Alexander Markov
56bd70b257
Follow-up to https://dart-review.googlesource.com/c/sdk/+/208981/comments/b4974489_d4a790dd. TEST=change in comment Change-Id: Ic581331843924da555dc528c8995943a94b7cef7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/208985 Auto-Submit: Alexander Markov <alexmarkov@google.com> Commit-Queue: Alexander Markov <alexmarkov@google.com> Commit-Queue: Alexander Aprelev <aam@google.com> Reviewed-by: Alexander Aprelev <aam@google.com>
92 lines
3.3 KiB
C++
92 lines
3.3 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#include "vm/bootstrap_natives.h"
|
|
|
|
#include "vm/compiler/jit/compiler.h"
|
|
#include "vm/dart_entry.h"
|
|
#include "vm/exceptions.h"
|
|
#include "vm/native_entry.h"
|
|
#include "vm/object.h"
|
|
#include "vm/symbols.h"
|
|
|
|
namespace dart {
|
|
|
|
DEFINE_NATIVE_ENTRY(Function_apply, 0, 2) {
|
|
const int kTypeArgsLen = 0; // TODO(regis): Add support for generic function.
|
|
const Array& fun_arguments =
|
|
Array::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
const Array& fun_arg_names =
|
|
Array::CheckedHandle(zone, arguments->NativeArgAt(1));
|
|
const Array& fun_args_desc = Array::Handle(
|
|
zone, ArgumentsDescriptor::NewBoxed(kTypeArgsLen, fun_arguments.Length(),
|
|
fun_arg_names));
|
|
const Object& result = Object::Handle(
|
|
zone, DartEntry::InvokeClosure(thread, fun_arguments, fun_args_desc));
|
|
if (result.IsError()) {
|
|
Exceptions::PropagateError(Error::Cast(result));
|
|
}
|
|
return result.ptr();
|
|
}
|
|
|
|
static bool ClosureEqualsHelper(Zone* zone,
|
|
const Closure& receiver,
|
|
const Object& other) {
|
|
if (receiver.ptr() == other.ptr()) {
|
|
return true;
|
|
}
|
|
if (!other.IsClosure()) {
|
|
return false;
|
|
}
|
|
const auto& other_closure = Closure::Cast(other);
|
|
// Check that the delayed type argument vectors match.
|
|
if (receiver.delayed_type_arguments() !=
|
|
other_closure.delayed_type_arguments()) {
|
|
// Mismatches should only happen when a generic function is involved.
|
|
ASSERT(Function::Handle(receiver.function()).IsGeneric() ||
|
|
Function::Handle(other_closure.function()).IsGeneric());
|
|
return false;
|
|
}
|
|
// Closures that are not implicit closures (tear-offs) are unique.
|
|
const auto& func_a = Function::Handle(zone, receiver.function());
|
|
if (!func_a.IsImplicitClosureFunction()) {
|
|
return false;
|
|
}
|
|
const auto& func_b = Function::Handle(zone, other_closure.function());
|
|
if (!func_b.IsImplicitClosureFunction()) {
|
|
return false;
|
|
}
|
|
// If the closure functions are not the same, check the function's name and
|
|
// owner, as multiple function objects could exist for the same function due
|
|
// to hot reload.
|
|
if (func_a.ptr() != func_b.ptr() &&
|
|
(func_a.name() != func_b.name() || func_a.Owner() != func_b.Owner() ||
|
|
func_a.is_static() != func_b.is_static())) {
|
|
return false;
|
|
}
|
|
if (!func_a.is_static()) {
|
|
// Check that the both receiver instances are the same.
|
|
const Context& context_a = Context::Handle(zone, receiver.context());
|
|
const Context& context_b = Context::Handle(zone, other_closure.context());
|
|
return context_a.At(0) == context_b.At(0);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
DEFINE_NATIVE_ENTRY(Closure_equals, 0, 2) {
|
|
const Closure& receiver =
|
|
Closure::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
GET_NATIVE_ARGUMENT(Instance, other, arguments->NativeArgAt(1));
|
|
ASSERT(!other.IsNull());
|
|
return Bool::Get(ClosureEqualsHelper(zone, receiver, other)).ptr();
|
|
}
|
|
|
|
DEFINE_NATIVE_ENTRY(Closure_computeHash, 0, 1) {
|
|
const Closure& receiver =
|
|
Closure::CheckedHandle(zone, arguments->NativeArgAt(0));
|
|
return Smi::New(receiver.ComputeHash());
|
|
}
|
|
|
|
} // namespace dart
|