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parse.y: should not eliminate value nodes

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* parse.y (remove_duplicate_keys): should not simply eliminate all
  value nodes, which may have side effects.
  [ruby-core:65625] [Bug #10315]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47894 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-10-12 17:39:29 +00:00
parent 7fa39b2762
commit 37d0c873f6
3 changed files with 36 additions and 14 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Mon Oct 13 02:39:26 2014 Nobuyoshi Nakada <nobu@ruby-lang.org>
* parse.y (remove_duplicate_keys): should not simply eliminate all
value nodes, which may have side effects.
[ruby-core:65625] [Bug #10315]
Sun Oct 12 10:39:16 2014 Zachary Scott <e@zzak.io>
* vm.c: [DOC] fix typo by @yui-knk [Fixes GH-738]

29
parse.y
View file

@ -9601,9 +9601,6 @@ append_literal_keys(st_data_t k, st_data_t v, st_data_t h)
{
NODE *node = (NODE *)v;
NODE **result = (NODE **)h;
node->nd_alen = 2;
node->nd_next->nd_end = node->nd_next;
node->nd_next->nd_next = 0;
if (*result)
list_concat(*result, node);
else
@ -9618,21 +9615,25 @@ remove_duplicate_keys(struct parser_params *parser, NODE *hash)
NODE *result = 0;
while (hash && hash->nd_head && hash->nd_next) {
NODE *head = hash->nd_head;
VALUE key = 0;
NODE *value = hash->nd_next;
NODE *next = value->nd_next;
VALUE key = (VALUE)head;
st_data_t data;
if (nd_type(head) == NODE_LIT) {
key = head->nd_lit;
if (st_lookup(literal_keys, key, &data)) {
rb_compile_warn(ruby_sourcefile, nd_line((NODE *)data),
"duplicated key at line %d ignored: %+"PRIsVALUE,
nd_line(head), head->nd_lit);
}
hash->nd_alen = 2;
value->nd_end = value;
value->nd_next = 0;
if (nd_type(head) == NODE_LIT &&
st_lookup(literal_keys, (key = head->nd_lit), &data)) {
rb_compile_warn(ruby_sourcefile, nd_line((NODE *)data),
"duplicated key at line %d ignored: %+"PRIsVALUE,
nd_line(head), head->nd_lit);
head = ((NODE *)data)->nd_next;
head->nd_head = block_append(head->nd_head, value->nd_head);
}
else {
key = (VALUE)head;
st_insert(literal_keys, (st_data_t)key, (st_data_t)hash);
}
st_insert(literal_keys, (st_data_t)key, (st_data_t)hash);
hash = hash->nd_next->nd_next;
hash = next;
}
st_foreach(literal_keys, append_literal_keys, (st_data_t)&result);
st_free_table(literal_keys);

15
test/ruby/test_syntax.rb
View file

@ -120,6 +120,21 @@ class TestSyntax < Test::Unit::TestCase
assert_raise(ArgumentError) {o.kw(**h)}
h = {"k1"=>11, k2: 12}
assert_raise(TypeError) {o.kw(**h)}
bug10315 = '[ruby-core:65625] [Bug #10315]'
a = []
def a.add(x) push(x); x; end
def a.f(k:) k; end
a.clear
r = nil
assert_warn(/duplicated/) {r = eval("a.f(k: a.add(1), k: a.add(2))")}
assert_equal(2, r)
assert_equal([1, 2], a, bug10315)
a.clear
r = nil
assert_warn(/duplicated/) {r = eval("a.f({k: a.add(1), k: a.add(2)})")}
assert_equal(2, r)
assert_equal([1, 2], a, bug10315)
end
def test_keyword_self_reference