var StringMap = function() {};
a = new StringMap();
a.foo = "bar";
b = new StringMap();
b.foo = "bar";
try {
compare(a, b);
alert( false, "bad comparison registered!?" );
} catch (e) {
alert( e instanceof TypeError, "bad comparison raised TypeError" );
}
alert( repr(a), "[object Object]", "default repr for StringMap" );
var isStringMap = function () {
for (var i = 0; i < arguments.length; i++) {
if (!(arguments[i] instanceof StringMap)) {
return false;
}
}
return true;
};
registerRepr("stringMap",
isStringMap,
function (obj) {
return "StringMap(" + repr(items(obj)) + ")";
}
);
alert( repr(a), 'StringMap([["foo", "bar"]])', "repr worked" );