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

35 lines
945 B
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.
IfStatement ( AwaitExpression BooleanLiteral )
info: |
ModuleItem:
StatementListItem[~Yield, +Await, ~Return]
...
IfStatement[Yield, Await, Return]:
if(Expression[+In, ?Yield, ?Await])Statement[?Yield, ?Await, ?Return]elseStatement[?Yield, ?Await, ?Return]
if(Expression[+In, ?Yield, ?Await])Statement[?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]
---*/
if (await false) {};