1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296 | /**************************************************************************/
/* callable_method_pointer.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef CALLABLE_METHOD_POINTER_H
#define CALLABLE_METHOD_POINTER_H
#include "core/object/object.h"
#include "core/variant/binder_common.h"
#include "core/variant/callable.h"
#include <type_traits>
class CallableCustomMethodPointerBase : public CallableCustom {<--- The class 'CallableCustomMethodPointerBase' does not declare a constructor although it has private member variables which likely require initialization. [+]The class 'CallableCustomMethodPointerBase' does not declare a constructor although it has private member variables. Member variables of builtin types are left uninitialized when the class is instantiated. That may cause bugs or undefined behavior.
uint32_t *comp_ptr = nullptr;
uint32_t comp_size;
uint32_t h;
#ifdef DEBUG_METHODS_ENABLED
const char *text = "";
#endif
static bool compare_equal(const CallableCustom *p_a, const CallableCustom *p_b);
static bool compare_less(const CallableCustom *p_a, const CallableCustom *p_b);
protected:
void _setup(uint32_t *p_base_ptr, uint32_t p_ptr_size);
public:
virtual StringName get_method() const {
#ifdef DEBUG_METHODS_ENABLED
return StringName(text);
#else
return StringName();
#endif
}
#ifdef DEBUG_METHODS_ENABLED
void set_text(const char *p_text) {
text = p_text;
}
virtual String get_as_text() const {
return text;
}
#else
virtual String get_as_text() const {
return String();
}
#endif
virtual CompareEqualFunc get_compare_equal_func() const;
virtual CompareLessFunc get_compare_less_func() const;
virtual uint32_t hash() const;
};
template <typename T, typename R, typename... P>
class CallableCustomMethodPointer : public CallableCustomMethodPointerBase {
struct Data {
T *instance;
uint64_t object_id;
R(T::*method)
(P...);
} data;
public:
virtual ObjectID get_object() const {
if (ObjectDB::get_instance(ObjectID(data.object_id)) == nullptr) {
return ObjectID();
}
return data.instance->get_instance_id();
}
virtual int get_argument_count(bool &r_is_valid) const {
r_is_valid = true;
return sizeof...(P);
}
virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const {
ERR_FAIL_NULL_MSG(ObjectDB::get_instance(ObjectID(data.object_id)), "Invalid Object id '" + uitos(data.object_id) + "', can't call method.");
if constexpr (std::is_same<R, void>::value) {
call_with_variant_args(data.instance, data.method, p_arguments, p_argcount, r_call_error);
} else {
call_with_variant_args_ret(data.instance, data.method, p_arguments, p_argcount, r_return_value, r_call_error);
}
}
CallableCustomMethodPointer(T *p_instance, R (T::*p_method)(P...)) {<--- Member variable 'CallableCustomMethodPointerBase::comp_size' is not initialized in the constructor. Maybe it should be initialized directly in the class CallableCustomMethodPointerBase?<--- Member variable 'CallableCustomMethodPointerBase::h' is not initialized in the constructor. Maybe it should be initialized directly in the class CallableCustomMethodPointerBase?
memset(&data, 0, sizeof(Data)); // Clear beforehand, may have padding bytes.
data.instance = p_instance;
data.object_id = p_instance->get_instance_id();
data.method = p_method;
_setup((uint32_t *)&data, sizeof(Data));
}
};
template <typename T, typename... P>
Callable create_custom_callable_function_pointer(T *p_instance,
#ifdef DEBUG_METHODS_ENABLED
const char *p_func_text,
#endif
void (T::*p_method)(P...)) {
typedef CallableCustomMethodPointer<T, void, P...> CCMP; // Messes with memnew otherwise.
CCMP *ccmp = memnew(CCMP(p_instance, p_method));
#ifdef DEBUG_METHODS_ENABLED
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
#endif
return Callable(ccmp);
}
template <typename T, typename R, typename... P>
Callable create_custom_callable_function_pointer(T *p_instance,
#ifdef DEBUG_METHODS_ENABLED
const char *p_func_text,
#endif
R (T::*p_method)(P...)) {
typedef CallableCustomMethodPointer<T, R, P...> CCMP; // Messes with memnew otherwise.
CCMP *ccmp = memnew(CCMP(p_instance, p_method));
#ifdef DEBUG_METHODS_ENABLED
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
#endif
return Callable(ccmp);
}
// CONST VERSION
template <typename T, typename R, typename... P>
class CallableCustomMethodPointerC : public CallableCustomMethodPointerBase {
struct Data {
T *instance;
uint64_t object_id;
R(T::*method)
(P...) const;
} data;
public:
virtual ObjectID get_object() const override {
if (ObjectDB::get_instance(ObjectID(data.object_id)) == nullptr) {
return ObjectID();
}
return data.instance->get_instance_id();
}
virtual int get_argument_count(bool &r_is_valid) const override {
r_is_valid = true;
return sizeof...(P);
}
virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const override {
ERR_FAIL_NULL_MSG(ObjectDB::get_instance(ObjectID(data.object_id)), "Invalid Object id '" + uitos(data.object_id) + "', can't call method.");
if constexpr (std::is_same<R, void>::value) {
call_with_variant_argsc(data.instance, data.method, p_arguments, p_argcount, r_call_error);
} else {
call_with_variant_args_retc(data.instance, data.method, p_arguments, p_argcount, r_return_value, r_call_error);
}
}
CallableCustomMethodPointerC(T *p_instance, R (T::*p_method)(P...) const) {<--- Member variable 'CallableCustomMethodPointerBase::comp_size' is not initialized in the constructor. Maybe it should be initialized directly in the class CallableCustomMethodPointerBase?<--- Member variable 'CallableCustomMethodPointerBase::h' is not initialized in the constructor. Maybe it should be initialized directly in the class CallableCustomMethodPointerBase?
memset(&data, 0, sizeof(Data)); // Clear beforehand, may have padding bytes.
data.instance = p_instance;
data.object_id = p_instance->get_instance_id();
data.method = p_method;
_setup((uint32_t *)&data, sizeof(Data));
}
};
template <typename T, typename... P>
Callable create_custom_callable_function_pointer(T *p_instance,
#ifdef DEBUG_METHODS_ENABLED
const char *p_func_text,
#endif
void (T::*p_method)(P...) const) {
typedef CallableCustomMethodPointerC<T, void, P...> CCMP; // Messes with memnew otherwise.
CCMP *ccmp = memnew(CCMP(p_instance, p_method));
#ifdef DEBUG_METHODS_ENABLED
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
#endif
return Callable(ccmp);
}
template <typename T, typename R, typename... P>
Callable create_custom_callable_function_pointer(T *p_instance,
#ifdef DEBUG_METHODS_ENABLED
const char *p_func_text,
#endif
R (T::*p_method)(P...) const) {
typedef CallableCustomMethodPointerC<T, R, P...> CCMP; // Messes with memnew otherwise.
CCMP *ccmp = memnew(CCMP(p_instance, p_method));
#ifdef DEBUG_METHODS_ENABLED
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
#endif
return Callable(ccmp);
}
#ifdef DEBUG_METHODS_ENABLED
#define callable_mp(I, M) create_custom_callable_function_pointer(I, #M, M)
#else
#define callable_mp(I, M) create_custom_callable_function_pointer(I, M)
#endif
// STATIC VERSIONS
template <typename R, typename... P>
class CallableCustomStaticMethodPointer : public CallableCustomMethodPointerBase {
struct Data {
R(*method)
(P...);
} data;
public:
virtual bool is_valid() const override {
return true;
}
virtual ObjectID get_object() const override {
return ObjectID();
}
virtual int get_argument_count(bool &r_is_valid) const override {
r_is_valid = true;
return sizeof...(P);
}
virtual void call(const Variant **p_arguments, int p_argcount, Variant &r_return_value, Callable::CallError &r_call_error) const override {
if constexpr (std::is_same<R, void>::value) {
call_with_variant_args_static(data.method, p_arguments, p_argcount, r_call_error);
} else {
call_with_variant_args_static_ret(data.method, p_arguments, p_argcount, r_return_value, r_call_error);
}
}
CallableCustomStaticMethodPointer(R (*p_method)(P...)) {<--- Member variable 'CallableCustomMethodPointerBase::comp_size' is not initialized in the constructor. Maybe it should be initialized directly in the class CallableCustomMethodPointerBase?<--- Member variable 'CallableCustomMethodPointerBase::h' is not initialized in the constructor. Maybe it should be initialized directly in the class CallableCustomMethodPointerBase?<--- Class 'CallableCustomStaticMethodPointer' has a constructor with 1 argument that is not explicit. [+]Class 'CallableCustomStaticMethodPointer' has a constructor with 1 argument that is not explicit. Such constructors should in general be explicit for type safety reasons. Using the explicit keyword in the constructor means some mistakes when using the class can be avoided.
memset(&data, 0, sizeof(Data)); // Clear beforehand, may have padding bytes.
data.method = p_method;
_setup((uint32_t *)&data, sizeof(Data));
}
};
template <typename... P>
Callable create_custom_callable_static_function_pointer(
#ifdef DEBUG_METHODS_ENABLED
const char *p_func_text,
#endif
void (*p_method)(P...)) {
typedef CallableCustomStaticMethodPointer<void, P...> CCMP; // Messes with memnew otherwise.
CCMP *ccmp = memnew(CCMP(p_method));
#ifdef DEBUG_METHODS_ENABLED
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
#endif
return Callable(ccmp);
}
template <typename R, typename... P>
Callable create_custom_callable_static_function_pointer(
#ifdef DEBUG_METHODS_ENABLED
const char *p_func_text,
#endif
R (*p_method)(P...)) {
typedef CallableCustomStaticMethodPointer<R, P...> CCMP; // Messes with memnew otherwise.
CCMP *ccmp = memnew(CCMP(p_method));
#ifdef DEBUG_METHODS_ENABLED
ccmp->set_text(p_func_text + 1); // Try to get rid of the ampersand.
#endif
return Callable(ccmp);
}
#ifdef DEBUG_METHODS_ENABLED
#define callable_mp_static(M) create_custom_callable_static_function_pointer(#M, M)
#else
#define callable_mp_static(M) create_custom_callable_static_function_pointer(M)
#endif
#endif // CALLABLE_METHOD_POINTER_H
|