blob: b7424f5ef84aa22666d6cea97ac135a25d99c0f8 [file] [log] [blame]
// 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.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, 2) {
const Array& fun_arguments = Array::CheckedHandle(arguments->NativeArgAt(0));
const Array& fun_arg_names = Array::CheckedHandle(arguments->NativeArgAt(1));
const Array& fun_args_desc =
Array::Handle(ArgumentsDescriptor::New(fun_arguments.Length(),
fun_arg_names));
const Object& result =
Object::Handle(DartEntry::InvokeClosure(fun_arguments, fun_args_desc));
if (result.IsError()) {
Exceptions::PropagateError(Error::Cast(result));
}
return result.raw();
}
DEFINE_NATIVE_ENTRY(Closure_equals, 2) {
const Closure& receiver = Closure::CheckedHandle(
zone, arguments->NativeArgAt(0));
GET_NATIVE_ARGUMENT(Instance, other, arguments->NativeArgAt(1));
ASSERT(!other.IsNull());
if (receiver.raw() == other.raw()) return Bool::True().raw();
if (other.IsClosure()) {
const Function& func_a = Function::Handle(receiver.function());
const Function& func_b = Function::Handle(Closure::Cast(other).function());
if (func_a.raw() == func_b.raw()) {
ASSERT(!func_a.IsImplicitStaticClosureFunction());
if (func_a.IsImplicitInstanceClosureFunction()) {
const Context& context_a = Context::Handle(receiver.context());
const Context& context_b = Context::Handle(
Closure::Cast(other).context());
const Object& receiver_a = Object::Handle(context_a.At(0));
const Object& receiver_b = Object::Handle(context_b.At(0));
if (receiver_a.raw() == receiver_b.raw()) return Bool::True().raw();
}
}
}
return Bool::False().raw();
}
DEFINE_NATIVE_ENTRY(Closure_hashCode, 1) {
const Closure& receiver = Closure::CheckedHandle(
zone, arguments->NativeArgAt(0));
const Function& func = Function::Handle(receiver.function());
// Hash together name, class name and signature.
const Class& cls = Class::Handle(func.Owner());
intptr_t result = String::Handle(func.name()).Hash();
result += String::Handle(func.Signature()).Hash();
result += String::Handle(cls.Name()).Hash();
// Finalize hash value like for strings so that it fits into a smi.
result += result << 3;
result ^= result >> 11;
result += result << 15;
result &= ((static_cast<intptr_t>(1) << String::kHashBits) - 1);
return Smi::New(result);
}
DEFINE_NATIVE_ENTRY(Closure_clone, 1) {
const Closure& receiver = Closure::CheckedHandle(
zone, arguments->NativeArgAt(0));
const Function& func = Function::Handle(zone, receiver.function());
const Context& ctx = Context::Handle(zone, receiver.context());
Context& cloned_ctx =
Context::Handle(zone, Context::New(ctx.num_variables()));
cloned_ctx.set_parent(Context::Handle(zone, ctx.parent()));
Object& inst = Object::Handle(zone);
for (int i = 0; i < ctx.num_variables(); i++) {
inst = ctx.At(i);
cloned_ctx.SetAt(i, inst);
}
return Closure::New(func, cloned_ctx);
}
} // namespace dart