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Fixed emit for parenthesized template expressions.

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This commit is contained in:
Daniel Rosenwasser 2014-10-27 16:21:06 -07:00
parent 64097a3c6c
commit aabfebd40e
2 changed files with 8 additions and 4 deletions
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10
src/compiler/emitter.ts
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@ -817,8 +817,11 @@ module ts {
return;
}
var templateNeedsParens = isExpression(node.parent) &&
comparePrecedenceToBinaryPlus(node.parent) !== Comparison.LessThan;
Debug.assert(node.parent.kind !== SyntaxKind.TaggedTemplateExpression);
var templateNeedsParens = isExpression(node.parent)
&& node.parent.kind !== SyntaxKind.ParenExpression
&& comparePrecedenceToBinaryPlus(node.parent) !== Comparison.LessThan;
if (templateNeedsParens) {
write("(");
@ -836,7 +839,8 @@ module ts {
// ("abc" + 1) << (2 + "")
// rather than
// "abc" + (1 << 2) + ""
var needsParens = comparePrecedenceToBinaryPlus(templateSpan.expression) !== Comparison.GreaterThan;
var needsParens = templateSpan.expression.kind !== SyntaxKind.ParenExpression
&& comparePrecedenceToBinaryPlus(templateSpan.expression) !== Comparison.GreaterThan;
write(" + ");

2
tests/baselines/reference/templateStringInParentheses.js
View File

@ -2,4 +2,4 @@
var x = (`abc${0}abc`);
//// [templateStringInParentheses.js]
var x = (("abc" + 0 + "abc"));
var x = ("abc" + 0 + "abc");