// GENERATED, DO NOT EDIT // file: iteratorZipUtils.js // Copyright (C) 2025 André Bargull. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description:| UtilityfunctionsfortestingIterator.prototype.zipandIterator.prototype.zipKeyed.RequiresinclusionofpropertyHelper.js. defines: -forEachSequenceCombination -forEachSequenceCombinationKeyed -assertZipped -assertZippedKeyed -assertIteratorResult -assertIsPackedArray
---*/
// Assert |result| is an object created by CreateIteratorResultObject. function assertIteratorResult(result, value, done, label) { assert.sameValue(
Object.getPrototypeOf(result),
Object.prototype,
label + ": [[Prototype]] of iterator result is Object.prototype"
);
assert(Object.isExtensible(result), label + ": iterator result is extensible");
var ownKeys = Reflect.ownKeys(result); assert.compareArray(ownKeys, ["value", "done"], label + ": iterator result properties");
// Assert |array| is a packed array with default property attributes. function assertIsPackedArray(array, label) { assert(Array.isArray(array), label + ": array is an array exotic object");
assert.sameValue(
Object.getPrototypeOf(array),
Array.prototype,
label + ": [[Prototype]] of array is Array.prototype"
);
assert(Object.isExtensible(array), label + ": array is extensible");
// Ensure "length" property has its default property attributes.
verifyProperty(array, "length", {
writable: true,
enumerable: false,
configurable: false,
});
// Ensure no holes and all elements have the default property attributes. for (var i = 0; i < array.length; i++) {
verifyProperty(array, i, {
writable: true,
enumerable: true,
configurable: true,
});
}
}
// Assert |array| is an extensible null-prototype object with default property attributes. function _assertIsNullProtoMutableObject(object, label) { assert.sameValue(
Object.getPrototypeOf(object), null,
label + ": [[Prototype]] of object is null"
);
assert(Object.isExtensible(object), label + ": object is extensible");
// Ensure all properties have the default property attributes. var keys = Object.getOwnPropertyNames(object); for (var i = 0; i < keys.length; i++) {
verifyProperty(object, keys[i], {
writable: true,
enumerable: true,
configurable: true,
});
}
}
// Assert that the `zipped` iterator yields the first `count` outputs of Iterator.zip. // Assumes `inputs` is an array of arrays, each with length >= `count`. // Advances `zipped` by `count` steps. function assertZipped(zipped, inputs, count, label) { // Last returned elements array. var last = null;
for (var i = 0; i < count; i++) { var itemLabel = label + ", step " + i;
var result = zipped.next(); var value = result.value;
// Test IteratorResult structure.
assertIteratorResult(result, value, false, itemLabel);
// Ensure value is a new array. assert.notSameValue(value, last, itemLabel + ": returns a new array");
last = value;
// Ensure all array elements have the expected value. var expected = inputs.map(function (array) { return array[i];
}); assert.compareArray(value, expected, itemLabel + ": values");
// Ensure value is a packed array with default data properties.
assertIsPackedArray(value, itemLabel);
}
}
// Assert that the `zipped` iterator yields the first `count` outputs of Iterator.zipKeyed. // Assumes `inputs` is an object whose values are arrays, each with length >= `count`. // Advances `zipped` by `count` steps. function assertZippedKeyed(zipped, inputs, count, label) { // Last returned elements array. var last = null;
var expectedKeys = Object.keys(inputs);
for (var i = 0; i < count; i++) { var itemLabel = label + ", step " + i;
var result = zipped.next(); var value = result.value;
// Test IteratorResult structure.
assertIteratorResult(result, value, false, itemLabel);
// Ensure resulting object is a new object. assert.notSameValue(value, last, itemLabel + ": returns a new object");
last = value;
// Ensure resulting object has the expected keys and values. assert.compareArray(Reflect.ownKeys(value), expectedKeys, itemLabel + ": result object keys");
var expectedValues = Object.values(inputs).map(function (array) { return array[i];
}); assert.compareArray(Object.values(value), expectedValues, itemLabel + ": result object values");
// Ensure resulting object is a null-prototype mutable object with default data properties.
_assertIsNullProtoMutableObject(value, itemLabel);
}
}
function forEachSequenceCombinationKeyed(callback) { return forEachSequenceCombination(function(inputs, inputsLabel, min, max) { var object = {}; for (var i = 0; i < inputs.length; ++i) {
object["prop_" + i] = inputs[i];
}
inputsLabel = "inputs = " + JSON.stringify(object);
callback(object, inputsLabel, min, max);
});
}
function forEachSequenceCombination(callback) { function test(inputs) { if (inputs.length === 0) {
callback(inputs, "inputs = []", 0, 0); return;
}
var lengths = inputs.map(function(array) { return array.length;
});
var min = Math.min.apply(null, lengths); var max = Math.max.apply(null, lengths);
var inputsLabel = "inputs = " + JSON.stringify(inputs);
callback(inputs, inputsLabel, min, max);
}
// Yield all prefixes of the string |s|. function* prefixes(s) { for (var i = 0; i <= s.length; ++i) {
yield s.slice(0, i);
}
}
// Zip an empty iterable.
test([]);
// Zip a single iterator. for (var prefix of prefixes("abcd")) {
test([prefix.split("")]);
}
// Zip two iterators. for (var prefix1 of prefixes("abcd")) { for (var prefix2 of prefixes("efgh")) {
test([prefix1.split(""), prefix2.split("")]);
}
}
// Zip three iterators. for (var prefix1 of prefixes("abcd")) { for (var prefix2 of prefixes("efgh")) { for (var prefix3 of prefixes("ijkl")) {
test([prefix1.split(""), prefix2.split(""), prefix3.split("")]);
}
}
}
}
// file: proxyTrapsHelper.js // Copyright (C) 2016 Jordan Harband. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description:| Usedtoassertthecorrectnessofobjectbehaviorinthepresence andcontextofProxyobjects. defines:[allowProxyTraps]
---*/
// file: wellKnownIntrinsicObjects.js // Copyright (C) 2018 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- description:| AnArrayofallrepresentableWell-KnownIntrinsicObjects defines:[WellKnownIntrinsicObjects,getWellKnownIntrinsicObject]
---*/
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