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Add PromiseCapability wrapper around sync dispose used in an await using #218

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merged 2 commits into from Apr 10, 2024
Merged

Add PromiseCapability wrapper around sync dispose used in an await using #218

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Add PromiseCapability wrapper around sync dispose used in an `await u…
rbuckton Mar 22, 2024
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Merge branch 'main' into async-from-sync-dispose
rbuckton Apr 10, 2024
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9 changes: 6 additions & 3 deletions spec.emu
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Expand Up @@ -1068,9 +1068,12 @@ contributors: Ron Buckton, Ecma International
1. If _method_ is not *undefined*, then
1. Let _closure_ be a new Abstract Closure with no parameters that captures _method_ and performs the following steps when called:
1. Let _O_ be the *this* value.
1. Perform ? Call(_method_, _O_).
1. Return *undefined*.
1. NOTE: This function is not observable to user code. It is used to ensure that a Promise returned from a synchronous `@@dispose` method will not be awaited.
1. Let _promiseCapability_ be ! NewPromiseCapability(%Promise%).
1. Let _result_ be Completion(Call(_method_, _O_)).
1. IfAbruptRejectPromise(_result_, _promiseCapability_).
1. Perform ? Call(_promiseCapability_.[[Resolve]], *undefined*, « *undefined* »).
1. Return _promiseCapability_.[[Promise]].
1. NOTE: This function is not observable to user code. It is used to ensure that a Promise returned from a synchronous `@@dispose` method will not be awaited and that any exception thrown will not be thrown synchronously.
1. Return CreateBuiltinFunction(_closure_, 0, *""*, « »).
1. Else,
1. Let _method_ be ? GetMethod(_V_, @@dispose).
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