factor/native/macosx/run.m

49 lines
1.0 KiB
Objective-C

/* Cocoa exception handling and default image path for Mac OS X */
#include "../factor.h"
#import "Foundation/NSAutoreleasePool.h"
#import "Foundation/NSBundle.h"
#import "Foundation/NSException.h"
#import "Foundation/NSString.h"
/* This code is convoluted because Cocoa places restrictions on longjmp and
exception handling. In particular, a longjmp can never cross an NS_DURING,
NS_HANDLER or NS_ENDHANDLER. */
void platform_run()
{
CELL error = F;
for(;;)
{
NS_DURING
SETJMP(stack_chain->toplevel);
handle_error();
if(error != F)
{
CELL e = error;
error = F;
general_error(ERROR_OBJECTIVE_C,e,true);
}
run();
NS_VOIDRETURN;
NS_HANDLER
error = tag_object(make_alien(F,(CELL)localException));
NS_ENDHANDLER
}
}
void early_init(void)
{
[[NSAutoreleasePool alloc] init];
}
const char *default_image_path(void)
{
NSBundle *bundle = [NSBundle mainBundle];
NSString *path = [bundle bundlePath];
NSString *image = [path stringByAppendingString:@"/Contents/Resources/factor.image"];
return [image cString];
}