Files
wren/test/api/value.c
Bob Nystrom 48bdbc7745 First pass at implementing foreign classes.
Most of the pieces are there:

- You can declare a foreign class.
- It will call your C function to provide an allocator function.
- Whenever a foreign object is created, it calls the allocator.
- Foreign methods can access the foreign bytes of an object.
- Most of the runtime checking is in place for things like subclassing
  foreign classes.

There is still some loose ends to tie up:

- Finalizers are not called.
- Some of the error-handling could be better.
- The GC doesn't track how much memory a marked foreign object uses.
2015-08-15 12:07:53 -07:00

25 lines
460 B
C

#include <string.h>
#include "value.h"
static WrenValue* value;
static void setValue(WrenVM* vm)
{
value = wrenGetArgumentValue(vm, 1);
}
static void getValue(WrenVM* vm)
{
wrenReturnValue(vm, value);
wrenReleaseValue(vm, value);
}
WrenForeignMethodFn valueBindMethod(const char* signature)
{
if (strcmp(signature, "static Api.value=(_)") == 0) return setValue;
if (strcmp(signature, "static Api.value") == 0) return getValue;
return NULL;
}