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Guard against missing elements in array patterns when checking function parameters.

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This commit is contained in:
Max Schaefer 2014-10-09 13:52:08 +01:00 committed by Marijn Haverbeke
parent bdee9e8195
commit e9c7209f8b
2 changed files with 6 additions and 2 deletions
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6
acorn.js
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@ -1391,8 +1391,10 @@
break; break;
case "ArrayPattern": case "ArrayPattern":
for (var i = 0; i < param.elements.length; i++) for (var i = 0; i < param.elements.length; i++) {
checkFunctionParam(param.elements[i], nameHash); var elem = param.elements[i];
if (elem) checkFunctionParam(elem, nameHash);
}
break; break;
} }
} }

2
test/tests-harmony.js
View File

@ -15389,3 +15389,5 @@ test('function normal(x, y = 10) {}', {
expression: false expression: false
}] }]
}, {ecmaVersion: 6}); }, {ecmaVersion: 6});
test("'use strict'; function f([x,,z]) {}", {}, {ecmaVersion: 6});