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
|
/*
* Copyright (c) 2025 Quinn Stephens and the OSMORA team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdbool.h>
#include <stddef.h>
#include <string.h>
#include "hash.h"
#include "lexer/keywords.h"
#include "log.h"
#define KEYWORD_COUNT 2
#define KEYWORD_MAP_ROWS 16
static struct list map_rows[KEYWORD_MAP_ROWS];
static struct hashmap map;
static struct {
const char *str;
enum token_kind tok_kind;
uint8_t tok_flags;
} info[KEYWORD_COUNT] = {
{ "void", TOK_VOID, TF_BUILTIN_TYPE },
{ "int" , TOK_INT , TF_BUILTIN_TYPE }
};
static void
add_keyword(const char *str, enum token_kind tok_kind, uint8_t tok_flags)
{
struct keyword *kwd;
kwd = malloc(sizeof(struct keyword));
if (kwd == NULL) {
log_error("Failed to allocate memory for keyword \"%s\"\n", str);
return;
}
kwd->len = strlen(str);
kwd->tok_kind = tok_kind;
kwd->tok_flags = tok_flags;
kwd->hashmap_entry.hash = hash(str, kwd->len);
hashmap_add(map, &kwd->hashmap_entry);
}
struct keyword *
keywords_find(struct token *tok)
{
struct keyword *kwd;
kwd = (struct keyword *)hashmap_find(map, tok->hash);
/* Check that the lengths match just in case */
if (kwd != NULL && kwd->len == tok->len) {
return kwd;
}
return NULL;
}
void
keywords_init(void)
{
log_debug("Initializing keywords...\n");
/* Intiailize hashmap */
map.rows = map_rows;
map.row_count = KEYWORD_MAP_ROWS;
hashmap_init(map);
/* Register all keywords */
for (int k = 0; k < KEYWORD_COUNT; k++) {
add_keyword(info[k].str, info[k].tok_kind, info[k].tok_flags);
}
}
|
