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48bdbc7745
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.
40 lines
842 B
C
40 lines
842 B
C
#include <string.h>
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#include "returns.h"
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static void implicitNull(WrenVM* vm)
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{
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// Do nothing.
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}
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static void returnInt(WrenVM* vm)
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{
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wrenReturnDouble(vm, 123456);
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}
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static void returnFloat(WrenVM* vm)
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{
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wrenReturnDouble(vm, 123.456);
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}
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static void returnTrue(WrenVM* vm)
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{
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wrenReturnBool(vm, true);
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}
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static void returnFalse(WrenVM* vm)
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{
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wrenReturnBool(vm, false);
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}
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WrenForeignMethodFn returnsBindMethod(const char* signature)
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{
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if (strcmp(signature, "static Api.implicitNull") == 0) return implicitNull;
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if (strcmp(signature, "static Api.returnInt") == 0) return returnInt;
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if (strcmp(signature, "static Api.returnFloat") == 0) return returnFloat;
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if (strcmp(signature, "static Api.returnTrue") == 0) return returnTrue;
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if (strcmp(signature, "static Api.returnFalse") == 0) return returnFalse;
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return NULL;
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}
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