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/*
* MacRuby Objective-C API.
*
* This file is covered by the Ruby license. See COPYING for more details.
*
* Copyright (C) 2012, The MacRuby Team. All rights reserved.
* Copyright (C) 2009-2011, Apple Inc. All rights reserved.
*/

#import <Foundation/Foundation.h>

#include "macruby_internal.h"
#include "ruby/node.h"
#include "ruby/objc.h"
#include "vm.h"
#include "objc.h"

@implementation MacRuby

extern bool ruby_initialized;

+ (MacRuby *)sharedRuntime
{
    static MacRuby *runtime = nil;
    if (runtime == nil) {
runtime = [[MacRuby alloc] init];
if (!ruby_initialized) {
int argc = 0;
char **argv = NULL;
ruby_sysinit(&argc, &argv);
ruby_init();
ruby_init_loadpath();
rb_vm_init_compiler();
rb_vm_init_jit();
rb_objc_fix_relocatable_load_path();
rb_objc_load_loaded_frameworks_bridgesupport();
}
    }
    return runtime;
}

- (id)evaluateString:(NSString *)expression
{
    return RB2OC(rb_eval_string([(NSString *)expression UTF8String]));
}

- (id)evaluateFileAtPath:(NSString *)path
{
    return RB2OC(rb_f_require(Qnil, (VALUE)path));
}

- (id)evaluateFileAtURL:(NSURL *)URL
{
    if (![URL isFileURL]) {
[NSException raise:NSInvalidArgumentException format:
@"given URL is not a file URL"];
    }
    return [self evaluateFileAtPath:[URL relativePath]];
}

- (void)loadBridgeSupportFileAtPath:(NSString *)path
{
#if MACRUBY_STATIC
    printf("loadBridgeSupportFileAtPath: not supported in MacRuby static\n");
    abort();
#else
    rb_vm_load_bridge_support([path fileSystemRepresentation], NULL, 0);
#endif
}

- (void)loadBridgeSupportFileAtURL:(NSURL *)URL
{
    if (![URL isFileURL]) {
[NSException raise:NSInvalidArgumentException format:
@"given URL is not a file URL"];
    }
    [self loadBridgeSupportFileAtPath:[URL relativePath]];
}

@end

@implementation NSObject (MacRubyAdditions)

- (id)performRubySelector:(SEL)sel
{
    return [self performRubySelector:sel withArguments:NULL];
}

- (id)performRubySelector:(SEL)sel withArguments:(id *)argv count:(int)argc
{
    VALUE *rargv = NULL;
    if (argc > 0) {
rargv = (VALUE *)xmalloc(sizeof(VALUE) * argc);
for (int i = 0; i < argc; i++) {
rargv[i] = OC2RB(argv[i]);
}
    }

    return RB2OC(rb_vm_call(OC2RB(self), sel, argc, rargv));
}

- (id)performRubySelector:(SEL)sel withArguments:firstArg, ...
{
    va_list args;
    int argc;
    id *argv;

    if (firstArg != nil) {
argc = 1;
va_start(args, firstArg);
while (va_arg(args, id) != NULL) {
argc++;
}
va_end(args);
argv = xmalloc(sizeof(id) * argc);
va_start(args, firstArg);
argv[0] = firstArg;
for (int i = 1; i < argc; i++) {
argv[i] = va_arg(args, id);
}
va_end(args);
    }
    else {
argc = 0;
argv = NULL;
    }

    return [self performRubySelector:sel withArguments:argv count:argc];
}

@end
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