blob: 24a13dbc23eea1cda8928b2d7c0bfed7d31d500a [file] [log] [blame]
// Copyright 2019 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.
#include 'src/builtins/builtins-typed-array-gen.h'
namespace typed_array {
const kBuiltinNameFind: constexpr string = '%TypedArray%.prototype.find';
transitioning macro FindAllElements(implicit context: Context)(
array: typed_array::AttachedJSTypedArray, callbackfn: Callable,
thisArg: JSAny): JSAny {
let witness = typed_array::NewAttachedJSTypedArrayWitness(array);
const length: uintptr = witness.Get().length;
for (let k: uintptr = 0; k < length; k++) {
// BUG(4895): We should throw on detached buffers rather than simply exit.
witness.Recheck() otherwise break;
const value: JSAny = witness.Load(k);
// TODO(v8:4153): Consider versioning this loop for Smi and non-Smi
// indices to optimize Convert<Number>(k) for the most common case.
const result = Call(
context, callbackfn, thisArg, value, Convert<Number>(k),
witness.GetStable());
if (ToBoolean(result)) {
return value;
}
}
return Undefined;
}
// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.find
transitioning javascript builtin
TypedArrayPrototypeFind(
js-implicit context: NativeContext, receiver: JSAny)(...arguments): JSAny {
// arguments[0] = callback
// arguments[1] = thisArg
try {
const array: JSTypedArray = Cast<JSTypedArray>(receiver)
otherwise NotTypedArray;
const uarray = typed_array::EnsureAttached(array) otherwise IsDetached;
const callbackfn = Cast<Callable>(arguments[0]) otherwise NotCallable;
const thisArg = arguments[1];
return FindAllElements(uarray, callbackfn, thisArg);
} label NotCallable deferred {
ThrowTypeError(MessageTemplate::kCalledNonCallable, arguments[0]);
} label NotTypedArray deferred {
ThrowTypeError(MessageTemplate::kNotTypedArray, kBuiltinNameFind);
} label IsDetached deferred {
ThrowTypeError(MessageTemplate::kDetachedOperation, kBuiltinNameFind);
}
}
}