Bug 351348

Description Klaus Reimer 2011-07-06 11:50:50 EDT

Build Identifier: I20110613-1736

The following small code generates a "variable location is never read" warning which is wrong because the variable IS read.

    function test()
    {
        var location;
        
        location = { foo: 42 };
        return location.foo;
    }

Interesting facts:

  1. It does NOT happen when returning location["foo"] instead of location.foo.

  2. It does NOT happen when using a different variable name. It is reproducible with "location" and "window" and "document" (and may be others) but not with variable names which doesn't collide with pre-defined top-level variables. So maybe this warning collides with the "hides another field or variable" warning? But I couldn't reproduce it with a custom variable name which is also defined in the global scope.


Reproducible: Always