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Don't replace the last statement if 'this' is used/captured within the constructor.

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Daniel Rosenwasser
2016-12-13 11:58:58 -08:00
parent e5e1533d49
commit 7da4b857f2
1 changed files with 5 additions and 2 deletions
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src/compiler/transformers/es2015.ts
+5 -2
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@@ -1024,8 +1024,11 @@ namespace ts {
}
}
// Return the result if we have an immediate super() call on the last statement.
if (superCallExpression && statementOffset === ctorStatements.length - 1) {
// Return the result if we have an immediate super() call on the last statement,
// but only if the constructor itself doesn't use 'this' elsewhere.
if (superCallExpression
&& statementOffset === ctorStatements.length - 1
&& !(ctor.transformFlags & (TransformFlags.ContainsLexicalThis | TransformFlags.ContainsCapturedLexicalThis))) {
const returnStatement = createReturn(superCallExpression);
if (superCallExpression.kind !== SyntaxKind.BinaryExpression