Status: New
Owner: ----
New issue 3140 by [email protected]: Identifier reference
resolution in compound assignment and increment/decrement operator incorrect
http://code.google.com/p/v8/issues/detail?id=3140
See https://bugs.ecmascript.org/show_bug.cgi?id=1751,
https://mail.mozilla.org/pipermail/es-discuss/2014-January/035642.html .
11.13.2 Compound Assignment does a single reference resolution for its LHS.
This also applies to the increment and decrement operators
(11.3.1, 11.3.2, 11.4.4, 11.4.5).
v8 bleeding edge, rev 19151
Test case 1:
---
var o1, o2;
with (o1 = {set x(v) { print("wrong") }}) {
with (o2 = {get x() { delete this.x; return 2 }}) {
x += 1;
}
}
o2.x
---
Expected: "wrong" is not printed and `o2.x` is set to 3
Actual: "wrong" is printed
Test case 2:
---
var x = 1;
(function() {
x += eval("var x = 2; x");
return x;
})();
---
Expected: function returns 2 and global x is set to 3
Actual: function returns 3
Test case 3:
---
(function(global) {
"use strict";
Object.defineProperty(global, "x", {configurable:true, get: function(){
delete this.x; return 2 }});
x += 1;
})(this);
---
Expected: Create a global variable x with value 3, no strict-mode
ReferenceError is thrown
Actual: ReferenceError is thrown
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