Object.prototype.toString.call(undefined)

[Sebastián Gurin]

v7 -e "Object.prototype.toString.call(undefined)"
Exec error [Object.prototype.toString.call(undefined)]: "cannot read property 'constructor' of undefined"

This shouldn't fail or at least it works in all other engines I know including v8, rhino, jjs and browsers. Library that internally use this code is http://momentjs.com/

BTW: debugging the cause of this error was a pain. Do you know some switch in v7 to print the line number where the exception occurs ?

BTW2 I'm playing with browserify and libraries like underscore, momentjs, lodash etc and in general v7 works fine, the only exception so far was this error.

Thanks!

[Marko Mikulicic]

error numbers reporting is enabled in master by default

[Marko Mikulicic]

In general error reporting has been greatly improved:

mkm@marko $ cat >/tmp/foo.js
var foo = {};
foo.bar();
mkm@marko $ ./v7 /tmp/foo.js
Exec error [/tmp/foo.js]: "foo.bar is not a function"
    at /tmp/foo.js:2
undefined

[Sebastián Gurin]

Thank you very much! is working fine now. BTW now momentjs is working but with a little workaround, but this time is their fault : moment/moment#3185 - I'm doing this Date.prototype.getYear = Date.prototype.getFullYear; maybe you want to include that but is not an issue!
Thank you again, good project, keep it up!