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do not inline async IIFEs in control flow graph

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This commit is contained in:
Vladimir Matveev
2016-10-28 14:43:08 -07:00
parent d54e889cf2
commit 73c59bbf85
5 changed files with 81 additions and 2 deletions
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4
src/compiler/binder.ts
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@@ -490,8 +490,8 @@ namespace ts {
const saveReturnTarget = currentReturnTarget;
const saveActiveLabels = activeLabels;
const saveHasExplicitReturn = hasExplicitReturn;
const isIIFE = containerFlags & ContainerFlags.IsFunctionExpression && !!getImmediatelyInvokedFunctionExpression(node);
// An IIFE is considered part of the containing control flow. Return statements behave
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
// similarly to break statements that exit to a label just past the statement body.
if (isIIFE) {
currentReturnTarget = createBranchLabel();