
|
QUOTE(name));
|
|
}
|
|
|
|
if (!id) {
|
|
part = rb_str_subseq(name, beglen, len);
|
|
OBJ_FREEZE(part);
|
|
if (!rb_is_const_name(part)) {
|
|
name = part;
|
|
goto wrong_name;
|
|
}
|
|
else if (!rb_method_basic_definition_p(CLASS_OF(mod), id_const_missing)) {
|
|
part = rb_str_intern(part);
|
|
mod = rb_const_missing(mod, part);
|
|
continue;
|
|
}
|
|
else {
|
|
rb_mod_const_missing(mod, part);
|
|
}
|
|
}
|
|
if (!rb_is_const_id(id)) {
|
|
name = ID2SYM(id);
|
|
goto wrong_name;
|
|
}
|
|
#if 0
|
|
mod = rb_const_get_0(mod, id, beglen > 0 || !RTEST(recur), RTEST(recur), FALSE);
|
|
#else
|
|
if (!RTEST(recur)) {
|
|
mod = rb_const_get_at(mod, id);
|
|
}
|
|
else if (beglen == 0) {
|
|
mod = rb_const_get(mod, id);
|
|
}
|
|
else {
|
|
mod = rb_const_get_from(mod, id);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return mod;
|
|
|
|
wrong_name:
|
|
rb_name_err_raise(wrong_constant_name, mod, name);
|
|
UNREACHABLE_RETURN(Qundef);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.const_set(sym, obj) -> obj
|
|
* mod.const_set(str, obj) -> obj
|
|
*
|
|
* Sets the named constant to the given object, returning that object.
|
|
* Creates a new constant if no constant with the given name previously
|
|
* existed.
|
|
*
|
|
* Math.const_set("HIGH_SCHOOL_PI", 22.0/7.0) #=> 3.14285714285714
|
|
* Math::HIGH_SCHOOL_PI - Math::PI #=> 0.00126448926734968
|
|
*
|
|
* If +sym+ or +str+ is not a valid constant name a +NameError+ will be
|
|
* raised with a warning "wrong constant name".
|
|
*
|
|
* Object.const_set('foobar', 42) #=> NameError: wrong constant name foobar
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_const_set(VALUE mod, VALUE name, VALUE value)
|
|
{
|
|
ID id = id_for_var(mod, name, const);
|
|
if (!id) id = rb_intern_str(name);
|
|
rb_const_set(mod, id, value);
|
|
|
|
return value;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.const_defined?(sym, inherit=true) -> true or false
|
|
* mod.const_defined?(str, inherit=true) -> true or false
|
|
*
|
|
* Says whether _mod_ or its ancestors have a constant with the given name:
|
|
*
|
|
* Float.const_defined?(:EPSILON) #=> true, found in Float itself
|
|
* Float.const_defined?("String") #=> true, found in Object (ancestor)
|
|
* BasicObject.const_defined?(:Hash) #=> false
|
|
*
|
|
* If _mod_ is a +Module+, additionally +Object+ and its ancestors are checked:
|
|
*
|
|
* Math.const_defined?(:String) #=> true, found in Object
|
|
*
|
|
* In each of the checked classes or modules, if the constant is not present
|
|
* but there is an autoload for it, +true+ is returned directly without
|
|
* autoloading:
|
|
*
|
|
* module Admin
|
|
* autoload :User, 'admin/user'
|
|
* end
|
|
* Admin.const_defined?(:User) #=> true
|
|
*
|
|
* If the constant is not found the callback +const_missing+ is *not* called
|
|
* and the method returns +false+.
|
|
*
|
|
* If +inherit+ is false, the lookup only checks the constants in the receiver:
|
|
*
|
|
* IO.const_defined?(:SYNC) #=> true, found in File::Constants (ancestor)
|
|
* IO.const_defined?(:SYNC, false) #=> false, not found in IO itself
|
|
*
|
|
* In this case, the same logic for autoloading applies.
|
|
*
|
|
* If the argument is not a valid constant name a +NameError+ is raised with the
|
|
* message "wrong constant name _name_":
|
|
*
|
|
* Hash.const_defined? 'foobar' #=> NameError: wrong constant name foobar
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_const_defined(int argc, VALUE *argv, VALUE mod)
|
|
{
|
|
VALUE name, recur;
|
|
rb_encoding *enc;
|
|
const char *pbeg, *p, *path, *pend;
|
|
ID id;
|
|
|
|
rb_check_arity(argc, 1, 2);
|
|
name = argv[0];
|
|
recur = (argc == 1) ? Qtrue : argv[1];
|
|
|
|
if (SYMBOL_P(name)) {
|
|
if (!rb_is_const_sym(name)) goto wrong_name;
|
|
id = rb_check_id(&name);
|
|
if (!id) return Qfalse;
|
|
return RTEST(recur) ? rb_const_defined(mod, id) : rb_const_defined_at(mod, id);
|
|
}
|
|
|
|
path = StringValuePtr(name);
|
|
enc = rb_enc_get(name);
|
|
|
|
if (!rb_enc_asciicompat(enc)) {
|
|
rb_raise(rb_eArgError, "invalid class path encoding (non ASCII)");
|
|
}
|
|
|
|
pbeg = p = path;
|
|
pend = path + RSTRING_LEN(name);
|
|
|
|
if (p >= pend || !*p) {
|
|
goto wrong_name;
|
|
}
|
|
|
|
if (p + 2 < pend && p[0] == ':' && p[1] == ':') {
|
|
mod = rb_cObject;
|
|
p += 2;
|
|
pbeg = p;
|
|
}
|
|
|
|
while (p < pend) {
|
|
VALUE part;
|
|
long len, beglen;
|
|
|
|
while (p < pend && *p != ':') p++;
|
|
|
|
if (pbeg == p) goto wrong_name;
|
|
|
|
id = rb_check_id_cstr(pbeg, len = p-pbeg, enc);
|
|
beglen = pbeg-path;
|
|
|
|
if (p < pend && p[0] == ':') {
|
|
if (p + 2 >= pend || p[1] != ':') goto wrong_name;
|
|
p += 2;
|
|
pbeg = p;
|
|
}
|
|
|
|
if (!id) {
|
|
part = rb_str_subseq(name, beglen, len);
|
|
OBJ_FREEZE(part);
|
|
if (!rb_is_const_name(part)) {
|
|
name = part;
|
|
goto wrong_name;
|
|
}
|
|
else {
|
|
return Qfalse;
|
|
}
|
|
}
|
|
if (!rb_is_const_id(id)) {
|
|
name = ID2SYM(id);
|
|
goto wrong_name;
|
|
}
|
|
|
|
#if 0
|
|
mod = rb_const_search(mod, id, beglen > 0 || !RTEST(recur), RTEST(recur), FALSE);
|
|
if (UNDEF_P(mod)) return Qfalse;
|
|
#else
|
|
if (!RTEST(recur)) {
|
|
if (!rb_const_defined_at(mod, id))
|
|
return Qfalse;
|
|
if (p == pend) return Qtrue;
|
|
mod = rb_const_get_at(mod, id);
|
|
}
|
|
else if (beglen == 0) {
|
|
if (!rb_const_defined(mod, id))
|
|
return Qfalse;
|
|
if (p == pend) return Qtrue;
|
|
mod = rb_const_get(mod, id);
|
|
}
|
|
else {
|
|
if (!rb_const_defined_from(mod, id))
|
|
return Qfalse;
|
|
if (p == pend) return Qtrue;
|
|
mod = rb_const_get_from(mod, id);
|
|
}
|
|
#endif
|
|
|
|
if (p < pend && !RB_TYPE_P(mod, T_MODULE) && !RB_TYPE_P(mod, T_CLASS)) {
|
|
rb_raise(rb_eTypeError, "%"PRIsVALUE" does not refer to class/module",
|
|
QUOTE(name));
|
|
}
|
|
}
|
|
|
|
return Qtrue;
|
|
|
|
wrong_name:
|
|
rb_name_err_raise(wrong_constant_name, mod, name);
|
|
UNREACHABLE_RETURN(Qundef);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.const_source_location(sym, inherit=true) -> [String, Integer]
|
|
* mod.const_source_location(str, inherit=true) -> [String, Integer]
|
|
*
|
|
* Returns the Ruby source filename and line number containing the definition
|
|
* of the constant specified. If the named constant is not found, +nil+ is returned.
|
|
* If the constant is found, but its source location can not be extracted
|
|
* (constant is defined in C code), empty array is returned.
|
|
*
|
|
* _inherit_ specifies whether to lookup in <code>mod.ancestors</code> (+true+
|
|
* by default).
|
|
*
|
|
* # test.rb:
|
|
* class A # line 1
|
|
* C1 = 1
|
|
* C2 = 2
|
|
* end
|
|
*
|
|
* module M # line 6
|
|
* C3 = 3
|
|
* end
|
|
*
|
|
* class B < A # line 10
|
|
* include M
|
|
* C4 = 4
|
|
* end
|
|
*
|
|
* class A # continuation of A definition
|
|
* C2 = 8 # constant redefinition; warned yet allowed
|
|
* end
|
|
*
|
|
* p B.const_source_location('C4') # => ["test.rb", 12]
|
|
* p B.const_source_location('C3') # => ["test.rb", 7]
|
|
* p B.const_source_location('C1') # => ["test.rb", 2]
|
|
*
|
|
* p B.const_source_location('C3', false) # => nil -- don't lookup in ancestors
|
|
*
|
|
* p A.const_source_location('C2') # => ["test.rb", 16] -- actual (last) definition place
|
|
*
|
|
* p Object.const_source_location('B') # => ["test.rb", 10] -- top-level constant could be looked through Object
|
|
* p Object.const_source_location('A') # => ["test.rb", 1] -- class reopening is NOT considered new definition
|
|
*
|
|
* p B.const_source_location('A') # => ["test.rb", 1] -- because Object is in ancestors
|
|
* p M.const_source_location('A') # => ["test.rb", 1] -- Object is not ancestor, but additionally checked for modules
|
|
*
|
|
* p Object.const_source_location('A::C1') # => ["test.rb", 2] -- nesting is supported
|
|
* p Object.const_source_location('String') # => [] -- constant is defined in C code
|
|
*
|
|
*
|
|
*/
|
|
static VALUE
|
|
rb_mod_const_source_location(int argc, VALUE *argv, VALUE mod)
|
|
{
|
|
VALUE name, recur, loc = Qnil;
|
|
rb_encoding *enc;
|
|
const char *pbeg, *p, *path, *pend;
|
|
ID id;
|
|
|
|
rb_check_arity(argc, 1, 2);
|
|
name = argv[0];
|
|
recur = (argc == 1) ? Qtrue : argv[1];
|
|
|
|
if (SYMBOL_P(name)) {
|
|
if (!rb_is_const_sym(name)) goto wrong_name;
|
|
id = rb_check_id(&name);
|
|
if (!id) return Qnil;
|
|
return RTEST(recur) ? rb_const_source_location(mod, id) : rb_const_source_location_at(mod, id);
|
|
}
|
|
|
|
path = StringValuePtr(name);
|
|
enc = rb_enc_get(name);
|
|
|
|
if (!rb_enc_asciicompat(enc)) {
|
|
rb_raise(rb_eArgError, "invalid class path encoding (non ASCII)");
|
|
}
|
|
|
|
pbeg = p = path;
|
|
pend = path + RSTRING_LEN(name);
|
|
|
|
if (p >= pend || !*p) {
|
|
goto wrong_name;
|
|
}
|
|
|
|
if (p + 2 < pend && p[0] == ':' && p[1] == ':') {
|
|
mod = rb_cObject;
|
|
p += 2;
|
|
pbeg = p;
|
|
}
|
|
|
|
while (p < pend) {
|
|
VALUE part;
|
|
long len, beglen;
|
|
|
|
while (p < pend && *p != ':') p++;
|
|
|
|
if (pbeg == p) goto wrong_name;
|
|
|
|
id = rb_check_id_cstr(pbeg, len = p-pbeg, enc);
|
|
beglen = pbeg-path;
|
|
|
|
if (p < pend && p[0] == ':') {
|
|
if (p + 2 >= pend || p[1] != ':') goto wrong_name;
|
|
p += 2;
|
|
pbeg = p;
|
|
}
|
|
|
|
if (!id) {
|
|
part = rb_str_subseq(name, beglen, len);
|
|
OBJ_FREEZE(part);
|
|
if (!rb_is_const_name(part)) {
|
|
name = part;
|
|
goto wrong_name;
|
|
}
|
|
else {
|
|
return Qnil;
|
|
}
|
|
}
|
|
if (!rb_is_const_id(id)) {
|
|
name = ID2SYM(id);
|
|
goto wrong_name;
|
|
}
|
|
if (p < pend) {
|
|
if (RTEST(recur)) {
|
|
mod = rb_const_get(mod, id);
|
|
}
|
|
else {
|
|
mod = rb_const_get_at(mod, id);
|
|
}
|
|
if (!RB_TYPE_P(mod, T_MODULE) && !RB_TYPE_P(mod, T_CLASS)) {
|
|
rb_raise(rb_eTypeError, "%"PRIsVALUE" does not refer to class/module",
|
|
QUOTE(name));
|
|
}
|
|
}
|
|
else {
|
|
if (RTEST(recur)) {
|
|
loc = rb_const_source_location(mod, id);
|
|
}
|
|
else {
|
|
loc = rb_const_source_location_at(mod, id);
|
|
}
|
|
break;
|
|
}
|
|
recur = Qfalse;
|
|
}
|
|
|
|
return loc;
|
|
|
|
wrong_name:
|
|
rb_name_err_raise(wrong_constant_name, mod, name);
|
|
UNREACHABLE_RETURN(Qundef);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.instance_variable_get(symbol) -> obj
|
|
* obj.instance_variable_get(string) -> obj
|
|
*
|
|
* Returns the value of the given instance variable, or nil if the
|
|
* instance variable is not set. The <code>@</code> part of the
|
|
* variable name should be included for regular instance
|
|
* variables. Throws a NameError exception if the
|
|
* supplied symbol is not valid as an instance variable name.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* class Fred
|
|
* def initialize(p1, p2)
|
|
* @a, @b = p1, p2
|
|
* end
|
|
* end
|
|
* fred = Fred.new('cat', 99)
|
|
* fred.instance_variable_get(:@a) #=> "cat"
|
|
* fred.instance_variable_get("@b") #=> 99
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_ivar_get(VALUE obj, VALUE iv)
|
|
{
|
|
ID id = id_for_var(obj, iv, instance);
|
|
|
|
if (!id) {
|
|
return Qnil;
|
|
}
|
|
return rb_ivar_get(obj, id);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.instance_variable_set(symbol, obj) -> obj
|
|
* obj.instance_variable_set(string, obj) -> obj
|
|
*
|
|
* Sets the instance variable named by <i>symbol</i> to the given
|
|
* object. This may circumvent the encapsulation intended by
|
|
* the author of the class, so it should be used with care.
|
|
* The variable does not have to exist prior to this call.
|
|
* If the instance variable name is passed as a string, that string
|
|
* is converted to a symbol.
|
|
*
|
|
* class Fred
|
|
* def initialize(p1, p2)
|
|
* @a, @b = p1, p2
|
|
* end
|
|
* end
|
|
* fred = Fred.new('cat', 99)
|
|
* fred.instance_variable_set(:@a, 'dog') #=> "dog"
|
|
* fred.instance_variable_set(:@c, 'cat') #=> "cat"
|
|
* fred.inspect #=> "#<Fred:0x401b3da8 @a=\"dog\", @b=99, @c=\"cat\">"
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_ivar_set_m(VALUE obj, VALUE iv, VALUE val)
|
|
{
|
|
ID id = id_for_var(obj, iv, instance);
|
|
if (!id) id = rb_intern_str(iv);
|
|
return rb_ivar_set(obj, id, val);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.instance_variable_defined?(symbol) -> true or false
|
|
* obj.instance_variable_defined?(string) -> true or false
|
|
*
|
|
* Returns <code>true</code> if the given instance variable is
|
|
* defined in <i>obj</i>.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* class Fred
|
|
* def initialize(p1, p2)
|
|
* @a, @b = p1, p2
|
|
* end
|
|
* end
|
|
* fred = Fred.new('cat', 99)
|
|
* fred.instance_variable_defined?(:@a) #=> true
|
|
* fred.instance_variable_defined?("@b") #=> true
|
|
* fred.instance_variable_defined?("@c") #=> false
|
|
*/
|
|
|
|
static VALUE
|
|
rb_obj_ivar_defined(VALUE obj, VALUE iv)
|
|
{
|
|
ID id = id_for_var(obj, iv, instance);
|
|
|
|
if (!id) {
|
|
return Qfalse;
|
|
}
|
|
return rb_ivar_defined(obj, id);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.class_variable_get(symbol) -> obj
|
|
* mod.class_variable_get(string) -> obj
|
|
*
|
|
* Returns the value of the given class variable (or throws a
|
|
* NameError exception). The <code>@@</code> part of the
|
|
* variable name should be included for regular class variables.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* class Fred
|
|
* @@foo = 99
|
|
* end
|
|
* Fred.class_variable_get(:@@foo) #=> 99
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_cvar_get(VALUE obj, VALUE iv)
|
|
{
|
|
ID id = id_for_var(obj, iv, class);
|
|
|
|
if (!id) {
|
|
rb_name_err_raise("uninitialized class variable %1$s in %2$s",
|
|
obj, iv);
|
|
}
|
|
return rb_cvar_get(obj, id);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.class_variable_set(symbol, obj) -> obj
|
|
* obj.class_variable_set(string, obj) -> obj
|
|
*
|
|
* Sets the class variable named by <i>symbol</i> to the given
|
|
* object.
|
|
* If the class variable name is passed as a string, that string
|
|
* is converted to a symbol.
|
|
*
|
|
* class Fred
|
|
* @@foo = 99
|
|
* def foo
|
|
* @@foo
|
|
* end
|
|
* end
|
|
* Fred.class_variable_set(:@@foo, 101) #=> 101
|
|
* Fred.new.foo #=> 101
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_cvar_set(VALUE obj, VALUE iv, VALUE val)
|
|
{
|
|
ID id = id_for_var(obj, iv, class);
|
|
if (!id) id = rb_intern_str(iv);
|
|
rb_cvar_set(obj, id, val);
|
|
return val;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* obj.class_variable_defined?(symbol) -> true or false
|
|
* obj.class_variable_defined?(string) -> true or false
|
|
*
|
|
* Returns <code>true</code> if the given class variable is defined
|
|
* in <i>obj</i>.
|
|
* String arguments are converted to symbols.
|
|
*
|
|
* class Fred
|
|
* @@foo = 99
|
|
* end
|
|
* Fred.class_variable_defined?(:@@foo) #=> true
|
|
* Fred.class_variable_defined?(:@@bar) #=> false
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_cvar_defined(VALUE obj, VALUE iv)
|
|
{
|
|
ID id = id_for_var(obj, iv, class);
|
|
|
|
if (!id) {
|
|
return Qfalse;
|
|
}
|
|
return rb_cvar_defined(obj, id);
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* mod.singleton_class? -> true or false
|
|
*
|
|
* Returns <code>true</code> if <i>mod</i> is a singleton class or
|
|
* <code>false</code> if it is an ordinary class or module.
|
|
*
|
|
* class C
|
|
* end
|
|
* C.singleton_class? #=> false
|
|
* C.singleton_class.singleton_class? #=> true
|
|
*/
|
|
|
|
static VALUE
|
|
rb_mod_singleton_p(VALUE klass)
|
|
{
|
|
return RBOOL(RB_TYPE_P(klass, T_CLASS) && FL_TEST(klass, FL_SINGLETON));
|
|
}
|
|
|
|
/*! \private */
|
|
static const struct conv_method_tbl {
|
|
const char method[6];
|
|
unsigned short id;
|
|
} conv_method_names[] = {
|
|
#define M(n) {#n, (unsigned short)idTo_##n}
|
|
M(int),
|
|
M(ary),
|
|
M(str),
|
|
M(sym),
|
|
M(hash),
|
|
M(proc),
|
|
M(io),
|
|
M(a),
|
|
M(s),
|
|
M(i),
|
|
M(f),
|
|
M(r),
|
|
#undef M
|
|
};
|
|
#define IMPLICIT_CONVERSIONS 7
|
|
|
|
static int
|
|
conv_method_index(const char *method)
|
|
{
|
|
static const char prefix[] = "to_";
|
|
|
|
if (strncmp(prefix, method, sizeof(prefix)-1) == 0) {
|
|
const char *const meth = &method[sizeof(prefix)-1];
|
|
int i;
|
|
for (i=0; i < numberof(conv_method_names); i++) {
|
|
if (conv_method_names[i].method[0] == meth[0] &&
|
|
strcmp(conv_method_names[i].method, meth) == 0) {
|
|
return i;
|
|
}
|
|
}
|
|
}
|
|
return numberof(conv_method_names);
|
|
}
|
|
|
|
static VALUE
|
|
convert_type_with_id(VALUE val, const char *tname, ID method, int raise, int index)
|
|
{
|
|
VALUE r = rb_check_funcall(val, method, 0, 0);
|
|
if (UNDEF_P(r)) {
|
|
if (raise) {
|
|
const char *msg =
|
|
((index < 0 ? conv_method_index(rb_id2name(method)) : index)
|
|
< IMPLICIT_CONVERSIONS) ?
|
|
"no implicit conversion of" : "can't convert";
|
|
const char *cname = NIL_P(val) ? "nil" :
|
|
val == Qtrue ? "true" :
|
|
val == Qfalse ? "false" :
|
|
NULL;
|
|
if (cname)
|
|
rb_raise(rb_eTypeError, "%s %s into %s", msg, cname, tname);
|
|
rb_raise(rb_eTypeError, "%s %"PRIsVALUE" into %s", msg,
|
|
rb_obj_class(val),
|
|
tname);
|
|
}
|
|
return Qnil;
|
|
}
|
|
return r;
|
|
}
|
|
|
|
static VALUE
|
|
convert_type(VALUE val, const char *tname, const char *method, int raise)
|
|
{
|
|
int i = conv_method_index(method);
|
|
ID m = i < numberof(conv_method_names) ?
|
|
conv_method_names[i].id : rb_intern(method);
|
|
return convert_type_with_id(val, tname, m, raise, i);
|
|
}
|
|
|
|
/*! \private */
|
|
NORETURN(static void conversion_mismatch(VALUE, const char *, const char *, VALUE));
|
|
static void
|
|
conversion_mismatch(VALUE val, const char *tname, const char *method, VALUE result)
|
|
{
|
|
VALUE cname = rb_obj_class(val);
|
|
rb_raise(rb_eTypeError,
|
|
"can't convert %"PRIsVALUE" to %s (%"PRIsVALUE"#%s gives %"PRIsVALUE")",
|
|
cname, tname, cname, method, rb_obj_class(result));
|
|
}
|
|
|
|
VALUE
|
|
rb_convert_type(VALUE val, int type, const char *tname, const char *method)
|
|
{
|
|
VALUE v;
|
|
|
|
if (TYPE(val) == type) return val;
|
|
v = convert_type(val, tname, method, TRUE);
|
|
if (TYPE(v) != type) {
|
|
conversion_mismatch(val, tname, method, v);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
/*! \private */
|
|
VALUE
|
|
rb_convert_type_with_id(VALUE val, int type, const char *tname, ID method)
|
|
{
|
|
VALUE v;
|
|
|
|
if (TYPE(val) == type) return val;
|
|
v = convert_type_with_id(val, tname, method, TRUE, -1);
|
|
if (TYPE(v) != type) {
|
|
conversion_mismatch(val, tname, RSTRING_PTR(rb_id2str(method)), v);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
VALUE
|
|
rb_check_convert_type(VALUE val, int type, const char *tname, const char *method)
|
|
{
|
|
VALUE v;
|
|
|
|
/* always convert T_DATA */
|
|
if (TYPE(val) == type && type != T_DATA) return val;
|
|
v = convert_type(val, tname, method, FALSE);
|
|
if (NIL_P(v)) return Qnil;
|
|
if (TYPE(v) != type) {
|
|
conversion_mismatch(val, tname, method, v);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
/*! \private */
|
|
VALUE
|
|
rb_check_convert_type_with_id(VALUE val, int type, const char *tname, ID method)
|
|
{
|
|
VALUE v;
|
|
|
|
/* always convert T_DATA */
|
|
if (TYPE(val) == type && type != T_DATA) return val;
|
|
v = convert_type_with_id(val, tname, method, FALSE, -1);
|
|
if (NIL_P(v)) return Qnil;
|
|
if (TYPE(v) != type) {
|
|
conversion_mismatch(val, tname, RSTRING_PTR(rb_id2str(method)), v);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
#define try_to_int(val, mid, raise) \
|
|
convert_type_with_id(val, "Integer", mid, raise, -1)
|
|
|
|
ALWAYS_INLINE(static VALUE rb_to_integer_with_id_exception(VALUE val, const char *method, ID mid, int raise));
|
|
/* Integer specific rb_check_convert_type_with_id */
|
|
static inline VALUE
|
|
rb_to_integer_with_id_exception(VALUE val, const char *method, ID mid, int raise)
|
|
{
|
|
VALUE v;
|
|
|
|
if (RB_INTEGER_TYPE_P(val)) return val;
|
|
v = try_to_int(val, mid, raise);
|
|
if (!raise && NIL_P(v)) return Qnil;
|
|
if (!RB_INTEGER_TYPE_P(v)) {
|
|
conversion_mismatch(val, "Integer", method, v);
|
|
}
|
|
return v;
|
|
}
|
|
#define rb_to_integer(val, method, mid) \
|
|
rb_to_integer_with_id_exception(val, method, mid, TRUE)
|
|
|
|
VALUE
|
|
rb_check_to_integer(VALUE val, const char *method)
|
|
{
|
|
VALUE v;
|
|
|
|
if (RB_INTEGER_TYPE_P(val)) return val;
|
|
v = convert_type(val, "Integer", method, FALSE);
|
|
if (!RB_INTEGER_TYPE_P(v)) {
|
|
return Qnil;
|
|
}
|
|
return v;
|
|
}
|
|
|
|
VALUE
|
|
rb_to_int(VALUE val)
|
|
{
|
|
return rb_to_integer(val, "to_int", idTo_int);
|
|
}
|
|
|
|
VALUE
|
|
rb_check_to_int(VALUE val)
|
|
{
|
|
if (RB_INTEGER_TYPE_P(val)) return val;
|
|
val = try_to_int(val, idTo_int, FALSE);
|
|
if (RB_INTEGER_TYPE_P(val)) return val;
|
|
return Qnil;
|
|
}
|
|
|
|
static VALUE
|
|
rb_check_to_i(VALUE val)
|
|
{
|
|
if (RB_INTEGER_TYPE_P(val)) return val;
|
|
val = try_to_int(val, idTo_i, FALSE);
|
|
if (RB_INTEGER_TYPE_P(val)) return val;
|
|
return Qnil;
|
|
}
|
|
|
|
static VALUE
|
|
rb_convert_to_integer(VALUE val, int base, int raise_exception)
|
|
{
|
|
VALUE tmp;
|
|
|
|
if (base) {
|
|
tmp = rb_check_string_type(val);
|
|
|
|
if (! NIL_P(tmp)) {
|
|
val = tmp;
|
|
}
|
|
else if (! raise_exception) {
|
|
return Qnil;
|
|
}
|
|
else {
|
|
rb_raise(rb_eArgError, "base specified for non string value");
|
|
}
|
|
}
|
|
if (RB_FLOAT_TYPE_P(val)) {
|
|
double f = RFLOAT_VALUE(val);
|
|
if (!raise_exception && !isfinite(f)) return Qnil;
|
|
if (FIXABLE(f)) return LONG2FIX((long)f);
|
|
return rb_dbl2big(f);
|
|
}
|
|
else if (RB_INTEGER_TYPE_P(val)) {
|
|
return val;
|
|
}
|
|
else if (RB_TYPE_P(val, T_STRING)) {
|
|
return rb_str_convert_to_inum(val, base, TRUE, raise_exception);
|
|
}
|
|
else if (NIL_P(val)) {
|
|
if (!raise_exception) return Qnil;
|
|
rb_raise(rb_eTypeError, "can't convert nil into Integer");
|
|
}
|
|
|
|
tmp = rb_protect(rb_check_to_int, val, NULL);
|
|
if (RB_INTEGER_TYPE_P(tmp)) return tmp;
|
|
rb_set_errinfo(Qnil);
|
|
if (!NIL_P(tmp = rb_check_string_type(val))) {
|
|
return rb_str_convert_to_inum(tmp, base, TRUE, raise_exception);
|
|
}
|
|
|
|
if (!raise_exception) {
|
|
VALUE result = rb_protect(rb_check_to_i, val, NULL);
|
|
rb_set_errinfo(Qnil);
|
|
return result;
|
|
}
|
|
|
|
return rb_to_integer(val, "to_i", idTo_i);
|
|
}
|
|
|
|
VALUE
|
|
rb_Integer(VALUE val)
|
|
{
|
|
return rb_convert_to_integer(val, 0, TRUE);
|
|
}
|
|
|
|
VALUE
|
|
rb_check_integer_type(VALUE val)
|
|
{
|
|
return rb_to_integer_with_id_exception(val, "to_int", idTo_int, FALSE);
|
|
}
|
|
|
|
int
|
|
rb_bool_expected(VALUE obj, const char *flagname, int raise)
|
|
{
|
|
switch (obj) {
|
|
case Qtrue:
|
|
return TRUE;
|
|
case Qfalse:
|
|
return FALSE;
|
|
default: {
|
|
static const char message[] = "expected true or false as %s: %+"PRIsVALUE;
|
|
if (raise) {
|
|
rb_raise(rb_eArgError, message, flagname, obj);
|
|
}
|
|
rb_warning(message, flagname, obj);
|
|
return !NIL_P(obj);
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
rb_opts_exception_p(VALUE opts, int default_value)
|
|
{
|
|
static const ID kwds[1] = {idException};
|
|
VALUE exception;
|
|
if (rb_get_kwargs(opts, kwds, 0, 1, &exception))
|
|
return rb_bool_expected(exception, "exception", TRUE);
|
|
return default_value;
|
|
}
|
|
|
|
#define opts_exception_p(opts) rb_opts_exception_p((opts), TRUE)
|
|
|
|
/*
|
|
* call-seq:
|
|
* Integer(object, base = 0, exception: true) -> integer or nil
|
|
*
|
|
* Returns an integer converted from +object+.
|
|
*
|
|
* Tries to convert +object+ to an integer
|
|
* using +to_int+ first and +to_i+ second;
|
|
* see below for exceptions.
|
|
*
|
|
* With a non-zero +base+, +object+ must be a string or convertible
|
|
* to a string.
|
|
*
|
|
* ==== numeric objects
|
|
*
|
|
* With integer argument +object+ given, returns +object+:
|
|
*
|
|
* Integer(1) # => 1
|
|
* Integer(-1) # => -1
|
|
*
|
|
* With floating-point argument +object+ given,
|
|
* returns +object+ truncated to an integer:
|
|
*
|
|
* Integer(1.9) # => 1 # Rounds toward zero.
|
|
* Integer(-1.9) # => -1 # Rounds toward zero.
|
|
*
|
|
* ==== string objects
|
|
*
|
|
* With string argument +object+ and zero +base+ given,
|
|
* returns +object+ converted to an integer in base 10:
|
|
*
|
|
* Integer('100') # => 100
|
|
* Integer('-100') # => -100
|
|
*
|
|
* With +base+ zero, string +object+ may contain leading characters
|
|
* to specify the actual base (radix indicator):
|
|
*
|
|
* Integer('0100') # => 64 # Leading '0' specifies base 8.
|
|
* Integer('0b100') # => 4 # Leading '0b', specifies base 2.
|
|
* Integer('0x100') # => 256 # Leading '0x' specifies base 16.
|
|
*
|
|
* With a positive +base+ (in range 2..36) given, returns +object+
|
|
* converted to an integer in the given base:
|
|
*
|
|
* Integer('100', 2) # => 4
|
|
* Integer('100', 8) # => 64
|
|
* Integer('-100', 16) # => -256
|
|
*
|
|
* With a negative +base+ (in range -36..-2) given, returns +object+
|
|
* converted to an integer in the radix indicator if exists or
|
|
* +-base+:
|
|
*
|
|
* Integer('0x100', -2) # => 256
|
|
* Integer('100', -2) # => 4
|
|
* Integer('0b100', -8) # => 4
|
|
* Integer('100', -8) # => 64
|
|
* Integer('0o100', -10) # => 64
|
|
* Integer('100', -10) # => 100
|
|
*
|
|
* +base+ -1 is equal the -10 case.
|
|
*
|
|
* When converting strings, surrounding whitespace and embedded underscores
|
|
* are allowed and ignored:
|
|
*
|
|
* Integer(' 100 ') # => 100
|
|
* Integer('-1_0_0', 16) # => -256
|
|
*
|
|
* ==== other classes
|
|
*
|
|
* Examples with +object+ of various other classes:
|
|
*
|
|
* Integer(Rational(9, 10)) # => 0 # Rounds toward zero.
|
|
* Integer(Complex(2, 0)) # => 2 # Imaginary part must be zero.
|
|
* Integer(Time.now) # => 1650974042
|
|
*
|
|
* ==== keywords
|
|
*
|
|
* With optional keyword argument +exception+ given as +true+ (the default):
|
|
*
|
|
* - Raises TypeError if +object+ does not respond to +to_int+ or +to_i+.
|
|
* - Raises TypeError if +object+ is +nil+.
|
|
* - Raise ArgumentError if +object+ is an invalid string.
|
|
*
|
|
* With +exception+ given as +false+, an exception of any kind is suppressed
|
|
* and +nil+ is returned.
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_integer(int argc, VALUE *argv, VALUE obj)
|
|
{
|
|
VALUE arg = Qnil, opts = Qnil;
|
|
int base = 0;
|
|
|
|
if (argc > 1) {
|
|
int narg = 1;
|
|
VALUE vbase = rb_check_to_int(argv[1]);
|
|
if (!NIL_P(vbase)) {
|
|
base = NUM2INT(vbase);
|
|
narg = 2;
|
|
}
|
|
if (argc > narg) {
|
|
VALUE hash = rb_check_hash_type(argv[argc-1]);
|
|
if (!NIL_P(hash)) {
|
|
opts = rb_extract_keywords(&hash);
|
|
if (!hash) --argc;
|
|
}
|
|
}
|
|
}
|
|
rb_check_arity(argc, 1, 2);
|
|
arg = argv[0];
|
|
|
|
return rb_convert_to_integer(arg, base, opts_exception_p(opts));
|
|
}
|
|
|
|
static double
|
|
rb_cstr_to_dbl_raise(const char *p, int badcheck, int raise, int *error)
|
|
{
|
|
const char *q;
|
|
char *end;
|
|
double d;
|
|
const char *ellipsis = "";
|
|
int w;
|
|
enum {max_width = 20};
|
|
#define OutOfRange() ((end - p > max_width) ? \
|
|
(w = max_width, ellipsis = "...") : \
|
|
(w = (int)(end - p), ellipsis = ""))
|
|
|
|
if (!p) return 0.0;
|
|
q = p;
|
|
while (ISSPACE(*p)) p++;
|
|
|
|
if (!badcheck && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
|
|
return 0.0;
|
|
}
|
|
|
|
d = strtod(p, &end);
|
|
if (errno == ERANGE) {
|
|
OutOfRange();
|
|
rb_warning("Float %.*s%s out of range", w, p, ellipsis);
|
|
errno = 0;
|
|
}
|
|
if (p == end) {
|
|
if (badcheck) {
|
|
goto bad;
|
|
}
|
|
return d;
|
|
}
|
|
if (*end) {
|
|
char buf[DBL_DIG * 4 + 10];
|
|
char *n = buf;
|
|
char *const init_e = buf + DBL_DIG * 4;
|
|
char *e = init_e;
|
|
char prev = 0;
|
|
int dot_seen = FALSE;
|
|
|
|
switch (*p) {case '+': case '-': prev = *n++ = *p++;}
|
|
if (*p == '0') {
|
|
prev = *n++ = '0';
|
|
while (*++p == '0');
|
|
}
|
|
while (p < end && n < e) prev = *n++ = *p++;
|
|
while (*p) {
|
|
if (*p == '_') {
|
|
/* remove an underscore between digits */
|
|
if (n == buf || !ISDIGIT(prev) || (++p, !ISDIGIT(*p))) {
|
|
if (badcheck) goto bad;
|
|
break;
|
|
}
|
|
}
|
|
prev = *p++;
|
|
if (e == init_e && (prev == 'e' || prev == 'E' || prev == 'p' || prev == 'P')) {
|
|
e = buf + sizeof(buf) - 1;
|
|
*n++ = prev;
|
|
switch (*p) {case '+': case '-': prev = *n++ = *p++;}
|
|
if (*p == '0') {
|
|
prev = *n++ = '0';
|
|
while (*++p == '0');
|
|
}
|
|
continue;
|
|
}
|
|
else if (ISSPACE(prev)) {
|
|
while (ISSPACE(*p)) ++p;
|
|
if (*p) {
|
|
if (badcheck) goto bad;
|
|
break;
|
|
}
|
|
}
|
|
else if (prev == '.' ? dot_seen++ : !ISDIGIT(prev)) {
|
|
if (badcheck) goto bad;
|
|
break;
|
|
}
|
|
if (n < e) *n++ = prev;
|
|
}
|
|
*n = '\0';
|
|
p = buf;
|
|
|
|
if (!badcheck && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
|
|
return 0.0;
|
|
}
|
|
|
|
d = strtod(p, &end);
|
|
if (errno == ERANGE) {
|
|
OutOfRange();
|
|
rb_warning("Float %.*s%s out of range", w, p, ellipsis);
|
|
errno = 0;
|
|
}
|
|
if (badcheck) {
|
|
if (!end || p == end) goto bad;
|
|
while (*end && ISSPACE(*end)) end++;
|
|
if (*end) goto bad;
|
|
}
|
|
}
|
|
if (errno == ERANGE) {
|
|
errno = 0;
|
|
OutOfRange();
|
|
rb_raise(rb_eArgError, "Float %.*s%s out of range", w, q, ellipsis);
|
|
}
|
|
return d;
|
|
|
|
bad:
|
|
if (raise) {
|
|
rb_invalid_str(q, "Float()");
|
|
UNREACHABLE_RETURN(nan(""));
|
|
}
|
|
else {
|
|
if (error) *error = 1;
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double
|
|
rb_cstr_to_dbl(const char *p, int badcheck)
|
|
{
|
|
return rb_cstr_to_dbl_raise(p, badcheck, TRUE, NULL);
|
|
}
|
|
|
|
static double
|
|
rb_str_to_dbl_raise(VALUE str, int badcheck, int raise, int *error)
|
|
{
|
|
char *s;
|
|
long len;
|
|
double ret;
|
|
VALUE v = 0;
|
|
|
|
StringValue(str);
|
|
s = RSTRING_PTR(str);
|
|
len = RSTRING_LEN(str);
|
|
if (s) {
|
|
if (badcheck && memchr(s, '\0', len)) {
|
|
if (raise)
|
|
rb_raise(rb_eArgError, "string for Float contains null byte");
|
|
else {
|
|
if (error) *error = 1;
|
|
return 0.0;
|
|
}
|
|
}
|
|
if (s[len]) { /* no sentinel somehow */
|
|
char *p = ALLOCV(v, (size_t)len + 1);
|
|
MEMCPY(p, s, char, len);
|
|
p[len] = '\0';
|
|
s = p;
|
|
}
|
|
}
|
|
ret = rb_cstr_to_dbl_raise(s, badcheck, raise, error);
|
|
if (v)
|
|
ALLOCV_END(v);
|
|
return ret;
|
|
}
|
|
|
|
FUNC_MINIMIZED(double rb_str_to_dbl(VALUE str, int badcheck));
|
|
|
|
double
|
|
rb_str_to_dbl(VALUE str, int badcheck)
|
|
{
|
|
return rb_str_to_dbl_raise(str, badcheck, TRUE, NULL);
|
|
}
|
|
|
|
/*! \cond INTERNAL_MACRO */
|
|
#define fix2dbl_without_to_f(x) (double)FIX2LONG(x)
|
|
#define big2dbl_without_to_f(x) rb_big2dbl(x)
|
|
#define int2dbl_without_to_f(x) \
|
|
(FIXNUM_P(x) ? fix2dbl_without_to_f(x) : big2dbl_without_to_f(x))
|
|
#define num2dbl_without_to_f(x) \
|
|
(FIXNUM_P(x) ? fix2dbl_without_to_f(x) : \
|
|
RB_BIGNUM_TYPE_P(x) ? big2dbl_without_to_f(x) : \
|
|
(Check_Type(x, T_FLOAT), RFLOAT_VALUE(x)))
|
|
static inline double
|
|
rat2dbl_without_to_f(VALUE x)
|
|
{
|
|
VALUE num = rb_rational_num(x);
|
|
VALUE den = rb_rational_den(x);
|
|
return num2dbl_without_to_f(num) / num2dbl_without_to_f(den);
|
|
}
|
|
|
|
#define special_const_to_float(val, pre, post) \
|
|
switch (val) { \
|
|
case Qnil: \
|
|
rb_raise_static(rb_eTypeError, pre "nil" post); \
|
|
case Qtrue: \
|
|
rb_raise_static(rb_eTypeError, pre "true" post); \
|
|
case Qfalse: \
|
|
rb_raise_static(rb_eTypeError, pre "false" post); \
|
|
}
|
|
/*! \endcond */
|
|
|
|
static inline void
|
|
conversion_to_float(VALUE val)
|
|
{
|
|
special_const_to_float(val, "can't convert ", " into Float");
|
|
}
|
|
|
|
static inline void
|
|
implicit_conversion_to_float(VALUE val)
|
|
{
|
|
special_const_to_float(val, "no implicit conversion to float from ", "");
|
|
}
|
|
|
|
static int
|
|
to_float(VALUE *valp, int raise_exception)
|
|
{
|
|
VALUE val = *valp;
|
|
if (SPECIAL_CONST_P(val)) {
|
|
if (FIXNUM_P(val)) {
|
|
*valp = DBL2NUM(fix2dbl_without_to_f(val));
|
|
return T_FLOAT;
|
|
}
|
|
else if (FLONUM_P(val)) {
|
|
return T_FLOAT;
|
|
}
|
|
else if (raise_exception) {
|
|
conversion_to_float(val);
|
|
}
|
|
}
|
|
else {
|
|
int type = BUILTIN_TYPE(val);
|
|
switch (type) {
|
|
case T_FLOAT:
|
|
return T_FLOAT;
|
|
case T_BIGNUM:
|
|
*valp = DBL2NUM(big2dbl_without_to_f(val));
|
|
return T_FLOAT;
|
|
case T_RATIONAL:
|
|
*valp = DBL2NUM(rat2dbl_without_to_f(val));
|
|
return T_FLOAT;
|
|
case T_STRING:
|
|
return T_STRING;
|
|
}
|
|
}
|
|
return T_NONE;
|
|
}
|
|
|
|
static VALUE
|
|
convert_type_to_float_protected(VALUE val)
|
|
{
|
|
return rb_convert_type_with_id(val, T_FLOAT, "Float", id_to_f);
|
|
}
|
|
|
|
static VALUE
|
|
rb_convert_to_float(VALUE val, int raise_exception)
|
|
{
|
|
switch (to_float(&val, raise_exception)) {
|
|
case T_FLOAT:
|
|
return val;
|
|
case T_STRING:
|
|
if (!raise_exception) {
|
|
int e = 0;
|
|
double x = rb_str_to_dbl_raise(val, TRUE, raise_exception, &e);
|
|
return e ? Qnil : DBL2NUM(x);
|
|
}
|
|
return DBL2NUM(rb_str_to_dbl(val, TRUE));
|
|
case T_NONE:
|
|
if (SPECIAL_CONST_P(val) && !raise_exception)
|
|
return Qnil;
|
|
}
|
|
|
|
if (!raise_exception) {
|
|
int state;
|
|
VALUE result = rb_protect(convert_type_to_float_protected, val, &state);
|
|
if (state) rb_set_errinfo(Qnil);
|
|
return result;
|
|
}
|
|
|
|
return rb_convert_type_with_id(val, T_FLOAT, "Float", id_to_f);
|
|
}
|
|
|
|
FUNC_MINIMIZED(VALUE rb_Float(VALUE val));
|
|
|
|
VALUE
|
|
rb_Float(VALUE val)
|
|
{
|
|
return rb_convert_to_float(val, TRUE);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_float1(rb_execution_context_t *ec, VALUE obj, VALUE arg)
|
|
{
|
|
return rb_convert_to_float(arg, TRUE);
|
|
}
|
|
|
|
static VALUE
|
|
rb_f_float(rb_execution_context_t *ec, VALUE obj, VALUE arg, VALUE opts)
|
|
{
|
|
int exception = rb_bool_expected(opts, "exception", TRUE);
|
|
return rb_convert_to_float(arg, exception);
|
|
}
|
|
|
|
static VALUE
|
|
numeric_to_float(VALUE val)
|
|
{
|
|
if (!rb_obj_is_kind_of(val, rb_cNumeric)) {
|
|
rb_raise(rb_eTypeError, "can't convert %"PRIsVALUE" into Float",
|
|
rb_obj_class(val));
|
|
}
|
|
return rb_convert_type_with_id(val, T_FLOAT, "Float", id_to_f);
|
|
}
|
|
|
|
VALUE
|
|
rb_to_float(VALUE val)
|
|
{
|
|
switch (to_float(&val, TRUE)) {
|
|
case T_FLOAT:
|
|
return val;
|
|
}
|
|
return numeric_to_float(val);
|
|
}
|
|
|
|
VALUE
|
|
rb_check_to_float(VALUE val)
|
|
{
|
|
if (RB_FLOAT_TYPE_P(val)) return val;
|
|
if (!rb_obj_is_kind_of(val, rb_cNumeric)) {
|
|
return Qnil;
|
|
}
|
|
return rb_check_convert_type_with_id(val, T_FLOAT, "Float", id_to_f);
|
|
}
|
|
|
|
static inline int
|
|
basic_to_f_p(VALUE klass)
|
|
{
|
|
return rb_method_basic_definition_p(klass, id_to_f);
|
|
}
|
|
|
|
/*! \private */
|
|
double
|
|
rb_num_to_dbl(VALUE val)
|
|
{
|
|
if (SPECIAL_CONST_P(val)) {
|
|
if (FIXNUM_P(val)) {
|
|
if (basic_to_f_p(rb_cInteger))
|
|
return fix2dbl_without_to_f(val);
|
|
}
|
|
else if (FLONUM_P(val)) {
|
|
return rb_float_flonum_value(val);
|
|
}
|
|
else {
|
|
conversion_to_float(val);
|
|
}
|
|
}
|
|
else {
|
|
switch (BUILTIN_TYPE(val)) {
|
|
case T_FLOAT:
|
|
return rb_float_noflonum_value(val);
|
|
case T_BIGNUM:
|
|
if (basic_to_f_p(rb_cInteger))
|
|
return big2dbl_without_to_f(val);
|
|
break;
|
|
case T_RATIONAL:
|
|
if (basic_to_f_p(rb_cRational))
|
|
return rat2dbl_without_to_f(val);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
val = numeric_to_float(val);
|
|
return RFLOAT_VALUE(val);
|
|
}
|
|
|
|
double
|
|
rb_num2dbl(VALUE val)
|
|
{
|
|
if (SPECIAL_CONST_P(val)) {
|
|
if (FIXNUM_P(val)) {
|
|
return fix2dbl_without_to_f(val);
|
|
}
|
|
else if (FLONUM_P(val)) {
|
|
return rb_float_flonum_value(val);
|
|
}
|
|
else {
|
|
implicit_conversion_to_float(val);
|
|
}
|
|
}
|
|
else {
|
|
switch (BUILTIN_TYPE(val)) {
|
|
case T_FLOAT:
|
|
return rb_float_noflonum_value(val);
|
|
case T_BIGNUM:
|
|
return big2dbl_without_to_f(val);
|
|
case T_RATIONAL:
|
|
return rat2dbl_without_to_f(val);
|
|
case T_STRING:
|
|
rb_raise(rb_eTypeError, "no implicit conversion to float from string");
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
val = rb_convert_type_with_id(val, T_FLOAT, "Float", id_to_f);
|
|
return RFLOAT_VALUE(val);
|
|
}
|
|
|
|
VALUE
|
|
rb_String(VALUE val)
|
|
{
|
|
VALUE tmp = rb_check_string_type(val);
|
|
if (NIL_P(tmp))
|
|
tmp = rb_convert_type_with_id(val, T_STRING, "String", idTo_s);
|
|
return tmp;
|
|
}
|
|
|
|
|
|
/*
|
|
* call-seq:
|
|
* String(object) -> object or new_string
|
|
*
|
|
* Returns a string converted from +object+.
|
|
*
|
|
* Tries to convert +object+ to a string
|
|
* using +to_str+ first and +to_s+ second:
|
|
*
|
|
* String([0, 1, 2]) # => "[0, 1, 2]"
|
|
* String(0..5) # => "0..5"
|
|
* String({foo: 0, bar: 1}) # => "{:foo=>0, :bar=>1}"
|
|
*
|
|
* Raises +TypeError+ if +object+ cannot be converted to a string.
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_string(VALUE obj, VALUE arg)
|
|
{
|
|
return rb_String(arg);
|
|
}
|
|
|
|
VALUE
|
|
rb_Array(VALUE val)
|
|
{
|
|
VALUE tmp = rb_check_array_type(val);
|
|
|
|
if (NIL_P(tmp)) {
|
|
tmp = rb_check_to_array(val);
|
|
if (NIL_P(tmp)) {
|
|
return rb_ary_new3(1, val);
|
|
}
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Array(object) -> object or new_array
|
|
*
|
|
* Returns an array converted from +object+.
|
|
*
|
|
* Tries to convert +object+ to an array
|
|
* using +to_ary+ first and +to_a+ second:
|
|
*
|
|
* Array([0, 1, 2]) # => [0, 1, 2]
|
|
* Array({foo: 0, bar: 1}) # => [[:foo, 0], [:bar, 1]]
|
|
* Array(0..4) # => [0, 1, 2, 3, 4]
|
|
*
|
|
* Returns +object+ in an array, <tt>[object]</tt>,
|
|
* if +object+ cannot be converted:
|
|
*
|
|
* Array(:foo) # => [:foo]
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_array(VALUE obj, VALUE arg)
|
|
{
|
|
return rb_Array(arg);
|
|
}
|
|
|
|
/**
|
|
* Equivalent to \c Kernel\#Hash in Ruby
|
|
*/
|
|
VALUE
|
|
rb_Hash(VALUE val)
|
|
{
|
|
VALUE tmp;
|
|
|
|
if (NIL_P(val)) return rb_hash_new();
|
|
tmp = rb_check_hash_type(val);
|
|
if (NIL_P(tmp)) {
|
|
if (RB_TYPE_P(val, T_ARRAY) && RARRAY_LEN(val) == 0)
|
|
return rb_hash_new();
|
|
rb_raise(rb_eTypeError, "can't convert %s into Hash", rb_obj_classname(val));
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* Hash(object) -> object or new_hash
|
|
*
|
|
* Returns a hash converted from +object+.
|
|
*
|
|
* - If +object+ is:
|
|
*
|
|
* - A hash, returns +object+.
|
|
* - An empty array or +nil+, returns an empty hash.
|
|
*
|
|
* - Otherwise, if <tt>object.to_hash</tt> returns a hash, returns that hash.
|
|
* - Otherwise, returns TypeError.
|
|
*
|
|
* Examples:
|
|
*
|
|
* Hash({foo: 0, bar: 1}) # => {:foo=>0, :bar=>1}
|
|
* Hash(nil) # => {}
|
|
* Hash([]) # => {}
|
|
*
|
|
*/
|
|
|
|
static VALUE
|
|
rb_f_hash(VALUE obj, VALUE arg)
|
|
{
|
|
return rb_Hash(arg);
|
|
}
|
|
|
|
/*! \private */
|
|
struct dig_method {
|
|
VALUE klass;
|
|
int basic;
|
|
};
|
|
|
|
static ID id_dig;
|
|
|
|
static int
|
|
dig_basic_p(VALUE obj, struct dig_method *cache)
|
|
{
|
|
VALUE klass = RBASIC_CLASS(obj);
|
|
if (klass != cache->klass) {
|
|
cache->klass = klass;
|
|
cache->basic = rb_method_basic_definition_p(klass, id_dig);
|
|
}
|
|
return cache->basic;
|
|
}
|
|
|
|
static void
|
|
no_dig_method(int found, VALUE recv, ID mid, int argc, const VALUE *argv, VALUE data)
|
|
{
|
|
if (!found) {
|
|
rb_raise(rb_eTypeError, "%"PRIsVALUE" does not have #dig method",
|
|
CLASS_OF(data));
|
|
}
|
|
}
|
|
|
|
/*! \private */
|
|
VALUE
|
|
rb_obj_dig(int argc, VALUE *argv, VALUE obj, VALUE notfound)
|
|
{
|
|
struct dig_method hash = {Qnil}, ary = {Qnil}, strt = {Qnil};
|
|
|
|
for (; argc > 0; ++argv, --argc) {
|
|
if (NIL_P(obj)) return notfound;
|
|
if (!SPECIAL_CONST_P(obj)) {
|
|
switch (BUILTIN_TYPE(obj)) {
|
|
case T_HASH:
|
|
if (dig_basic_p(obj, &hash)) {
|
|
obj = rb_hash_aref(obj, *argv);
|
|
continue;
|
|
}
|
|
break;
|
|
case T_ARRAY:
|
|
if (dig_basic_p(obj, &ary)) {
|
|
obj = rb_ary_at(obj, *argv);
|
|
continue;
|
|
}
|
|
break;
|
|
case T_STRUCT:
|
|
if (dig_basic_p(obj, &strt)) {
|
|
obj = rb_struct_lookup(obj, *argv);
|
|
continue;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
return rb_check_funcall_with_hook_kw(obj, id_dig, argc, argv,
|
|
no_dig_method, obj,
|
|
RB_NO_KEYWORDS);
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
/*
|
|
* call-seq:
|
|
* sprintf(format_string *objects) -> string
|
|
*
|
|
* Returns the string resulting from formatting +objects+
|
|
* into +format_string+.
|
|
*
|
|
* For details on +format_string+, see
|
|
* {Format Specifications}[rdoc-ref:format_specifications.rdoc].
|
|
*/
|
|
|
|
static VALUE
|
|
f_sprintf(int c, const VALUE *v, VALUE _)
|
|
{
|
|
return rb_f_sprintf(c, v);
|
|
}
|
|
|
|
/*
|
|
* Document-class: Class
|
|
*
|
|
* Classes in Ruby are first-class objects---each is an instance of
|
|
* class Class.
|
|
*
|
|
* Typically, you create a new class by using:
|
|
*
|
|
* class Name
|
|
* # some code describing the class behavior
|
|
* end
|
|
*
|
|
* When a new class is created, an object of type Class is initialized and
|
|
* assigned to a global constant (Name in this case).
|
|
*
|
|
* When <code>Name.new</code> is called to create a new object, the
|
|
* #new method in Class is run by default.
|
|
* This can be demonstrated by overriding #new in Class:
|
|
*
|
|
* class Class
|
|
* alias old_new new
|
|
* def new(*args)
|
|
* print "Creating a new ", self.name, "\n"
|
|
* old_new(*args)
|
|
* end
|
|
* end
|
|
*
|
|
* class Name
|
|
* end
|
|
*
|
|
* n = Name.new
|
|
*
|
|
* <em>produces:</em>
|
|
*
|
|
* Creating a new Name
|
|
*
|
|
* Classes, modules, and objects are interrelated. In the diagram
|
|
* that follows, the vertical arrows represent inheritance, and the
|
|
* parentheses metaclasses. All metaclasses are instances
|
|
* of the class `Class'.
|
|
* +---------+ +-...
|
|
* | | |
|
|
* BasicObject-----|-->(BasicObject)-------|-...
|
|
* ^ | ^ |
|
|
* | | | |
|
|
* Object---------|----->(Object)---------|-...
|
|
* ^ | ^ |
|
|
* | | | |
|
|
* +-------+ | +--------+ |
|
|
* | | | | | |
|
|
* | Module-|---------|--->(Module)-|-...
|
|
* | ^ | | ^ |
|
|
* | | | | | |
|
|
* | Class-|---------|---->(Class)-|-...
|
|
* | ^ | | ^ |
|
|
* | +---+ | +----+
|
|
* | |
|
|
* obj--->OtherClass---------->(OtherClass)-----------...
|
|
*
|
|
*/
|
|
|
|
|
|
/* Document-class: BasicObject
|
|
*
|
|
* BasicObject is the parent class of all classes in Ruby. It's an explicit
|
|
* blank class.
|
|
*
|
|
* BasicObject can be used for creating object hierarchies independent of
|
|
* Ruby's object hierarchy, proxy objects like the Delegator class, or other
|
|
* uses where namespace pollution from Ruby's methods and classes must be
|
|
* avoided.
|
|
*
|
|
* To avoid polluting BasicObject for other users an appropriately named
|
|
* subclass of BasicObject should be created instead of directly modifying
|
|
* BasicObject:
|
|
*
|
|
* class MyObjectSystem < BasicObject
|
|
* end
|
|
*
|
|
* BasicObject does not include Kernel (for methods like +puts+) and
|
|
* BasicObject is outside of the namespace of the standard library so common
|
|
* classes will not be found without using a full class path.
|
|
*
|
|
* A variety of strategies can be used to provide useful portions of the
|
|
* standard library to subclasses of BasicObject. A subclass could
|
|
* <code>include Kernel</code> to obtain +puts+, +exit+, etc. A custom
|
|
* Kernel-like module could be created and included or delegation can be used
|
|
* via #method_missing:
|
|
*
|
|
* class MyObjectSystem < BasicObject
|
|
* DELEGATE = [:puts, :p]
|
|
*
|
|
* def method_missing(name, *args, &block)
|
|
* return super unless DELEGATE.include? name
|
|
* ::Kernel.send(name, *args, &block)
|
|
* end
|
|
*
|
|
* def respond_to_missing?(name, include_private = false)
|
|
* DELEGATE.include?(name) or super
|
|
* end
|
|
* end
|
|
*
|
|
* Access to classes and modules from the Ruby standard library can be
|
|
* obtained in a BasicObject subclass by referencing the desired constant
|
|
* from the root like <code>::File</code> or <code>::Enumerator</code>.
|
|
* Like #method_missing, #const_missing can be used to delegate constant
|
|
* lookup to +Object+:
|
|
*
|
|
* class MyObjectSystem < BasicObject
|
|
* def self.const_missing(name)
|
|
* ::Object.const_get(name)
|
|
* end
|
|
* end
|
|
*
|
|
* === What's Here
|
|
*
|
|
* These are the methods defined for \BasicObject:
|
|
*
|
|
* - ::new: Returns a new \BasicObject instance.
|
|
* - #!: Returns the boolean negation of +self+: +true+ or +false+.
|
|
* - #!=: Returns whether +self+ and the given object are _not_ equal.
|
|
* - #==: Returns whether +self+ and the given object are equivalent.
|
|
* - #__id__: Returns the integer object identifier for +self+.
|
|
* - #__send__: Calls the method identified by the given symbol.
|
|
* - #equal?: Returns whether +self+ and the given object are the same object.
|
|
* - #instance_eval: Evaluates the given string or block in the context of +self+.
|
|
* - #instance_exec: Executes the given block in the context of +self+,
|
|
* passing the given arguments.
|
|
*
|
|
*/
|
|
|
|
/* Document-class: Object
|
|
*
|
|
* Object is the default root of all Ruby objects. Object inherits from
|
|
* BasicObject which allows creating alternate object hierarchies. Methods
|
|
* on Object are available to all classes unless explicitly overridden.
|
|
*
|
|
* Object mixes in the Kernel module, making the built-in kernel functions
|
|
* globally accessible. Although the instance methods of Object are defined
|
|
* by the Kernel module, we have chosen to document them here for clarity.
|
|
*
|
|
* When referencing constants in classes inheriting from Object you do not
|
|
* need to use the full namespace. For example, referencing +File+ inside
|
|
* +YourClass+ will find the top-level File class.
|
|
*
|
|
* In the descriptions of Object's methods, the parameter <i>symbol</i> refers
|
|
* to a symbol, which is either a quoted string or a Symbol (such as
|
|
* <code>:name</code>).
|
|
*
|
|
* == What's Here
|
|
*
|
|
* First, what's elsewhere. \Class \Object:
|
|
*
|
|
* - Inherits from {class BasicObject}[rdoc-ref:BasicObject@What-27s+Here].
|
|
* - Includes {module Kernel}[rdoc-ref:Kernel@What-27s+Here].
|
|
*
|
|
* Here, class \Object provides methods for:
|
|
*
|
|
* - {Querying}[rdoc-ref:Object@Querying]
|
|
* - {Instance Variables}[rdoc-ref:Object@Instance+Variables]
|
|
* - {Other}[rdoc-ref:Object@Other]
|
|
*
|
|
* === Querying
|
|
*
|
|
* - #!~: Returns +true+ if +self+ does not match the given object,
|
|
* otherwise +false+.
|
|
* - #<=>: Returns 0 if +self+ and the given object +object+ are the same
|
|
* object, or if <tt>self == object</tt>; otherwise returns +nil+.
|
|
* - #===: Implements case equality, effectively the same as calling #==.
|
|
* - #eql?: Implements hash equality, effectively the same as calling #==.
|
|
* - #kind_of? (aliased as #is_a?): Returns whether given argument is an ancestor
|
|
* of the singleton class of +self+.
|
|
* - #instance_of?: Returns whether +self+ is an instance of the given class.
|
|
* - #instance_variable_defined?: Returns whether the given instance variable
|
|
* is defined in +self+.
|
|
* - #method: Returns the Method object for the given method in +self+.
|
|
* - #methods: Returns an array of symbol names of public and protected methods
|
|
* in +self+.
|
|
* - #nil?: Returns +false+. (Only +nil+ responds +true+ to method <tt>nil?</tt>.)
|
|
* - #object_id: Returns an integer corresponding to +self+ that is unique
|
|
* for the current process
|
|
* - #private_methods: Returns an array of the symbol names
|
|
* of the private methods in +self+.
|
|
* - #protected_methods: Returns an array of the symbol names
|
|
* of the protected methods in +self+.
|
|
* - #public_method: Returns the Method object for the given public method in +self+.
|
|
* - #public_methods: Returns an array of the symbol names
|
|
* of the public methods in +self+.
|
|
* - #respond_to?: Returns whether +self+ responds to the given method.
|
|
* - #singleton_class: Returns the singleton class of +self+.
|
|
* - #singleton_method: Returns the Method object for the given singleton method
|
|
* in +self+.
|
|
* - #singleton_methods: Returns an array of the symbol names
|
|
* of the singleton methods in +self+.
|
|
*
|
|
* - #define_singleton_method: Defines a singleton method in +self+
|
|
* for the given symbol method-name and block or proc.
|
|
* - #extend: Includes the given modules in the singleton class of +self+.
|
|
* - #public_send: Calls the given public method in +self+ with the given argument.
|
|
* - #send: Calls the given method in +self+ with the given argument.
|
|
*
|
|
* === Instance Variables
|
|
*
|
|
* - #instance_variable_get: Returns the value of the given instance variable
|
|
* in +self+, or +nil+ if the instance variable is not set.
|
|
* - #instance_variable_set: Sets the value of the given instance variable in +self+
|
|
* to the given object.
|
|
* - #instance_variables: Returns an array of the symbol names
|
|
* of the instance variables in +self+.
|
|
* - #remove_instance_variable: Removes the named instance variable from +self+.
|
|
*
|
|
* === Other
|
|
*
|
|
* - #clone: Returns a shallow copy of +self+, including singleton class
|
|
* and frozen state.
|
|
* - #define_singleton_method: Defines a singleton method in +self+
|
|
* for the given symbol method-name and block or proc.
|
|
* - #display: Prints +self+ to the given IO stream or <tt>$stdout</tt>.
|
|
* - #dup: Returns a shallow unfrozen copy of +self+.
|
|
* - #enum_for (aliased as #to_enum): Returns an Enumerator for +self+
|
|
* using the using the given method, arguments, and block.
|
|
* - #extend: Includes the given modules in the singleton class of +self+.
|
|
* - #freeze: Prevents further modifications to +self+.
|
|
* - #hash: Returns the integer hash value for +self+.
|
|
* - #inspect: Returns a human-readable string representation of +self+.
|
|
* - #itself: Returns +self+.
|
|
* - #method_missing: Method called when an undefined method is called on +self+.
|
|
* - #public_send: Calls the given public method in +self+ with the given argument.
|
|
* - #send: Calls the given method in +self+ with the given argument.
|
|
* - #to_s: Returns a string representation of +self+.
|
|
*
|
|
*/
|
|
|
|
void
|
|
InitVM_Object(void)
|
|
{
|
|
Init_class_hierarchy();
|
|
|
|
#if 0
|
|
// teach RDoc about these classes
|
|
rb_cBasicObject = rb_define_class("BasicObject", Qnil);
|
|
rb_cObject = rb_define_class("Object", rb_cBasicObject);
|
|
rb_cModule = rb_define_class("Module", rb_cObject);
|
|
rb_cClass = rb_define_class("Class", rb_cModule);
|
|
rb_cRefinement = rb_define_class("Refinement", rb_cModule);
|
|
#endif
|
|
|
|
rb_define_private_method(rb_cBasicObject, "initialize", rb_obj_initialize, 0);
|
|
rb_define_alloc_func(rb_cBasicObject, rb_class_allocate_instance);
|
|
rb_define_method(rb_cBasicObject, "==", rb_obj_equal, 1);
|
|
rb_define_method(rb_cBasicObject, "equal?", rb_obj_equal, 1);
|
|
rb_define_method(rb_cBasicObject, "!", rb_obj_not, 0);
|
|
rb_define_method(rb_cBasicObject, "!=", rb_obj_not_equal, 1);
|
|
|
|
rb_define_private_method(rb_cBasicObject, "singleton_method_added", rb_obj_singleton_method_added, 1);
|
|
rb_define_private_method(rb_cBasicObject, "singleton_method_removed", rb_obj_singleton_method_removed, 1);
|
|
rb_define_private_method(rb_cBasicObject, "singleton_method_undefined", rb_obj_singleton_method_undefined, 1);
|
|
|
|
/* Document-module: Kernel
|
|
*
|
|
* The Kernel module is included by class Object, so its methods are
|
|
* available in every Ruby object.
|
|
*
|
|
* The Kernel instance methods are documented in class Object while the
|
|
* module methods are documented here. These methods are called without a
|
|
* receiver and thus can be called in functional form:
|
|
*
|
|
* sprintf "%.1f", 1.234 #=> "1.2"
|
|
*
|
|
* == What's Here
|
|
*
|
|
* \Module \Kernel provides methods that are useful for:
|
|
*
|
|
* - {Converting}[rdoc-ref:Kernel@Converting]
|
|
* - {Querying}[rdoc-ref:Kernel@Querying]
|
|
* - {Exiting}[rdoc-ref:Kernel@Exiting]
|
|
* - {Exceptions}[rdoc-ref:Kernel@Exceptions]
|
|
* - {IO}[rdoc-ref:Kernel@IO]
|
|
* - {Procs}[rdoc-ref:Kernel@Procs]
|
|
* - {Tracing}[rdoc-ref:Kernel@Tracing]
|
|
* - {Subprocesses}[rdoc-ref:Kernel@Subprocesses]
|
|
* - {Loading}[rdoc-ref:Kernel@Loading]
|
|
* - {Yielding}[rdoc-ref:Kernel@Yielding]
|
|
* - {Random Values}[rdoc-ref:Kernel@Random+Values]
|
|
* - {Other}[rdoc-ref:Kernel@Other]
|
|
*
|
|
* === Converting
|
|
*
|
|
* - #Array: Returns an Array based on the given argument.
|
|
* - #Complex: Returns a Complex based on the given arguments.
|
|
* - #Float: Returns a Float based on the given arguments.
|
|
* - #Hash: Returns a Hash based on the given argument.
|
|
* - #Integer: Returns an Integer based on the given arguments.
|
|
* - #Rational: Returns a Rational based on the given arguments.
|
|
* - #String: Returns a String based on the given argument.
|
|
*
|
|
* === Querying
|
|
*
|
|
* - #__callee__: Returns the called name of the current method as a symbol.
|
|
* - #__dir__: Returns the path to the directory from which the current
|
|
* method is called.
|
|
* - #__method__: Returns the name of the current method as a symbol.
|
|
* - #autoload?: Returns the file to be loaded when the given module is referenced.
|
|
* - #binding: Returns a Binding for the context at the point of call.
|
|
* - #block_given?: Returns +true+ if a block was passed to the calling method.
|
|
* - #caller: Returns the current execution stack as an array of strings.
|
|
* - #caller_locations: Returns the current execution stack as an array
|
|
* of Thread::Backtrace::Location objects.
|
|
* - #class: Returns the class of +self+.
|
|
* - #frozen?: Returns whether +self+ is frozen.
|
|
* - #global_variables: Returns an array of global variables as symbols.
|
|
* - #local_variables: Returns an array of local variables as symbols.
|
|
* - #test: Performs specified tests on the given single file or pair of files.
|
|
*
|
|
* === Exiting
|
|
*
|
|
* - #abort: Exits the current process after printing the given arguments.
|
|
* - #at_exit: Executes the given block when the process exits.
|
|
* - #exit: Exits the current process after calling any registered
|
|
* +at_exit+ handlers.
|
|
* - #exit!: Exits the current process without calling any registered
|
|
* +at_exit+ handlers.
|
|
*
|
|
* === Exceptions
|
|
*
|
|
* - #catch: Executes the given block, possibly catching a thrown object.
|
|
* - #raise (aliased as #fail): Raises an exception based on the given arguments.
|
|
* - #throw: Returns from the active catch block waiting for the given tag.
|
|
*
|
|
*
|
|
* === \IO
|
|
*
|
|
* - ::pp: Prints the given objects in pretty form.
|
|
* - #gets: Returns and assigns to <tt>$_</tt> the next line from the current input.
|
|
* - #open: Creates an IO object connected to the given stream, file, or subprocess.
|
|
* - #p: Prints the given objects' inspect output to the standard output.
|
|
* - #print: Prints the given objects to standard output without a newline.
|
|
* - #printf: Prints the string resulting from applying the given format string
|
|
* to any additional arguments.
|
|
* - #putc: Equivalent to <tt.$stdout.putc(object)</tt> for the given object.
|
|
* - #puts: Equivalent to <tt>$stdout.puts(*objects)</tt> for the given objects.
|
|
* - #readline: Similar to #gets, but raises an exception at the end of file.
|
|
* - #readlines: Returns an array of the remaining lines from the current input.
|
|
* - #select: Same as IO.select.
|
|
*
|
|
* === Procs
|
|
*
|
|
* - #lambda: Returns a lambda proc for the given block.
|
|
* - #proc: Returns a new Proc; equivalent to Proc.new.
|
|
*
|
|
* === Tracing
|
|
*
|
|
* - #set_trace_func: Sets the given proc as the handler for tracing,
|
|
* or disables tracing if given +nil+.
|
|
* - #trace_var: Starts tracing assignments to the given global variable.
|
|
* - #untrace_var: Disables tracing of assignments to the given global variable.
|
|
*
|
|
* === Subprocesses
|
|
*
|
|
* - {\`command`}[rdoc-ref:Kernel#`]: Returns the standard output of running
|
|
* +command+ in a subshell.
|
|
* - #exec: Replaces current process with a new process.
|
|
* - #fork: Forks the current process into two processes.
|
|
* - #spawn: Executes the given command and returns its pid without waiting
|
|
* for completion.
|
|
* - #system: Executes the given command in a subshell.
|
|
*
|
|
* === Loading
|
|
*
|
|
* - #autoload: Registers the given file to be loaded when the given constant
|
|
* is first referenced.
|
|
* - #load: Loads the given Ruby file.
|
|
* - #require: Loads the given Ruby file unless it has already been loaded.
|
|
* - #require_relative: Loads the Ruby file path relative to the calling file,
|
|
* unless it has already been loaded.
|
|
*
|
|
* === Yielding
|
|
*
|
|
* - #tap: Yields +self+ to the given block; returns +self+.
|
|
* - #then (aliased as #yield_self): Yields +self+ to the block
|
|
* and returns the result of the block.
|
|
*
|
|
* === \Random Values
|
|
*
|
|
* - #rand: Returns a pseudo-random floating point number
|
|
* strictly between 0.0 and 1.0.
|
|
* - #srand: Seeds the pseudo-random number generator with the given number.
|
|
*
|
|
* === Other
|
|
*
|
|
* - #eval: Evaluates the given string as Ruby code.
|
|
* - #loop: Repeatedly executes the given block.
|
|
* - #sleep: Suspends the current thread for the given number of seconds.
|
|
* - #sprintf (aliased as #format): Returns the string resulting from applying
|
|
* the given format string to any additional arguments.
|
|
* - #syscall: Runs an operating system call.
|
|
* - #trap: Specifies the handling of system signals.
|
|
* - #warn: Issue a warning based on the given messages and options.
|
|
*
|
|
*/
|
|
rb_mKernel = rb_define_module("Kernel");
|
|
rb_include_module(rb_cObject, rb_mKernel);
|
|
rb_define_private_method(rb_cClass, "inherited", rb_obj_class_inherited, 1);
|
|
rb_define_private_method(rb_cModule, "included", rb_obj_mod_included, 1);
|
|
rb_define_private_method(rb_cModule, "extended", rb_obj_mod_extended, 1);
|
|
rb_define_private_method(rb_cModule, "prepended", rb_obj_mod_prepended, 1);
|
|
rb_define_private_method(rb_cModule, "method_added", rb_obj_mod_method_added, 1);
|
|
rb_define_private_method(rb_cModule, "const_added", rb_obj_mod_const_added, 1);
|
|
rb_define_private_method(rb_cModule, "method_removed", rb_obj_mod_method_removed, 1);
|
|
rb_define_private_method(rb_cModule, "method_undefined", rb_obj_mod_method_undefined, 1);
|
|
|
|
rb_define_method(rb_mKernel, "nil?", rb_false, 0);
|
|
rb_define_method(rb_mKernel, "===", case_equal, 1);
|
|
rb_define_method(rb_mKernel, "!~", rb_obj_not_match, 1);
|
|
rb_define_method(rb_mKernel, "eql?", rb_obj_equal, 1);
|
|
rb_define_method(rb_mKernel, "hash", rb_obj_hash, 0); /* in hash.c */
|
|
rb_define_method(rb_mKernel, "<=>", rb_obj_cmp, 1);
|
|
|
|
rb_define_method(rb_mKernel, "singleton_class", rb_obj_singleton_class, 0);
|
|
rb_define_method(rb_mKernel, "dup", rb_obj_dup, 0);
|
|
rb_define_method(rb_mKernel, "itself", rb_obj_itself, 0);
|
|
rb_define_method(rb_mKernel, "initialize_copy", rb_obj_init_copy, 1);
|
|
rb_define_method(rb_mKernel, "initialize_dup", rb_obj_init_dup_clone, 1);
|
|
rb_define_method(rb_mKernel, "initialize_clone", rb_obj_init_clone, -1);
|
|
|
|
rb_define_method(rb_mKernel, "freeze", rb_obj_freeze, 0);
|
|
|
|
rb_define_method(rb_mKernel, "to_s", rb_any_to_s, 0);
|
|
rb_define_method(rb_mKernel, "inspect", rb_obj_inspect, 0);
|
|
rb_define_method(rb_mKernel, "methods", rb_obj_methods, -1); /* in class.c */
|
|
rb_define_method(rb_mKernel, "singleton_methods", rb_obj_singleton_methods, -1); /* in class.c */
|
|
rb_define_method(rb_mKernel, "protected_methods", rb_obj_protected_methods, -1); /* in class.c */
|
|
rb_define_method(rb_mKernel, "private_methods", rb_obj_private_methods, -1); /* in class.c */
|
|
rb_define_method(rb_mKernel, "public_methods", rb_obj_public_methods, -1); /* in class.c */
|
|
rb_define_method(rb_mKernel, "instance_variables", rb_obj_instance_variables, 0); /* in variable.c */
|
|
rb_define_method(rb_mKernel, "instance_variable_get", rb_obj_ivar_get, 1);
|
|
rb_define_method(rb_mKernel, "instance_variable_set", rb_obj_ivar_set_m, 2);
|
|
rb_define_method(rb_mKernel, "instance_variable_defined?", rb_obj_ivar_defined, 1);
|
|
rb_define_method(rb_mKernel, "remove_instance_variable",
|
|
rb_obj_remove_instance_variable, 1); /* in variable.c */
|
|
|
|
rb_define_method(rb_mKernel, "instance_of?", rb_obj_is_instance_of, 1);
|
|
rb_define_method(rb_mKernel, "kind_of?", rb_obj_is_kind_of, 1);
|
|
rb_define_method(rb_mKernel, "is_a?", rb_obj_is_kind_of, 1);
|
|
|
|
rb_define_global_function("sprintf", f_sprintf, -1);
|
|
rb_define_global_function("format", f_sprintf, -1);
|
|
|
|
rb_define_global_function("Integer", rb_f_integer, -1);
|
|
|
|
rb_define_global_function("String", rb_f_string, 1);
|
|
rb_define_global_function("Array", rb_f_array, 1);
|
|
rb_define_global_function("Hash", rb_f_hash, 1);
|
|
|
|
rb_cNilClass = rb_define_class("NilClass", rb_cObject);
|
|
rb_cNilClass_to_s = rb_fstring_enc_lit("", rb_usascii_encoding());
|
|
rb_gc_register_mark_object(rb_cNilClass_to_s);
|
|
rb_define_method(rb_cNilClass, "to_s", rb_nil_to_s, 0);
|
|
rb_define_method(rb_cNilClass, "to_a", nil_to_a, 0);
|
|
rb_define_method(rb_cNilClass, "to_h", nil_to_h, 0);
|
|
rb_define_method(rb_cNilClass, "inspect", nil_inspect, 0);
|
|
rb_define_method(rb_cNilClass, "=~", nil_match, 1);
|
|
rb_define_method(rb_cNilClass, "&", false_and, 1);
|
|
rb_define_method(rb_cNilClass, "|", false_or, 1);
|
|
rb_define_method(rb_cNilClass, "^", false_xor, 1);
|
|
rb_define_method(rb_cNilClass, "===", case_equal, 1);
|
|
|
|
rb_define_method(rb_cNilClass, "nil?", rb_true, 0);
|
|
rb_undef_alloc_func(rb_cNilClass);
|
|
rb_undef_method(CLASS_OF(rb_cNilClass), "new");
|
|
|
|
rb_define_method(rb_cModule, "freeze", rb_mod_freeze, 0);
|
|
rb_define_method(rb_cModule, "===", rb_mod_eqq, 1);
|
|
rb_define_method(rb_cModule, "==", rb_obj_equal, 1);
|
|
rb_define_method(rb_cModule, "<=>", rb_mod_cmp, 1);
|
|
rb_define_method(rb_cModule, "<", rb_mod_lt, 1);
|
|
rb_define_method(rb_cModule, "<=", rb_class_inherited_p, 1);
|
|
rb_define_method(rb_cModule, ">", rb_mod_gt, 1);
|
|
rb_define_method(rb_cModule, ">=", rb_mod_ge, 1);
|
|
rb_define_method(rb_cModule, "initialize_copy", rb_mod_init_copy, 1); /* in class.c */
|
|
rb_define_method(rb_cModule, "to_s", rb_mod_to_s, 0);
|
|
rb_define_alias(rb_cModule, "inspect", "to_s");
|
|
rb_define_method(rb_cModule, "included_modules", rb_mod_included_modules, 0); /* in class.c */
|
|
rb_define_method(rb_cModule, "include?", rb_mod_include_p, 1); /* in class.c */
|
|
rb_define_method(rb_cModule, "name", rb_mod_name, 0); /* in variable.c */
|
|
rb_define_method(rb_cModule, "set_temporary_name", rb_mod_set_temporary_name, 1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "ancestors", rb_mod_ancestors, 0); /* in class.c */
|
|
|
|
rb_define_method(rb_cModule, "attr", rb_mod_attr, -1);
|
|
rb_define_method(rb_cModule, "attr_reader", rb_mod_attr_reader, -1);
|
|
rb_define_method(rb_cModule, "attr_writer", rb_mod_attr_writer, -1);
|
|
rb_define_method(rb_cModule, "attr_accessor", rb_mod_attr_accessor, -1);
|
|
|
|
rb_define_alloc_func(rb_cModule, rb_module_s_alloc);
|
|
rb_undef_method(rb_singleton_class(rb_cModule), "allocate");
|
|
rb_define_method(rb_cModule, "initialize", rb_mod_initialize, 0);
|
|
rb_define_method(rb_cModule, "initialize_clone", rb_mod_initialize_clone, -1);
|
|
rb_define_method(rb_cModule, "instance_methods", rb_class_instance_methods, -1); /* in class.c */
|
|
rb_define_method(rb_cModule, "public_instance_methods",
|
|
rb_class_public_instance_methods, -1); /* in class.c */
|
|
rb_define_method(rb_cModule, "protected_instance_methods",
|
|
rb_class_protected_instance_methods, -1); /* in class.c */
|
|
rb_define_method(rb_cModule, "private_instance_methods",
|
|
rb_class_private_instance_methods, -1); /* in class.c */
|
|
rb_define_method(rb_cModule, "undefined_instance_methods",
|
|
rb_class_undefined_instance_methods, 0); /* in class.c */
|
|
|
|
rb_define_method(rb_cModule, "constants", rb_mod_constants, -1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "const_get", rb_mod_const_get, -1);
|
|
rb_define_method(rb_cModule, "const_set", rb_mod_const_set, 2);
|
|
rb_define_method(rb_cModule, "const_defined?", rb_mod_const_defined, -1);
|
|
rb_define_method(rb_cModule, "const_source_location", rb_mod_const_source_location, -1);
|
|
rb_define_private_method(rb_cModule, "remove_const",
|
|
rb_mod_remove_const, 1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "const_missing",
|
|
rb_mod_const_missing, 1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "class_variables",
|
|
rb_mod_class_variables, -1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "remove_class_variable",
|
|
rb_mod_remove_cvar, 1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "class_variable_get", rb_mod_cvar_get, 1);
|
|
rb_define_method(rb_cModule, "class_variable_set", rb_mod_cvar_set, 2);
|
|
rb_define_method(rb_cModule, "class_variable_defined?", rb_mod_cvar_defined, 1);
|
|
rb_define_method(rb_cModule, "public_constant", rb_mod_public_constant, -1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "private_constant", rb_mod_private_constant, -1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "deprecate_constant", rb_mod_deprecate_constant, -1); /* in variable.c */
|
|
rb_define_method(rb_cModule, "singleton_class?", rb_mod_singleton_p, 0);
|
|
|
|
rb_define_method(rb_singleton_class(rb_cClass), "allocate", rb_class_alloc_m, 0);
|
|
rb_define_method(rb_cClass, "allocate", rb_class_alloc_m, 0);
|
|
rb_define_method(rb_cClass, "new", rb_class_new_instance_pass_kw, -1);
|
|
rb_define_method(rb_cClass, "initialize", rb_class_initialize, -1);
|
|
rb_define_method(rb_cClass, "superclass", rb_class_superclass, 0);
|
|
rb_define_method(rb_cClass, "subclasses", rb_class_subclasses, 0); /* in class.c */
|
|
rb_define_method(rb_cClass, "attached_object", rb_class_attached_object, 0); /* in class.c */
|
|
rb_define_alloc_func(rb_cClass, rb_class_s_alloc);
|
|
rb_undef_method(rb_cClass, "extend_object");
|
|
rb_undef_method(rb_cClass, "append_features");
|
|
rb_undef_method(rb_cClass, "prepend_features");
|
|
|
|
rb_cTrueClass = rb_define_class("TrueClass", rb_cObject);
|
|
rb_cTrueClass_to_s = rb_fstring_enc_lit("true", rb_usascii_encoding());
|
|
rb_gc_register_mark_object(rb_cTrueClass_to_s);
|
|
rb_define_method(rb_cTrueClass, "to_s", rb_true_to_s, 0);
|
|
rb_define_alias(rb_cTrueClass, "inspect", "to_s");
|
|
rb_define_method(rb_cTrueClass, "&", true_and, 1);
|
|
rb_define_method(rb_cTrueClass, "|", true_or, 1);
|
|
rb_define_method(rb_cTrueClass, "^", true_xor, 1);
|
|
rb_define_method(rb_cTrueClass, "===", case_equal, 1);
|
|
rb_undef_alloc_func(rb_cTrueClass);
|
|
rb_undef_method(CLASS_OF(rb_cTrueClass), "new");
|
|
|
|
rb_cFalseClass = rb_define_class("FalseClass", rb_cObject);
|
|
rb_cFalseClass_to_s = rb_fstring_enc_lit("false", rb_usascii_encoding());
|
|
rb_gc_register_mark_object(rb_cFalseClass_to_s);
|
|
rb_define_method(rb_cFalseClass, "to_s", rb_false_to_s, 0);
|
|
rb_define_alias(rb_cFalseClass, "inspect", "to_s");
|
|
rb_define_method(rb_cFalseClass, "&", false_and, 1);
|
|
rb_define_method(rb_cFalseClass, "|", false_or, 1);
|
|
rb_define_method(rb_cFalseClass, "^", false_xor, 1);
|
|
rb_define_method(rb_cFalseClass, "===", case_equal, 1);
|
|
rb_undef_alloc_func(rb_cFalseClass);
|
|
rb_undef_method(CLASS_OF(rb_cFalseClass), "new");
|
|
}
|
|
|
|
#include "kernel.rbinc"
|
|
#include "nilclass.rbinc"
|
|
|
|
void
|
|
Init_Object(void)
|
|
{
|
|
id_dig = rb_intern_const("dig");
|
|
InitVM(Object);
|
|
}
|
|
|
|
/*!
|
|
* \}
|
|
*/
|