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Merge pull request #23566 from ajafff/generator-cfa

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binder: don't inline control flow of generator function
This commit is contained in:
Mohamed Hegazy
2018-04-20 09:11:50 -07:00
committed by GitHub
parent 8ae065e214 8e565fb4a6
commit c8e4b7ba50
6 changed files with 302 additions and 23 deletions
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5
src/compiler/binder.ts
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@@ -516,8 +516,9 @@ namespace ts {
const saveReturnTarget = currentReturnTarget;
const saveActiveLabels = activeLabels;
const saveHasExplicitReturn = hasExplicitReturn;
const isIIFE = containerFlags & ContainerFlags.IsFunctionExpression && !hasModifier(node, ModifierFlags.Async) && !!getImmediatelyInvokedFunctionExpression(node);
// A non-async IIFE is considered part of the containing control flow. Return statements behave
const isIIFE = containerFlags & ContainerFlags.IsFunctionExpression && !hasModifier(node, ModifierFlags.Async) &&
!(<FunctionLikeDeclaration>node).asteriskToken && !!getImmediatelyInvokedFunctionExpression(node);
// A non-async, non-generator IIFE is considered part of the containing control flow. Return statements behave
// similarly to break statements that exit to a label just past the statement body.
if (!isIIFE) {
currentFlow = { flags: FlowFlags.Start };