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spec.emu
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<!doctype html>
<meta charset="utf8">
<link rel="stylesheet" href="./spec.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/8.4/styles/github.min.css">
<script src="./spec.js"></script>
<pre class="metadata">
title: Proposal await.ops
stage: 0
contributors: "Jack Works"
</pre>
<emu-clause id="sec-ecmascript-language-functions-and-classes" number="15">
<h1>ECMAScript Language: Functions and Classes</h1>
<emu-clause id="sec-async-function-definitions" number="8">
<h1>Async Function Definitions</h1>
<h2>Syntax</h2>
<emu-grammar type="definition">
AwaitExpression[Yield] :
`await` UnaryExpression[?Yield, +Await]
<ins>
`await` `.` `all` UnaryExpression[?Yield, +Await]
`await` `.` `allSettled` UnaryExpression[?Yield, +Await]
`await` `.` `any` UnaryExpression[?Yield, +Await]
`await` `.` `race` UnaryExpression[?Yield, +Await]
</ins>
</emu-grammar>
<emu-clause id="sec-async-function-definitions-runtime-semantics-evaluation" number="5">
<h1>Runtime Semantics: Evaluation</h1>
<emu-grammar>
AwaitExpression : `await` `.` `all` UnaryExpression
</emu-grammar>
<emu-alg>
1. Let _exprRef_ be ? Evaluation of |UnaryExpression|.
1. Let _value_ be ? GetValue(_exprRef_).
1. Let _pendingPromise_ be ? Call(%Promise.all%, %Promise%, « _value_ »).
1. Return ? Await(_pendingPromise_).
</emu-alg>
<emu-grammar>
AwaitExpression : `await` `.` `allSettled` UnaryExpression
</emu-grammar>
<emu-alg>
1. Let _exprRef_ be ? Evaluation of |UnaryExpression|.
1. Let _value_ be ? GetValue(_exprRef_).
1. Let _pendingPromise_ be ? Call(%Promise.allSettled%, %Promise%, « _value_ »).
1. Return ? Await(_pendingPromise_).
</emu-alg>
<emu-grammar>
AwaitExpression : `await` `.` `any` UnaryExpression
</emu-grammar>
<emu-alg>
1. Let _exprRef_ be ? Evaluation of |UnaryExpression|.
1. Let _value_ be ? GetValue(_exprRef_).
1. Let _pendingPromise_ be ? Call(%Promise.any%, %Promise%, « _value_ »).
1. Return ? Await(_pendingPromise_).
</emu-alg>
<emu-grammar>
AwaitExpression : `await` `.` `race` UnaryExpression
</emu-grammar>
<emu-alg>
1. Let _exprRef_ be ? Evaluation of |UnaryExpression|.
1. Let _value_ be ? GetValue(_exprRef_).
1. Let _pendingPromise_ be ? Call(%Promise.race%, %Promise%, « _value_ »).
1. Return ? Await(_pendingPromise_).
</emu-alg>
</emu-clause>
</emu-clause>
</emu-clause>