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Don't use innerExpression in parenthesizeForAccess

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Jason Freeman 2015-06-03 17:34:56 -07:00
parent 26cf97430e
commit e940fdc534
1 changed files with 5 additions and 6 deletions
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11
src/compiler/emitter.ts
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@ -1646,9 +1646,8 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
function parenthesizeForAccess(expr: Expression): LeftHandSideExpression { function parenthesizeForAccess(expr: Expression): LeftHandSideExpression {
// When diagnosing whether the expression needs parentheses, the decision should be based // When diagnosing whether the expression needs parentheses, the decision should be based
// on the innermost expression in a chain of nested type assertions. // on the innermost expression in a chain of nested type assertions.
let innerExpression = expr; while (expr.kind === SyntaxKind.TypeAssertionExpression) {
while (innerExpression.kind === SyntaxKind.TypeAssertionExpression) { expr = (<TypeAssertion>expr).expression;
innerExpression = (<TypeAssertion>innerExpression).expression;
} }
// isLeftHandSideExpression is almost the correct criterion for when it is not necessary // isLeftHandSideExpression is almost the correct criterion for when it is not necessary
@ -1659,9 +1658,9 @@ var __param = (this && this.__param) || function (paramIndex, decorator) {
// NumberLiteral // NumberLiteral
// 1.x -> not the same as (1).x // 1.x -> not the same as (1).x
// //
if (isLeftHandSideExpression(innerExpression) && if (isLeftHandSideExpression(expr) &&
innerExpression.kind !== SyntaxKind.NewExpression && expr.kind !== SyntaxKind.NewExpression &&
innerExpression.kind !== SyntaxKind.NumericLiteral) { expr.kind !== SyntaxKind.NumericLiteral) {
return <LeftHandSideExpression>expr; return <LeftHandSideExpression>expr;
} }