mirror of https://github.com/tc39/test262.git
74 lines
1.8 KiB
JavaScript
74 lines
1.8 KiB
JavaScript
|
// This file was procedurally generated from the following sources:
|
|||
|
|
// - src/function-forms/unscopables-with.case
|
|||
|
|
// - src/function-forms/default/async-func-decl.template
|
|||
|
|
/*---
|
|||
|
|
description: Symbol.unscopables behavior across scope boundaries (async function declaration)
|
|||
|
|
esid: sec-async-function-definitions
|
|||
|
|
features: [globalThis, Symbol.unscopables, async-functions]
|
|||
|
|
flags: [generated, noStrict, async]
|
|||
|
|
info: |
|
|||
|
|
14.6 Async Function Definitions
|
|||
|
|
|
|||
|
|
AsyncFunctionDeclaration :
|
|||
|
|
async function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
|
|||
|
|
|
|||
|
|
|
|||
|
|
...
|
|||
|
|
Let envRec be lex's EnvironmentRecord.
|
|||
|
|
Let exists be ? envRec.HasBinding(name).
|
|||
|
|
|
|||
|
|
HasBinding
|
|||
|
|
|
|||
|
|
...
|
|||
|
|
If the withEnvironment flag of envRec is false, return true.
|
|||
|
|
Let unscopables be ? Get(bindings, @@unscopables).
|
|||
|
|
If Type(unscopables) is Object, then
|
|||
|
|
Let blocked be ToBoolean(? Get(unscopables, N)).
|
|||
|
|
If blocked is true, return false.
|
|||
|
|
|
|||
|
|
(The `with` Statement) Runtime Semantics: Evaluation
|
|||
|
|
|
|||
|
|
...
|
|||
|
|
Set the withEnvironment flag of newEnv’s EnvironmentRecord to true.
|
|||
|
|
...
|
|||
|
|
|
|||
|
|
---*/
|
|||
|
|
let count = 0;
|
|||
|
|
var v = 1;
|
|||
|
|
globalThis[Symbol.unscopables] = {
|
|||
|
|
v: true,
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
{
|
|||
|
|
count++;
|
|||
|
|
|
|||
|
|
|
|||
|
|
var callCount = 0;
|
|||
|
|
|
|||
|
|
// Stores a reference `ref` for case evaluation
|
|||
|
|
async function ref(x) {
|
|||
|
|
count++;
|
|||
|
|
with (globalThis) {
|
|||
|
|
count++;
|
|||
|
|
assert.sameValue(v, undefined, 'The value of `v` is expected to equal `undefined`');
|
|||
|
|
}
|
|||
|
|
count++;
|
|||
|
|
var v = x;
|
|||
|
|
with (globalThis) {
|
|||
|
|
count++;
|
|||
|
|
assert.sameValue(v, 10, 'The value of `v` is 10');
|
|||
|
|
v = 20;
|
|||
|
|
}
|
|||
|
|
assert.sameValue(v, 20, 'The value of `v` is 20');
|
|||
|
|
assert.sameValue(globalThis.v, 1, 'The value of globalThis.v is 1');
|
|||
|
|
callCount = callCount + 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
ref(10).then(() => {
|
|||
|
|
assert.sameValue(callCount, 1, 'function invoked exactly once');
|
|||
|
|
}).then($DONE, $DONE);
|
|||
|
|
|
|||
|
|
count++;
|
|||
|
|
}
|
|||
|
|
assert.sameValue(count, 6, 'The value of `count` is 6');
|