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Only accept for-of loops in ECMA6 mode.

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This commit is contained in:
Max Schaefer 2014-09-29 10:16:22 +01:00 committed by Marijn Haverbeke
parent daedc6fcb3
commit 015a0e90bc
2 changed files with 6 additions and 2 deletions
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4
acorn.js
View File

@ -1584,13 +1584,13 @@
next();
parseVar(init, true, varKind);
finishNode(init, "VariableDeclaration");
if ((tokType === _in || (tokType === _name && tokVal === "of")) && init.declarations.length === 1 &&
if ((tokType === _in || (options.ecmaVersion >= 6 && tokType === _name && tokVal === "of")) && init.declarations.length === 1 &&
!(isLet && init.declarations[0].init))
return parseForIn(node, init);
return parseFor(node, init);
}
var init = parseExpression(false, true);
if (tokType === _in || (tokType === _name && tokVal === "of")) {
if (tokType === _in || (options.ecmaVersion >= 6 && tokType === _name && tokVal === "of")) {
checkLVal(init);
return parseForIn(node, init);
}

4
test/tests.js
View File

@ -28594,6 +28594,10 @@ testFail("const a;", "Unexpected token (1:7)", {ecmaVersion: 6});
testFail("for(const x = 0;;);", "Unexpected token (1:4)", {ecmaVersion: 6});
testFail("for(x of a);", "Unexpected token (1:6)");
testFail("for(var x of a);", "Unexpected token (1:10)");
// Assertion Tests
(function() {
var actualComments = [],