public static Object convertArg(Context cx, Scriptable scope, Object arg, int typeTag) {
switch (typeTag) {
case JAVA_STRING_TYPE:
if (arg instanceof String) {
return arg;
}
return ScriptRuntime.toString(arg);
case JAVA_INT_TYPE:
if (arg instanceof Integer) {
return arg;
}
return new Integer(ScriptRuntime.toInt32(arg));
case JAVA_BOOLEAN_TYPE:
if (arg instanceof Boolean) {
return arg;
}
return ScriptRuntime.toBoolean(arg) ? Boolean.TRUE : Boolean.FALSE;
case JAVA_DOUBLE_TYPE:
if (arg instanceof Double) {
return arg;
}
return new Double(ScriptRuntime.toNumber(arg));
case JAVA_SCRIPTABLE_TYPE:
if (arg instanceof Scriptable) {
return arg;
}
return ScriptRuntime.toObject(cx, scope, arg);
case JAVA_OBJECT_TYPE:
return arg;
default:
throw new IllegalArgumentException();
}
}
