2019-08-05 23:07:53 -04:00

54 lines
1.1 KiB
JavaScript

// Copyright (C) 2019 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
Valid syntax for top level await. It propagates to nested blocks
TryStatement with AwaitExpression
info: |
ModuleItem:
StatementListItem[~Yield, +Await, ~Return]
...
TryStatement[Yield, Await, Return]:
try Block[?Yield, ?Await, ?Return] Catch[?Yield, ?Await, ?Return]
try Block[?Yield, ?Await, ?Return] Finally[?Yield, ?Await, ?Return]
try Block[?Yield, ?Await, ?Return] Catch[?Yield, ?Await, ?Return] Finally[?Yield, ?Await, ?Return]
...
ExpressionStatement[Yield, Await]:
[lookahead ∉ { {, function, async [no LineTerminator here] function, class, let [ }]
Expression[+In, ?Yield, ?Await];
UnaryExpression[Yield, Await]
[+Await]AwaitExpression[?Yield]
AwaitExpression[Yield]:
await UnaryExpression[?Yield, +Await]
esid: prod-AwaitExpression
flags: [module]
features: [top-level-await]
---*/
try {
await 0;
} catch(e) {
await 1;
}
try {
await 0;
} finally {
await 1;
}
try {
await 0;
} catch(e) {
await 1;
} finally {
await 2;
}