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
|
#include <string.h>
#include <stdbool.h>
#include "parser/parser.h"
#include "tests.h"
static bool text_is(struct Token token, const char* text)
{
size_t length = strlen(text);
return token.length == length && memcmp(token.start, text, length) == 0;
}
static void test_parse_consts(struct TestContext* context)
{
struct Lexer lexer = create_lexer("const A = 1\nconst B = 60\n");
struct Program program;
check(context, parse_program(&lexer, &program));
check(context, program.const_count == 2);
check(context, text_is(program.consts[0].name, "A"));
check(context, text_is(program.consts[0].value, "1"));
check(context, text_is(program.consts[1].name, "B"));
check(context, text_is(program.consts[1].value, "60"));
free_program(&program);
}
static void test_parse_data(struct TestContext* context)
{
struct Lexer lexer = create_lexer("data msg = \"hi\"\n");
struct Program program;
check(context, parse_program(&lexer, &program));
check(context, program.data_count == 1);
check(context, text_is(program.data_decls[0].name, "msg"));
check(context, text_is(program.data_decls[0].value, "\"hi\""));
free_program(&program);
}
static void test_parse_proc_params(struct TestContext* context)
{
struct Lexer lexer = create_lexer("proc f(a: rdi, b: rsi)\n{\n}\n");
struct Program program;
check(context, parse_program(&lexer, &program));
check(context, program.proc_count == 1);
check(context, text_is(program.procs[0].name, "f"));
check(context, program.procs[0].param_count == 2);
check(context, text_is(program.procs[0].params[0].name, "a"));
check(context, text_is(program.procs[0].params[0].reg, "rdi"));
check(context, text_is(program.procs[0].params[1].name, "b"));
check(context, text_is(program.procs[0].params[1].reg, "rsi"));
free_program(&program);
}
static void test_parse_proc_body(struct TestContext* context)
{
struct Lexer lexer = create_lexer("proc main\n{\nrax = 1\nrcx -= 1\n^rsi = rdx\n}\n");
struct Program program;
check(context, parse_program(&lexer, &program));
check(context, program.proc_count == 1);
check(context, program.procs[0].body_count == 3);
struct Statement first = program.procs[0].body[0];
check(context, first.kind == STATEMENT_ASSIGN);
check(context, !first.assign.target_deref);
check(context, text_is(first.assign.target, "rax"));
check(context, text_is(first.assign.op, "="));
check(context, text_is(first.assign.value, "1"));
struct Statement second = program.procs[0].body[1];
check(context, text_is(second.assign.target, "rcx"));
check(context, text_is(second.assign.op, "-="));
struct Statement third = program.procs[0].body[2];
check(context, third.assign.target_deref);
check(context, text_is(third.assign.target, "rsi"));
check(context, text_is(third.assign.value, "rdx"));
free_program(&program);
}
static void test_parse_simple_statements(struct TestContext* context)
{
struct Lexer lexer = create_lexer("proc main\n{\nloop:\nsyscall\ngoto loop\n}\n");
struct Program program;
check(context, parse_program(&lexer, &program));
check(context, program.procs[0].body_count == 3);
struct Statement label = program.procs[0].body[0];
check(context, label.kind == STATEMENT_LABEL);
check(context, text_is(label.label.name, "loop"));
check(context, program.procs[0].body[1].kind == STATEMENT_SYSCALL);
struct Statement jump = program.procs[0].body[2];
check(context, jump.kind == STATEMENT_GOTO);
check(context, text_is(jump.jump.label, "loop"));
free_program(&program);
}
static void test_parse_errors(struct TestContext* context)
{
struct Program program;
struct Lexer missing_name = create_lexer("const = 1\n");
check(context, !parse_program(&missing_name, &program));
free_program(&program);
struct Lexer wrong_value = create_lexer("data x = 5\n");
check(context, !parse_program(&wrong_value, &program));
free_program(&program);
struct Lexer unterminated = create_lexer("proc main\n{\nrax = 1\n");
check(context, !parse_program(&unterminated, &program));
free_program(&program);
}
void run_parser_tests(struct TestContext* context)
{
test_parse_consts(context);
test_parse_data(context);
test_parse_proc_params(context);
test_parse_proc_body(context);
test_parse_simple_statements(context);
test_parse_errors(context);
}
|
