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#include "runtime-compatibility.h"
#include <Foundation/NSException.h>
#include <Foundation/NSNull.h>
#define DEFINE_GMP_OPERATION(SIGNATURE, TYPE, GMPOP, OBJTYPE, CONSTRUCTOR) \
-(OBJTYPE *) SIGNATURE \
{ \
TYPE##_t mpval; \
OBJTYPE *result; \
\
TYPE##_init (mpval); \
GMPOP; \
result = [OBJTYPE CONSTRUCTOR mpval]; \
TYPE##_clear (mpval); \
\
return result; \
}
static id nullify (id value) __attribute__ ((pure, unused));
static id denullify (id value) __attribute__ ((pure, unused));
static id stringify (id value) __attribute__ ((pure, unused));
static id nullify (id value)
{
if (value)
return value;
else
return [NSNull null];
}
static id denullify (id value)
{
if (value == [NSNull null])
return nil;
else
return value;
}
static id stringify (id thing)
{
// FIXME: Some cases may be missing.
if (!thing)
return @"NIL";
if ([thing isKindOfClass:[NSString class]])
return thing;
else if ([thing isKindOfClass:[MLKSymbol class]])
return [thing name];
[NSException raise:@"MLKTypeError" format:@"Can't coerce %@ to a string.",
[thing descriptionForLisp]];
return nil;
}
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