1// Copyright 2019 the V8 project authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include 'src/builtins/builtins-typed-array-gen.h' 6 7namespace typed_array { 8const kBuiltinNameSome: constexpr string = '%TypedArray%.prototype.some'; 9 10transitioning macro SomeAllElements(implicit context: Context)( 11 array: typed_array::AttachedJSTypedArray, callbackfn: Callable, 12 thisArg: JSAny): Boolean { 13 let witness = typed_array::NewAttachedJSTypedArrayWitness(array); 14 const length: uintptr = witness.Get().length; 15 for (let k: uintptr = 0; k < length; k++) { 16 // BUG(4895): We should throw on detached buffers rather than simply exit. 17 witness.Recheck() otherwise break; 18 const value: JSAny = witness.Load(k); 19 // TODO(v8:4153): Consider versioning this loop for Smi and non-Smi 20 // indices to optimize Convert<Number>(k) for the most common case. 21 const result = Call( 22 context, callbackfn, thisArg, value, Convert<Number>(k), 23 witness.GetStable()); 24 if (ToBoolean(result)) { 25 return True; 26 } 27 } 28 return False; 29} 30 31// https://tc39.github.io/ecma262/#sec-%typedarray%.prototype.some 32transitioning javascript builtin 33TypedArrayPrototypeSome( 34 js-implicit context: NativeContext, receiver: JSAny)(...arguments): JSAny { 35 // arguments[0] = callback 36 // arguments[1] = thisArg. 37 try { 38 const array: JSTypedArray = Cast<JSTypedArray>(receiver) 39 otherwise NotTypedArray; 40 const uarray = typed_array::EnsureAttached(array) otherwise IsDetached; 41 42 const callbackfn = Cast<Callable>(arguments[0]) otherwise NotCallable; 43 const thisArg = arguments[1]; 44 return SomeAllElements(uarray, callbackfn, thisArg); 45 } label NotCallable deferred { 46 ThrowTypeError(MessageTemplate::kCalledNonCallable, arguments[0]); 47 } label NotTypedArray deferred { 48 ThrowTypeError(MessageTemplate::kNotTypedArray, kBuiltinNameSome); 49 } label IsDetached deferred { 50 ThrowTypeError(MessageTemplate::kDetachedOperation, kBuiltinNameSome); 51 } 52} 53} 54