public void find_out_my_type() throws PlcException {
if (type != null && !(type.is_unknown())) return;
PhantomType l_type = null, r_type = null;
if (_l != null) l_type = _l.getType();
if (_r != null) r_type = _r.getType();
if (l_type != null && l_type.equals(r_type)) type = l_type;
else if (".internal.object".equals(l_type.get_class().getName()) && r_type != null)
type = r_type;
else if (".internal.object".equals(r_type.get_class().getName()) && l_type != null)
type = l_type;
else type = new PhTypeUnknown();
}
public boolean can_be_assigned_from(PhantomType src) {
if (this.equals(src)) return true;
if (!_is_known) return true; // variables of unknown type can eat anything
if (!src._is_known) return false; // i know my type and he doesnt
if (_is_void || src._is_void) return false;
if (_is_container != src._is_container) return false;
if (is_on_int_stack() && src.is_on_int_stack()) return true;
if (get_class() == null) return true;
return get_class().can_be_assigned_from(src.get_class());
}
public String toString() {
StringBuffer sb = new StringBuffer();
sb.append(type.toString());
sb.append(" ");
sb.append(name);
sb.append("( ");
boolean first = true;
for (Iterator<ArgDefinition> i = args_def.iterator(); i.hasNext(); ) {
if (!first) sb.append(", ");
first = false;
sb.append(i.next().toString());
}
sb.append(" )");
return sb.toString();
}