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
|
// Metamethods for structs
#include <stdint.h>
#include <string.h>
#include "lists.h"
#include "bools.h"
#include "functiontype.h"
#include "metamethods.h"
#include "optionals.h"
#include "pointers.h"
#include "siphash.h"
#include "tables.h"
#include "text.h"
#include "util.h"
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wstack-protector"
#endif
PUREFUNC public uint64_t Structヽhash(const void *obj, const TypeInfo_t *type)
{
if (type->StructInfo.num_fields == 0)
return 0;
if (type->StructInfo.num_fields == 1)
return generic_hash(obj, type->StructInfo.fields[0].type);
uint64_t field_hashes[type->StructInfo.num_fields];
ptrdiff_t byte_offset = 0;
ptrdiff_t bit_offset = 0;
for (int i = 0; i < type->StructInfo.num_fields; i++) {
NamedType_t field = type->StructInfo.fields[i];
if (field.type == &Boolヽinfo) {
bool b = ((*(char*)(obj + byte_offset)) >> bit_offset) & 0x1;
field_hashes[i] = (uint32_t)b;
bit_offset += 1;
if (bit_offset >= 8) {
byte_offset += 1;
bit_offset = 0;
}
} else {
if (bit_offset > 0) {
byte_offset += 1;
bit_offset = 0;
}
if (field.type->align && byte_offset % field.type->align > 0)
byte_offset += field.type->align - (byte_offset % field.type->align);
field_hashes[i] = generic_hash(obj + byte_offset, field.type);
byte_offset += field.type->size;
}
}
return siphash24((void*)field_hashes, sizeof(field_hashes));
}
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
PUREFUNC public uint64_t PackedDataヽhash(const void *obj, const TypeInfo_t *type)
{
if (type->StructInfo.num_fields == 0)
return 0;
return siphash24(obj, (size_t)type->size);
}
PUREFUNC public int32_t Structヽcompare(const void *x, const void *y, const TypeInfo_t *type)
{
if (x == y)
return 0;
ptrdiff_t byte_offset = 0;
ptrdiff_t bit_offset = 0;
for (int i = 0; i < type->StructInfo.num_fields; i++) {
NamedType_t field = type->StructInfo.fields[i];
if (field.type == &Boolヽinfo) {
bool bx = ((*(char*)(x + byte_offset)) >> bit_offset) & 0x1;
bool by = ((*(char*)(y + byte_offset)) >> bit_offset) & 0x1;
if (bx != by)
return (int32_t)bx - (int32_t)by;
bit_offset += 1;
if (bit_offset >= 8) {
byte_offset += 1;
bit_offset = 0;
}
} else {
if (bit_offset > 0) {
byte_offset += 1;
bit_offset = 0;
}
if (field.type->align && byte_offset % field.type->align > 0)
byte_offset += field.type->align - (byte_offset % field.type->align);
int32_t cmp = generic_compare(x + byte_offset, y + byte_offset, field.type);
if (cmp != 0)
return cmp;
byte_offset += field.type->size;
}
}
return 0;
}
PUREFUNC public bool Structヽequal(const void *x, const void *y, const TypeInfo_t *type)
{
if (x == y)
return true;
ptrdiff_t byte_offset = 0;
ptrdiff_t bit_offset = 0;
for (int i = 0; i < type->StructInfo.num_fields; i++) {
NamedType_t field = type->StructInfo.fields[i];
if (field.type == &Boolヽinfo) {
bool bx = ((*(char*)(x + byte_offset)) >> bit_offset) & 0x1;
bool by = ((*(char*)(y + byte_offset)) >> bit_offset) & 0x1;
if (bx != by)
return false;
bit_offset += 1;
if (bit_offset >= 8) {
byte_offset += 1;
bit_offset = 0;
}
} else {
if (bit_offset > 0) {
byte_offset += 1;
bit_offset = 0;
}
if (field.type->align && byte_offset % field.type->align > 0)
byte_offset += field.type->align - (byte_offset % field.type->align);
if (!generic_equal(x + byte_offset, y + byte_offset, field.type))
return false;
byte_offset += field.type->size;
}
}
return true;
}
PUREFUNC public bool PackedDataヽequal(const void *x, const void *y, const TypeInfo_t *type)
{
if (x == y) return true;
return (memcmp(x, y, (size_t)type->size) == 0);
}
PUREFUNC public Text_t Structヽas_text(const void *obj, bool colorize, const TypeInfo_t *type)
{
if (!obj) return Textヽfrom_str(type->StructInfo.name);
Text_t name = Textヽfrom_str(type->StructInfo.name);
if (type->StructInfo.is_secret || type->StructInfo.is_opaque) {
return colorize ? Texts(Text("\x1b[0;1m"), name, Text("\x1b[m(...)")) : Texts(name, "(...)");
}
Text_t text = colorize ? Texts(Text("\x1b[0;1m"), name, Text("\x1b[m(")) : Texts(name, "(");
ptrdiff_t byte_offset = 0;
ptrdiff_t bit_offset = 0;
for (int i = 0; i < type->StructInfo.num_fields; i++) {
NamedType_t field = type->StructInfo.fields[i];
if (i > 0)
text = Textヽconcat(text, Text(", "));
if (type->StructInfo.num_fields > 1)
text = Textヽconcat(text, Textヽfrom_str(field.name), Text("="));
if (field.type == &Boolヽinfo) {
bool b = ((*(char*)(obj + byte_offset)) >> bit_offset) & 0x1;
text = Textヽconcat(text, Textヽfrom_str(colorize ? (b ? "\x1b[35myes\x1b[m" : "\x1b[35mno\x1b[m") : (b ? "yes" : "no")));
bit_offset += 1;
if (bit_offset >= 8) {
byte_offset += 1;
bit_offset = 0;
}
} else {
if (bit_offset > 0) {
byte_offset += 1;
bit_offset = 0;
}
if (field.type->align && byte_offset % field.type->align > 0)
byte_offset += field.type->align - (byte_offset % field.type->align);
text = Textヽconcat(text, generic_as_text(obj + byte_offset, colorize, field.type));
byte_offset += field.type->size;
}
}
return Textヽconcat(text, Text(")"));
}
PUREFUNC public bool Structヽis_none(const void *obj, const TypeInfo_t *type)
{
return *(bool*)(obj + type->size);
}
public void Structヽserialize(const void *obj, FILE *out, Table_t *pointers, const TypeInfo_t *type)
{
ptrdiff_t byte_offset = 0;
ptrdiff_t bit_offset = 0;
for (int i = 0; i < type->StructInfo.num_fields; i++) {
NamedType_t field = type->StructInfo.fields[i];
if (field.type == &Boolヽinfo) {
bool b = ((*(char*)(obj + byte_offset)) >> bit_offset) & 0x1;
fputc((int)b, out);
bit_offset += 1;
if (bit_offset >= 8) {
byte_offset += 1;
bit_offset = 0;
}
} else {
if (bit_offset > 0) {
byte_offset += 1;
bit_offset = 0;
}
if (field.type->align && byte_offset % field.type->align > 0)
byte_offset += field.type->align - (byte_offset % field.type->align);
_serialize(obj + byte_offset, out, pointers, field.type);
byte_offset += field.type->size;
}
}
}
public void Structヽdeserialize(FILE *in, void *outval, List_t *pointers, const TypeInfo_t *type)
{
ptrdiff_t byte_offset = 0;
ptrdiff_t bit_offset = 0;
for (int i = 0; i < type->StructInfo.num_fields; i++) {
NamedType_t field = type->StructInfo.fields[i];
if (field.type == &Boolヽinfo) {
bool b = (bool)fgetc(in);
*(char*)(outval + byte_offset) |= (b << bit_offset);
bit_offset += 1;
if (bit_offset >= 8) {
byte_offset += 1;
bit_offset = 0;
}
} else {
if (bit_offset > 0) {
byte_offset += 1;
bit_offset = 0;
}
if (field.type->align && byte_offset % field.type->align > 0)
byte_offset += field.type->align - (byte_offset % field.type->align);
_deserialize(in, outval + byte_offset, pointers, field.type);
byte_offset += field.type->size;
}
}
}
// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
|
