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// 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.
#ifndef V8_BUILTINS_BUILTINS_ARRAY_GEN_H_
#define V8_BUILTINS_BUILTINS_ARRAY_GEN_H_
#include "src/codegen/code-stub-assembler.h"
namespace v8 {
namespace internal {
enum AllocationSiteOverrideMode;
class ArrayBuiltinsAssembler : public CodeStubAssembler {
public:
explicit ArrayBuiltinsAssembler(compiler::CodeAssemblerState* state);
using BuiltinResultGenerator =
std::function<void(ArrayBuiltinsAssembler* masm)>;
using CallResultProcessor = std::function<TNode<Object>(
ArrayBuiltinsAssembler* masm, TNode<Object> k_value, TNode<UintPtrT> k)>;
void TypedArrayMapResultGenerator();
// See tc39.github.io/ecma262/#sec-%typedarray%.prototype.map.
TNode<Object> TypedArrayMapProcessor(TNode<Object> k_value,
TNode<UintPtrT> k);
TNode<String> CallJSArrayArrayJoinConcatToSequentialString(
TNode<FixedArray> fixed_array, TNode<IntPtrT> length, TNode<String> sep,
TNode<String> dest) {
TNode<ExternalReference> func = ExternalConstant(
ExternalReference::jsarray_array_join_concat_to_sequential_string());
TNode<ExternalReference> isolate_ptr =
ExternalConstant(ExternalReference::isolate_address(isolate()));
return UncheckedCast<String>(
CallCFunction(func,
MachineType::AnyTagged(), // <return> String
std::make_pair(MachineType::Pointer(), isolate_ptr),
std::make_pair(MachineType::AnyTagged(), fixed_array),
std::make_pair(MachineType::IntPtr(), length),
std::make_pair(MachineType::AnyTagged(), sep),
std::make_pair(MachineType::AnyTagged(), dest)));
}
protected:
TNode<Context> context() { return context_; }
TNode<Object> receiver() { return receiver_; }
TNode<IntPtrT> argc() { return argc_; }
TNode<JSReceiver> o() { return o_; }
TNode<UintPtrT> len() { return len_; }
TNode<Object> callbackfn() { return callbackfn_; }
TNode<Object> this_arg() { return this_arg_; }
TNode<UintPtrT> k() { return k_.value(); }
TNode<Object> a() { return a_.value(); }
void ReturnFromBuiltin(TNode<Object> value);
void InitIteratingArrayBuiltinBody(TNode<Context> context,
TNode<Object> receiver,
TNode<Object> callbackfn,
TNode<Object> this_arg,
TNode<IntPtrT> argc);
void GenerateIteratingTypedArrayBuiltinBody(
const char* name, const BuiltinResultGenerator& generator,
const CallResultProcessor& processor,
ForEachDirection direction = ForEachDirection::kForward);
void TailCallArrayConstructorStub(
const Callable& callable, TNode<Context> context,
TNode<JSFunction> target, TNode<HeapObject> allocation_site_or_undefined,
TNode<Int32T> argc);
void GenerateDispatchToArrayStub(
TNode<Context> context, TNode<JSFunction> target, TNode<Int32T> argc,
AllocationSiteOverrideMode mode,
base::Optional<TNode<AllocationSite>> allocation_site = base::nullopt);
void CreateArrayDispatchNoArgument(
TNode<Context> context, TNode<JSFunction> target, TNode<Int32T> argc,
AllocationSiteOverrideMode mode,
base::Optional<TNode<AllocationSite>> allocation_site);
void CreateArrayDispatchSingleArgument(
TNode<Context> context, TNode<JSFunction> target, TNode<Int32T> argc,
AllocationSiteOverrideMode mode,
base::Optional<TNode<AllocationSite>> allocation_site);
void GenerateConstructor(TNode<Context> context,
TNode<HeapObject> array_function,
TNode<Map> array_map, TNode<Object> array_size,
TNode<HeapObject> allocation_site,
ElementsKind elements_kind, AllocationSiteMode mode);
void GenerateArrayNoArgumentConstructor(ElementsKind kind,
AllocationSiteOverrideMode mode);
void GenerateArraySingleArgumentConstructor(ElementsKind kind,
AllocationSiteOverrideMode mode);
void GenerateArrayNArgumentsConstructor(
TNode<Context> context, TNode<JSFunction> target,
TNode<Object> new_target, TNode<Int32T> argc,
TNode<HeapObject> maybe_allocation_site);
private:
void VisitAllTypedArrayElements(TNode<JSArrayBuffer> array_buffer,
const CallResultProcessor& processor,
ForEachDirection direction,
TNode<JSTypedArray> typed_array,
bool can_shrink);
TNode<Object> callbackfn_;
TNode<JSReceiver> o_;
TNode<Object> this_arg_;
TNode<UintPtrT> len_;
TNode<Context> context_;
TNode<Object> receiver_;
TNode<IntPtrT> argc_;
TNode<BoolT> fast_typed_array_target_;
const char* name_ = nullptr;
TVariable<UintPtrT> k_;
TVariable<Object> a_;
Label fully_spec_compliant_;
ElementsKind source_elements_kind_ = ElementsKind::NO_ELEMENTS;
};
} // namespace internal
} // namespace v8
#endif // V8_BUILTINS_BUILTINS_ARRAY_GEN_H_
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