summaryrefslogtreecommitdiff
path: root/graphics/asymptote/LspCpp/include/LibLsp/JsonRpc/serializer.h
blob: 1763c84f5f7c7ef9c3caf550bbf8e76b767d9f13 (plain)
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
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
#pragma once

#include "macro_map.h"

#include <cassert>
#include <memory>
#include <string>
#include <type_traits>
#include <vector>
#include <functional>
#include <map>
#include <algorithm>

#include "optionalVersion.h"

struct AbsolutePath;

enum class SerializeFormat { Json, MessagePack };

// A tag type that can be used to write `null` to json.
struct JsonNull
{
        void swap(JsonNull& arg) noexcept;
};



class Reader {
public:
        virtual ~Reader() {}
        virtual SerializeFormat Format() const = 0;

        virtual bool IsBool() = 0;
        virtual bool IsNull() = 0;
        virtual bool IsArray() = 0;
        virtual bool IsInt() = 0;
        virtual bool IsInt64() = 0;
        virtual bool IsUint64() = 0;
        virtual bool IsDouble() = 0;
    virtual bool IsNumber() = 0;
    virtual bool IsString() = 0;

        virtual void GetNull() = 0;
        virtual bool GetBool() = 0;
        virtual int GetInt() = 0;
        virtual uint32_t GetUint32() = 0;
        virtual int64_t GetInt64() = 0;
        virtual uint64_t GetUint64() = 0;
        virtual double GetDouble() = 0;
        virtual std::string GetString() = 0;

        virtual bool HasMember(const char* x) = 0;
        virtual std::unique_ptr<Reader> operator[](const char* x) = 0;
        virtual void IterMap( std::function<void(const char*, Reader&)> fn) = 0;
        virtual void IterArray(std::function<void(Reader&)> fn) = 0;
        virtual void DoMember(const char* name, std::function<void(Reader&)> fn) = 0;
        virtual std::string ToString() const = 0;
};



class Writer {
public:
        virtual ~Writer() {}
        virtual SerializeFormat Format() const = 0;

        virtual void Null() = 0;
        virtual void Bool(bool x) = 0;
        virtual void Int(int x) = 0;
        virtual void Uint32(uint32_t x) = 0;
        virtual void Int64(int64_t x) = 0;
        virtual void Uint64(uint64_t x) = 0;
        virtual void Double(double x) = 0;
        virtual void String(const char* x) = 0;
        virtual void String(const char* x, size_t len) = 0;
        virtual void StartArray(size_t) = 0;
        virtual void EndArray() = 0;
        virtual void StartObject() = 0;
        virtual void EndObject() = 0;
        virtual void Key(const char* name) = 0;
};



struct optionals_mandatory_tag {};

#define REFLECT_MEMBER_START() ReflectMemberStart(visitor, value)
#define REFLECT_MEMBER_END() ReflectMemberEnd(visitor, value);
#define REFLECT_MEMBER_END1(value) ReflectMemberEnd(visitor, value);
#define REFLECT_MEMBER(name) ReflectMember(visitor, #name, value.name)
#define REFLECT_MEMBER_OPTIONALS(name) \
  ReflectMember(visitor, #name, value.name, optionals_mandatory_tag{})
#define REFLECT_MEMBER2(name, value) ReflectMember(visitor, name, value)

#define MAKE_REFLECT_TYPE_PROXY(type_name) \
  MAKE_REFLECT_TYPE_PROXY2(type_name, std::underlying_type<type_name>::type)
#define MAKE_REFLECT_TYPE_PROXY2(type, as_type)       \
  inline void Reflect(Reader& visitor, type& value) { \
    as_type value0;                                   \
    ::Reflect(visitor, value0);                       \
    value = static_cast<type>(value0);                \
  }                                                   \
  inline void Reflect(Writer& visitor, type& value) { \
    auto value0 = static_cast<as_type>(value);        \
    ::Reflect(visitor, value0);                       \
  }

#define _MAPPABLE_REFLECT_MEMBER(name) REFLECT_MEMBER(name);
#define _MAPPABLE_REFLECT_MEMBER_OPTIONALS(name) REFLECT_MEMBER_OPTIONALS(name);

#define MAKE_REFLECT_EMPTY_STRUCT(type, ...)     \
  template <typename TVisitor>                   \
  void Reflect(TVisitor& visitor, type& value) { \
    REFLECT_MEMBER_START();                      \
    REFLECT_MEMBER_END();                        \
  }

#define MAKE_REFLECT_STRUCT(type, ...)               \
  template <typename TVisitor>                       \
  void Reflect(TVisitor& visitor, type& value) {     \
    REFLECT_MEMBER_START();                          \
    MACRO_MAP(_MAPPABLE_REFLECT_MEMBER, __VA_ARGS__) \
    REFLECT_MEMBER_END();                            \
  }


#define _MAPPABLE_SWAP_MEMBER(name)  std::swap(name,arg.name);

#define  MAKE_SWAP_METHOD(type, ...)                    \
void swap(type& arg) noexcept{                  \
        MACRO_MAP(_MAPPABLE_SWAP_MEMBER, __VA_ARGS__) \
}

#define MAKE_REFLECT_STRUCT_OPTIONALS_MANDATORY(type, ...)     \
  template <typename TVisitor>                                 \
  void Reflect(TVisitor& visitor, type& value) {               \
    REFLECT_MEMBER_START();                                    \
    MACRO_MAP(_MAPPABLE_REFLECT_MEMBER_OPTIONALS, __VA_ARGS__) \
    REFLECT_MEMBER_END();                                      \
  }

// clang-format off
// Config has many fields, we need to support at least its number of fields.
#define NUM_VA_ARGS_IMPL(_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,N,...) N
#define NUM_VA_ARGS(...) NUM_VA_ARGS_IMPL(__VA_ARGS__,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1)
// clang-format on

#define _MAPPABLE_REFLECT_ARRAY(name) Reflect(visitor, value.name);

// Reflects the struct so it is serialized as an array instead of an object.
// This currently only supports writers.
#define MAKE_REFLECT_STRUCT_WRITER_AS_ARRAY(type, ...) \
  inline void Reflect(Writer& visitor, type& value) {  \
    visitor.StartArray(NUM_VA_ARGS(__VA_ARGS__));      \
    MACRO_MAP(_MAPPABLE_REFLECT_ARRAY, __VA_ARGS__)    \
    visitor.EndArray();                                \
  }

//// Elementary types

void Reflect(Reader& visitor, uint8_t& value);
void Reflect(Writer& visitor, uint8_t& value);

void Reflect(Reader& visitor, short& value);
void Reflect(Writer& visitor, short& value);

void Reflect(Reader& visitor, unsigned short& value);
void Reflect(Writer& visitor, unsigned short& value);

void Reflect(Reader& visitor, int& value);
void Reflect(Writer& visitor, int& value);

void Reflect(Reader& visitor, unsigned& value);
void Reflect(Writer& visitor, unsigned& value);

void Reflect(Reader& visitor, long& value);
void Reflect(Writer& visitor, long& value);

void Reflect(Reader& visitor, unsigned long& value);
void Reflect(Writer& visitor, unsigned long& value);

void Reflect(Reader& visitor, long long& value);
void Reflect(Writer& visitor, long long& value);

void Reflect(Reader& visitor, unsigned long long& value);
void Reflect(Writer& visitor, unsigned long long& value);

void Reflect(Reader& visitor, double& value);
void Reflect(Writer& visitor, double& value);

void Reflect(Reader& visitor, bool& value);
void Reflect(Writer& visitor, bool& value);

void Reflect(Reader& visitor, std::string& value);
void Reflect(Writer& visitor, std::string& value);

void Reflect(Reader& visitor, JsonNull& value);
void Reflect(Writer& visitor, JsonNull& value);

void Reflect(Reader& visitor, SerializeFormat& value);
void Reflect(Writer& visitor, SerializeFormat& value);

//// Type constructors
template <typename T>
void Reflect(Reader& visitor, optional<T>& value) {
        if (visitor.IsNull()) {
                visitor.GetNull();
                return;
        }
        T real_value;
        Reflect(visitor, real_value);
        value = std::move(real_value);
}
template <typename T>
void Reflect(Writer& visitor, optional<T>& value) {
        if (value)
                Reflect(visitor, *value);
        else
                visitor.Null();
}


template <typename T>
void ReflectMember(Writer& visitor, const char* name, optional<T>& value) {
        // For TypeScript optional property key?: value in the spec,
        // We omit both key and value if value is std::nullopt (null) for JsonWriter
        // to reduce output. But keep it for other serialization formats.
        if (value || visitor.Format() != SerializeFormat::Json) {
                visitor.Key(name);
                Reflect(visitor, value);
        }
}


template <typename T>
void ReflectMember(Writer& visitor,
        const char* name,
        T& value,
        optionals_mandatory_tag) {
        visitor.Key(name);
        Reflect(visitor, value);
}
template <typename T>
void ReflectMember(Reader& visitor,
        const char* name,
        T& value,
        optionals_mandatory_tag) {
        Reflect(visitor, value);
}

template<class T >
void Reflect(Reader& visitor, std::map<std::string, T>& value)
{
        visitor.IterMap([&](const char* name,Reader& entry) {
                T entry_value;
                Reflect(entry, entry_value);
                value[name]=(std::move(entry_value));
        });
}
template<class _Ty >
void Reflect(Writer& visitor, std::map<std::string, _Ty>& value)
{
        REFLECT_MEMBER_START();
        for (auto& it : value)
        {
                visitor.Key(it.first.c_str());
                Reflect(visitor, it.second);
        }
        REFLECT_MEMBER_END();
}

// std::vector
template <typename T>
void Reflect(Reader& visitor, std::vector<T>& values) {
        visitor.IterArray([&](Reader& entry) {
                T entry_value;
                Reflect(entry, entry_value);
                values.push_back(std::move(entry_value));
                });
}


template <typename T>
void Reflect(Writer& visitor, std::vector<T>& values) {
        visitor.StartArray(values.size());
        for (auto& value : values)
                Reflect(visitor, value);
        visitor.EndArray();
}

// ReflectMember

inline void DefaultReflectMemberStart(Writer& visitor) {
        visitor.StartObject();
}
inline void DefaultReflectMemberStart(Reader& visitor) {}

template <typename T>
bool ReflectMemberStart(Reader& visitor, T& value) {
        return false;
}
template <typename T>
bool ReflectMemberStart(Writer& visitor, T& value) {
        visitor.StartObject();
        return true;
}

template <typename T>
void ReflectMemberEnd(Reader& visitor, T& value) {}
template <typename T>
void ReflectMemberEnd(Writer& visitor, T& value) {
        visitor.EndObject();
}

template <typename T>
void ReflectMember(Reader& visitor, const char* name, T& value) {
        visitor.DoMember(name, [&](Reader& child) { Reflect(child, value); });
}
template <typename T>
void ReflectMember(Writer& visitor, const char* name, T& value) {
        visitor.Key(name);
        Reflect(visitor, value);
}

template<class _Ty1, class _Ty2>
void Reflect(Writer& visitor, std::pair<  optional<_Ty1>, optional<_Ty2> >& value)
{
        if (value.first)
        {
                Reflect(visitor, value.first);
        }
        else
        {
                Reflect(visitor, value.second);
        }
}
template<class _Ty2>
void Reflect(Reader& visitor, std::pair<  optional<bool>, optional<_Ty2> >& value)
{
        if(visitor.IsBool())
        {
                Reflect(visitor, value.first);
                return;
        }

        Reflect(visitor, value.second);
}
template<class _Ty2>
void Reflect(Reader& visitor, std::pair<  optional<std::string>, optional<_Ty2> >& value)
{
        if (visitor.IsString())
        {
                Reflect(visitor, value.first);
                return;
        }

        Reflect(visitor, value.second);
}


template<class _Ty1, class _Ty2>
void Reflect(Reader& visitor, std::pair<  optional<_Ty1>, optional<_Ty2> >& value)
{
        try
        {
                Reflect(visitor, value.second);
        }
        catch (...)
        {
                Reflect(visitor, value.first);
        }
}