# This file is part of NIT ( http://www.nitlanguage.org ). # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # Test callback to an extern constructor from extern code import core::text extern class IntPtr `{ int* `} new (v: Int) `{ int *r = malloc(sizeof(int)); *r = v; return r; `} redef fun to_s import CString, CString.to_s `{ int len = snprintf(NULL, 0, "%d", *self) + 1; char *c = new_CString(len); sprintf(c, "%d", *self); return CString_to_s(c); `} end fun foo: IntPtr import IntPtr `{ int *c = new_IntPtr(5678); return c; `} var a = new IntPtr(1234) a.to_s.output "\n".output var b = foo b.to_s.output "\n".output