118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
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145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
+
-
+
-
-
+
-
+
-
-
-
-
+
-
-
+
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
|
if (class_conformsToProtocol(c, protocol))
return YES;
return NO;
#endif
}
+ (IMP)setImplementation: (IMP)newimp
+ (IMP)replaceMethod: (SEL)selector
withMethodFromClass: (Class)class;
IMP oldimp, newimp;
IMP oldimp;
if (method == NULL)
@throw [OFInvalidArgumentException newWithClass: self
andSelector: _cmd];
oldimp = method_get_imp(method);
if ((oldimp = method_get_imp(method)) == (IMP)0 || newimp == (IMP)0)
newimp = method_get_imp(class_get_instance_method(class, selector));
if (oldimp == (IMP)0 || newimp == (IMP)0)
Method method = class_getInstanceMethod(self, selector);
Method method;
IMP imp = class_getMethodImplementation(class, selector);
if (method == NULL || imp == NULL)
if ((method = class_getInstanceMethod(self, selector)) == NULL)
@throw [OFInvalidArgumentException newWithClass: self
andSelector: _cmd];
return method_setImplementation(method, imp);
return method_setImplementation(method, newimp);
#endif
}
+ (IMP)replaceMethod: (SEL)selector
withMethodFromClass: (Class)class;
{
IMP newimp;
#ifdef __objc_INCLUDE_GNU
newimp = method_get_imp(class_get_instance_method(class, selector));
#else
newimp = class_getMethodImplementation(class, selector);
#endif
return [self setImplementation: newimp
forMethod: selector];
}
- init
{
return self;
}
|