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enum.c: avoid inadvertent symbol creation

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* enum.c (enum_inject): avoid inadvertent symbol creation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-04-04 06:46:53 +00:00
parent 8074844065
commit 9f87297c21
3 changed files with 27 additions and 3 deletions
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4
ChangeLog
View file

@ -1,3 +1,7 @@
Thu Apr 4 15:46:48 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* enum.c (enum_inject): avoid inadvertent symbol creation.
Thu Apr 4 14:37:07 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* thread.c (rb_thread_aref): avoid inadvertent symbol creation.

20
enum.c
View file

@ -17,6 +17,10 @@
#define STATIC_ASSERT(name, expr) typedef int static_assert_##name##_check[1 - 2*!(expr)]
#define numberof(array) (int)(sizeof(array) / sizeof((array)[0]))
VALUE rb_f_send(int argc, VALUE *argv, VALUE recv);
VALUE rb_mEnumerable;
static ID id_next;
@ -527,6 +531,7 @@ static VALUE
inject_op_i(VALUE i, VALUE p, int argc, VALUE *argv)
{
NODE *memo = RNODE(p);
VALUE name;
ENUM_WANT_SVALUE();
@ -534,8 +539,14 @@ inject_op_i(VALUE i, VALUE p, int argc, VALUE *argv)
memo->u2.argc = 1;
memo->u1.value = i;
}
else if (SYMBOL_P(name = memo->u3.value)) {
memo->u1.value = rb_funcall(memo->u1.value, SYM2ID(name), 1, i);
}
else {
memo->u1.value = rb_funcall(memo->u1.value, memo->u3.id, 1, i);
VALUE args[2];
args[0] = name;
args[1] = i;
memo->u1.value = rb_f_send(numberof(args), args, memo->u1.value);
}
return Qnil;
}
@ -589,6 +600,7 @@ enum_inject(int argc, VALUE *argv, VALUE obj)
NODE *memo;
VALUE init, op;
VALUE (*iter)(VALUE, VALUE, int, VALUE*) = inject_i;
ID id;
switch (rb_scan_args(argc, argv, "02", &init, &op)) {
case 0:
@ -597,7 +609,8 @@ enum_inject(int argc, VALUE *argv, VALUE obj)
if (rb_block_given_p()) {
break;
}
op = (VALUE)rb_to_id(init);
id = rb_check_id(&init);
op = id ? ID2SYM(id) : init;
argc = 0;
init = Qnil;
iter = inject_op_i;
@ -606,7 +619,8 @@ enum_inject(int argc, VALUE *argv, VALUE obj)
if (rb_block_given_p()) {
rb_warning("given block not used");
}
op = (VALUE)rb_to_id(op);
id = rb_check_id(&op);
if (id) op = ID2SYM(id);
iter = inject_op_i;
break;
}

6
test/-ext-/symbol/test_inadvertent_creation.rb
View file

@ -187,5 +187,11 @@ module Test_Symbol
assert_not_send([Thread.current, :thread_variable?, name])
assert_not_send([Bug::Symbol, :interned?, name])
end
def test_enumerable_inject_op
name = noninterned_name
assert_raise(NoMethodError) {[1, 2].inject(name)}
assert_not_send([Bug::Symbol, :interned?, name])
end
end
end