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// Copyright 2023 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.
// Flags: --allow-natives-syntax --maglev
function foo(...args) {
return {'this': this, 'arguments': args};
}
function validCalls(a, ...args) {
let obj = {};
// No receiver or receiver is null or undefined.
assertEquals({'this': this, 'arguments': []}, foo.apply());
assertEquals({'this': this, 'arguments': []}, foo.apply(null));
assertEquals({'this': this, 'arguments': []}, foo.apply(undefined));
// Receiver is object.
assertEquals({'this': obj, 'arguments': []}, foo.apply(obj));
// Valid arguments array.
assertEquals({'this': this, 'arguments': [3, 4]}, foo.apply(null, args));
assertEquals({'this': obj, 'arguments': [3, 4]}, foo.apply(obj, args));
assertEquals(
{'this': this, 'arguments': [2, 3, 4]}, foo.apply(null, [a, ...args]));
assertEquals(
{'this': obj, 'arguments': [2, 3, 4]}, foo.apply(obj, [a, ...args]));
// Extra arguments are ignored.
assertEquals({'this': this, 'arguments': [3, 4]}, foo.apply(null, args, a));
assertEquals({'this': obj, 'arguments': [3, 4]}, foo.apply(obj, args, a));
}
%PrepareFunctionForOptimization(validCalls);
validCalls(2, 3, 4);
validCalls(2, 3, 4);
%OptimizeMaglevOnNextCall(validCalls);
validCalls(2, 3, 4);
function invalidArgsArrayExplicitReceiver(a) {
return foo.apply(null, a);
}
%PrepareFunctionForOptimization(invalidArgsArrayExplicitReceiver);
assertThrows(
() => invalidArgsArrayExplicitReceiver(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertThrows(
() => invalidArgsArrayExplicitReceiver(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertEquals(
{'this': this, 'arguments': []},
invalidArgsArrayExplicitReceiver(null, null, null));
%OptimizeMaglevOnNextCall(invalidArgsArrayExplicitReceiver);
assertThrows(
() => invalidArgsArrayExplicitReceiver(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertEquals(
{'this': this, 'arguments': []},
invalidArgsArrayExplicitReceiver(null, null, null));
function invalidArgsArrayImplicitReceiver(...args) {
return foo.apply(...args);
}
%PrepareFunctionForOptimization(invalidArgsArrayImplicitReceiver);
assertThrows(
() => invalidArgsArrayImplicitReceiver(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertThrows(
() => invalidArgsArrayImplicitReceiver(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertEquals(
{'this': this, 'arguments': []},
invalidArgsArrayImplicitReceiver(null, null, null));
%OptimizeMaglevOnNextCall(invalidArgsArrayImplicitReceiver);
assertThrows(
() => invalidArgsArrayImplicitReceiver(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertEquals(
{'this': this, 'arguments': []},
invalidArgsArrayImplicitReceiver(null, null, null));
function invalidArgsArrayWithExtraSpread(a, ...args) {
return foo.apply(null, a, ...args);
}
%PrepareFunctionForOptimization(invalidArgsArrayWithExtraSpread);
assertThrows(
() => invalidArgsArrayWithExtraSpread(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertThrows(
() => invalidArgsArrayWithExtraSpread(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertEquals(
{'this': this, 'arguments': []},
invalidArgsArrayWithExtraSpread(null, null, null));
%OptimizeMaglevOnNextCall(invalidArgsArrayWithExtraSpread);
assertThrows(
() => invalidArgsArrayWithExtraSpread(2, 3, 4), TypeError,
'CreateListFromArrayLike called on non-object');
assertEquals(
{'this': this, 'arguments': []},
invalidArgsArrayWithExtraSpread(null, null, null));
function nullArgsArray(a, ...args) {
assertEquals({'this': this, 'arguments': []}, foo.apply(null, null));
}
%PrepareFunctionForOptimization(nullArgsArray);
nullArgsArray(2, 3, 4);
nullArgsArray(2, 3, 4);
nullArgsArray(null, null, null);
%OptimizeMaglevOnNextCall(nullArgsArray);
nullArgsArray(2, 3, 4);
nullArgsArray(null, null, null);
function nullArgsArrayWithExtraSpread(a, ...args) {
assertEquals({'this': this, 'arguments': []}, foo.apply(null, null, ...args));
}
%PrepareFunctionForOptimization(nullArgsArrayWithExtraSpread);
nullArgsArrayWithExtraSpread(2, 3, 4);
nullArgsArrayWithExtraSpread(2, 3, 4);
nullArgsArrayWithExtraSpread(null, null, null);
%OptimizeMaglevOnNextCall(nullArgsArrayWithExtraSpread);
nullArgsArrayWithExtraSpread(2, 3, 4);
nullArgsArrayWithExtraSpread(null, null, null);
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