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// |reftest| skip -- explicit-resource-management is not supported
// Copyright (C) 2024 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Test if disposed methods are called in correct syntax.
includes: [compareArray.js]
features: [explicit-resource-management]
---*/
// Block ----------------
let blockValues = [];
(function TestUsingInBlock() {
{
using x = {
value: 1,
[Symbol.dispose]() {
blockValues.push(42);
}
};
blockValues.push(43);
}
})();
assert.compareArray(blockValues, [43, 42]);
// CaseBlock --------------
let caseBlockValues = [];
(function TestUsingInCaseBlock() {
let label = 1;
switch (label) {
case 1:
using x = {
value: 1,
[Symbol.dispose]() {
caseBlockValues.push(42);
}
};
}
caseBlockValues.push(43);
})();
assert.compareArray(caseBlockValues, [42, 43]);
// ForStatement --------------
let forStatementValues = [];
(function TestUsingInForStatement() {
for (let i = 0; i < 3; i++) {
using x = {
value: i,
[Symbol.dispose]() {
forStatementValues.push(this.value);
}
};
}
forStatementValues.push(3);
})();
assert.compareArray(forStatementValues, [0, 1, 2, 3]);
// ForInStatement --------------
let forInStatementValues = [];
(function TestUsingInForInStatement() {
for (let i in [0, 1]) {
using x = {
value: i,
[Symbol.dispose]() {
forInStatementValues.push(this.value);
}
};
}
forInStatementValues.push('2');
})();
assert.compareArray(forInStatementValues, ['0', '1', '2']);
// ForOfStatement --------------
let forOfStatementValues = [];
(function TestUsingInForOfStatement() {
for (let i of [0, 1]) {
using x = {
value: i,
[Symbol.dispose]() {
forOfStatementValues.push(this.value);
}
};
}
forOfStatementValues.push(2);
})();
assert.compareArray(forOfStatementValues, [0, 1, 2]);
// FunctionBody --------------
let functionBodyValues = [];
(function TestUsingInFunctionBody() {
using x = {
value: 1,
[Symbol.dispose]() {
functionBodyValues.push(42);
}
};
using y = {
value: 2,
[Symbol.dispose]() {
functionBodyValues.push(43);
}
};
})();
assert.compareArray(functionBodyValues, [43, 42]);
// GeneratorBody --------------
let generatorBodyValues = [];
function* gen() {
using x = {
value: 1,
[Symbol.dispose]() {
generatorBodyValues.push(42);
}
};
yield x;
}
(function TestUsingInGeneratorBody() {
let iter = gen();
iter.next();
iter.next();
generatorBodyValues.push(43);
})();
assert.compareArray(generatorBodyValues, [42, 43]);
// ClassStaticBlockBody --------------
let classStaticBlockBodyValues = [];
class staticBlockClass {
static {
using x = {
value: 1,
[Symbol.dispose]() {
classStaticBlockBodyValues.push(42);
}
};
}
}
(function TestUsingInAsyncFunctionBody() {
let example = new staticBlockClass();
})();
assert.compareArray(classStaticBlockBodyValues, [42]);
// Derived constructor case
let derivedConstructorValues = [];
class baseClass {
constructor() {
derivedConstructorValues.push(43);
}
}
class subClass extends baseClass {
constructor() {
try {
using x = {
value: 1,
[Symbol.dispose]() {
derivedConstructorValues.push(42);
}
};
} catch (e) {
return;
} finally {
super();
}
}
}
(function TestUsingInDerivedConstructor() {
let example = new subClass();
})();
assert.compareArray(derivedConstructorValues, [42, 43]);
// Lack of dispose method
let values = [];
function TestUsingWithoutDisposeMethod() {
{
using x = {value: 1};
values.push(43);
}
}
assert.throws(TypeError, TestUsingWithoutDisposeMethod, 'No dispose method');
reportCompare(0, 0);
|
