blob: f9f857d3831cb39e61ab2b7176c2198915fc69f4 (
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
|
#include <stdlib.h>
#include "parser/ast.h"
void free_expr(struct Expr* expr)
{
if (expr == NULL)
return;
switch (expr->kind)
{
case EXPR_PRIMARY:
break;
case EXPR_BINARY:
free_expr(expr->binary.left);
free_expr(expr->binary.right);
break;
case EXPR_MEMBER:
free_expr(expr->member.object);
break;
case EXPR_DEREF:
free_expr(expr->deref.address);
break;
}
free(expr);
}
static void free_statement(struct Statement* statement)
{
switch (statement->kind)
{
case STATEMENT_ASSIGN:
free_expr(statement->assign.value);
break;
case STATEMENT_IF:
free_expr(statement->branch.left);
free_expr(statement->branch.right);
free_statement(statement->branch.body);
free(statement->branch.body);
break;
case STATEMENT_CALL:
for (size_t i = 0; i < statement->call.arg_count; i += 1)
free_expr(statement->call.args[i]);
free(statement->call.args);
break;
default:
break;
}
}
void free_proc(struct ProcDecl* proc)
{
free(proc->params);
for (size_t i = 0; i < proc->body_count; i += 1)
free_statement(&proc->body[i]);
free(proc->body);
}
struct Program create_program(void)
{
struct Program program;
program.config.bits = 64;
program.config.has_entry = false;
program.config.logical_registers = false;
program.consts = NULL;
program.const_count = 0;
program.const_capacity = 0;
program.data_decls = NULL;
program.data_count = 0;
program.data_capacity = 0;
program.procs = NULL;
program.proc_count = 0;
program.proc_capacity = 0;
return program;
}
void free_program(struct Program* program)
{
free(program->consts);
free(program->data_decls);
for (size_t i = 0; i < program->proc_count; i += 1)
free_proc(&program->procs[i]);
free(program->procs);
program->consts = NULL;
program->const_count = 0;
program->const_capacity = 0;
program->data_decls = NULL;
program->data_count = 0;
program->data_capacity = 0;
program->procs = NULL;
program->proc_count = 0;
program->proc_capacity = 0;
}
// TODO: generalize this growable-array boilerplate once a third list appears
void add_const(struct Program* program, struct ConstDecl decl)
{
if (program->const_count == program->const_capacity)
{
size_t capacity = program->const_capacity < 8 ? 8 : program->const_capacity * 2;
program->consts = realloc(program->consts, capacity * sizeof(struct ConstDecl));
program->const_capacity = capacity;
}
program->consts[program->const_count] = decl;
program->const_count += 1;
}
void add_data(struct Program* program, struct DataDecl decl)
{
if (program->data_count == program->data_capacity)
{
size_t capacity = program->data_capacity < 8 ? 8 : program->data_capacity * 2;
program->data_decls = realloc(program->data_decls, capacity * sizeof(struct DataDecl));
program->data_capacity = capacity;
}
program->data_decls[program->data_count] = decl;
program->data_count += 1;
}
struct ProcDecl create_proc(void)
{
struct ProcDecl proc;
proc.params = NULL;
proc.param_count = 0;
proc.param_capacity = 0;
proc.body = NULL;
proc.body_count = 0;
proc.body_capacity = 0;
return proc;
}
void add_param(struct ProcDecl* proc, struct Param param)
{
if (proc->param_count == proc->param_capacity)
{
size_t capacity = proc->param_capacity < 4 ? 4 : proc->param_capacity * 2;
proc->params = realloc(proc->params, capacity * sizeof(struct Param));
proc->param_capacity = capacity;
}
proc->params[proc->param_count] = param;
proc->param_count += 1;
}
void add_statement(struct ProcDecl* proc, struct Statement statement)
{
if (proc->body_count == proc->body_capacity)
{
size_t capacity = proc->body_capacity < 8 ? 8 : proc->body_capacity * 2;
proc->body = realloc(proc->body, capacity * sizeof(struct Statement));
proc->body_capacity = capacity;
}
proc->body[proc->body_count] = statement;
proc->body_count += 1;
}
void add_proc(struct Program* program, struct ProcDecl decl)
{
if (program->proc_count == program->proc_capacity)
{
size_t capacity = program->proc_capacity < 8 ? 8 : program->proc_capacity * 2;
program->procs = realloc(program->procs, capacity * sizeof(struct ProcDecl));
program->proc_capacity = capacity;
}
program->procs[program->proc_count] = decl;
program->proc_count += 1;
}
|
