Status: New
Owner: ----
New issue 1856 by [email protected]: "Uncaught SyntaxError:
Unexpected token if" incorrectly thrown
http://code.google.com/p/v8/issues/detail?id=1856
The v8 VM (on Chrome 15.0.874.121 m) is having some weird parsing issues
related to the following function (originally generated by the ugify
compactor):
var someFn = function mP(a) {
var b = 0;
var k = 0;
var j = 0;
if (b === 3 || b === 4)
do {
k = 3;
} while (false);
else if (b === 2) {
return j;
}
return a;
};
When we run this function with node.js (v0.6.5) the code executes as
expected. However, if we now add some more completely unrelated lines at
the bottom of the function:
var someFn = function mP(a) {
var b = 0;
var k = 0;
var j = 0;
if (b === 3 || b === 4)
do {
k = 3;
} while (false);
else if (b === 2) {
return j;
}
var vr1 = this.LongVariableName1;
var vr2 = this.LongVariableName2;
var vr3 = this.LongVariableName3;
var vr4 = this.LongVariableName4;
var vr5 = this.LongVariableName5;
var vr6 = this.LongVariableName6;
var vr7 = this.LongVariableName7;
var vr8 = this.LongVariableName8;
var vr9 = this.LongVariableName9;
var vr10 = this.LongVariableName10;
var vr11 = this.LongVariableName11;
var vr12 = this.LongVariableName12;
return a;
};
we get the following error:
v8-test1.js:36
else if (b === 2) {
^^^^
node.js:201
throw e; // process.nextTick error, or 'error' event on first tick
^
SyntaxError: Unexpected token else
at Module._compile (module.js:427:25)
at Object..js (module.js:450:10)
at Module.load (module.js:351:31)
at Function._load (module.js:310:12)
at Array.0 (module.js:470:10)
at EventEmitter._tickCallback (node.js:192:40)
And in chrome:
...
else if (b === 2) {
v8-test1.html:45 Uncaught SyntaxError: Unexpected token if
return j;
}
...
I have attached files for Chrome and node.js where you should see the error
(look in the console) in v8-test1 and no error in v8-test2.
Note that none of the other major browsers (tested in FF8, Safari, IE) have
this issue.
Attachments:
v8-test1.html 1.4 KB
v8-test2.html 1002 bytes
v8-test1.js 1.1 KB
v8-test2.js 679 bytes
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