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Commit ac6ed35a authored by Caitlin Potter's avatar Caitlin Potter Committed by Commit Bot
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Reland "[async-iteration] implement spec-change to `yield` in async generators" 

Per https://github.com/tc39/proposal-async-iteration/pull/102/files:

AsyncGeneratorResolve no longer unwraps a value component. Instead, the value is
unwrapped before the builtin call via Await, allowing Promise rejections to
affect the generator control flow.

Thus, all `yield <expr>` implicitly become `yield await <expr>`.

Additionally, `return <expr>` becomes `return await <expr>`. Finally, when the
generator is resumed with `.return()`, the parameter passed to .return() is
awaited before generator execution properly continues).

BUG=v8:6187, v8:5855
R=littledan@chromium.org, neis@chromium.org, adamk@chromium.org
TBR=rmcilroy@chromium.org, neis@chromium.org

Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: Id7718028fd555481f9f4ca0dbecfa788e3057c48
Reviewed-on: https://chromium-review.googlesource.com/594500Reviewed-by: 's avatarCaitlin Potter <caitp@igalia.com>
Reviewed-by: 's avatarRoss McIlroy <rmcilroy@chromium.org>
Reviewed-by: 's avatarJakob Gruber <jgruber@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#47058}
parent 638343af
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Showing with 956 additions and 191 deletions
src/ast/ast-numbering.cc
View file @ ac6ed35a
...@@ -95,6 +95,7 @@ class AstNumberingVisitor final : public AstVisitor<AstNumberingVisitor> { ...@@ -95,6 +95,7 @@ class AstNumberingVisitor final : public AstVisitor<AstNumberingVisitor> {
int suspend_count_; int suspend_count_;
AstProperties properties_; AstProperties properties_;
LanguageMode language_mode_; LanguageMode language_mode_;
FunctionKind function_kind_;
// The slot cache allows us to reuse certain feedback slots. // The slot cache allows us to reuse certain feedback slots.
FeedbackSlotCache slot_cache_; FeedbackSlotCache slot_cache_;
BailoutReason disable_fullcodegen_reason_; BailoutReason disable_fullcodegen_reason_;
...@@ -218,7 +219,13 @@ void AstNumberingVisitor::VisitSuspend(Suspend* node) { ...@@ -218,7 +219,13 @@ void AstNumberingVisitor::VisitSuspend(Suspend* node) {
Visit(node->expression()); Visit(node->expression());
} }
void AstNumberingVisitor::VisitYield(Yield* node) { VisitSuspend(node); } void AstNumberingVisitor::VisitYield(Yield* node) {
node->set_suspend_id(suspend_count_++);
if (IsAsyncGeneratorFunction(function_kind_)) {
node->set_await_return_value_suspend_id(suspend_count_++);
}
Visit(node->expression());
}
void AstNumberingVisitor::VisitYieldStar(YieldStar* node) { void AstNumberingVisitor::VisitYieldStar(YieldStar* node) {
VisitSuspend(node); VisitSuspend(node);
...@@ -581,6 +588,7 @@ bool AstNumberingVisitor::Renumber(FunctionLiteral* node) { ...@@ -581,6 +588,7 @@ bool AstNumberingVisitor::Renumber(FunctionLiteral* node) {
DisableFullCodegen(kClassConstructorFunction); DisableFullCodegen(kClassConstructorFunction);
} }
function_kind_ = node->kind();
LanguageModeScope language_mode_scope(this, node->language_mode()); LanguageModeScope language_mode_scope(this, node->language_mode());
if (collect_type_profile_) { if (collect_type_profile_) {
......
src/ast/ast.h
View file @ ac6ed35a
...@@ -2275,10 +2275,24 @@ class Suspend : public Expression { ...@@ -2275,10 +2275,24 @@ class Suspend : public Expression {
}; };
class Yield final : public Suspend { class Yield final : public Suspend {
public:
inline int await_return_value_suspend_id() const {
DCHECK_NE(await_return_value_suspend_id_, -1);
return await_return_value_suspend_id_;
}
void set_await_return_value_suspend_id(int id) {
await_return_value_suspend_id_ = id;
}
private: private:
friend class AstNodeFactory; friend class AstNodeFactory;
Yield(Expression* expression, int pos, OnAbruptResume on_abrupt_resume) Yield(Expression* expression, int pos, OnAbruptResume on_abrupt_resume)
: Suspend(kYield, expression, pos, on_abrupt_resume) {} : Suspend(kYield, expression, pos, on_abrupt_resume),
await_return_value_suspend_id_(-1) {}
// TODO(caitp): remove from class once `await` handled by AsyncGeneratorReturn
// stub.
int await_return_value_suspend_id_;
}; };
class YieldStar final : public Suspend { class YieldStar final : public Suspend {
......
src/bootstrapper.cc
View file @ ac6ed35a
...@@ -1487,6 +1487,18 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object, ...@@ -1487,6 +1487,18 @@ void Genesis::InitializeGlobal(Handle<JSGlobalObject> global_object,
info->set_internal_formal_parameter_count(1); info->set_internal_formal_parameter_count(1);
info->set_length(1); info->set_length(1);
native_context()->set_async_generator_await_reject_shared_fun(*info); native_context()->set_async_generator_await_reject_shared_fun(*info);
code = BUILTIN_CODE(isolate, AsyncGeneratorReturnResolveClosure);
info = factory->NewSharedFunctionInfo(factory->empty_string(), code, false);
info->set_internal_formal_parameter_count(1);
info->set_length(1);
native_context()->set_async_generator_return_resolve_shared_fun(*info);
code = BUILTIN_CODE(isolate, AsyncGeneratorReturnRejectClosure);
info = factory->NewSharedFunctionInfo(factory->empty_string(), code, false);
info->set_internal_formal_parameter_count(1);
info->set_length(1);
native_context()->set_async_generator_return_reject_shared_fun(*info);
} }
{ // --- A r r a y --- { // --- A r r a y ---
......
src/builtins/builtins-async-generator-gen.cc
View file @ ac6ed35a
...@@ -418,8 +418,8 @@ TF_BUILTIN(AsyncGeneratorResumeNext, AsyncGeneratorBuiltinsAssembler) { ...@@ -418,8 +418,8 @@ TF_BUILTIN(AsyncGeneratorResumeNext, AsyncGeneratorBuiltinsAssembler) {
LoadGeneratorState(generator)); LoadGeneratorState(generator));
VARIABLE(var_next, MachineRepresentation::kTagged, VARIABLE(var_next, MachineRepresentation::kTagged,
LoadFirstAsyncGeneratorRequestFromQueue(generator)); LoadFirstAsyncGeneratorRequestFromQueue(generator));
Variable* labels[] = {&var_state, &var_next}; Variable* loop_variables[] = {&var_state, &var_next};
Label start(this, 2, labels); Label start(this, 2, loop_variables);
Goto(&start); Goto(&start);
BIND(&start); BIND(&start);
...@@ -453,10 +453,10 @@ TF_BUILTIN(AsyncGeneratorResumeNext, AsyncGeneratorBuiltinsAssembler) { ...@@ -453,10 +453,10 @@ TF_BUILTIN(AsyncGeneratorResumeNext, AsyncGeneratorBuiltinsAssembler) {
&fulfill_promise, &reject_promise); &fulfill_promise, &reject_promise);
BIND(&fulfill_promise); BIND(&fulfill_promise);
CallBuiltin(Builtins::kAsyncGeneratorResolve, context, generator, // Unwrap Promise values for "return" in state "suspendedStart".
LoadValueFromAsyncGeneratorRequest(next), TrueConstant()); // This simulates `return await request.[[Completion]].[[Value]]`
var_next.Bind(LoadFirstAsyncGeneratorRequestFromQueue(generator)); TailCallBuiltin(Builtins::kAsyncGeneratorReturnProcessor, context,
Goto(&start); generator);
BIND(&reject_promise); BIND(&reject_promise);
CallBuiltin(Builtins::kAsyncGeneratorReject, context, generator, CallBuiltin(Builtins::kAsyncGeneratorReject, context, generator,
...@@ -495,19 +495,35 @@ TF_BUILTIN(AsyncGeneratorResolve, AsyncGeneratorBuiltinsAssembler) { ...@@ -495,19 +495,35 @@ TF_BUILTIN(AsyncGeneratorResolve, AsyncGeneratorBuiltinsAssembler) {
HasInstanceType(generator, JS_ASYNC_GENERATOR_OBJECT_TYPE)); HasInstanceType(generator, JS_ASYNC_GENERATOR_OBJECT_TYPE));
CSA_ASSERT(this, IsGeneratorNotSuspendedForAwait(generator)); CSA_ASSERT(this, IsGeneratorNotSuspendedForAwait(generator));
// If this assertion fails, the `value` component was not Awaited as it should
// have been, per https://github.com/tc39/proposal-async-iteration/pull/102/.
CSA_SLOW_ASSERT(this, TaggedDoesntHaveInstanceType(value, JS_PROMISE_TYPE));
Node* const next = TakeFirstAsyncGeneratorRequestFromQueue(generator); Node* const next = TakeFirstAsyncGeneratorRequestFromQueue(generator);
Node* const promise = LoadPromiseFromAsyncGeneratorRequest(next); Node* const promise = LoadPromiseFromAsyncGeneratorRequest(next);
Node* const wrapper = AllocateAndInitJSPromise(context); // Let iteratorResult be CreateIterResultObject(value, done).
CallBuiltin(Builtins::kResolveNativePromise, context, wrapper, value); Node* const iter_result = Allocate(JSIteratorResult::kSize);
{
Node* map = LoadContextElement(LoadNativeContext(context),
Context::ITERATOR_RESULT_MAP_INDEX);
StoreMapNoWriteBarrier(iter_result, map);
StoreObjectFieldRoot(iter_result, JSIteratorResult::kPropertiesOrHashOffset,
Heap::kEmptyFixedArrayRootIndex);
StoreObjectFieldRoot(iter_result, JSIteratorResult::kElementsOffset,
Heap::kEmptyFixedArrayRootIndex);
StoreObjectFieldNoWriteBarrier(iter_result, JSIteratorResult::kValueOffset,
value);
StoreObjectFieldNoWriteBarrier(iter_result, JSIteratorResult::kDoneOffset,
done);
}
Node* const on_fulfilled = // Perform Call(promiseCapability.[[Resolve]], undefined, «iteratorResult»).
CreateUnwrapClosure(LoadNativeContext(context), done); CallBuiltin(Builtins::kResolveNativePromise, context, promise, iter_result);
// Per spec, AsyncGeneratorResolve() returns undefined. However, for the // Per spec, AsyncGeneratorResolve() returns undefined. However, for the
// benefit of %TraceExit(), return the Promise. // benefit of %TraceExit(), return the Promise.
Return(CallBuiltin(Builtins::kPerformNativePromiseThen, context, wrapper, Return(promise);
on_fulfilled, UndefinedConstant(), promise));
} }
TF_BUILTIN(AsyncGeneratorReject, AsyncGeneratorBuiltinsAssembler) { TF_BUILTIN(AsyncGeneratorReject, AsyncGeneratorBuiltinsAssembler) {
...@@ -523,5 +539,65 @@ TF_BUILTIN(AsyncGeneratorReject, AsyncGeneratorBuiltinsAssembler) { ...@@ -523,5 +539,65 @@ TF_BUILTIN(AsyncGeneratorReject, AsyncGeneratorBuiltinsAssembler) {
TrueConstant())); TrueConstant()));
} }
TF_BUILTIN(AsyncGeneratorReturnProcessor, AsyncGeneratorBuiltinsAssembler) {
Node* const generator = Parameter(Descriptor::kGenerator);
Node* const req = LoadFirstAsyncGeneratorRequestFromQueue(generator);
CSA_SLOW_ASSERT(this, SmiEqual(LoadResumeTypeFromAsyncGeneratorRequest(req),
SmiConstant(JSGeneratorObject::kReturn)));
ContextInitializer init_closure_context = [&](Node* context) {
StoreContextElementNoWriteBarrier(context, AwaitContext::kGeneratorSlot,
generator);
};
const bool kIsPredictedAsCaught = false;
Node* const context = Parameter(Descriptor::kContext);
Node* const outer_promise = LoadPromiseFromAsyncGeneratorRequest(req);
Node* const value = LoadValueFromAsyncGeneratorRequest(req);
Node* const promise = Await(
context, generator, value, outer_promise, AwaitContext::kLength,
init_closure_context, Context::ASYNC_GENERATOR_RETURN_RESOLVE_SHARED_FUN,
Context::ASYNC_GENERATOR_RETURN_REJECT_SHARED_FUN, kIsPredictedAsCaught);
CSA_SLOW_ASSERT(this, IsGeneratorNotSuspendedForAwait(generator));
StoreObjectField(generator, JSAsyncGeneratorObject::kAwaitedPromiseOffset,
promise);
Return(UndefinedConstant());
}
TF_BUILTIN(AsyncGeneratorReturnResolveClosure,
AsyncGeneratorBuiltinsAssembler) {
Node* const context = Parameter(Descriptor::kContext);
Node* const value = Parameter(Descriptor::kValue);
Node* const generator =
LoadContextElement(context, AwaitContext::kGeneratorSlot);
CSA_SLOW_ASSERT(this, IsGeneratorSuspendedForAwait(generator));
ClearAwaitedPromise(generator);
// Return ! AsyncGeneratorResolve(_F_.[[Generator]], _value_, *true*).
CallBuiltin(Builtins::kAsyncGeneratorResolve, context, generator, value,
TrueConstant());
TailCallBuiltin(Builtins::kAsyncGeneratorResumeNext, context, generator);
}
TF_BUILTIN(AsyncGeneratorReturnRejectClosure, AsyncGeneratorBuiltinsAssembler) {
Node* const context = Parameter(Descriptor::kContext);
Node* const value = Parameter(Descriptor::kValue);
Node* const generator =
LoadContextElement(context, AwaitContext::kGeneratorSlot);
CSA_SLOW_ASSERT(this, IsGeneratorSuspendedForAwait(generator));
ClearAwaitedPromise(generator);
// Return ! AsyncGeneratorReject(_F_.[[Generator]], _reason_).
CallBuiltin(Builtins::kAsyncGeneratorReject, context, generator, value);
TailCallBuiltin(Builtins::kAsyncGeneratorResumeNext, context, generator);
}
} // namespace internal } // namespace internal
} // namespace v8 } // namespace v8
src/builtins/builtins-definitions.h
View file @ ac6ed35a
...@@ -1050,6 +1050,7 @@ namespace internal { ...@@ -1050,6 +1050,7 @@ namespace internal {
\ \
TFS(AsyncGeneratorResolve, kGenerator, kValue, kDone) \ TFS(AsyncGeneratorResolve, kGenerator, kValue, kDone) \
TFS(AsyncGeneratorReject, kGenerator, kValue) \ TFS(AsyncGeneratorReject, kGenerator, kValue) \
TFS(AsyncGeneratorReturnProcessor, kGenerator) \
TFS(AsyncGeneratorResumeNext, kGenerator) \ TFS(AsyncGeneratorResumeNext, kGenerator) \
\ \
/* AsyncGeneratorFunction( p1, p2, ... pn, body ) */ \ /* AsyncGeneratorFunction( p1, p2, ... pn, body ) */ \
...@@ -1074,6 +1075,8 @@ namespace internal { ...@@ -1074,6 +1075,8 @@ namespace internal {
TFJ(AsyncGeneratorAwaitUncaught, 1, kAwaited) \ TFJ(AsyncGeneratorAwaitUncaught, 1, kAwaited) \
TFJ(AsyncGeneratorAwaitResolveClosure, 1, kValue) \ TFJ(AsyncGeneratorAwaitResolveClosure, 1, kValue) \
TFJ(AsyncGeneratorAwaitRejectClosure, 1, kValue) \ TFJ(AsyncGeneratorAwaitRejectClosure, 1, kValue) \
TFJ(AsyncGeneratorReturnResolveClosure, 1, kValue) \
TFJ(AsyncGeneratorReturnRejectClosure, 1, kValue) \
\ \
/* Async-from-Sync Iterator */ \ /* Async-from-Sync Iterator */ \
\ \
......
src/code-stub-assembler.cc
View file @ ac6ed35a
...@@ -1128,6 +1128,15 @@ Node* CodeStubAssembler::DoesntHaveInstanceType(Node* object, ...@@ -1128,6 +1128,15 @@ Node* CodeStubAssembler::DoesntHaveInstanceType(Node* object,
return Word32NotEqual(LoadInstanceType(object), Int32Constant(instance_type)); return Word32NotEqual(LoadInstanceType(object), Int32Constant(instance_type));
} }
Node* CodeStubAssembler::TaggedDoesntHaveInstanceType(Node* any_tagged,
InstanceType type) {
/* return Phi <TaggedIsSmi(val), DoesntHaveInstanceType(val, type)> */
Node* tagged_is_smi = TaggedIsSmi(any_tagged);
return Select(tagged_is_smi, [=]() { return tagged_is_smi; },
[=]() { return DoesntHaveInstanceType(any_tagged, type); },
MachineRepresentation::kBit);
}
Node* CodeStubAssembler::LoadProperties(Node* object) { Node* CodeStubAssembler::LoadProperties(Node* object) {
return LoadObjectField(object, JSObject::kPropertiesOrHashOffset); return LoadObjectField(object, JSObject::kPropertiesOrHashOffset);
} }
......
src/code-stub-assembler.h
View file @ ac6ed35a
...@@ -393,6 +393,7 @@ class V8_EXPORT_PRIVATE CodeStubAssembler : public compiler::CodeAssembler { ...@@ -393,6 +393,7 @@ class V8_EXPORT_PRIVATE CodeStubAssembler : public compiler::CodeAssembler {
// Compare the instance the type of the object against the provided one. // Compare the instance the type of the object against the provided one.
Node* HasInstanceType(Node* object, InstanceType type); Node* HasInstanceType(Node* object, InstanceType type);
Node* DoesntHaveInstanceType(Node* object, InstanceType type); Node* DoesntHaveInstanceType(Node* object, InstanceType type);
Node* TaggedDoesntHaveInstanceType(Node* any_tagged, InstanceType type);
// Load the properties backing store of a JSObject. // Load the properties backing store of a JSObject.
Node* LoadProperties(Node* object); Node* LoadProperties(Node* object);
// Load the elements backing store of a JSObject. // Load the elements backing store of a JSObject.
......
src/contexts.h
View file @ ac6ed35a
...@@ -217,6 +217,10 @@ enum ContextLookupFlags { ...@@ -217,6 +217,10 @@ enum ContextLookupFlags {
async_generator_await_reject_shared_fun) \ async_generator_await_reject_shared_fun) \
V(ASYNC_GENERATOR_AWAIT_RESOLVE_SHARED_FUN, SharedFunctionInfo, \ V(ASYNC_GENERATOR_AWAIT_RESOLVE_SHARED_FUN, SharedFunctionInfo, \
async_generator_await_resolve_shared_fun) \ async_generator_await_resolve_shared_fun) \
V(ASYNC_GENERATOR_RETURN_RESOLVE_SHARED_FUN, SharedFunctionInfo, \
async_generator_return_resolve_shared_fun) \
V(ASYNC_GENERATOR_RETURN_REJECT_SHARED_FUN, SharedFunctionInfo, \
async_generator_return_reject_shared_fun) \
V(ATOMICS_OBJECT, JSObject, atomics_object) \ V(ATOMICS_OBJECT, JSObject, atomics_object) \
V(BOOLEAN_FUNCTION_INDEX, JSFunction, boolean_function) \ V(BOOLEAN_FUNCTION_INDEX, JSFunction, boolean_function) \
V(BOUND_FUNCTION_WITH_CONSTRUCTOR_MAP_INDEX, Map, \ V(BOUND_FUNCTION_WITH_CONSTRUCTOR_MAP_INDEX, Map, \
......
src/interpreter/bytecode-generator.cc
View file @ ac6ed35a
...@@ -1579,7 +1579,7 @@ void BytecodeGenerator::VisitTryCatchStatement(TryCatchStatement* stmt) { ...@@ -1579,7 +1579,7 @@ void BytecodeGenerator::VisitTryCatchStatement(TryCatchStatement* stmt) {
void BytecodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) { void BytecodeGenerator::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
// We can't know whether the finally block will override ("catch") an // We can't know whether the finally block will override ("catch") an
// exception thrown in the try bblock, so we just adopt the outer prediction. // exception thrown in the try block, so we just adopt the outer prediction.
TryFinallyBuilder try_control_builder(builder(), catch_prediction()); TryFinallyBuilder try_control_builder(builder(), catch_prediction());
// We keep a record of all paths that enter the finally-block to be able to // We keep a record of all paths that enter the finally-block to be able to
...@@ -2662,6 +2662,7 @@ void BytecodeGenerator::VisitYield(Yield* expr) { ...@@ -2662,6 +2662,7 @@ void BytecodeGenerator::VisitYield(Yield* expr) {
builder()->LoadAccumulatorWithRegister(input); builder()->LoadAccumulatorWithRegister(input);
if (IsAsyncGeneratorFunction(function_kind())) { if (IsAsyncGeneratorFunction(function_kind())) {
// Async generator methods will produce the iter result object. // Async generator methods will produce the iter result object.
BuildAwait(expr->await_return_value_suspend_id());
execution_control()->AsyncReturnAccumulator(); execution_control()->AsyncReturnAccumulator();
} else { } else {
execution_control()->ReturnAccumulator(); execution_control()->ReturnAccumulator();
...@@ -2912,7 +2913,7 @@ void BytecodeGenerator::VisitYieldStar(YieldStar* expr) { ...@@ -2912,7 +2913,7 @@ void BytecodeGenerator::VisitYieldStar(YieldStar* expr) {
builder()->LoadAccumulatorWithRegister(output_value); builder()->LoadAccumulatorWithRegister(output_value);
} }
void BytecodeGenerator::VisitAwait(Await* expr) { void BytecodeGenerator::BuildAwait(int suspend_id) {
// Rather than HandlerTable::UNCAUGHT, async functions use // Rather than HandlerTable::UNCAUGHT, async functions use
// HandlerTable::ASYNC_AWAIT to communicate that top-level exceptions are // HandlerTable::ASYNC_AWAIT to communicate that top-level exceptions are
// transformed into promise rejections. This is necessary to prevent emitting // transformed into promise rejections. This is necessary to prevent emitting
...@@ -2921,8 +2922,6 @@ void BytecodeGenerator::VisitAwait(Await* expr) { ...@@ -2921,8 +2922,6 @@ void BytecodeGenerator::VisitAwait(Await* expr) {
// HandlerTable::UNCAUGHT. // HandlerTable::UNCAUGHT.
DCHECK(catch_prediction() != HandlerTable::UNCAUGHT); DCHECK(catch_prediction() != HandlerTable::UNCAUGHT);
builder()->SetExpressionPosition(expr);
VisitForAccumulatorValue(expr->expression());
{ {
// Await(operand) and suspend. // Await(operand) and suspend.
RegisterAllocationScope register_scope(this); RegisterAllocationScope register_scope(this);
...@@ -2959,7 +2958,7 @@ void BytecodeGenerator::VisitAwait(Await* expr) { ...@@ -2959,7 +2958,7 @@ void BytecodeGenerator::VisitAwait(Await* expr) {
builder()->CallJSRuntime(await_builtin_context_index, args); builder()->CallJSRuntime(await_builtin_context_index, args);
} }
BuildSuspendPoint(expr->suspend_id()); BuildSuspendPoint(suspend_id);
Register input = register_allocator()->NewRegister(); Register input = register_allocator()->NewRegister();
Register resume_mode = register_allocator()->NewRegister(); Register resume_mode = register_allocator()->NewRegister();
...@@ -2977,14 +2976,19 @@ void BytecodeGenerator::VisitAwait(Await* expr) { ...@@ -2977,14 +2976,19 @@ void BytecodeGenerator::VisitAwait(Await* expr) {
// Resume with "throw" completion (rethrow the received value). // Resume with "throw" completion (rethrow the received value).
// TODO(leszeks): Add a debug-only check that the accumulator is // TODO(leszeks): Add a debug-only check that the accumulator is
// JSGeneratorObject::kThrow. // JSGeneratorObject::kThrow.
builder()->SetExpressionPosition(expr);
builder()->LoadAccumulatorWithRegister(input).ReThrow(); builder()->LoadAccumulatorWithRegister(input).ReThrow();
// Resume with next. // Resume with next.
builder()->Bind(&resume_next); builder()->Bind(&resume_next);
builder()->LoadAccumulatorWithRegister(input);
}
void BytecodeGenerator::VisitAwait(Await* expr) {
builder()->SetExpressionPosition(expr);
VisitForAccumulatorValue(expr->expression());
BuildAwait(expr->suspend_id());
BuildIncrementBlockCoverageCounterIfEnabled(expr, BuildIncrementBlockCoverageCounterIfEnabled(expr,
SourceRangeKind::kContinuation); SourceRangeKind::kContinuation);
builder()->LoadAccumulatorWithRegister(input);
} }
void BytecodeGenerator::VisitThrow(Throw* expr) { void BytecodeGenerator::VisitThrow(Throw* expr) {
......
src/interpreter/bytecode-generator.h
View file @ ac6ed35a
...@@ -140,7 +140,8 @@ class BytecodeGenerator final : public AstVisitor<BytecodeGenerator> { ...@@ -140,7 +140,8 @@ class BytecodeGenerator final : public AstVisitor<BytecodeGenerator> {
void BuildGeneratorPrologue(); void BuildGeneratorPrologue();
void BuildSuspendPoint(int suspend_id); void BuildSuspendPoint(int suspend_id);
void BuildAbruptResume(Suspend* expr); void BuildAwait(int suspend_id);
void BuildGetIterator(Expression* iterable, IteratorType hint, void BuildGetIterator(Expression* iterable, IteratorType hint,
FeedbackSlot load_slot, FeedbackSlot call_slot, FeedbackSlot load_slot, FeedbackSlot call_slot,
FeedbackSlot async_load_slot, FeedbackSlot async_load_slot,
......
src/parsing/parser-base.h
View file @ ac6ed35a
...@@ -1341,9 +1341,17 @@ class ParserBase { ...@@ -1341,9 +1341,17 @@ class ParserBase {
// depending on the current function type. // depending on the current function type.
inline StatementT BuildReturnStatement(ExpressionT expr, int pos, inline StatementT BuildReturnStatement(ExpressionT expr, int pos,
int end_pos = kNoSourcePosition) { int end_pos = kNoSourcePosition) {
return is_async_function() if (impl()->IsEmptyExpression(expr)) {
? factory()->NewAsyncReturnStatement(expr, pos, end_pos) expr = impl()->GetLiteralUndefined(kNoSourcePosition);
: factory()->NewReturnStatement(expr, pos, end_pos); } else if (is_async_generator()) {
// In async generators, if there is an explicit operand to the return
// statement, await the operand.
expr = factory()->NewAwait(expr, kNoSourcePosition);
}
if (is_async_function()) {
return factory()->NewAsyncReturnStatement(expr, pos, end_pos);
}
return factory()->NewReturnStatement(expr, pos, end_pos);
} }
// Validation per ES6 object literals. // Validation per ES6 object literals.
...@@ -2943,6 +2951,12 @@ typename ParserBase<Impl>::ExpressionT ParserBase<Impl>::ParseYieldExpression( ...@@ -2943,6 +2951,12 @@ typename ParserBase<Impl>::ExpressionT ParserBase<Impl>::ParseYieldExpression(
return impl()->RewriteYieldStar(expression, pos); return impl()->RewriteYieldStar(expression, pos);
} }
if (is_async_generator()) {
// Per https://github.com/tc39/proposal-async-iteration/pull/102, the yield
// operand must be Await-ed in async generators.
expression = factory()->NewAwait(expression, pos);
}
// Hackily disambiguate o from o.next and o [Symbol.iterator](). // Hackily disambiguate o from o.next and o [Symbol.iterator]().
// TODO(verwaest): Come up with a better solution. // TODO(verwaest): Come up with a better solution.
ExpressionT yield = ExpressionT yield =
...@@ -5221,8 +5235,6 @@ typename ParserBase<Impl>::StatementT ParserBase<Impl>::ParseReturnStatement( ...@@ -5221,8 +5235,6 @@ typename ParserBase<Impl>::StatementT ParserBase<Impl>::ParseReturnStatement(
tok == Token::RBRACE || tok == Token::EOS) { tok == Token::RBRACE || tok == Token::EOS) {
if (IsDerivedConstructor(function_state_->kind())) { if (IsDerivedConstructor(function_state_->kind())) {
return_value = impl()->ThisExpression(loc.beg_pos); return_value = impl()->ThisExpression(loc.beg_pos);
} else {
return_value = impl()->GetLiteralUndefined(position());
} }
} else { } else {
return_value = ParseExpression(true, CHECK_OK); return_value = ParseExpression(true, CHECK_OK);
......
src/parsing/parser.cc
View file @ ac6ed35a
...@@ -4526,11 +4526,14 @@ Expression* Parser::RewriteYieldStar(Expression* iterable, int pos) { ...@@ -4526,11 +4526,14 @@ Expression* Parser::RewriteYieldStar(Expression* iterable, int pos) {
VariableProxy* output_proxy = factory()->NewVariableProxy(var_output); VariableProxy* output_proxy = factory()->NewVariableProxy(var_output);
Expression* literal = factory()->NewStringLiteral( Expression* literal = factory()->NewStringLiteral(
ast_value_factory()->value_string(), nopos); ast_value_factory()->value_string(), nopos);
Assignment* assign = factory()->NewAssignment(
Token::ASSIGN, output_proxy, Expression* value = factory()->NewAwait(
factory()->NewProperty(factory()->NewVariableProxy(var_output), factory()->NewProperty(factory()->NewVariableProxy(var_output),
literal, nopos), literal, nopos),
nopos); nopos);
Assignment* assign =
factory()->NewAssignment(Token::ASSIGN, output_proxy, value, nopos);
loop_body->statements()->Add( loop_body->statements()->Add(
factory()->NewExpressionStatement(assign, nopos), zone()); factory()->NewExpressionStatement(assign, nopos), zone());
} }
......
test/cctest/interpreter/bytecode_expectations/AsyncGenerators.golden
View file @ ac6ed35a
...@@ -14,7 +14,7 @@ snippet: " ...@@ -14,7 +14,7 @@ snippet: "
" "
frame size: 10 frame size: 10
parameter count: 1 parameter count: 1
bytecode array length: 216 bytecode array length: 304
bytecodes: [ bytecodes: [
B(Mov), R(new_target), R(1), B(Mov), R(new_target), R(1),
B(Ldar), R(new_target), B(Ldar), R(new_target),
...@@ -23,7 +23,7 @@ bytecodes: [ ...@@ -23,7 +23,7 @@ bytecodes: [
B(PushContext), R(3), B(PushContext), R(3),
B(RestoreGeneratorState), R(1), B(RestoreGeneratorState), R(1),
B(Star), R(2), B(Star), R(2),
B(SwitchOnSmiNoFeedback), U8(0), U8(1), I8(0), B(SwitchOnSmiNoFeedback), U8(0), U8(3), I8(0),
B(LdaSmi), I8(81), B(LdaSmi), I8(81),
B(Star), R(3), B(Star), R(3),
B(CallRuntime), U16(Runtime::kAbort), R(3), U8(1), B(CallRuntime), U16(Runtime::kAbort), R(3), U8(1),
...@@ -46,22 +46,56 @@ bytecodes: [ ...@@ -46,22 +46,56 @@ bytecodes: [
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(7), B(Star), R(7),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(SwitchOnSmiNoFeedback), U8(1), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(3), U8(2), I8(0),
B(Ldar), R(7), B(Ldar), R(7),
/* 17 E> */ B(Throw), /* 17 E> */ B(Throw),
B(Mov), R(1), R(8),
B(Mov), R(7), R(9),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(8), U8(2),
B(SuspendGenerator), R(1), R(0), U8(8), U8(1),
/* 22 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(8),
B(LdaSmi), I8(-2),
B(Star), R(2),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(8),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(Star), R(9),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(9),
B(JumpIfTrue), U8(5),
B(Ldar), R(8),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(3), B(Star), R(3),
B(Mov), R(7), R(4), B(Mov), R(8), R(4),
B(Jump), U8(61), B(Jump), U8(105),
B(LdaUndefined), B(LdaUndefined),
B(Star), R(4), B(Star), R(8),
B(Mov), R(1), R(7),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(7), U8(2),
B(SuspendGenerator), R(1), R(0), U8(7), U8(2),
/* 22 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(7),
B(LdaSmi), I8(-2),
B(Star), R(2),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(7),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(Star), R(8),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(8),
B(JumpIfTrue), U8(5),
B(Ldar), R(7),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(3), B(Star), R(3),
B(Mov), R(7), R(4),
B(Jump), U8(53), B(Jump), U8(53),
B(Jump), U8(39), B(Jump), U8(39),
B(Star), R(7), B(Star), R(7),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(7), U8(3), U8(4), B(CreateCatchContext), R(7), U8(5), U8(6),
B(Star), R(6), B(Star), R(6),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -89,7 +123,7 @@ bytecodes: [ ...@@ -89,7 +123,7 @@ bytecodes: [
B(Ldar), R(5), B(Ldar), R(5),
B(SetPendingMessage), B(SetPendingMessage),
B(Ldar), R(3), B(Ldar), R(3),
B(SwitchOnSmiNoFeedback), U8(5), U8(3), I8(0), B(SwitchOnSmiNoFeedback), U8(7), U8(3), I8(0),
B(Jump), U8(34), B(Jump), U8(34),
B(LdaTrue), B(LdaTrue),
B(Star), R(8), B(Star), R(8),
...@@ -113,7 +147,9 @@ bytecodes: [ ...@@ -113,7 +147,9 @@ bytecodes: [
] ]
constant pool: [ constant pool: [
Smi [46], Smi [46],
Smi [15], Smi [87],
Smi [139],
Smi [59],
Smi [7], Smi [7],
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"], ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
FIXED_ARRAY_TYPE, FIXED_ARRAY_TYPE,
...@@ -122,8 +158,8 @@ constant pool: [ ...@@ -122,8 +158,8 @@ constant pool: [
Smi [35], Smi [35],
] ]
handlers: [ handlers: [
[52, 143, 149], [52, 231, 237],
[55, 104, 106], [55, 192, 194],
] ]
--- ---
...@@ -133,7 +169,7 @@ snippet: " ...@@ -133,7 +169,7 @@ snippet: "
" "
frame size: 10 frame size: 10
parameter count: 1 parameter count: 1
bytecode array length: 269 bytecode array length: 446
bytecodes: [ bytecodes: [
B(Mov), R(new_target), R(1), B(Mov), R(new_target), R(1),
B(Ldar), R(new_target), B(Ldar), R(new_target),
...@@ -142,7 +178,7 @@ bytecodes: [ ...@@ -142,7 +178,7 @@ bytecodes: [
B(PushContext), R(3), B(PushContext), R(3),
B(RestoreGeneratorState), R(1), B(RestoreGeneratorState), R(1),
B(Star), R(2), B(Star), R(2),
B(SwitchOnSmiNoFeedback), U8(0), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(0), U8(6), I8(0),
B(LdaSmi), I8(81), B(LdaSmi), I8(81),
B(Star), R(3), B(Star), R(3),
B(CallRuntime), U16(Runtime::kAbort), R(3), U8(1), B(CallRuntime), U16(Runtime::kAbort), R(3), U8(1),
...@@ -165,20 +201,55 @@ bytecodes: [ ...@@ -165,20 +201,55 @@ bytecodes: [
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(7), B(Star), R(7),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(6), U8(2), I8(0),
B(Ldar), R(7), B(Ldar), R(7),
/* 17 E> */ B(Throw), /* 17 E> */ B(Throw),
B(Mov), R(1), R(8),
B(Mov), R(7), R(9),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(8), U8(2),
B(SuspendGenerator), R(1), R(0), U8(8), U8(1),
/* 31 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(8),
B(LdaSmi), I8(-2),
B(Star), R(2),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(8),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(Star), R(9),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(9),
B(JumpIfTrue), U8(5),
B(Ldar), R(8),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(3), B(Star), R(3),
B(Mov), R(7), R(4), B(Mov), R(8), R(4),
B(Jump), U8(114), B(Jump), U8(247),
/* 22 S> */ B(LdaSmi), I8(42), /* 22 S> */ B(LdaSmi), I8(42),
B(Star), R(8),
B(Mov), R(1), R(7),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(7), U8(2),
B(SuspendGenerator), R(1), R(0), U8(7), U8(4),
/* 31 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(7),
B(LdaSmi), I8(-2),
B(Star), R(2),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(7),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(Star), R(8),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(8),
B(JumpIfTrue), U8(5),
B(Ldar), R(7),
B(ReThrow),
B(Ldar), R(7),
B(Star), R(8), B(Star), R(8),
B(LdaFalse), B(LdaFalse),
B(Star), R(9), B(Star), R(9),
B(Mov), R(1), R(7), B(Mov), R(1), R(7),
B(InvokeIntrinsic), U8(Runtime::k_AsyncGeneratorResolve), R(7), U8(3), B(InvokeIntrinsic), U8(Runtime::k_AsyncGeneratorResolve), R(7), U8(3),
B(SuspendGenerator), R(1), R(0), U8(7), U8(1), B(SuspendGenerator), R(1), R(0), U8(7), U8(2),
/* 31 S> */ B(Return), /* 31 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(7), B(RestoreGeneratorRegisters), R(1), R(0), U8(7),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -186,22 +257,56 @@ bytecodes: [ ...@@ -186,22 +257,56 @@ bytecodes: [
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(7), B(Star), R(7),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(SwitchOnSmiNoFeedback), U8(4), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(8), U8(2), I8(0),
B(Ldar), R(7), B(Ldar), R(7),
/* 22 E> */ B(Throw), /* 22 E> */ B(Throw),
B(Mov), R(1), R(8),
B(Mov), R(7), R(9),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(8), U8(2),
B(SuspendGenerator), R(1), R(0), U8(8), U8(3),
/* 31 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(8),
B(LdaSmi), I8(-2),
B(Star), R(2),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(8),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(Star), R(9),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(9),
B(JumpIfTrue), U8(5),
B(Ldar), R(8),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(3), B(Star), R(3),
B(Mov), R(7), R(4), B(Mov), R(8), R(4),
B(Jump), U8(61), B(Jump), U8(105),
B(LdaUndefined), B(LdaUndefined),
B(Star), R(4), B(Star), R(8),
B(Mov), R(1), R(7),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(7), U8(2),
B(SuspendGenerator), R(1), R(0), U8(7), U8(5),
/* 31 S> */ B(Return),
B(RestoreGeneratorRegisters), R(1), R(0), U8(7),
B(LdaSmi), I8(-2),
B(Star), R(2),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(1), U8(1),
B(Star), R(7),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(1), U8(1),
B(Star), R(8),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(8),
B(JumpIfTrue), U8(5),
B(Ldar), R(7),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(3), B(Star), R(3),
B(Mov), R(7), R(4),
B(Jump), U8(53), B(Jump), U8(53),
B(Jump), U8(39), B(Jump), U8(39),
B(Star), R(7), B(Star), R(7),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(7), U8(6), U8(7), B(CreateCatchContext), R(7), U8(10), U8(11),
B(Star), R(6), B(Star), R(6),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -229,7 +334,7 @@ bytecodes: [ ...@@ -229,7 +334,7 @@ bytecodes: [
B(Ldar), R(5), B(Ldar), R(5),
B(SetPendingMessage), B(SetPendingMessage),
B(Ldar), R(3), B(Ldar), R(3),
B(SwitchOnSmiNoFeedback), U8(8), U8(3), I8(0), B(SwitchOnSmiNoFeedback), U8(12), U8(3), I8(0),
B(Jump), U8(34), B(Jump), U8(34),
B(LdaTrue), B(LdaTrue),
B(Star), R(8), B(Star), R(8),
...@@ -253,10 +358,14 @@ bytecodes: [ ...@@ -253,10 +358,14 @@ bytecodes: [
] ]
constant pool: [ constant pool: [
Smi [46], Smi [46],
Smi [99], Smi [87],
Smi [15], Smi [188],
Smi [229],
Smi [140],
Smi [281],
Smi [59],
Smi [7], Smi [7],
Smi [15], Smi [59],
Smi [7], Smi [7],
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"], ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
FIXED_ARRAY_TYPE, FIXED_ARRAY_TYPE,
...@@ -265,8 +374,8 @@ constant pool: [ ...@@ -265,8 +374,8 @@ constant pool: [
Smi [35], Smi [35],
] ]
handlers: [ handlers: [
[52, 196, 202], [52, 373, 379],
[55, 157, 159], [55, 334, 336],
] ]
--- ---
...@@ -276,7 +385,7 @@ snippet: " ...@@ -276,7 +385,7 @@ snippet: "
" "
frame size: 23 frame size: 23
parameter count: 1 parameter count: 1
bytecode array length: 565 bytecode array length: 742
bytecodes: [ bytecodes: [
B(Mov), R(new_target), R(10), B(Mov), R(new_target), R(10),
B(Ldar), R(new_target), B(Ldar), R(new_target),
...@@ -285,7 +394,7 @@ bytecodes: [ ...@@ -285,7 +394,7 @@ bytecodes: [
B(PushContext), R(12), B(PushContext), R(12),
B(RestoreGeneratorState), R(10), B(RestoreGeneratorState), R(10),
B(Star), R(11), B(Star), R(11),
B(SwitchOnSmiNoFeedback), U8(0), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(0), U8(6), I8(0),
B(LdaSmi), I8(81), B(LdaSmi), I8(81),
B(Star), R(12), B(Star), R(12),
B(CallRuntime), U16(Runtime::kAbort), R(12), U8(1), B(CallRuntime), U16(Runtime::kAbort), R(12), U8(1),
...@@ -308,36 +417,53 @@ bytecodes: [ ...@@ -308,36 +417,53 @@ bytecodes: [
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
B(Star), R(16), B(Star), R(16),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
B(SwitchOnSmiNoFeedback), U8(2), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(6), U8(2), I8(0),
B(Ldar), R(16), B(Ldar), R(16),
/* 17 E> */ B(Throw), /* 17 E> */ B(Throw),
B(Mov), R(10), R(17),
B(Mov), R(16), R(18),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(17), U8(2),
B(SuspendGenerator), R(10), R(0), U8(17), U8(1),
/* 50 S> */ B(Return),
B(RestoreGeneratorRegisters), R(10), R(0), U8(17),
B(LdaSmi), I8(-2),
B(Star), R(11),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
B(Star), R(17),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
B(Star), R(18),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(18),
B(JumpIfTrue), U8(5),
B(Ldar), R(17),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(12), B(Star), R(12),
B(Mov), R(16), R(13), B(Mov), R(17), R(13),
B(JumpConstant), U8(20), B(JumpConstant), U8(26),
B(LdaTheHole), B(LdaTheHole),
B(Star), R(1), B(Star), R(1),
B(LdaZero), B(LdaZero),
B(Star), R(6), B(Star), R(6),
B(Mov), R(context), R(18), B(Mov), R(context), R(18),
B(Mov), R(context), R(19), B(Mov), R(context), R(19),
/* 36 S> */ B(CreateArrayLiteral), U8(4), U8(0), U8(37), /* 36 S> */ B(CreateArrayLiteral), U8(8), U8(0), U8(37),
B(Star), R(20), B(Star), R(20),
B(LdaNamedProperty), R(20), U8(5), U8(1), B(LdaNamedProperty), R(20), U8(9), U8(1),
B(Star), R(21), B(Star), R(21),
B(CallProperty0), R(21), R(20), U8(3), B(CallProperty0), R(21), R(20), U8(3),
B(JumpIfJSReceiver), U8(7), B(JumpIfJSReceiver), U8(7),
B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0), B(CallRuntime), U16(Runtime::kThrowSymbolIteratorInvalid), R(0), U8(0),
B(Star), R(4), B(Star), R(4),
B(Ldar), R(11), B(Ldar), R(11),
B(SwitchOnSmiNoFeedback), U8(6), U8(1), I8(1), B(SwitchOnSmiNoFeedback), U8(10), U8(3), I8(2),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
/* 36 E> */ B(TestEqualStrictNoFeedback), R(11), /* 36 E> */ B(TestEqualStrictNoFeedback), R(11),
B(JumpIfTrue), U8(11), B(JumpIfTrue), U8(11),
B(LdaSmi), I8(81), B(LdaSmi), I8(81),
B(Star), R(20), B(Star), R(20),
B(CallRuntime), U16(Runtime::kAbort), R(20), U8(1), B(CallRuntime), U16(Runtime::kAbort), R(20), U8(1),
/* 31 S> */ B(LdaNamedProperty), R(4), U8(7), U8(7), /* 31 S> */ B(LdaNamedProperty), R(4), U8(13), U8(7),
B(Star), R(20), B(Star), R(20),
B(CallProperty0), R(20), R(4), U8(5), B(CallProperty0), R(20), R(4), U8(5),
B(Star), R(5), B(Star), R(5),
...@@ -345,21 +471,39 @@ bytecodes: [ ...@@ -345,21 +471,39 @@ bytecodes: [
B(ToBooleanLogicalNot), B(ToBooleanLogicalNot),
B(JumpIfFalse), U8(7), B(JumpIfFalse), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(5), U8(1), B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(5), U8(1),
B(LdaNamedProperty), R(5), U8(8), U8(9), B(LdaNamedProperty), R(5), U8(14), U8(9),
B(JumpIfToBooleanTrue), U8(77), B(JumpIfToBooleanTrue), U8(166),
B(LdaNamedProperty), R(5), U8(9), U8(11), B(LdaNamedProperty), R(5), U8(15), U8(11),
B(Star), R(7), B(Star), R(7),
B(LdaSmi), I8(2), B(LdaSmi), I8(2),
B(Star), R(6), B(Star), R(6),
B(Mov), R(7), R(3), B(Mov), R(7), R(3),
/* 22 E> */ B(StackCheck), /* 22 E> */ B(StackCheck),
B(Mov), R(3), R(0), B(Mov), R(3), R(0),
/* 42 S> */ B(LdaFalse), /* 42 S> */ B(Mov), R(10), R(20),
B(Mov), R(0), R(21),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(20), U8(2),
B(SuspendGenerator), R(10), R(0), U8(20), U8(4),
/* 50 S> */ B(Return),
B(RestoreGeneratorRegisters), R(10), R(0), U8(20),
B(LdaSmi), I8(-2),
B(Star), R(11),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
B(Star), R(20),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
B(Star), R(21),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(21),
B(JumpIfTrue), U8(5),
B(Ldar), R(20),
B(ReThrow),
B(Ldar), R(20),
B(Star), R(21),
B(LdaFalse),
B(Star), R(22), B(Star), R(22),
B(Mov), R(10), R(20), B(Mov), R(10), R(20),
B(Mov), R(0), R(21),
B(InvokeIntrinsic), U8(Runtime::k_AsyncGeneratorResolve), R(20), U8(3), B(InvokeIntrinsic), U8(Runtime::k_AsyncGeneratorResolve), R(20), U8(3),
B(SuspendGenerator), R(10), R(0), U8(20), U8(1), B(SuspendGenerator), R(10), R(0), U8(20), U8(2),
/* 50 S> */ B(Return), /* 50 S> */ B(Return),
B(RestoreGeneratorRegisters), R(10), R(0), U8(20), B(RestoreGeneratorRegisters), R(10), R(0), U8(20),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -367,20 +511,37 @@ bytecodes: [ ...@@ -367,20 +511,37 @@ bytecodes: [
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
B(Star), R(20), B(Star), R(20),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
B(SwitchOnSmiNoFeedback), U8(10), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(16), U8(2), I8(0),
B(Ldar), R(20), B(Ldar), R(20),
/* 42 E> */ B(Throw), /* 42 E> */ B(Throw),
B(Mov), R(10), R(21),
B(Mov), R(20), R(22),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(21), U8(2),
B(SuspendGenerator), R(10), R(0), U8(21), U8(3),
/* 50 S> */ B(Return),
B(RestoreGeneratorRegisters), R(10), R(0), U8(21),
B(LdaSmi), I8(-2),
B(Star), R(11),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
B(Star), R(21),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
B(Star), R(22),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(22),
B(JumpIfTrue), U8(5),
B(Ldar), R(21),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(16), B(Star), R(16),
B(Mov), R(20), R(17), B(Mov), R(21), R(17),
B(Jump), U8(60), B(Jump), U8(60),
B(LdaZero), B(LdaZero),
B(Star), R(6), B(Star), R(6),
B(JumpLoop), U8(123), I8(0), B(JumpLoop), U8(212), I8(0),
B(Jump), U8(40), B(Jump), U8(40),
B(Star), R(20), B(Star), R(20),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(20), U8(12), U8(13), B(CreateCatchContext), R(20), U8(18), U8(19),
B(Star), R(19), B(Star), R(19),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -407,7 +568,7 @@ bytecodes: [ ...@@ -407,7 +568,7 @@ bytecodes: [
B(LdaZero), B(LdaZero),
B(TestEqualStrict), R(6), U8(14), B(TestEqualStrict), R(6), U8(14),
B(JumpIfTrue), U8(104), B(JumpIfTrue), U8(104),
B(LdaNamedProperty), R(4), U8(14), U8(15), B(LdaNamedProperty), R(4), U8(20), U8(15),
B(Star), R(8), B(Star), R(8),
B(TestUndetectable), B(TestUndetectable),
B(JumpIfFalse), U8(4), B(JumpIfFalse), U8(4),
...@@ -421,7 +582,7 @@ bytecodes: [ ...@@ -421,7 +582,7 @@ bytecodes: [
B(Jump), U8(18), B(Jump), U8(18),
B(Wide), B(LdaSmi), I16(134), B(Wide), B(LdaSmi), I16(134),
B(Star), R(19), B(Star), R(19),
B(LdaConstant), U8(15), B(LdaConstant), U8(21),
B(Star), R(20), B(Star), R(20),
B(CallRuntime), U16(Runtime::kNewTypeError), R(19), U8(2), B(CallRuntime), U16(Runtime::kNewTypeError), R(19), U8(2),
B(Throw), B(Throw),
...@@ -432,7 +593,7 @@ bytecodes: [ ...@@ -432,7 +593,7 @@ bytecodes: [
B(Jump), U8(20), B(Jump), U8(20),
B(Star), R(20), B(Star), R(20),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(20), U8(12), U8(16), B(CreateCatchContext), R(20), U8(18), U8(22),
B(Star), R(19), B(Star), R(19),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -451,23 +612,40 @@ bytecodes: [ ...@@ -451,23 +612,40 @@ bytecodes: [
B(Ldar), R(18), B(Ldar), R(18),
B(SetPendingMessage), B(SetPendingMessage),
B(Ldar), R(16), B(Ldar), R(16),
B(SwitchOnSmiNoFeedback), U8(17), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(23), U8(2), I8(0),
B(Jump), U8(13), B(Jump), U8(13),
B(LdaZero), B(LdaZero),
B(Star), R(12), B(Star), R(12),
B(Mov), R(17), R(13), B(Mov), R(17), R(13),
B(Jump), U8(64), B(Jump), U8(108),
B(Ldar), R(17), B(Ldar), R(17),
B(ReThrow), B(ReThrow),
B(LdaUndefined), B(LdaUndefined),
B(Star), R(13), B(Star), R(17),
B(Mov), R(10), R(16),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(10), R(0), U8(16), U8(5),
/* 50 S> */ B(Return),
B(RestoreGeneratorRegisters), R(10), R(0), U8(16),
B(LdaSmi), I8(-2),
B(Star), R(11),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(10), U8(1),
B(Star), R(16),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(10), U8(1),
B(Star), R(17),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(17),
B(JumpIfTrue), U8(5),
B(Ldar), R(16),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(12), B(Star), R(12),
B(Mov), R(16), R(13),
B(Jump), U8(53), B(Jump), U8(53),
B(Jump), U8(39), B(Jump), U8(39),
B(Star), R(16), B(Star), R(16),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(16), U8(12), U8(19), B(CreateCatchContext), R(16), U8(18), U8(25),
B(Star), R(15), B(Star), R(15),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -495,7 +673,7 @@ bytecodes: [ ...@@ -495,7 +673,7 @@ bytecodes: [
B(Ldar), R(14), B(Ldar), R(14),
B(SetPendingMessage), B(SetPendingMessage),
B(Ldar), R(12), B(Ldar), R(12),
B(SwitchOnSmiNoFeedback), U8(21), U8(3), I8(0), B(SwitchOnSmiNoFeedback), U8(27), U8(3), I8(0),
B(Jump), U8(34), B(Jump), U8(34),
B(LdaTrue), B(LdaTrue),
B(Star), R(17), B(Star), R(17),
...@@ -519,16 +697,22 @@ bytecodes: [ ...@@ -519,16 +697,22 @@ bytecodes: [
] ]
constant pool: [ constant pool: [
Smi [46], Smi [46],
Smi [116], Smi [87],
Smi [15], Smi [160],
Smi [160],
Smi [160],
Smi [577],
Smi [59],
Smi [7], Smi [7],
TUPLE2_TYPE, TUPLE2_TYPE,
SYMBOL_TYPE, SYMBOL_TYPE,
Smi [85], Smi [130],
Smi [171],
Smi [82],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
Smi [15], Smi [59],
Smi [7], Smi [7],
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"], ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
FIXED_ARRAY_TYPE, FIXED_ARRAY_TYPE,
...@@ -538,17 +722,17 @@ constant pool: [ ...@@ -538,17 +722,17 @@ constant pool: [
Smi [6], Smi [6],
Smi [14], Smi [14],
FIXED_ARRAY_TYPE, FIXED_ARRAY_TYPE,
Smi [410], Smi [543],
Smi [6], Smi [6],
Smi [28], Smi [28],
Smi [35], Smi [35],
] ]
handlers: [ handlers: [
[52, 492, 498], [52, 669, 675],
[55, 453, 455], [55, 630, 632],
[105, 299, 305], [149, 432, 438],
[108, 259, 261], [152, 392, 394],
[366, 376, 378], [499, 509, 511],
] ]
--- ---
...@@ -559,7 +743,7 @@ snippet: " ...@@ -559,7 +743,7 @@ snippet: "
" "
frame size: 19 frame size: 19
parameter count: 1 parameter count: 1
bytecode array length: 864 bytecode array length: 1084
bytecodes: [ bytecodes: [
B(Mov), R(new_target), R(9), B(Mov), R(new_target), R(9),
B(Ldar), R(new_target), B(Ldar), R(new_target),
...@@ -568,7 +752,7 @@ bytecodes: [ ...@@ -568,7 +752,7 @@ bytecodes: [
B(PushContext), R(11), B(PushContext), R(11),
B(RestoreGeneratorState), R(9), B(RestoreGeneratorState), R(9),
B(Star), R(10), B(Star), R(10),
B(SwitchOnSmiNoFeedback), U8(0), U8(7), I8(0), B(SwitchOnSmiNoFeedback), U8(0), U8(13), I8(0),
B(LdaSmi), I8(81), B(LdaSmi), I8(81),
B(Star), R(11), B(Star), R(11),
B(CallRuntime), U16(Runtime::kAbort), R(11), U8(1), B(CallRuntime), U16(Runtime::kAbort), R(11), U8(1),
...@@ -591,38 +775,55 @@ bytecodes: [ ...@@ -591,38 +775,55 @@ bytecodes: [
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1),
B(Star), R(15), B(Star), R(15),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1),
B(SwitchOnSmiNoFeedback), U8(7), U8(2), I8(0), B(SwitchOnSmiNoFeedback), U8(13), U8(2), I8(0),
B(Ldar), R(15), B(Ldar), R(15),
/* 44 E> */ B(Throw), /* 44 E> */ B(Throw),
B(Mov), R(9), R(16),
B(Mov), R(15), R(17),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(9), R(0), U8(16), U8(1),
/* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(16),
B(LdaSmi), I8(-2),
B(Star), R(10),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1),
B(Star), R(16),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1),
B(Star), R(17),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(17),
B(JumpIfTrue), U8(5),
B(Ldar), R(16),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(11), B(Star), R(11),
B(Mov), R(15), R(12), B(Mov), R(16), R(12),
B(JumpConstant), U8(30), B(JumpConstant), U8(39),
/* 49 S> */ B(LdaUndefined), /* 49 S> */ B(LdaUndefined),
B(Star), R(1), B(Star), R(1),
B(LdaZero), B(LdaZero),
B(Star), R(2), B(Star), R(2),
B(LdaUndefined), B(LdaUndefined),
B(Star), R(3), B(Star), R(3),
B(LdaGlobal), U8(9), U8(2), B(LdaGlobal), U8(15), U8(2),
B(Star), R(17), B(Star), R(17),
/* 56 E> */ B(CallUndefinedReceiver0), R(17), U8(0), /* 56 E> */ B(CallUndefinedReceiver0), R(17), U8(0),
B(Star), R(15), B(Star), R(15),
B(LdaNamedProperty), R(15), U8(10), U8(8), B(LdaNamedProperty), R(15), U8(16), U8(8),
B(JumpIfUndefined), U8(17), B(JumpIfUndefined), U8(17),
B(JumpIfNull), U8(15), B(JumpIfNull), U8(15),
B(Star), R(16), B(Star), R(16),
B(CallProperty0), R(16), R(15), U8(10), B(CallProperty0), R(16), R(15), U8(10),
B(JumpIfJSReceiver), U8(23), B(JumpIfJSReceiver), U8(23),
B(CallRuntime), U16(Runtime::kThrowSymbolAsyncIteratorInvalid), R(0), U8(0), B(CallRuntime), U16(Runtime::kThrowSymbolAsyncIteratorInvalid), R(0), U8(0),
B(LdaNamedProperty), R(15), U8(11), U8(4), B(LdaNamedProperty), R(15), U8(17), U8(4),
B(Star), R(16), B(Star), R(16),
B(CallProperty0), R(16), R(15), U8(6), B(CallProperty0), R(16), R(15), U8(6),
B(Star), R(16), B(Star), R(16),
B(InvokeIntrinsic), U8(Runtime::k_CreateAsyncFromSyncIterator), R(16), U8(1), B(InvokeIntrinsic), U8(Runtime::k_CreateAsyncFromSyncIterator), R(16), U8(1),
B(Star), R(4), B(Star), R(4),
B(Ldar), R(10), B(Ldar), R(10),
B(SwitchOnSmiNoFeedback), U8(12), U8(6), I8(1), B(SwitchOnSmiNoFeedback), U8(18), U8(9), I8(2),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
B(TestEqualStrictNoFeedback), R(10), B(TestEqualStrictNoFeedback), R(10),
B(JumpIfTrue), U8(11), B(JumpIfTrue), U8(11),
...@@ -639,15 +840,15 @@ bytecodes: [ ...@@ -639,15 +840,15 @@ bytecodes: [
B(JumpIfTrue), U8(83), B(JumpIfTrue), U8(83),
B(LdaSmi), I8(2), B(LdaSmi), I8(2),
B(TestEqualStrict), R(15), U8(29), B(TestEqualStrict), R(15), U8(29),
B(JumpIfTrue), U8(167), B(JumpIfTrue), U8(211),
B(JumpConstant), U8(24), B(JumpConstant), U8(33),
B(LdaNamedProperty), R(4), U8(18), U8(14), B(LdaNamedProperty), R(4), U8(27), U8(14),
B(Star), R(16), B(Star), R(16),
B(CallProperty1), R(16), R(4), R(1), U8(12), B(CallProperty1), R(16), R(4), R(1), U8(12),
B(Star), R(17), B(Star), R(17),
B(Mov), R(9), R(16), B(Mov), R(9), R(16),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2), B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(9), R(0), U8(16), U8(1), B(SuspendGenerator), R(9), R(0), U8(16), U8(2),
/* 60 S> */ B(Return), /* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(16), B(RestoreGeneratorRegisters), R(9), R(0), U8(16),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -666,15 +867,32 @@ bytecodes: [ ...@@ -666,15 +867,32 @@ bytecodes: [
B(JumpIfToBooleanFalse), U8(4), B(JumpIfToBooleanFalse), U8(4),
B(Jump), U8(7), B(Jump), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1), B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1),
B(JumpConstant), U8(25), B(JumpConstant), U8(34),
B(LdaNamedProperty), R(4), U8(19), U8(17), B(LdaNamedProperty), R(4), U8(28), U8(17),
B(Star), R(3), B(Star), R(3),
B(TestUndetectable), B(TestUndetectable),
B(JumpIfFalse), U8(10), B(JumpIfFalse), U8(54),
B(Mov), R(9), R(16),
B(Mov), R(1), R(17),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(9), R(0), U8(16), U8(3),
/* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(16),
B(LdaSmi), I8(-2),
B(Star), R(10),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1),
B(Star), R(16),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1),
B(Star), R(17),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(17),
B(JumpIfTrue), U8(5),
B(Ldar), R(16),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(11), B(Star), R(11),
B(Mov), R(1), R(12), B(Mov), R(16), R(12),
B(JumpConstant), U8(31), B(JumpConstant), U8(40),
B(Mov), R(3), R(16), B(Mov), R(3), R(16),
B(Mov), R(4), R(17), B(Mov), R(4), R(17),
B(Mov), R(1), R(18), B(Mov), R(1), R(18),
...@@ -682,7 +900,7 @@ bytecodes: [ ...@@ -682,7 +900,7 @@ bytecodes: [
B(Star), R(17), B(Star), R(17),
B(Mov), R(9), R(16), B(Mov), R(9), R(16),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2), B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(9), R(0), U8(16), U8(2), B(SuspendGenerator), R(9), R(0), U8(16), U8(4),
/* 60 S> */ B(Return), /* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(16), B(RestoreGeneratorRegisters), R(9), R(0), U8(16),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -701,12 +919,12 @@ bytecodes: [ ...@@ -701,12 +919,12 @@ bytecodes: [
B(JumpIfToBooleanFalse), U8(4), B(JumpIfToBooleanFalse), U8(4),
B(Jump), U8(7), B(Jump), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1), B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1),
B(JumpConstant), U8(26), B(JumpConstant), U8(35),
B(LdaNamedProperty), R(4), U8(20), U8(21), B(LdaNamedProperty), R(4), U8(29), U8(21),
B(Star), R(5), B(Star), R(5),
B(TestUndetectable), B(TestUndetectable),
B(JumpIfFalse), U8(212), B(JumpIfFalse), U8(212),
B(LdaNamedProperty), R(4), U8(19), U8(24), B(LdaNamedProperty), R(4), U8(28), U8(24),
B(Star), R(6), B(Star), R(6),
B(TestUndetectable), B(TestUndetectable),
B(JumpIfFalse), U8(4), B(JumpIfFalse), U8(4),
...@@ -722,7 +940,7 @@ bytecodes: [ ...@@ -722,7 +940,7 @@ bytecodes: [
B(Jump), U8(18), B(Jump), U8(18),
B(Wide), B(LdaSmi), I16(134), B(Wide), B(LdaSmi), I16(134),
B(Star), R(16), B(Star), R(16),
B(LdaConstant), U8(21), B(LdaConstant), U8(30),
B(Star), R(17), B(Star), R(17),
B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2), B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
B(Throw), B(Throw),
...@@ -733,7 +951,7 @@ bytecodes: [ ...@@ -733,7 +951,7 @@ bytecodes: [
B(Star), R(18), B(Star), R(18),
B(Mov), R(9), R(17), B(Mov), R(9), R(17),
B(CallJSRuntime), U8(%async_generator_await_caught), R(17), U8(2), B(CallJSRuntime), U8(%async_generator_await_caught), R(17), U8(2),
B(SuspendGenerator), R(9), R(0), U8(17), U8(3), B(SuspendGenerator), R(9), R(0), U8(17), U8(5),
/* 60 S> */ B(Return), /* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(17), B(RestoreGeneratorRegisters), R(9), R(0), U8(17),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -751,7 +969,7 @@ bytecodes: [ ...@@ -751,7 +969,7 @@ bytecodes: [
B(Jump), U8(20), B(Jump), U8(20),
B(Star), R(17), B(Star), R(17),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(17), U8(22), U8(23), B(CreateCatchContext), R(17), U8(31), U8(32),
B(Star), R(16), B(Star), R(16),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -765,7 +983,7 @@ bytecodes: [ ...@@ -765,7 +983,7 @@ bytecodes: [
B(Star), R(17), B(Star), R(17),
B(Mov), R(9), R(16), B(Mov), R(9), R(16),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2), B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(9), R(0), U8(16), U8(4), B(SuspendGenerator), R(9), R(0), U8(16), U8(6),
/* 60 S> */ B(Return), /* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(16), B(RestoreGeneratorRegisters), R(9), R(0), U8(16),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -786,7 +1004,7 @@ bytecodes: [ ...@@ -786,7 +1004,7 @@ bytecodes: [
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(7), U8(1), B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(7), U8(1),
B(Wide), B(LdaSmi), I16(148), B(Wide), B(LdaSmi), I16(148),
B(Star), R(16), B(Star), R(16),
B(LdaConstant), U8(21), B(LdaConstant), U8(30),
B(Star), R(17), B(Star), R(17),
B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2), B(CallRuntime), U16(Runtime::kNewTypeError), R(16), U8(2),
B(Throw), B(Throw),
...@@ -797,7 +1015,7 @@ bytecodes: [ ...@@ -797,7 +1015,7 @@ bytecodes: [
B(Star), R(17), B(Star), R(17),
B(Mov), R(9), R(16), B(Mov), R(9), R(16),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2), B(CallJSRuntime), U8(%async_generator_await_uncaught), R(16), U8(2),
B(SuspendGenerator), R(9), R(0), U8(16), U8(5), B(SuspendGenerator), R(9), R(0), U8(16), U8(7),
/* 60 S> */ B(Return), /* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(16), B(RestoreGeneratorRegisters), R(9), R(0), U8(16),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -817,17 +1035,34 @@ bytecodes: [ ...@@ -817,17 +1035,34 @@ bytecodes: [
B(Jump), U8(7), B(Jump), U8(7),
B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1), B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), R(3), U8(1),
B(Jump), U8(2), B(Jump), U8(2),
B(LdaNamedProperty), R(3), U8(27), U8(30), B(LdaNamedProperty), R(3), U8(36), U8(30),
B(JumpIfToBooleanFalse), U8(4), B(JumpIfToBooleanFalse), U8(4),
B(Jump), U8(57), B(Jump), U8(101),
B(LdaNamedProperty), R(3), U8(28), U8(32), B(LdaNamedProperty), R(3), U8(37), U8(32),
B(Star), R(3), B(Star), R(16),
B(Mov), R(9), R(15),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(15), U8(2),
B(SuspendGenerator), R(9), R(0), U8(15), U8(8),
/* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(15),
B(LdaSmi), I8(-2),
B(Star), R(10),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1),
B(Star), R(15),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1),
B(Star), R(16),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(16),
B(JumpIfTrue), U8(5),
B(Ldar), R(15),
B(ReThrow),
B(Mov), R(15), R(3),
B(LdaFalse), B(LdaFalse),
B(Star), R(17), B(Star), R(17),
B(Mov), R(9), R(15), B(Mov), R(9), R(15),
B(Mov), R(3), R(16), B(Mov), R(3), R(16),
B(InvokeIntrinsic), U8(Runtime::k_AsyncGeneratorResolve), R(15), U8(3), B(InvokeIntrinsic), U8(Runtime::k_AsyncGeneratorResolve), R(15), U8(3),
B(SuspendGenerator), R(9), R(0), U8(15), U8(6), B(SuspendGenerator), R(9), R(0), U8(15), U8(9),
/* 60 S> */ B(Return), /* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(15), B(RestoreGeneratorRegisters), R(9), R(0), U8(15),
B(LdaSmi), I8(-2), B(LdaSmi), I8(-2),
...@@ -837,26 +1072,60 @@ bytecodes: [ ...@@ -837,26 +1072,60 @@ bytecodes: [
B(Star), R(1), B(Star), R(1),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1), B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(0), U8(1),
B(Star), R(2), B(Star), R(2),
B(Wide), B(JumpLoop), U16(561), I16(0), B(Wide), B(JumpLoop), U16(649), I16(0),
B(LdaSmi), I8(1), B(LdaSmi), I8(1),
B(TestEqualStrict), R(2), U8(34), B(TestEqualStrict), R(2), U8(34),
B(JumpIfFalse), U8(13), B(JumpIfFalse), U8(57),
B(LdaNamedProperty), R(3), U8(28), U8(35), B(LdaNamedProperty), R(3), U8(37), U8(35),
B(Star), R(12), B(Star), R(16),
B(Mov), R(9), R(15),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(15), U8(2),
B(SuspendGenerator), R(9), R(0), U8(15), U8(11),
/* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(15),
B(LdaSmi), I8(-2),
B(Star), R(10),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1),
B(Star), R(15),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1),
B(Star), R(16),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(16),
B(JumpIfTrue), U8(5),
B(Ldar), R(15),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(11), B(Star), R(11),
B(Jump), U8(67), B(Mov), R(15), R(12),
B(LdaNamedProperty), R(3), U8(28), U8(37), B(Jump), U8(111),
B(LdaNamedProperty), R(3), U8(37), U8(37),
B(Star), R(8), B(Star), R(8),
B(LdaUndefined), B(LdaUndefined),
B(Star), R(12), B(Star), R(16),
B(Mov), R(9), R(15),
B(CallJSRuntime), U8(%async_generator_await_uncaught), R(15), U8(2),
B(SuspendGenerator), R(9), R(0), U8(15), U8(12),
/* 60 S> */ B(Return),
B(RestoreGeneratorRegisters), R(9), R(0), U8(15),
B(LdaSmi), I8(-2),
B(Star), R(10),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetInputOrDebugPos), R(9), U8(1),
B(Star), R(15),
B(InvokeIntrinsic), U8(Runtime::k_GeneratorGetResumeMode), R(9), U8(1),
B(Star), R(16),
B(LdaZero),
B(TestEqualStrictNoFeedback), R(16),
B(JumpIfTrue), U8(5),
B(Ldar), R(15),
B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(11), B(Star), R(11),
B(Mov), R(15), R(12),
B(Jump), U8(53), B(Jump), U8(53),
B(Jump), U8(39), B(Jump), U8(39),
B(Star), R(15), B(Star), R(15),
B(Ldar), R(closure), B(Ldar), R(closure),
B(CreateCatchContext), R(15), U8(22), U8(29), B(CreateCatchContext), R(15), U8(31), U8(38),
B(Star), R(14), B(Star), R(14),
B(LdaTheHole), B(LdaTheHole),
B(SetPendingMessage), B(SetPendingMessage),
...@@ -884,7 +1153,7 @@ bytecodes: [ ...@@ -884,7 +1153,7 @@ bytecodes: [
B(Ldar), R(13), B(Ldar), R(13),
B(SetPendingMessage), B(SetPendingMessage),
B(Ldar), R(11), B(Ldar), R(11),
B(SwitchOnSmiNoFeedback), U8(32), U8(3), I8(0), B(SwitchOnSmiNoFeedback), U8(41), U8(3), I8(0),
B(Jump), U8(34), B(Jump), U8(34),
B(LdaTrue), B(LdaTrue),
B(Star), R(16), B(Star), R(16),
...@@ -908,44 +1177,53 @@ bytecodes: [ ...@@ -908,44 +1177,53 @@ bytecodes: [
] ]
constant pool: [ constant pool: [
Smi [46], Smi [46],
Smi [137], Smi [87],
Smi [137], Smi [181],
Smi [137], Smi [181],
Smi [137], Smi [181],
Smi [137], Smi [181],
Smi [137], Smi [181],
Smi [15], Smi [181],
Smi [181],
Smi [181],
Smi [181],
Smi [861],
Smi [919],
Smi [59],
Smi [7], Smi [7],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["g"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["g"],
SYMBOL_TYPE, SYMBOL_TYPE,
SYMBOL_TYPE, SYMBOL_TYPE,
Smi [71], Smi [71],
Smi [162], Smi [142],
Smi [290], Smi [206],
Smi [367], Smi [334],
Smi [455], Smi [411],
Smi [534], Smi [499],
Smi [572],
Smi [622],
ODDBALL_TYPE,
ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["next"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["return"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["throw"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["throw"],
ONE_BYTE_INTERNALIZED_STRING_TYPE [""], ONE_BYTE_INTERNALIZED_STRING_TYPE [""],
ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"], ONE_BYTE_INTERNALIZED_STRING_TYPE [".catch"],
FIXED_ARRAY_TYPE, FIXED_ARRAY_TYPE,
Smi [458], Smi [502],
Smi [386], Smi [430],
Smi [295], Smi [295],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["done"],
ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"], ONE_BYTE_INTERNALIZED_STRING_TYPE ["value"],
FIXED_ARRAY_TYPE, FIXED_ARRAY_TYPE,
Smi [709], Smi [885],
Smi [515], Smi [647],
Smi [6], Smi [6],
Smi [28], Smi [28],
Smi [35], Smi [35],
] ]
handlers: [ handlers: [
[52, 791, 797], [52, 1011, 1017],
[55, 752, 754], [55, 972, 974],
[421, 476, 478], [509, 564, 566],
] ]
test/cctest/interpreter/bytecode_expectations/ForAwaitOf.golden
View file @ ac6ed35a
...@@ -92,7 +92,7 @@ bytecodes: [ ...@@ -92,7 +92,7 @@ bytecodes: [
B(TestEqualStrictNoFeedback), R(22), B(TestEqualStrictNoFeedback), R(22),
B(JumpIfTrue), U8(5), B(JumpIfTrue), U8(5),
B(Ldar), R(21), B(Ldar), R(21),
/* 40 E> */ B(ReThrow), B(ReThrow),
B(Mov), R(21), R(5), B(Mov), R(21), R(5),
/* 40 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(21), U8(1), /* 40 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(21), U8(1),
B(ToBooleanLogicalNot), B(ToBooleanLogicalNot),
...@@ -395,7 +395,7 @@ bytecodes: [ ...@@ -395,7 +395,7 @@ bytecodes: [
B(TestEqualStrictNoFeedback), R(22), B(TestEqualStrictNoFeedback), R(22),
B(JumpIfTrue), U8(5), B(JumpIfTrue), U8(5),
B(Ldar), R(21), B(Ldar), R(21),
/* 40 E> */ B(ReThrow), B(ReThrow),
B(Mov), R(21), R(5), B(Mov), R(21), R(5),
/* 40 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(21), U8(1), /* 40 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(21), U8(1),
B(ToBooleanLogicalNot), B(ToBooleanLogicalNot),
...@@ -716,7 +716,7 @@ bytecodes: [ ...@@ -716,7 +716,7 @@ bytecodes: [
B(TestEqualStrictNoFeedback), R(22), B(TestEqualStrictNoFeedback), R(22),
B(JumpIfTrue), U8(5), B(JumpIfTrue), U8(5),
B(Ldar), R(21), B(Ldar), R(21),
/* 40 E> */ B(ReThrow), B(ReThrow),
B(Mov), R(21), R(5), B(Mov), R(21), R(5),
/* 40 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(21), U8(1), /* 40 E> */ B(InvokeIntrinsic), U8(Runtime::k_IsJSReceiver), R(21), U8(1),
B(ToBooleanLogicalNot), B(ToBooleanLogicalNot),
......
test/cctest/interpreter/bytecode_expectations/ForOfLoop.golden
View file @ ac6ed35a
...@@ -1346,7 +1346,7 @@ bytecodes: [ ...@@ -1346,7 +1346,7 @@ bytecodes: [
B(TestEqualStrictNoFeedback), R(23), B(TestEqualStrictNoFeedback), R(23),
B(JumpIfTrue), U8(5), B(JumpIfTrue), U8(5),
B(Ldar), R(22), B(Ldar), R(22),
/* 45 E> */ B(ReThrow), B(ReThrow),
B(LdaZero), B(LdaZero),
B(Star), R(6), B(Star), R(6),
B(JumpLoop), U8(118), I8(0), B(JumpLoop), U8(118), I8(0),
......
test/cctest/interpreter/bytecode_expectations/StandardForLoop.golden
View file @ ac6ed35a
...@@ -585,7 +585,7 @@ bytecodes: [ ...@@ -585,7 +585,7 @@ bytecodes: [
B(TestEqualStrictNoFeedback), R(10), B(TestEqualStrictNoFeedback), R(10),
B(JumpIfTrue), U8(5), B(JumpIfTrue), U8(5),
B(Ldar), R(9), B(Ldar), R(9),
/* 52 E> */ B(ReThrow), B(ReThrow),
/* 49 S> */ B(Ldar), R(0), /* 49 S> */ B(Ldar), R(0),
B(Inc), U8(1), B(Inc), U8(1),
B(Star), R(0), B(Star), R(0),
......
test/mjsunit/harmony/async-generators-resume-return.js 0 → 100644
View file @ ac6ed35a
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-async-iteration --allow-natives-syntax
// .return() from state suspendedStart with undefined
testAsync(test => {
test.plan(3);
async function* gen() {
test.unreachable();
}
let didResolvePromise = false;
let g = gen();
g.return(undefined).then(
(iterResult) => {
test.equals(true, didResolvePromise);
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
g.next().then(
(iterResult) => {
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
// Race: generator request's promise should resolve after this Promise.
Promise.resolve("already-resolved").then(
_ => { didResolvePromise = true },
test.unexpectedRejection());
}, "AsyncGenerator.return(undefined) / suspendStart");
// .return() from state suspendedStart with thenable
testAsync(test => {
test.plan(3);
async function* gen() {
test.unreachable();
}
let didResolvePromise = false;
let g = gen();
let resolve;
let awaitedThenable = { then(resolveFn) { resolve = resolveFn; } };
g.return(awaitedThenable).then(
(iterResult) => {
test.equals(true, didResolvePromise);
test.equals({ value: "resolvedPromise", done: true }, iterResult);
},
test.unexpectedRejection());
g.next().then(
(iterResult) => {
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
test.drainMicrotasks();
resolve("resolvedPromise");
// Race: generator request's promise should resolve after this Promise.
Promise.resolve("already-resolved").then(
_ => { didResolvePromise = true },
test.unexpectedRejection());
}, "AsyncGenerator.return(thenable) / suspendStart");
// .return() from state suspendedYield with undefined
testAsync(test => {
test.plan(4);
async function* gen() {
yield;
test.unreachable();
}
let didResolvePromise = false;
let g = gen();
g.next().then(
(iterResult) => {
test.equals({ value: undefined, done: false }, iterResult);
},
test.unexpectedRejection());
g.return(undefined).then(
(iterResult) => {
test.equals(true, didResolvePromise);
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
g.next().then(
(iterResult) => {
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
// Race: generator request's promise should resolve after this Promise.
Promise.resolve("already-resolved").then(
_ => { didResolvePromise = true },
test.unexpectedRejection());
}, "AsyncGenerator.return(undefined) / suspendedYield");
// .return() from state suspendedYield with thenable
testAsync(test => {
test.plan(4);
async function* gen() {
yield;
test.unreachable();
}
let didResolvePromise = false;
let g = gen();
let resolve;
let awaitedThenable = { then(resolveFn) { resolve = resolveFn; } };
g.next().then(
(iterResult) => {
test.equals({ value: undefined, done: false }, iterResult);
},
test.unexpectedRejection());
g.return(awaitedThenable).then(
(iterResult) => {
test.equals(true, didResolvePromise);
test.equals({ value: "resolvedPromise", done: true }, iterResult);
},
test.unexpectedRejection());
g.next().then(
(iterResult) => {
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
test.drainMicrotasks();
resolve("resolvedPromise");
// Race: generator request's promise should resolve after this Promise.
Promise.resolve("already-resolved").then(
_ => { didResolvePromise = true },
test.unexpectedRejection());
}, "AsyncGenerator.return(thenable) / suspendYield");
test/mjsunit/harmony/async-generators-return.js 0 → 100644
View file @ ac6ed35a
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-async-iteration --allow-natives-syntax
testAsync(test => {
test.plan(2);
async function* gen() {
return;
test.unreachable();
}
let didResolvePromise = false;
gen().next().then(
(iterResult) => {
test.equals(false, didResolvePromise);
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
// Race: generator request's promise should resolve before this Promise.
Promise.resolve("already-resolved").then(
_ => { didResolvePromise = true },
test.unexpectedRejection());
}, "return-race-no-operand");
testAsync(test => {
test.plan(2);
async function* gen() {
return undefined;
test.unreachable();
}
let didResolvePromise = false;
gen().next().then(
(iterResult) => {
test.equals(true, didResolvePromise);
test.equals({ value: undefined, done: true }, iterResult);
},
test.unexpectedRejection());
// Race: generator request's promise should resolve after this Promise.
Promise.resolve("already-resolved").then(
_ => { didResolvePromise = true },
test.unexpectedRejection());
}, "return-race-with-operand");
// Return a thenable which is never settled
testAsync(test => {
test.plan(0);
let promise = { then() { } };
async function* gen() {
return promise;
test.unreachable();
}
gen().next().then(
(iterResult) => test.unreachable(),
test.unexpectedRejection());
}, "return-await-thenable-pending");
// Return a thenable which is fulfilled later
testAsync(test => {
test.plan(2);
let resolve;
let awaitedThenable = { then(resolveFn) { resolve = resolveFn; } };
let finallyEvaluated = false;
async function* gen() {
try {
return awaitedThenable;
} finally {
finallyEvaluated = true;
}
}
gen().next().then(
(iterResult) => {
test.equals({ value: "resolvedPromise", done: true }, iterResult);
test.equals(true, finallyEvaluated);
},
test.unexpectedRejection());
test.drainMicrotasks();
resolve("resolvedPromise");
}, "yield-await-thenable-resolved");
// Return a thenable which is rejected later
testAsync(test => {
test.plan(2);
let reject;
let awaitedThenable = { then(resolveFn, rejectFn) { reject = rejectFn; } };
async function* gen() {
try {
yield awaitedThenable;
} catch (e) {
test.equals("rejection", e);
return e;
}
}
gen().next().then(
(iterResult) => {
test.equals({ value: "rejection", done: true }, iterResult);
},
test.unexpectedRejection());
test.drainMicrotasks();
reject("rejection");
}, "yield-await-thenable-rejected");
test/mjsunit/harmony/async-generators-yield.js 0 → 100644
View file @ ac6ed35a
// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-async-iteration --allow-natives-syntax
// Yield a thenable which is never settled
testAsync(test => {
test.plan(0);
let awaitedThenable = { then() { } };
async function* gen() {
yield awaitedThenable;
test.unreachable();
}
gen().next().then(
(iterResult) => test.unreachable(),
test.unexpectedRejection());
}, "yield-await-thenable-pending");
// Yield a thenable which is fulfilled later
testAsync(test => {
test.plan(1);
let resolve;
let awaitedThenable = { then(resolveFn) { resolve = resolveFn; } };
async function* gen() {
let input = yield awaitedThenable;
test.equals("resolvedPromise", input);
}
gen().next().then(
(iterResult) => {
test.equals({ value: "resolvedPromise", done: false }, iterResult);
},
test.unexpectedRejection());
test.drainMicrotasks();
resolve("resolvedPromise");
}, "yield-await-thenable-resolved");
// Yield a thenable which is rejected later
testAsync(test => {
test.plan(2);
let reject;
let awaitedThenable = { then(resolveFn, rejectFn) { reject = rejectFn; } };
async function* gen() {
try {
yield awaitedThenable;
} catch (e) {
test.equals("rejection", e);
return e;
}
}
gen().next().then(
(iterResult) => {
test.equals({ value: "rejection", done: true }, iterResult);
},
test.unexpectedRejection());
test.drainMicrotasks();
reject("rejection");
}, "yield-await-thenable-rejected");
test/mjsunit/mjsunit.js
View file @ ac6ed35a
...@@ -754,7 +754,7 @@ var failWithMessage; ...@@ -754,7 +754,7 @@ var failWithMessage;
} }
fail(expectedText, found) { fail(expectedText, found) {
message = formatFailureText(expectedText, found); let message = formatFailureText(expectedText, found);
message += "\nin test:" + this.name_ message += "\nin test:" + this.name_
message += "\n" + Function.prototype.toString.apply(this.test_); message += "\n" + Function.prototype.toString.apply(this.test_);
eval("%AbortJS(message)"); eval("%AbortJS(message)");
...@@ -773,6 +773,25 @@ var failWithMessage; ...@@ -773,6 +773,25 @@ var failWithMessage;
eval("%AbortJS(message)"); eval("%AbortJS(message)");
} }
unexpectedRejection(details) {
return (error) => {
let message =
"Failure: unexpected Promise rejection in test: " + this.name_;
if (details) message += "\n @" + details;
if (error instanceof Error) {
message += "\n" + String(error.stack);
} else {
message += "\n" + String(error);
}
message += "\n\n" + Function.prototype.toString.apply(this.test_);
eval("%AbortJS(message)");
};
}
drainMicrotasks() {
eval("%RunMicrotasks()");
}
done_() { done_() {
if (this.expectedAsserts_ === -1) { if (this.expectedAsserts_ === -1) {
let message = "Please call t.plan(count) to initialize test harness " + let message = "Please call t.plan(count) to initialize test harness " +
......
test/test262/test262.status
View file @ ac6ed35a
...@@ -504,36 +504,6 @@ ...@@ -504,36 +504,6 @@
'built-ins/Array/prototype/splice/create-species-length-exceeding-integer-limit': [FAIL], 'built-ins/Array/prototype/splice/create-species-length-exceeding-integer-limit': [FAIL],
'built-ins/Array/prototype/splice/throws-if-integer-limit-exceeded': [SKIP], 'built-ins/Array/prototype/splice/throws-if-integer-limit-exceeded': [SKIP],
# https://bugs.chromium.org/p/v8/issues/detail?id=5855
'language/expressions/async-generator/named-yield-promise-reject-next': [FAIL],
'language/expressions/async-generator/named-yield-promise-reject-next-catch': [FAIL],
'language/expressions/async-generator/yield-promise-reject-next': [FAIL],
'language/expressions/async-generator/yield-promise-reject-next-catch': [FAIL],
'language/expressions/class/async-gen-method-static-yield-promise-reject-next': [FAIL],
'language/expressions/class/async-gen-method-static-yield-promise-reject-next-catch': [FAIL],
'language/expressions/class/async-gen-method-yield-promise-reject-next': [FAIL],
'language/expressions/class/async-gen-method-yield-promise-reject-next-catch': [FAIL],
'language/expressions/object/method-definition/async-gen-yield-promise-reject-next': [FAIL],
'language/expressions/object/method-definition/async-gen-yield-promise-reject-next-catch': [FAIL],
'language/statements/async-generator/yield-promise-reject-next': [FAIL],
'language/statements/async-generator/yield-promise-reject-next-catch': [FAIL],
'language/statements/class/async-gen-method-static-yield-promise-reject-next': [FAIL],
'language/statements/class/async-gen-method-static-yield-promise-reject-next-catch': [FAIL],
'language/statements/class/async-gen-method-yield-promise-reject-next': [FAIL],
'language/statements/class/async-gen-method-yield-promise-reject-next-catch': [FAIL],
'language/statements/for-await-of/async-func-decl-dstr-array-elem-init-let': [FAIL],
'language/statements/for-await-of/async-func-decl-dstr-array-elem-put-let': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-init-let': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-put-let': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-elision-iter-abpt': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-get-err': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-nrml-close-null': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-rtrn-close': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-rtrn-close-err': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-rtrn-close-null': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-rtrn-close-err': [PASS, FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-rtrn-close-null': [FAIL],
# https://bugs.chromium.org/p/v8/issues/detail?id=6541 # https://bugs.chromium.org/p/v8/issues/detail?id=6541
'language/export/escaped-as-export-specifier': [FAIL], 'language/export/escaped-as-export-specifier': [FAIL],
'language/export/escaped-from': [FAIL], 'language/export/escaped-from': [FAIL],
...@@ -633,6 +603,20 @@ ...@@ -633,6 +603,20 @@
'language/statements/for-await-of/async-gen-dstr-const-obj-ptrn-rest-nested-obj': [FAIL], 'language/statements/for-await-of/async-gen-dstr-const-obj-ptrn-rest-nested-obj': [FAIL],
'language/statements/for-await-of/async-func-dstr-const-obj-ptrn-rest-obj-own-property': [FAIL], 'language/statements/for-await-of/async-func-dstr-const-obj-ptrn-rest-obj-own-property': [FAIL],
# Async Iteration https://github.com/tc39/test262/issues/1154
'language/statements/for-await-of/async-func-decl-dstr-array-elem-init-let': [FAIL],
'language/statements/for-await-of/async-func-decl-dstr-array-elem-put-let': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-init-let': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-put-let': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-elision-iter-abpt': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-get-err': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-nrml-close-null': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-rtrn-close-err': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-rtrn-close-null': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-rtrn-close-null': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-list-rtrn-close': [FAIL],
'language/statements/for-await-of/async-gen-decl-dstr-array-elem-trlg-iter-rest-rtrn-close-err': [PASS, FAIL],
############################ SKIPPED TESTS ############################# ############################ SKIPPED TESTS #############################
# These tests take a looong time to run. # These tests take a looong time to run.
......
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