617949 - Different TypeError for instanceOfWithKnownTypes.js in methodjit

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect)

Description

[Jan de Mooij [:jandem]]

Test case:
---
function f() {
    var o = {}, p = {};
    return o instanceof p;
}
f();
---
./js:
test1.js:3: TypeError: invalid 'instanceof' operand p

./js -m:
test1.js:3: TypeError: 'prototype' property of p is not an object

I don't know how important this is. For testing it'd be nice to have the interpreter and JITs generate the same error messages. And the second message is a bit obscure.

Comment 1

[Jesse Ruderman]

WFM at least as far back as mozilla-central rev d796fb18f555.

I get "TypeError: invalid 'instanceof' operand p"