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Unified Diff: src/elements.cc

Issue 2028983002: Introduce IsUndefined(Isolate*) and IsTheHole(Isolate*) (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebase master Created 4 years, 6 months ago
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Index: src/elements.cc
diff --git a/src/elements.cc b/src/elements.cc
index 6814197662e771a2ce9454ff12726763aa87c3af..02f79c60a1d07861c5b3d964d6f390a626893bc4 100644
--- a/src/elements.cc
+++ b/src/elements.cc
@@ -189,7 +189,7 @@ static void CopyDictionaryToObjectElements(
int entry = from->FindEntry(i + from_start);
if (entry != SeededNumberDictionary::kNotFound) {
Object* value = from->ValueAt(entry);
- DCHECK(!value->IsTheHole());
+ DCHECK(!value->IsTheHole(from->GetIsolate()));
to->set(i + to_start, value, write_barrier_mode);
} else {
to->set_the_hole(i + to_start);
@@ -352,7 +352,7 @@ static void CopyPackedSmiToDoubleElements(FixedArrayBase* from_base,
for (uint32_t from_end = from_start + static_cast<uint32_t>(packed_size);
from_start < from_end; from_start++, to_start++) {
Object* smi = from->get(from_start);
- DCHECK(!smi->IsTheHole());
+ DCHECK(!smi->IsTheHole(from->GetIsolate()));
to->set(to_start, Smi::cast(smi)->value());
}
}
@@ -1256,7 +1256,7 @@ class DictionaryElementsAccessor
DisallowHeapAllocation no_gc;
SeededNumberDictionary* dict = SeededNumberDictionary::cast(store);
Object* index = dict->KeyAt(entry);
- return !index->IsTheHole();
+ return !index->IsTheHole(dict->GetIsolate());
}
static uint32_t GetIndexForEntryImpl(FixedArrayBase* store, uint32_t entry) {
@@ -1389,7 +1389,7 @@ class DictionaryElementsAccessor
if (k == *the_hole) continue;
if (dictionary->IsDeleted(i)) continue;
Object* value = dictionary->ValueAt(i);
- DCHECK(!value->IsTheHole());
+ DCHECK(!value->IsTheHole(isolate));
DCHECK(!value->IsAccessorPair());
DCHECK(!value->IsAccessorInfo());
accumulator->AddKey(value, convert);
@@ -1820,7 +1820,7 @@ class FastElementsAccessor : public ElementsAccessorBase<Subclass, KindTraits> {
}
Subclass::SetLengthImpl(isolate, receiver, new_length, backing_store);
- if (IsHoleyElementsKind(kind) && result->IsTheHole()) {
+ if (IsHoleyElementsKind(kind) && result->IsTheHole(isolate)) {
return isolate->factory()->undefined_value();
}
return result;
@@ -1872,7 +1872,7 @@ class FastElementsAccessor : public ElementsAccessorBase<Subclass, KindTraits> {
WriteBarrierMode mode = raw_backing_store->GetWriteBarrierMode(no_gc);
for (uint32_t i = 0; i < copy_size; i++) {
Object* argument = (*args)[src_index + i];
- DCHECK(!argument->IsTheHole());
+ DCHECK(!argument->IsTheHole(raw_backing_store->GetIsolate()));
Subclass::SetImpl(raw_backing_store, dst_index + i, argument, mode);
}
}
@@ -2249,7 +2249,7 @@ class SloppyArgumentsElementsAccessor
Object* probe = parameter_map->get(entry + 2);
Context* context = Context::cast(parameter_map->get(0));
int context_entry = Smi::cast(probe)->value();
- DCHECK(!context->get(context_entry)->IsTheHole());
+ DCHECK(!context->get(context_entry)->IsTheHole(isolate));
return handle(context->get(context_entry), isolate);
} else {
// Object is not mapped, defer to the arguments.
@@ -2261,7 +2261,7 @@ class SloppyArgumentsElementsAccessor
AliasedArgumentsEntry* alias = AliasedArgumentsEntry::cast(*result);
Context* context = Context::cast(parameter_map->get(0));
int context_entry = alias->aliased_context_slot();
- DCHECK(!context->get(context_entry)->IsTheHole());
+ DCHECK(!context->get(context_entry)->IsTheHole(isolate));
return handle(context->get(context_entry), isolate);
}
return result;
@@ -2286,7 +2286,7 @@ class SloppyArgumentsElementsAccessor
Object* probe = parameter_map->get(entry + 2);
Context* context = Context::cast(parameter_map->get(0));
int context_entry = Smi::cast(probe)->value();
- DCHECK(!context->get(context_entry)->IsTheHole());
+ DCHECK(!context->get(context_entry)->IsTheHole(store->GetIsolate()));
context->set(context_entry, value);
} else {
FixedArray* arguments = FixedArray::cast(parameter_map->get(1));
@@ -2295,7 +2295,7 @@ class SloppyArgumentsElementsAccessor
AliasedArgumentsEntry* alias = AliasedArgumentsEntry::cast(current);
Context* context = Context::cast(parameter_map->get(0));
int context_entry = alias->aliased_context_slot();
- DCHECK(!context->get(context_entry)->IsTheHole());
+ DCHECK(!context->get(context_entry)->IsTheHole(store->GetIsolate()));
context->set(context_entry, value);
} else {
ArgumentsAccessor::SetImpl(arguments, entry - length, value);
@@ -2334,7 +2334,8 @@ class SloppyArgumentsElementsAccessor
FixedArray* parameter_map = FixedArray::cast(parameters);
uint32_t length = parameter_map->length() - 2;
if (entry < length) {
- return !GetParameterMapArg(parameter_map, entry)->IsTheHole();
+ return !GetParameterMapArg(parameter_map, entry)
+ ->IsTheHole(parameter_map->GetIsolate());
}
FixedArrayBase* arguments = FixedArrayBase::cast(parameter_map->get(1));
@@ -2363,7 +2364,7 @@ class SloppyArgumentsElementsAccessor
uint32_t index, PropertyFilter filter) {
FixedArray* parameter_map = FixedArray::cast(parameters);
Object* probe = GetParameterMapArg(parameter_map, index);
- if (!probe->IsTheHole()) return index;
+ if (!probe->IsTheHole(holder->GetIsolate())) return index;
FixedArray* arguments = FixedArray::cast(parameter_map->get(1));
uint32_t entry = ArgumentsAccessor::GetEntryForIndexImpl(holder, arguments,
@@ -2427,7 +2428,7 @@ class SloppyArgumentsElementsAccessor
uint32_t length = parameter_map->length() - 2;
for (uint32_t i = 0; i < length; ++i) {
- if (parameter_map->get(i + 2)->IsTheHole()) continue;
+ if (parameter_map->get(i + 2)->IsTheHole(isolate)) continue;
if (convert == GetKeysConversion::kConvertToString) {
Handle<String> index_string = isolate->factory()->Uint32ToString(i);
list->set(insertion_index, *index_string);
@@ -2496,25 +2497,25 @@ class SlowSloppyArgumentsElementsAccessor
PropertyAttributes attributes) {
Handle<FixedArray> parameter_map = Handle<FixedArray>::cast(store);
uint32_t length = parameter_map->length() - 2;
+ Isolate* isolate = store->GetIsolate();
if (entry < length) {
Object* probe = parameter_map->get(entry + 2);
- DCHECK(!probe->IsTheHole());
+ DCHECK(!probe->IsTheHole(isolate));
Context* context = Context::cast(parameter_map->get(0));
int context_entry = Smi::cast(probe)->value();
- DCHECK(!context->get(context_entry)->IsTheHole());
+ DCHECK(!context->get(context_entry)->IsTheHole(isolate));
context->set(context_entry, *value);
// Redefining attributes of an aliased element destroys fast aliasing.
parameter_map->set_the_hole(entry + 2);
// For elements that are still writable we re-establish slow aliasing.
if ((attributes & READ_ONLY) == 0) {
- Isolate* isolate = store->GetIsolate();
value = isolate->factory()->NewAliasedArgumentsEntry(context_entry);
}
PropertyDetails details(attributes, DATA, 0, PropertyCellType::kNoCell);
Handle<SeededNumberDictionary> arguments(
- SeededNumberDictionary::cast(parameter_map->get(1)));
+ SeededNumberDictionary::cast(parameter_map->get(1)), isolate);
arguments = SeededNumberDictionary::AddNumberEntry(
arguments, entry, value, details, object->map()->is_prototype_map());
// If the attributes were NONE, we would have called set rather than
@@ -2524,7 +2525,7 @@ class SlowSloppyArgumentsElementsAccessor
parameter_map->set(1, *arguments);
} else {
Handle<FixedArrayBase> arguments(
- FixedArrayBase::cast(parameter_map->get(1)));
+ FixedArrayBase::cast(parameter_map->get(1)), isolate);
DictionaryElementsAccessor::ReconfigureImpl(
object, arguments, entry - length, value, attributes);
}
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