mirror of https://github.com/tc39/test262.git
32 lines
707 B
JavaScript
Executable File
32 lines
707 B
JavaScript
Executable File
// Copyright (C) 2015 André Bargull. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
|
|
/*---
|
|
info: Operator --x evaluates its reference expression once.
|
|
description: >
|
|
The operand expression is evaluated exactly once. Operand expression is
|
|
MemberExpression: base[prop]. base is the undefined value.
|
|
---*/
|
|
|
|
function DummyError() { }
|
|
|
|
assert.throws(DummyError, function() {
|
|
var base = undefined;
|
|
var prop = function() {
|
|
throw new DummyError();
|
|
};
|
|
|
|
--base[prop()];
|
|
});
|
|
|
|
assert.throws(TypeError, function() {
|
|
var base = undefined;
|
|
var prop = {
|
|
toString: function() {
|
|
$ERROR("property key evaluated");
|
|
}
|
|
};
|
|
|
|
--base[prop];
|
|
});
|