Revision: 22132
Author: [email protected]
Date: Tue Jul 1 15:47:41 2014 UTC
Log: Make freeze & friends ignore private properties
[email protected]
BUG=v8:3419
LOG=Y
Review URL: https://codereview.chromium.org/355123006
http://code.google.com/p/v8/source/detail?r=22132
Modified:
/branches/bleeding_edge/src/objects.cc
/branches/bleeding_edge/test/cctest/test-types.cc
/branches/bleeding_edge/test/mjsunit/harmony/private.js
=======================================
--- /branches/bleeding_edge/src/objects.cc Tue Jul 1 15:02:31 2014 UTC
+++ /branches/bleeding_edge/src/objects.cc Tue Jul 1 15:47:41 2014 UTC
@@ -5679,7 +5679,8 @@
int capacity = dictionary->Capacity();
for (int i = 0; i < capacity; i++) {
Object* k = dictionary->KeyAt(i);
- if (dictionary->IsKey(k)) {
+ if (dictionary->IsKey(k) &&
+ !(k->IsSymbol() && Symbol::cast(k)->is_private())) {
PropertyDetails details = dictionary->DetailsAt(i);
int attrs = DONT_DELETE;
// READ_ONLY is an invalid attribute for JS setters/getters.
@@ -7453,17 +7454,20 @@
if (attributes != NONE) {
for (int i = 0; i < size; ++i) {
Object* value = desc->GetValue(i);
+ Name* key = desc->GetKey(i);
PropertyDetails details = desc->GetDetails(i);
- int mask = DONT_DELETE | DONT_ENUM;
- // READ_ONLY is an invalid attribute for JS setters/getters.
- if (details.type() != CALLBACKS || !value->IsAccessorPair()) {
- mask |= READ_ONLY;
+ // Bulk attribute changes never affect private properties.
+ if (!key->IsSymbol() || !Symbol::cast(key)->is_private()) {
+ int mask = DONT_DELETE | DONT_ENUM;
+ // READ_ONLY is an invalid attribute for JS setters/getters.
+ if (details.type() != CALLBACKS || !value->IsAccessorPair()) {
+ mask |= READ_ONLY;
+ }
+ details = details.CopyAddAttributes(
+ static_cast<PropertyAttributes>(attributes & mask));
}
- details = details.CopyAddAttributes(
- static_cast<PropertyAttributes>(attributes & mask));
- Descriptor inner_desc(handle(desc->GetKey(i)),
- handle(value, desc->GetIsolate()),
- details);
+ Descriptor inner_desc(
+ handle(key), handle(value, desc->GetIsolate()), details);
descriptors->Set(i, &inner_desc, witness);
}
} else {
=======================================
--- /branches/bleeding_edge/test/cctest/test-types.cc Mon Jun 30 13:25:46
2014 UTC
+++ /branches/bleeding_edge/test/cctest/test-types.cc Tue Jul 1 15:47:41
2014 UTC
@@ -180,7 +180,7 @@
NumberFunction2 = Type::Function(Number, Number, Number, region);
MethodFunction = Type::Function(String, Object, 0, region);
- for (int i = 0; i < 50; ++i) {
+ for (int i = 0; i < 40; ++i) {
types.push_back(Fuzz());
}
}
=======================================
--- /branches/bleeding_edge/test/mjsunit/harmony/private.js Tue May 6
14:48:34 2014 UTC
+++ /branches/bleeding_edge/test/mjsunit/harmony/private.js Tue Jul 1
15:47:41 2014 UTC
@@ -342,3 +342,18 @@
assertEquals(syms, [publicSymbol, publicSymbol2])
}
TestGetOwnPropertySymbols()
+
+
+function TestSealAndFreeze(freeze) {
+ var sym = %CreatePrivateSymbol("private")
+ var obj = {}
+ obj[sym] = 1
+ freeze(obj)
+ obj[sym] = 2
+ assertEquals(2, obj[sym])
+ assertTrue(delete obj[sym])
+ assertEquals(undefined, obj[sym])
+}
+TestSealAndFreeze(Object.seal)
+TestSealAndFreeze(Object.freeze)
+TestSealAndFreeze(Object.preventExtensions)
--
--
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