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* vm_method.c (basic_obj_respond_to): new function to fundamental

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behavior for #respond_to?

* vm_method.c (basic_obj_respond_to): calls #respond_to_missing
  method if overridden, to check responsiveness of methods
  implemented by #method_missing.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25054 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2009-09-23 08:46:44 +00:00
parent bda0b012a8
commit 945f4df6a8
2 changed files with 36 additions and 10 deletions
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9
ChangeLog
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@ -23,6 +23,15 @@ Wed Sep 23 05:03:36 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
Module#define_method, even when that singleton class was of the right
kind_of. A patch by Shane O'Brien [ruby-core:25632]
Tue Sep 22 22:56:48 2009 Yukihiro Matsumoto <matz@ruby-lang.org>
* vm_method.c (basic_obj_respond_to): new function to fundamental
behavior for #respond_to?
* vm_method.c (basic_obj_respond_to): calls #respond_to_missing
method if overridden, to check responsiveness of methods
implemented by #method_missing.
Tue Sep 22 16:34:33 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
* st.c (st_table_entry, st_get_key): use st_index_t.

37
vm_method.c
View file

@ -8,7 +8,7 @@
static void rb_vm_check_redefinition_opt_method(const rb_method_entry_t *me);
static ID object_id;
static ID object_id, respond_to_missing;
static ID removed, singleton_removed, undefined, singleton_undefined;
static ID added, singleton_added, attached;
@ -1114,21 +1114,30 @@ rb_method_basic_definition_p(VALUE klass, ID id)
return 0;
}
static inline int
basic_obj_respond_to(VALUE obj, ID id, int pub)
{
VALUE klass = CLASS_OF(obj);
if (!rb_method_boundp(klass, id, pub)) {
if (!rb_method_basic_definition_p(klass, respond_to_missing)) {
return RTEST(rb_funcall(obj, respond_to_missing, pub ? 1 : 2, ID2SYM(id), Qtrue));
}
return Qfalse;
}
return Qtrue;
}
int
rb_obj_respond_to(VALUE obj, ID id, int priv)
{
VALUE klass = CLASS_OF(obj);
if (rb_method_basic_definition_p(klass, idRespond_to)) {
return rb_method_boundp(klass, id, !priv);
return basic_obj_respond_to(obj, id, !RTEST(priv));
}
else {
VALUE args[2];
int n = 0;
args[n++] = ID2SYM(id);
if (priv)
args[n++] = Qtrue;
return RTEST(rb_funcall2(obj, idRespond_to, n, args));
return RTEST(rb_funcall(obj, idRespond_to, priv ? 2 : 1, ID2SYM(id), Qtrue));
}
}
@ -1138,6 +1147,7 @@ rb_respond_to(VALUE obj, ID id)
return rb_obj_respond_to(obj, id, FALSE);
}
/*
* call-seq:
* obj.respond_to?(symbol, include_private=false) => true or false
@ -1159,9 +1169,14 @@ obj_respond_to(int argc, VALUE *argv, VALUE obj)
rb_scan_args(argc, argv, "11", &mid, &priv);
id = rb_to_id(mid);
if (rb_method_boundp(CLASS_OF(obj), id, !RTEST(priv))) {
if (basic_obj_respond_to(obj, id, !RTEST(priv)))
return Qtrue;
}
return Qfalse;
}
static VALUE
obj_respond_to_missing(int argc, VALUE *argv, VALUE obj)
{
return Qfalse;
}
@ -1172,6 +1187,7 @@ Init_eval_method(void)
#define rb_intern(str) rb_intern_const(str)
rb_define_method(rb_mKernel, "respond_to?", obj_respond_to, -1);
rb_define_method(rb_mKernel, "respond_to_missing?", obj_respond_to_missing, -1);
rb_define_private_method(rb_cModule, "remove_method", rb_mod_remove_method, -1);
rb_define_private_method(rb_cModule, "undef_method", rb_mod_undef_method, -1);
@ -1199,5 +1215,6 @@ Init_eval_method(void)
undefined = rb_intern("method_undefined");
singleton_undefined = rb_intern("singleton_method_undefined");
attached = rb_intern("__attached__");
respond_to_missing = rb_intern("respond_to_missing?");
}