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Merge pull request #736 from Microsoft/unary_operators_strict_mode

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use operator token when checking unary expressions in strict mode
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Vladimir Matveev
2014-09-24 10:56:10 -07:00
parent dc9c3e168b ef6a87cdfb
commit 9f23f74fc3
9 changed files with 94 additions and 18 deletions
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4
src/compiler/parser.ts
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@@ -2174,10 +2174,10 @@ module ts {
// The identifier eval or arguments may not appear as the LeftHandSideExpression of an
// Assignment operator(11.13) or of a PostfixExpression(11.3) or as the UnaryExpression
// operated upon by a Prefix Increment(11.4.4) or a Prefix Decrement(11.4.5) operator
if ((token === SyntaxKind.PlusPlusToken || token === SyntaxKind.MinusMinusToken) && isEvalOrArgumentsIdentifier(operand)) {
if ((operator === SyntaxKind.PlusPlusToken || operator === SyntaxKind.MinusMinusToken) && isEvalOrArgumentsIdentifier(operand)) {
reportInvalidUseInStrictMode(<Identifier>operand);
}
else if (token === SyntaxKind.DeleteKeyword && operand.kind === SyntaxKind.Identifier) {
else if (operator === SyntaxKind.DeleteKeyword && operand.kind === SyntaxKind.Identifier) {
// When a delete operator occurs within strict mode code, a SyntaxError is thrown if its
// UnaryExpression is a direct reference to a variable, function argument, or function name
grammarErrorOnNode(operand, Diagnostics.delete_cannot_be_called_on_an_identifier_in_strict_mode);