objc/objc_method.c

   1 #import <objc/runtime.h>
   2
   3 IMP method_getImplementation(Method method) {
   4     return method->method_imp;
   5 }
   6
   7 SEL method_getName(Method method) {
   8     return method->method_name;
   9 }
  10
  11 unsigned method_getNumberOfArguments(Method method) {
  12     unsigned result = 2;
  13     const char *name = sel_getName(method->method_name);
  14
  15     for(; *name != '\0'; name++)
  16         if(*name == ':')
  17             result++;
  18
  19     return result;
  20 }
  21
  22 void method_getReturnType(Method method, char *type, size_t typeCapacity) {
  23     // UNIMPLEMENTED
  24 }
  25
  26 void method_getArgumentType(Method method, unsigned int index, char *type, size_t typeCapacity) {
  27     // UNIMPLEMENTED
  28 }
  29
  30 char *method_copyReturnType(Method method) {
  31     // UNIMPLEMENTED
  32     return NULL;
  33 }
  34
  35 char *method_copyArgumentType(Method method, unsigned int index) {
  36     // UNIMPLEMENTED
  37     return NULL;
  38 }
  39
  40 const char *method_getTypeEncoding(Method method) {
  41     return (method == NULL) ? NULL : method->method_types;
  42 }
  43
  44 IMP method_setImplementation(Method method, IMP imp) {
  45     IMP result = method->method_imp;
  46     method->method_imp = imp;
  47     return result;
  48 }
  49
  50 void method_exchangeImplementations(Method method, Method other) {
  51     // FIXME: needs to be atomic
  52     IMP tmp = method->method_imp;
  53
  54     method->method_imp = other->method_imp;
  55     other->method_imp = tmp;
  56 }