src/third_party/mozjs-45/js/src/tests/js1_8_5/reflect-parse/builderExceptions.js

// |reftest| skip-if(!xulRuntime.shell)
// Ensure that exceptions thrown by builder methods propagate.
var thrown = false;
try {
    Reflect.parse("42", { builder: { program: function() { throw "expected" } } });
} catch (e if e === "expected") {
    thrown = true;
}
if (!thrown)
    throw new Error("builder exception not propagated");

if (typeof reportCompare === 'function')
    reportCompare(true, true);