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// Constant folding doesn't affect strict delete either.
// In particular, it doesn't affect whether |delete x| is a strict error.
load(libdir + "asserts.js");
(function (x) {
"use strict";
// These senseless delete-expressions are legal even in strict mode.
// Per ES5.1 11.4.1 step 2, each one does nothing and returns true.
assertEq(delete (1 ? x : x), true);
assertEq(delete (0 || x), true);
assertEq(delete (1 && x), true);
// Plain `delete x` is a SyntaxError though.
assertThrowsInstanceOf(() => eval('delete x'), SyntaxError);
assertThrowsInstanceOf(() => Function('"use strict"; delete x'), SyntaxError);
}());