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Merge pull request #23887 from agentcooper/async-generator-resolve-promise

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Resolve promise inside async generator
This commit is contained in:
Ron Buckton
2018-05-09 00:23:47 -07:00
committed by GitHub
parent 030b8fc8a6 d88210b270
commit f17bf54bfe
14 changed files with 150 additions and 115 deletions
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42
src/compiler/transformers/esnext.ts
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@@ -118,21 +118,38 @@ namespace ts {
}
function visitYieldExpression(node: YieldExpression) {
if (enclosingFunctionFlags & FunctionFlags.Async && enclosingFunctionFlags & FunctionFlags.Generator && node.asteriskToken) {
const expression = visitNode(node.expression, visitor, isExpression);
if (enclosingFunctionFlags & FunctionFlags.Async && enclosingFunctionFlags & FunctionFlags.Generator) {
if (node.asteriskToken) {
const expression = visitNode(node.expression, visitor, isExpression);
return setOriginalNode(
setTextRange(
createYield(
createAwaitHelper(context,
updateYield(
node,
node.asteriskToken,
createAsyncDelegatorHelper(
context,
createAsyncValuesHelper(context, expression, expression),
expression
)
)
)
),
node
),
node
);
}
return setOriginalNode(
setTextRange(
createYield(
createAwaitHelper(context,
updateYield(
node,
node.asteriskToken,
createAsyncDelegatorHelper(
context,
createAsyncValuesHelper(context, expression, expression),
expression
)
)
createDownlevelAwait(
node.expression
? visitNode(node.expression, visitor, isExpression)
: createVoidZero()
)
),
node
@@ -140,6 +157,7 @@ namespace ts {
node
);
}
return visitEachChild(node, visitor, context);
}