/* * Copyright (c) 2008, 2009, 2010, 2011, 2012 * Jonathan Schleifer <js@webkeks.org> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "config.h" #include <stdio.h> #include <stdlib.h> #import "runtime.h" #import "runtime-private.h" #import "macros.h" static IMP not_found_handler(id, SEL); IMP (*objc_forward_handler)(id, SEL) = not_found_handler; static IMP not_found_handler(id obj, SEL sel) { ERROR("Selector %s is not implemented for class %s!", sel_getName(sel), obj->isa->name); } BOOL class_respondsToSelector(Class cls, SEL sel) { if (cls == Nil) return NO; return (objc_sparsearray_get(cls->dtable, sel->uid) != NULL ? YES : NO); } #if !defined(__ELF__) || (!defined(OF_X86_ASM) && !defined(OF_AMD64_ASM)) static id nil_method(id self, SEL _cmd) { return nil; } IMP objc_msg_lookup(id obj, SEL sel) { IMP imp; if (obj == nil) return (IMP)nil_method; if ((imp = objc_sparsearray_get(obj->isa->dtable, sel->uid)) == NULL) return objc_forward_handler(obj, sel); return imp; } IMP objc_msg_lookup_super(struct objc_abi_super *super, SEL sel) { IMP imp; if (super->self == nil) return (IMP)nil_method; imp = objc_sparsearray_get(super->class->dtable, sel->uid); if (imp == NULL) return objc_forward_handler(super->self, sel); return imp; } #endif