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Remove always-on flag --harmony-strict-legacy-accessor-builtins

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It was shipped in Chrome 62.

Bug: v8:5070
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I77119540411d1fe15691d40012cb96f4e2e45048
Reviewed-on: https://chromium-review.googlesource.com/776154
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49434}
This commit is contained in:
Adam Klein 2017-11-16 16:29:29 -08:00 committed by Commit Bot
parent b5997de8a9
commit 6e39c9e1a7
8 changed files with 12 additions and 195 deletions
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1
src/bootstrapper.cc
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@ -4270,7 +4270,6 @@ EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_dynamic_import)
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_import_meta)
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_template_escapes)
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_restrict_constructor_return)
EMPTY_INITIALIZE_GLOBAL_FOR_FEATURE(harmony_strict_legacy_accessor_builtins)
void InstallPublicSymbol(Factory* factory, Handle<Context> native_context,
const char* name, Handle<Symbol> value) {

20
src/builtins/builtins-object.cc
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@ -86,11 +86,8 @@ Object* ObjectDefineAccessor(Isolate* isolate, Handle<Object> object,
Handle<Object> name, Handle<Object> accessor) {
// 1. Let O be ? ToObject(this value).
Handle<JSReceiver> receiver;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
isolate, receiver,
FLAG_harmony_strict_legacy_accessor_builtins
? Object::ToObject(isolate, object)
: Object::ConvertReceiver(isolate, object));
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, receiver,
Object::ToObject(isolate, object));
// 2. If IsCallable(getter) is false, throw a TypeError exception.
if (!accessor->IsCallable()) {
MessageTemplate::Template message =
@ -116,10 +113,8 @@ Object* ObjectDefineAccessor(Isolate* isolate, Handle<Object> object,
// 5. Perform ? DefinePropertyOrThrow(O, key, desc).
// To preserve legacy behavior, we ignore errors silently rather than
// throwing an exception.
Maybe<bool> success = JSReceiver::DefineOwnProperty(
isolate, receiver, name, &desc,
FLAG_harmony_strict_legacy_accessor_builtins ? kThrowOnError
: kDontThrow);
Maybe<bool> success = JSReceiver::DefineOwnProperty(isolate, receiver, name,
&desc, kThrowOnError);
MAYBE_RETURN(success, isolate->heap()->exception());
if (!success.FromJust()) {
isolate->CountUsage(v8::Isolate::kDefineGetterOrSetterWouldThrow);
@ -130,11 +125,8 @@ Object* ObjectDefineAccessor(Isolate* isolate, Handle<Object> object,
Object* ObjectLookupAccessor(Isolate* isolate, Handle<Object> object,
Handle<Object> key, AccessorComponent component) {
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
isolate, object,
FLAG_harmony_strict_legacy_accessor_builtins
? Object::ToObject(isolate, object)
: Object::ConvertReceiver(isolate, object));
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, object,
Object::ToObject(isolate, object));
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, key,
Object::ToPropertyKey(isolate, key));
bool success = false;

2
src/flag-definitions.h
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@ -210,8 +210,6 @@ DEFINE_IMPLICATION(harmony_import_meta, harmony_dynamic_import)
// Features that are shipping (turned on by default, but internal flag remains).
#define HARMONY_SHIPPING_BASE(V) \
V(harmony_strict_legacy_accessor_builtins, \
"treat __defineGetter__ and related functions as strict") \
V(harmony_sharedarraybuffer, "harmony sharedarraybuffer") \
V(harmony_regexp_dotall, "harmony regexp dotAll flag") \
V(harmony_regexp_lookbehind, "harmony regexp lookbehind") \

106
test/cctest/test-usecounters.cc
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@ -17,63 +17,6 @@ void MockUseCounterCallback(v8::Isolate* isolate,
++global_use_counts[feature];
}
TEST(DefineGetterSetterThrowUseCount) {
i::FLAG_harmony_strict_legacy_accessor_builtins = false;
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope scope(isolate);
LocalContext env;
int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
global_use_counts = use_counts;
CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
// __defineGetter__ and __defineSetter__ do not increment
// kDefineGetterOrSetterWouldThrow on success
CompileRun(
"var a = {};"
"Object.defineProperty(a, 'b', { value: 0, configurable: true });"
"a.__defineGetter__('b', ()=>{});");
CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
CompileRun(
"var a = {};"
"Object.defineProperty(a, 'b', { value: 0, configurable: true });"
"a.__defineSetter__('b', ()=>{});");
CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
// __defineGetter__ and __defineSetter__ do not increment
// kDefineGetterOrSetterWouldThrow on other errors
v8::Local<v8::Value> resultProxyThrow = CompileRun(
"var exception;"
"try {"
"var a = new Proxy({}, { defineProperty: ()=>{throw new Error;} });"
"a.__defineGetter__('b', ()=>{});"
"} catch (e) { exception = e; }"
"exception");
CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
CHECK(resultProxyThrow->IsObject());
resultProxyThrow = CompileRun(
"var exception;"
"try {"
"var a = new Proxy({}, { defineProperty: ()=>{throw new Error;} });"
"a.__defineSetter__('b', ()=>{});"
"} catch (e) { exception = e; }"
"exception");
CHECK_EQ(0, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
CHECK(resultProxyThrow->IsObject());
// __defineGetter__ and __defineSetter__ increment
// kDefineGetterOrSetterWouldThrow when they would throw per spec (B.2.2.2)
CompileRun(
"var a = {};"
"Object.defineProperty(a, 'b', { value: 0, configurable: false });"
"a.__defineGetter__('b', ()=>{});");
CHECK_EQ(1, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
CompileRun(
"var a = {};"
"Object.defineProperty(a, 'b', { value: 0, configurable: false });"
"a.__defineSetter__('b', ()=>{});");
CHECK_EQ(2, use_counts[v8::Isolate::kDefineGetterOrSetterWouldThrow]);
}
TEST(AssigmentExpressionLHSIsCall) {
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope scope(isolate);
@ -142,55 +85,6 @@ TEST(LabeledExpressionStatement) {
CHECK_EQ(2, use_counts[v8::Isolate::kLabeledExpressionStatement]);
}
TEST(IndexAccessorUseCount) {
i::FLAG_harmony_strict_legacy_accessor_builtins = false;
v8::Isolate* isolate = CcTest::isolate();
v8::HandleScope scope(isolate);
LocalContext env;
int use_counts[v8::Isolate::kUseCounterFeatureCount] = {};
global_use_counts = use_counts;
CcTest::isolate()->SetUseCounterCallback(MockUseCounterCallback);
// Adding accessor to named property does not increment kIndexAccessor
CompileRun(
"var a = {};"
"function dummy(){}"
"Object.defineProperty(a, 'test', { get: dummy, set: dummy });");
CHECK_EQ(0, use_counts[v8::Isolate::kIndexAccessor]);
// Setting index to value does not increment kIndexAccessor
CompileRun(
"var a = {};"
"Object.defineProperty(a, '0', { value: 0 });");
CHECK_EQ(0, use_counts[v8::Isolate::kIndexAccessor]);
// Non-integer number index not increment kIndexAccessor
CompileRun(
"var a = {};"
"Object.defineProperty(a, '2.5', { value: 0 });");
CHECK_EQ(0, use_counts[v8::Isolate::kIndexAccessor]);
// Setting index accessor increments count
CompileRun(
"var a = {};"
"function dummy(){}"
"Object.defineProperty(a, '0', { get : dummy, set : dummy });");
CHECK_EQ(1, use_counts[v8::Isolate::kIndexAccessor]);
// Setting index accessor on array increments count
CompileRun(
"var a = [];"
"function dummy(){}"
"Object.defineProperty(a, '0', { get : dummy, set : dummy });");
CHECK_EQ(2, use_counts[v8::Isolate::kIndexAccessor]);
// __defineGetter__ increments count
CompileRun(
"var a = [];"
"function dummy(){}"
"a.__defineGetter__('0', dummy);");
CHECK_EQ(3, use_counts[v8::Isolate::kIndexAccessor]);
}
} // namespace test_usecounters
} // namespace internal
} // namespace v8

10
test/mjsunit/global-accessors.js
View File

@ -26,16 +26,14 @@
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Test accessors on the global object.
//
// Flags: --no-harmony-strict-legacy-accessor-builtins
var x_ = 0;
__defineSetter__('x', function(x) { x_ = x; });
__defineGetter__('x', function() { return x_; });
this.__defineSetter__('x', function(x) { x_ = x; });
this.__defineGetter__('x', function() { return x_; });
__defineSetter__('y', function(x) { });
__defineGetter__('y', function() { return 7; });
this.__defineSetter__('y', function(x) { });
this.__defineGetter__('y', function() { return 7; });
function f(a) {
x = x + a;

54
test/mjsunit/harmony/global-accessors-strict.js
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@ -1,54 +0,0 @@
// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Test accessors on the global object.
//
// Flags: --harmony-strict-legacy-accessor-builtins
var x_ = 0;
this.__defineSetter__('x', function(x) { x_ = x; });
this.__defineGetter__('x', function() { return x_; });
this.__defineSetter__('y', function(x) { });
this.__defineGetter__('y', function() { return 7; });
function f(a) {
x = x + a;
return x;
}
function g(a) {
y = y + a;
return y;
}
assertEquals(1, f(1));
assertEquals(3, f(2));
assertEquals(7, g(1));
assertEquals(7, g(2));

4
test/mozilla/mozilla.status
View File

@ -811,8 +811,8 @@
# error message in debug mode.
'js1_5/extensions/regress-336410-1': [FAIL_OK, ['mode == debug and arch == x64', NO_VARIANTS]],
# These tests fail when --harmony-strict-legacy-accessor-builtins
# is enabled.
# These tests fail due to __defineGetter__ & friends throwing
# for undefined receivers.
'js1_5/extensions/regress-313500': [SKIP],
'js1_5/extensions/regress-325269': [SKIP],

10
test/test262/test262.status
View File

@ -240,16 +240,6 @@
'built-ins/TypedArrays/internals/DefineOwnProperty/conversion-operation-consistent-nan': [PASS, FAIL],
'built-ins/TypedArrays/internals/Set/conversion-operation-consistent-nan': [PASS, FAIL],
# https://bugs.chromium.org/p/v8/issues/detail?id=5070
'annexB/built-ins/Object/prototype/__defineGetter__/define-non-configurable': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__defineGetter__/define-non-extensible': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__defineGetter__/this-non-obj': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__defineSetter__/define-non-configurable': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__defineSetter__/define-non-extensible': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__defineSetter__/this-non-obj': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__lookupGetter__/this-non-obj': ['--harmony-strict-legacy-accessor-builtins'],
'annexB/built-ins/Object/prototype/__lookupSetter__/this-non-obj': ['--harmony-strict-legacy-accessor-builtins'],
# https://bugs.chromium.org/p/v8/issues/detail?id=4451
# https://github.com/tc39/ecma262/issues/753
'annexB/language/eval-code/direct/global-block-decl-eval-global-existing-global-init': [FAIL],