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hide iseq operand object for duphash. [Bug #15440]

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* compile.c (compile_array): hide source Hash object.

* hash.c (rb_hash_resurrect): introduced to dup Hash object
  using rb_cHash.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66466 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2018-12-20 07:17:55 +00:00
parent fe8475d7df
commit 2a70f68c05
5 changed files with 14 additions and 9 deletions
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3
compile.c
View file

@ -4026,8 +4026,7 @@ compile_array(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *const node_ro
hash = rb_hash_new_with_size(RARRAY_LEN(ary) / 2);
rb_hash_bulk_insert(RARRAY_LEN(ary), RARRAY_CONST_PTR_TRANSIENT(ary), hash);
rb_hash_freeze(hash);
iseq_add_mark_object_compile_time(iseq, hash);
iseq_add_mark_object_compile_time(iseq, rb_obj_hide(hash));
ADD_INSN1(ret, line, duphash, hash);
}
}

7
hash.c
View file

@ -1310,6 +1310,13 @@ rb_hash_dup(VALUE hash)
return ret;
}
MJIT_FUNC_EXPORTED VALUE
rb_hash_resurrect(VALUE hash)
{
VALUE ret = hash_dup(hash, rb_cHash, 0);
return ret;
}
static void
rb_hash_modify_check(VALUE hash)
{

2
insns.def
View file

@ -461,7 +461,7 @@ duphash
()
(VALUE val)
{
val = rb_hash_dup(hash);
val = rb_hash_resurrect(hash);
}
/* if TOS is an array expand, expand it to num objects.

1
internal.h
View file

@ -1573,6 +1573,7 @@ VALUE rb_hash_key_str(VALUE);
VALUE rb_hash_keys(VALUE hash);
VALUE rb_hash_values(VALUE hash);
VALUE rb_hash_rehash(VALUE hash);
VALUE rb_hash_resurrect(VALUE hash);
int rb_hash_add_new_element(VALUE hash, VALUE key, VALUE val);
VALUE rb_hash_set_pair(VALUE hash, VALUE pair);
void rb_hash_bulk_insert(long, const VALUE *, VALUE);

10
test/ruby/test_literal.rb
View file

@ -290,12 +290,10 @@ class TestRubyLiteral < Test::Unit::TestCase
{0=>1,1=>4,2=>17}
end
assert_not_include frozen_hash_literal_arg, 3
assert_raise(FrozenError) do
ObjectSpace.each_object(Hash) do |a|
if a.class == Hash and !a.default_proc and a.size == 3
a[3] = 8 if a[0] == 1 and a[1] == 4 and a[2] == 17
end
ObjectSpace.each_object(Hash) do |a|
if a.class == Hash and !a.default_proc and a.size == 3
# should not be found.
raise
end
end
assert_not_include frozen_hash_literal_arg, 3