-
-
Notifications
You must be signed in to change notification settings - Fork 14
/
interface99.h
296 lines (236 loc) · 14.8 KB
/
interface99.h
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
/*
MIT License
Copyright (c) 2021-2024 hirrolot
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.
*/
// The official repository: <https://github.com/hirrolot/interface99>.
#ifndef INTERFACE99_H
#define INTERFACE99_H
#include <metalang99.h>
#if !ML99_VERSION_COMPATIBLE(1, 13, 2)
#error Please, update Metalang99 to v1.13.2 or later.
#endif
#ifndef IFACE99_NO_ALIASES
#define interface(iface) interface99(iface)
#define impl(iface, implementer) impl99(iface, implementer)
#define implExtern(iface, implementer) implExtern99(iface, implementer)
#define declImpl(iface, implementer) declImpl99(iface, implementer)
#define declImplExtern(iface, implementer) declImplExtern99(iface, implementer)
#define vfunc(ret_ty, name, ...) vfunc99(ret_ty, name, __VA_ARGS__)
#define vfuncDefault(ret_ty, name, ...) vfuncDefault99(ret_ty, name, __VA_ARGS__)
#define VCALL(obj, ...) VCALL99(obj, __VA_ARGS__)
#define VCALL_OBJ(obj, ...) VCALL_OBJ99(obj, __VA_ARGS__)
#define VCALL_SUPER(obj, superiface, ...) VCALL_SUPER99(obj, superiface, __VA_ARGS__)
#define VCALL_SUPER_OBJ(obj, superiface, ...) VCALL_SUPER_OBJ99(obj, superiface, __VA_ARGS__)
#define DYN(implementer, iface, ...) DYN99(implementer, iface, __VA_ARGS__)
#define DYN_LIT(implementer, iface, ...) DYN_LIT99(implementer, iface, __VA_ARGS__)
#define VTABLE(implementer, iface) VTABLE99(implementer, iface)
#define VSelf VSelf99
#define VSELF(T) VSELF99(T)
#endif // IFACE99_NO_ALIASES
// Public stuff {
// Metalang99-compliant macros {
#define IFACE99_interface(iface) ML99_call(IFACE99_interface, iface)
#define IFACE99_impl(iface, implementer) ML99_call(IFACE99_impl, iface, implementer)
#define IFACE99_implExtern(iface, implementer) ML99_call(IFACE99_implExtern, iface, implementer)
#define interface99(iface) ML99_EVAL(IFACE99_interface_IMPL(iface))
#define impl99(iface, implementer) ML99_EVAL(IFACE99_impl_IMPL(iface, implementer))
#define implExtern99(iface, implementer) ML99_EVAL(IFACE99_implExtern_IMPL(iface, implementer))
// } (Metalang99-compliant macros)
#define vfunc99(ret_ty, name, ...) ML99_CHOICE(vfunc, ret_ty, name, __VA_ARGS__)
#define vfuncDefault99(ret_ty, name, ...) ML99_CHOICE(vfuncDefault, ret_ty, name, __VA_ARGS__)
#define DYN99(implementer, iface, ...) \
((iface){.self = (void *)(__VA_ARGS__), .vptr = &VTABLE99(implementer, iface)})
#define DYN_LIT99(implementer, iface, ...) DYN99(implementer, iface, &(implementer)__VA_ARGS__)
#define VTABLE99(implementer, iface) ML99_CAT4(implementer, _, iface, _impl)
#define VSelf99 void *restrict iface99_self
// clang-format off
#define VSELF99(T) T *restrict self = (T *restrict)(iface99_self)
// clang-format on
#define IFACE99_MAJOR 1
#define IFACE99_MINOR 0
#define IFACE99_PATCH 1
#define IFACE99_VERSION_COMPATIBLE(x, y, z) \
(IFACE99_MAJOR == (x) && \
((IFACE99_MINOR == (y) && IFACE99_PATCH >= (z)) || (IFACE99_MINOR > (y))))
#define IFACE99_VERSION_EQ(x, y, z) \
(IFACE99_MAJOR == (x) && IFACE99_MINOR == (y) && IFACE99_PATCH == (z))
// } (Public stuff)
// Interface generation {
#define IFACE99_interface_IMPL(iface) \
ML99_TERMS( \
v(typedef struct iface##VTable iface##VTable;), \
v(typedef struct iface iface;), \
ML99_semicoloned(ML99_struct(v(iface##VTable), IFACE99_PRIV_genVTableFields(iface))), \
v(struct iface { \
void *self; \
const iface##VTable *vptr; \
}))
/*
* // Only if <iface> is a marker interface without superinterfaces:
* char dummy;
*
* <func-ret-ty>0 (*<func-name>0)(<func-params>0);
* ...
* <func-ret-ty>N (*<func-name>N)(<func-params>N);
*
* const <requirement>0VTable *<requirement>;
* ...
* const <requirement>NVTable *<requirement>;
*/
#define IFACE99_PRIV_genVTableFields(iface) \
ML99_uncomma(ML99_QUOTE( \
IFACE99_PRIV_genDummy(iface), \
ML99_IF( \
IFACE99_PRIV_IS_MARKER_IFACE(iface), \
ML99_empty(), \
IFACE99_PRIV_genFuncPtrForEach(iface)), \
ML99_IF( \
IFACE99_PRIV_IS_SUB_IFACE(iface), \
IFACE99_PRIV_genRequirementForEach(iface), \
ML99_empty())))
#define IFACE99_PRIV_genDummy(iface) \
ML99_IF(IFACE99_PRIV_IS_EMPTY_VTABLE(iface), v(char dummy;), ML99_empty())
/*
* <func-ret-ty>0 (*<func-name>0)(<func-params>0);
* ...
* <func-ret-ty>N (*<func-name>N)(<func-params>N);
*/
#define IFACE99_PRIV_genFuncPtrForEach(iface) \
ML99_seqForEach(v(IFACE99_PRIV_genFuncPtr), v(iface##_IFACE))
#define IFACE99_PRIV_genFuncPtr_IMPL(_tag, ret_ty, name, ...) v(ret_ty (*name)(__VA_ARGS__);)
/*
* const <requirement>0VTable *<requirement>;
* ...
* const <requirement>NVTable *<requirement>;
*/
#define IFACE99_PRIV_genRequirementForEach(iface) \
ML99_tupleForEach(v(IFACE99_PRIV_genRequirement), v(iface##_EXTENDS))
#define IFACE99_PRIV_genRequirement_IMPL(requirement) v(const requirement##VTable *requirement;)
// } (Interface generation)
// Interface implementation generation {
#define IFACE99_impl_IMPL(iface, implementer) \
IFACE99_PRIV_implCommon(IFACE99_PRIV_STORAGE_CLASS_STATIC, iface, implementer)
#define IFACE99_implExtern_IMPL(iface, implementer) \
IFACE99_PRIV_implCommon(IFACE99_PRIV_STORAGE_CLASS_EXTERN, iface, implementer)
#define IFACE99_PRIV_STORAGE_CLASS_STATIC static
#define IFACE99_PRIV_STORAGE_CLASS_EXTERN /* If no storage-class specifier is provided, the \
default for objects is `extern` (file scope) or \
`auto` (block scope). */
#define IFACE99_PRIV_implCommon(storage_class, iface, implementer) \
ML99_assignInitializerList( \
v(storage_class const iface##VTable VTABLE99(implementer, iface)), \
IFACE99_PRIV_genImplInitList(iface, implementer))
/*
* // Only if <iface> is a marker interface without superinterfaces:
* .dummy = '\0',
*
* <func-name>0 = either <implementer>_<func-name>0 or <iface>_<func-name>0,
* ...
* <func-name>N = either <implementer>_<func-name>N or <iface>_<func-name>N,
*
* <requirement>0 = &VTABLE(<implementer>, <requirement>0),
* ...
* <requirement>N = &VTABLE(<implementer>, <requirement>N),
*/
#define IFACE99_PRIV_genImplInitList(iface, implementer) \
ML99_uncomma(ML99_QUOTE( \
IFACE99_PRIV_genDummyInit(iface), \
ML99_IF( \
IFACE99_PRIV_IS_MARKER_IFACE(iface), \
ML99_empty(), \
IFACE99_PRIV_genImplFuncNameForEach(iface, implementer)), \
ML99_IF( \
IFACE99_PRIV_IS_SUB_IFACE(iface), \
IFACE99_PRIV_genRequirementsImplForEach(iface, implementer), \
ML99_empty())))
#define IFACE99_PRIV_genDummyInit(iface) \
ML99_IF(IFACE99_PRIV_IS_EMPTY_VTABLE(iface), v(.dummy = '\0'), ML99_empty())
/*
* <func-name>0 = either <implementer>_<func-name>0 or <iface>_<func-name>0,
* ...
* <func-name>N = either <implementer>_<func-name>N or <iface>_<func-name>N,
*/
#define IFACE99_PRIV_genImplFuncNameForEach(iface, implementer) \
ML99_seqForEach( \
ML99_appl(v(IFACE99_PRIV_genImplFuncName), v(iface, implementer)), \
v(iface##_IFACE))
#define IFACE99_PRIV_genImplFuncName_IMPL(iface, implementer, tag, _ret_ty, name, ...) \
ML99_match(ML99_choice(v(tag), v(iface, implementer, name)), v(IFACE99_PRIV_genImpl_))
#define IFACE99_PRIV_genImpl_vfunc_IMPL(_iface, implementer, name) v(.name = implementer##_##name, )
#define IFACE99_PRIV_genImpl_vfuncDefault_IMPL(iface, implementer, name) \
ML99_IF( \
IFACE99_PRIV_IS_CUSTOM(implementer, name), \
IFACE99_PRIV_genImpl_vfunc_IMPL(~, implementer, name), \
v(.name = iface##_##name, ))
/*
* <requirement>0 = &VTABLE(<implementer>, <requirement>0),
* ...
* <requirement>N = &VTABLE(<implementer>, <requirement>N),
*/
#define IFACE99_PRIV_genRequirementsImplForEach(iface, implementer) \
ML99_tupleForEach( \
ML99_appl(v(IFACE99_PRIV_genRequirementImpl), v(implementer)), \
v(iface##_EXTENDS))
#define IFACE99_PRIV_genRequirementImpl_IMPL(implementer, requirement) \
v(.requirement = &VTABLE99(implementer, requirement), )
// } (Interface implementation generation)
// Implementation declaration {
#define declImpl99(iface, implementer) static IFACE99_PRIV_DECL_IMPL_COMMON(iface, implementer)
#define declImplExtern99(iface, implementer) \
extern IFACE99_PRIV_DECL_IMPL_COMMON(iface, implementer)
#define IFACE99_PRIV_DECL_IMPL_COMMON(iface, implementer) \
const ML99_CAT(iface, VTable) VTABLE99(implementer, iface)
// } (Implementation declaration)
// Virtual calls {
#define VCALL99(obj, ...) \
((obj).vptr->IFACE99_PRIV_VCALL_OVERLOAD(__VA_ARGS__)((obj).self, __VA_ARGS__))
#define VCALL_OBJ99(obj, ...) \
((obj).vptr->IFACE99_PRIV_VCALL_OVERLOAD(__VA_ARGS__)((obj), __VA_ARGS__))
#define VCALL_SUPER99(obj, superiface, ...) \
((obj).vptr->superiface->IFACE99_PRIV_VCALL_OVERLOAD(__VA_ARGS__)((obj).self, __VA_ARGS__))
#define VCALL_SUPER_OBJ99(obj, superiface, ...) \
((obj).vptr->superiface->IFACE99_PRIV_VCALL_OVERLOAD(__VA_ARGS__)( \
((superiface){ \
.self = (obj).self, \
.vptr = (obj).vptr->superiface, \
}), \
__VA_ARGS__))
#define IFACE99_PRIV_VCALL_OVERLOAD(...) \
ML99_CAT(IFACE99_PRIV_VCALL_, ML99_VARIADICS_IS_SINGLE(__VA_ARGS__))
#define IFACE99_PRIV_VCALL_1(obj, func_name) func_name(obj)
#define IFACE99_PRIV_VCALL_0(obj, func_name, ...) func_name(obj, __VA_ARGS__)
// } (Virtual calls)
// Various predicates {
#define IFACE99_PRIV_IS_EMPTY_VTABLE(iface) \
ML99_AND(IFACE99_PRIV_IS_MARKER_IFACE(iface), ML99_NOT(IFACE99_PRIV_IS_SUB_IFACE(iface)))
#define IFACE99_PRIV_IS_MARKER_IFACE(iface) ML99_SEQ_IS_EMPTY(iface##_IFACE)
#define IFACE99_PRIV_IS_SUB_IFACE(iface) ML99_IS_TUPLE(iface##_EXTENDS)
#define IFACE99_PRIV_IS_CUSTOM(implementer, func_name) \
ML99_IS_TUPLE(implementer##_##func_name##_CUSTOM)
// } (Various predicates)
// Arity specifiers {
#define IFACE99_PRIV_genRequirement_ARITY 1
#define IFACE99_PRIV_genRequirementImpl_ARITY 2
#define IFACE99_PRIV_genFuncPtr_ARITY 1
#define IFACE99_PRIV_genImplFuncName_ARITY 2
// Public:
#define IFACE99_interface_ARITY 1
#define IFACE99_impl_ARITY 2
#define IFACE99_implExtern_ARITY 2
// } (Arity specifiers)
#endif // INTERFACE99_H