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// Copyright (C) 2017 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
path: language/expressions/async-arrow-function/
name: async arrow function expression
esid: sec-async-arrow-function-definitions
info: |
14.7 Async Arrow Function Definitions
AsyncArrowFunction :
...
CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody
AsyncConciseBody :
{ AsyncFunctionBody }
...
Supplemental Syntax
When processing an instance of the production AsyncArrowFunction :
CoverCallExpressionAndAsyncArrowHead => AsyncConciseBody the interpretation of
CoverCallExpressionAndAsyncArrowHead is refined using the following grammar:
AsyncArrowHead :
async ArrowFormalParameters
flags: [async]
---*/
var callCount = 0;
var f;
f = async (/*{ params }*/) => {
/*{ body }*/
callCount = callCount + 1;
};
f(/*{ args }*/)
.then(_ => {
throw new Test262Error('function should not be resolved');
}, error => assert.sameValue(error.constructor, /*{ error }*/))
.then(() => {
assert.sameValue(callCount, 0, 'function body is not evaluated');
}, $DONE)
.then($DONE, $DONE);
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