zzy/scc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(lex_parser, pprocessor): replace consume with next and remove stream resets

Browse Source 
- Replace `scc_probe_stream_consume` with `scc_probe_stream_next` for consistent stream advancement
- Remove redundant `scc_probe_stream_reset` calls before peeking, as `next` and `peek` handle state
- Update `scc_cstring_new` to `scc_cstring_create` and `scc_pos_init` to `scc_pos_create` for naming consistency
- Change `scc_pp_macro_get` parameter to `const scc_cstring_t*` for better const-correctness
- Improves code clarity and maintains proper stream position tracking
This commit is contained in:
zzy
2025-12-28 10:49:29 +08:00
parent 07f5d9331b
commit 09f4ac8de0
20 changed files with 445 additions and 262 deletions
Download Patch File Download Diff File Expand all files Collapse all files

73
libs/lex_parser/src/lex_parser.c
View File

@@ -2,17 +2,17 @@
void scc_lex_parse_skip_endline(scc_probe_stream_t *input, scc_pos_t *pos) { void scc_lex_parse_skip_endline(scc_probe_stream_t *input, scc_pos_t *pos) {
Assert(input != null && pos != null); Assert(input != null && pos != null);
scc_probe_stream_reset(input); // scc_probe_stream_reset(input);
int ch = scc_probe_stream_peek(input); int ch = scc_probe_stream_peek(input);
if (ch == '\r') { if (ch == '\r') {
scc_probe_stream_consume(input); scc_probe_stream_next(input);
ch = scc_probe_stream_peek(input); ch = scc_probe_stream_peek(input);
if (ch == '\n') { if (ch == '\n') {
scc_probe_stream_consume(input); scc_probe_stream_next(input);
} }
scc_pos_next_line(pos); scc_pos_next_line(pos);
} else if (ch == '\n') { } else if (ch == '\n') {
scc_probe_stream_consume(input); scc_probe_stream_next(input);
scc_pos_next_line(pos); scc_pos_next_line(pos);
} else { } else {
LOG_WARN("not a newline character"); LOG_WARN("not a newline character");
@@ -60,7 +60,7 @@ static inline int got_simple_escape(int ch) {
void scc_lex_parse_skip_line(scc_probe_stream_t *input, scc_pos_t *pos) { void scc_lex_parse_skip_line(scc_probe_stream_t *input, scc_pos_t *pos) {
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
Assert(stream != null && pos != null); Assert(stream != null && pos != null);
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
while (1) { while (1) {
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
@@ -73,7 +73,7 @@ void scc_lex_parse_skip_line(scc_probe_stream_t *input, scc_pos_t *pos) {
scc_lex_parse_skip_endline(stream, pos); scc_lex_parse_skip_endline(stream, pos);
return; return;
} else { } else {
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
} }
} }
@@ -84,18 +84,18 @@ void scc_lex_parse_skip_block_comment(scc_probe_stream_t *input,
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
Assert(stream != null && pos != null); Assert(stream != null && pos != null);
int ch; int ch;
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
ch = scc_probe_stream_consume(stream); ch = scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
// FIXME Assertion // FIXME Assertion
Assert(ch == '/'); Assert(ch == '/');
ch = scc_probe_stream_consume(stream); ch = scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
Assert(ch == '*'); Assert(ch == '*');
// all ready match `/*` // all ready match `/*`
while (1) { while (1) {
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
@@ -107,12 +107,12 @@ void scc_lex_parse_skip_block_comment(scc_probe_stream_t *input,
scc_lex_parse_skip_endline(stream, pos); scc_lex_parse_skip_endline(stream, pos);
continue; continue;
} }
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
if (ch == '*') { if (ch == '*') {
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
if (ch == '/') { if (ch == '/') {
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
return; return;
} }
@@ -123,7 +123,7 @@ void scc_lex_parse_skip_block_comment(scc_probe_stream_t *input,
void scc_lex_parse_skip_whitespace(scc_probe_stream_t *input, scc_pos_t *pos) { void scc_lex_parse_skip_whitespace(scc_probe_stream_t *input, scc_pos_t *pos) {
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
Assert(stream != null && pos != null); Assert(stream != null && pos != null);
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
while (1) { while (1) {
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
@@ -131,7 +131,7 @@ void scc_lex_parse_skip_whitespace(scc_probe_stream_t *input, scc_pos_t *pos) {
return; return;
} }
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
} }
} }
@@ -143,7 +143,7 @@ static inline cbool _lex_parse_uint(scc_probe_stream_t *input, scc_pos_t *pos,
return false; return false;
} }
Assert(base == 2 || base == 8 || base == 10 || base == 16); Assert(base == 2 || base == 8 || base == 10 || base == 16);
scc_probe_stream_reset(input); // scc_probe_stream_reset(input);
int ch, tmp; int ch, tmp;
usize n = 0; usize n = 0;
usize offset = pos->offset; usize offset = pos->offset;
@@ -167,7 +167,7 @@ static inline cbool _lex_parse_uint(scc_probe_stream_t *input, scc_pos_t *pos,
return false; return false;
} }
scc_probe_stream_consume(input); scc_probe_stream_next(input);
scc_pos_next(pos); scc_pos_next(pos);
n = n * base + tmp; n = n * base + tmp;
// TODO number overflow // TODO number overflow
@@ -191,8 +191,8 @@ static inline cbool _lex_parse_uint(scc_probe_stream_t *input, scc_pos_t *pos,
int scc_lex_parse_char(scc_probe_stream_t *input, scc_pos_t *pos) { int scc_lex_parse_char(scc_probe_stream_t *input, scc_pos_t *pos) {
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
Assert(stream != null && pos != null); Assert(stream != null && pos != null);
scc_probe_stream_reset(stream); int ch = scc_probe_stream_next(stream);
int ch = scc_probe_stream_peek(stream); scc_pos_next(pos);
int ret = scc_stream_eof; int ret = scc_stream_eof;
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
@@ -202,17 +202,16 @@ int scc_lex_parse_char(scc_probe_stream_t *input, scc_pos_t *pos) {
LOG_WARN("Unexpected character '%c' at begin", ch); LOG_WARN("Unexpected character '%c' at begin", ch);
goto ERR; goto ERR;
} }
scc_probe_stream_consume(stream); // scc_probe_stream_next(stream);
scc_pos_next(pos);
ch = scc_probe_stream_consume(stream); ch = scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
LOG_WARN("Unexpected EOF at middle"); LOG_WARN("Unexpected EOF at middle");
goto ERR; goto ERR;
} else if (ch == '\\') { } else if (ch == '\\') {
ch = scc_probe_stream_consume(stream); ch = scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
if (ch == '0') { if (ch == '0') {
// 数字转义序列 // 数字转义序列
@@ -238,7 +237,7 @@ int scc_lex_parse_char(scc_probe_stream_t *input, scc_pos_t *pos) {
} else { } else {
ret = ch; ret = ch;
} }
if ((ch = scc_probe_stream_consume(stream)) != '\'') { if ((ch = scc_probe_stream_next(stream)) != '\'') {
LOG_ERROR("Unclosed character literal '%c' at end, expect `'`", ch); LOG_ERROR("Unclosed character literal '%c' at end, expect `'`", ch);
scc_pos_next(pos); scc_pos_next(pos);
goto ERR; goto ERR;
@@ -262,7 +261,7 @@ cbool scc_lex_parse_string(scc_probe_stream_t *input, scc_pos_t *pos,
scc_cstring_t *output) { scc_cstring_t *output) {
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
Assert(stream != null && pos != null && output != null); Assert(stream != null && pos != null && output != null);
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
Assert(scc_cstring_is_empty(output)); Assert(scc_cstring_is_empty(output));
@@ -273,7 +272,7 @@ cbool scc_lex_parse_string(scc_probe_stream_t *input, scc_pos_t *pos,
LOG_WARN("Unexpected character '%c' at begin", ch); LOG_WARN("Unexpected character '%c' at begin", ch);
goto ERR; goto ERR;
} }
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
scc_cstring_t str = scc_cstring_from_cstr(""); scc_cstring_t str = scc_cstring_from_cstr("");
@@ -288,8 +287,8 @@ cbool scc_lex_parse_string(scc_probe_stream_t *input, scc_pos_t *pos,
goto ERR; goto ERR;
} else if (ch == '\\') { } else if (ch == '\\') {
// TODO bad practice and maybe bugs here // TODO bad practice and maybe bugs here
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
ch = scc_probe_stream_consume(stream); ch = scc_probe_stream_next(stream);
int val = got_simple_escape(ch); int val = got_simple_escape(ch);
if (val == -1) { if (val == -1) {
LOG_ERROR("Invalid escape character it is \\%c [%d]", ch, ch); LOG_ERROR("Invalid escape character it is \\%c [%d]", ch, ch);
@@ -298,12 +297,12 @@ cbool scc_lex_parse_string(scc_probe_stream_t *input, scc_pos_t *pos,
continue; continue;
} }
} else if (ch == '"') { } else if (ch == '"') {
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
break; break;
} }
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
scc_cstring_append_ch(&str, ch); scc_cstring_append_ch(&str, ch);
} }
@@ -328,7 +327,7 @@ cbool scc_lex_parse_number(scc_probe_stream_t *input, scc_pos_t *pos,
usize *output) { usize *output) {
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
Assert(stream != null && pos != null && output != null); Assert(stream != null && pos != null && output != null);
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
int base = 10; // 默认十进制 int base = 10; // 默认十进制
@@ -339,7 +338,7 @@ cbool scc_lex_parse_number(scc_probe_stream_t *input, scc_pos_t *pos,
if (ch == '0') { if (ch == '0') {
// 消费 '0' // 消费 '0'
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
// 查看下一个字符 // 查看下一个字符
@@ -347,12 +346,12 @@ cbool scc_lex_parse_number(scc_probe_stream_t *input, scc_pos_t *pos,
if (ch == 'x' || ch == 'X') { if (ch == 'x' || ch == 'X') {
// 十六进制 // 十六进制
base = 16; base = 16;
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
} else if (ch == 'b' || ch == 'B') { } else if (ch == 'b' || ch == 'B') {
// 二进制 (C23扩展) // 二进制 (C23扩展)
base = 2; base = 2;
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
} else if (ch >= '0' && ch <= '7') { } else if (ch >= '0' && ch <= '7') {
// 八进制 // 八进制
@@ -375,7 +374,7 @@ cbool scc_lex_parse_number(scc_probe_stream_t *input, scc_pos_t *pos,
} }
// 解析整数部分 // 解析整数部分
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
usize n; usize n;
if (_lex_parse_uint(stream, pos, base, &n) == false) { if (_lex_parse_uint(stream, pos, base, &n) == false) {
// 如果没有匹配任何数字，但输入是 '0'，已经处理过了 // 如果没有匹配任何数字，但输入是 '0'，已经处理过了
@@ -384,7 +383,7 @@ cbool scc_lex_parse_number(scc_probe_stream_t *input, scc_pos_t *pos,
// 单个数字的情况，例如 "1" // 单个数字的情况，例如 "1"
// 我们需要消费这个数字并返回它的值 // 我们需要消费这个数字并返回它的值
if (ch >= '1' && ch <= '9') { if (ch >= '1' && ch <= '9') {
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
*output = ch - '0'; *output = ch - '0';
return true; return true;
@@ -412,7 +411,7 @@ cbool scc_lex_parse_identifier(scc_probe_stream_t *input, scc_pos_t *pos,
Assert(input != null && pos != null && output != null); Assert(input != null && pos != null && output != null);
Assert(scc_cstring_is_empty(output)); Assert(scc_cstring_is_empty(output));
scc_probe_stream_t *stream = input; scc_probe_stream_t *stream = input;
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
@@ -420,7 +419,7 @@ cbool scc_lex_parse_identifier(scc_probe_stream_t *input, scc_pos_t *pos,
} else if (scc_lex_parse_is_identifier_prefix(ch)) { } else if (scc_lex_parse_is_identifier_prefix(ch)) {
while (1) { while (1) {
scc_cstring_append_ch(output, ch); scc_cstring_append_ch(output, ch);
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_pos_next(pos); scc_pos_next(pos);
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') ||

8
libs/lex_parser/tests/test_char.c
View File

@@ -4,12 +4,16 @@
cbool check_char(const char *str, int expect, int *output) { cbool check_char(const char *str, int expect, int *output) {
log_set_level(&__default_logger_root, 0); log_set_level(&__default_logger_root, 0);
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
scc_mem_probe_stream_t mem_stream; scc_mem_probe_stream_t mem_stream;
scc_probe_stream_t *stream = scc_probe_stream_t *stream =
scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false); scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false);
*output = scc_lex_parse_char(stream, &pos); *output = scc_lex_parse_char(stream, &pos);
return *output == expect; cbool ret1 = *output == expect;
scc_probe_stream_reset(stream);
*output = scc_lex_parse_char(stream, &pos);
cbool ret2 = *output == expect;
return ret1 && ret2;
} }
#define CHECK_CHAR_VALID(str, expect) \ #define CHECK_CHAR_VALID(str, expect) \

6
libs/lex_parser/tests/test_identifier.c
View File

@@ -5,7 +5,7 @@
cbool check_identifier(const char *str, const char *expect, cbool check_identifier(const char *str, const char *expect,
scc_cstring_t *output) { scc_cstring_t *output) {
log_set_level(&__default_logger_root, 0); log_set_level(&__default_logger_root, 0);
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
scc_mem_probe_stream_t mem_stream; scc_mem_probe_stream_t mem_stream;
scc_probe_stream_t *stream = scc_probe_stream_t *stream =
scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false); scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false);
@@ -19,7 +19,7 @@ cbool check_identifier(const char *str, const char *expect,
#define CHECK_IDENTIFIER_VALID(str, expect) \ #define CHECK_IDENTIFIER_VALID(str, expect) \
do { \ do { \
scc_cstring_t _output = scc_cstring_new(); \ scc_cstring_t _output = scc_cstring_create(); \
cbool ret = check_identifier(str, expect, &_output); \ cbool ret = check_identifier(str, expect, &_output); \
TEST_CHECK(ret == true); \ TEST_CHECK(ret == true); \
TEST_CHECK(strcmp(_output.data, expect) == 0); \ TEST_CHECK(strcmp(_output.data, expect) == 0); \
@@ -28,7 +28,7 @@ cbool check_identifier(const char *str, const char *expect,
#define CHECK_IDENTIFIER_INVALID(str) \ #define CHECK_IDENTIFIER_INVALID(str) \
do { \ do { \
scc_cstring_t _output = scc_cstring_new(); \ scc_cstring_t _output = scc_cstring_create(); \
cbool ret = check_identifier(str, NULL, &_output); \ cbool ret = check_identifier(str, NULL, &_output); \
TEST_CHECK(ret == false); \ TEST_CHECK(ret == false); \
scc_cstring_free(&_output); \ scc_cstring_free(&_output); \

2
libs/lex_parser/tests/test_number.c
View File

@@ -5,7 +5,7 @@ cbool check(const char *str, usize expect, usize *output) {
// TODO maybe have other logger // TODO maybe have other logger
(void)(expect); (void)(expect);
log_set_level(&__default_logger_root, 0); log_set_level(&__default_logger_root, 0);
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
scc_mem_probe_stream_t mem_stream; scc_mem_probe_stream_t mem_stream;
scc_probe_stream_t *stream = scc_probe_stream_t *stream =
scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false); scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false);

3
libs/lex_parser/tests/test_skip_block_comment.c
View File

@@ -4,12 +4,13 @@
void check_skip_block_comment(const char *str, const char *expect_remaining) { void check_skip_block_comment(const char *str, const char *expect_remaining) {
log_set_level(&__default_logger_root, 0); log_set_level(&__default_logger_root, 0);
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
scc_mem_probe_stream_t mem_stream; scc_mem_probe_stream_t mem_stream;
scc_probe_stream_t *stream = scc_probe_stream_t *stream =
scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false); scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false);
scc_lex_parse_skip_block_comment(stream, &pos); scc_lex_parse_skip_block_comment(stream, &pos);
scc_probe_stream_sync(stream);
// Check remaining content // Check remaining content
char buffer[256] = {0}; char buffer[256] = {0};

3
libs/lex_parser/tests/test_skip_line.c
View File

@@ -4,12 +4,13 @@
void check_skip_line(const char *str, const char *expect_remaining) { void check_skip_line(const char *str, const char *expect_remaining) {
log_set_level(&__default_logger_root, 0); log_set_level(&__default_logger_root, 0);
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
scc_mem_probe_stream_t mem_stream; scc_mem_probe_stream_t mem_stream;
scc_probe_stream_t *stream = scc_probe_stream_t *stream =
scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false); scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false);
scc_lex_parse_skip_line(stream, &pos); scc_lex_parse_skip_line(stream, &pos);
scc_probe_stream_sync(stream);
// Check remaining content // Check remaining content
char buffer[256] = {0}; char buffer[256] = {0};

6
libs/lex_parser/tests/test_string.c
View File

@@ -4,7 +4,7 @@
cbool check_string(const char *str, const char *expect, scc_cstring_t *output) { cbool check_string(const char *str, const char *expect, scc_cstring_t *output) {
log_set_level(&__default_logger_root, 0); log_set_level(&__default_logger_root, 0);
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
scc_mem_probe_stream_t mem_stream; scc_mem_probe_stream_t mem_stream;
scc_probe_stream_t *stream = scc_probe_stream_t *stream =
scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false); scc_mem_probe_stream_init(&mem_stream, str, scc_strlen(str), false);
@@ -18,7 +18,7 @@ cbool check_string(const char *str, const char *expect, scc_cstring_t *output) {
#define CHECK_STRING_VALID(str, expect) \ #define CHECK_STRING_VALID(str, expect) \
do { \ do { \
scc_cstring_t _output = scc_cstring_new(); \ scc_cstring_t _output = scc_cstring_create(); \
cbool ret = check_string(str, expect, &_output); \ cbool ret = check_string(str, expect, &_output); \
TEST_CHECK(ret == true); \ TEST_CHECK(ret == true); \
TEST_CHECK(strcmp(_output.data, expect) == 0); \ TEST_CHECK(strcmp(_output.data, expect) == 0); \
@@ -27,7 +27,7 @@ cbool check_string(const char *str, const char *expect, scc_cstring_t *output) {
#define CHECK_STRING_INVALID(str) \ #define CHECK_STRING_INVALID(str) \
do { \ do { \
scc_cstring_t _output = scc_cstring_new(); \ scc_cstring_t _output = scc_cstring_create(); \
cbool ret = check_string(str, NULL, &_output); \ cbool ret = check_string(str, NULL, &_output); \
TEST_CHECK(ret == false); \ TEST_CHECK(ret == false); \
scc_cstring_free(&_output); \ scc_cstring_free(&_output); \

47
libs/lexer/src/lexer.c
View File

@@ -77,7 +77,7 @@ static inline int keyword_cmp(const char *name, int len) {
void scc_lexer_init(scc_lexer_t *lexer, scc_probe_stream_t *stream) { void scc_lexer_init(scc_lexer_t *lexer, scc_probe_stream_t *stream) {
lexer->stream = stream; lexer->stream = stream;
lexer->pos = scc_pos_init(); lexer->pos = scc_pos_create();
// FIXME // FIXME
lexer->pos.name = scc_cstring_copy(&stream->name); lexer->pos.name = scc_cstring_copy(&stream->name);
} }
@@ -91,7 +91,7 @@ static void parse_line(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
int ch = scc_probe_stream_next(stream); int ch = scc_probe_stream_next(stream);
usize n; usize n;
scc_cstring_t str = scc_cstring_new(); scc_cstring_t str = scc_cstring_create();
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
LEX_WARN("Unexpected EOF at begin"); LEX_WARN("Unexpected EOF at begin");
@@ -113,13 +113,13 @@ static void parse_line(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
} }
} }
if (scc_lex_parse_number(lexer->stream, &lexer->pos, &n) == false) { if (scc_lex_parse_number(stream, &lexer->pos, &n) == false) {
LEX_ERROR("Invalid line number"); LEX_ERROR("Invalid line number");
goto SKIP_LINE; goto SKIP_LINE;
} }
if (scc_probe_stream_consume(stream) != ' ') { if (scc_probe_stream_consume(stream) != ' ') {
scc_lex_parse_skip_line(lexer->stream, &lexer->pos); scc_lex_parse_skip_line(stream, &lexer->pos);
token->loc.line = token->value.n; token->loc.line = token->value.n;
} }
@@ -127,19 +127,21 @@ static void parse_line(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
LEX_ERROR("Invalid `#` line"); LEX_ERROR("Invalid `#` line");
goto SKIP_LINE; goto SKIP_LINE;
} }
if (scc_lex_parse_string(lexer->stream, &lexer->pos, &str) == false) { if (scc_lex_parse_string(stream, &lexer->pos, &str) == false) {
LEX_ERROR("Invalid filename"); LEX_ERROR("Invalid filename");
goto SKIP_LINE; goto SKIP_LINE;
} }
scc_lex_parse_skip_line(lexer->stream, &lexer->pos); scc_lex_parse_skip_line(stream, &lexer->pos);
scc_probe_stream_sync(stream);
token->loc.line = n; token->loc.line = n;
// FIXME memory leak // FIXME memory leak
token->loc.name = scc_cstring_copy(&str); token->loc.name = scc_cstring_copy(&str);
scc_cstring_free(&str); scc_cstring_free(&str);
return; return;
SKIP_LINE: SKIP_LINE:
scc_lex_parse_skip_line(lexer->stream, &lexer->pos); scc_lex_parse_skip_line(stream, &lexer->pos);
scc_probe_stream_sync(stream);
ERR: ERR:
set_err_token(token); set_err_token(token);
scc_cstring_free(&str); scc_cstring_free(&str);
@@ -212,11 +214,15 @@ void scc_lexer_get_token(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
type = SCC_TOK_ASSIGN_DIV; type = SCC_TOK_ASSIGN_DIV;
goto double_char; goto double_char;
case '/': case '/':
scc_lex_parse_skip_line(lexer->stream, &lexer->pos); scc_probe_stream_reset(stream);
scc_lex_parse_skip_line(stream, &lexer->pos);
scc_probe_stream_sync(stream);
token->type = SCC_TOK_LINE_COMMENT; token->type = SCC_TOK_LINE_COMMENT;
goto END; goto END;
case '*': case '*':
scc_lex_parse_skip_block_comment(lexer->stream, &lexer->pos); scc_probe_stream_reset(stream);
scc_lex_parse_skip_block_comment(stream, &lexer->pos);
scc_probe_stream_sync(stream);
token->type = SCC_TOK_BLOCK_COMMENT; token->type = SCC_TOK_BLOCK_COMMENT;
goto END; goto END;
default: default:
@@ -369,7 +375,8 @@ void scc_lexer_get_token(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
break; break;
case '\r': case '\r':
case '\n': case '\n':
scc_lex_parse_skip_endline(lexer->stream, &lexer->pos); scc_lex_parse_skip_endline(stream, &lexer->pos);
scc_probe_stream_sync(stream);
token->type = SCC_TOK_BLANK; token->type = SCC_TOK_BLANK;
goto END; goto END;
case '#': case '#':
@@ -384,7 +391,9 @@ void scc_lexer_get_token(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
case '\'': { case '\'': {
token->loc = lexer->pos; token->loc = lexer->pos;
token->type = SCC_TOK_CHAR_LITERAL; token->type = SCC_TOK_CHAR_LITERAL;
int ch = scc_lex_parse_char(lexer->stream, &lexer->pos); scc_probe_stream_reset(stream);
int ch = scc_lex_parse_char(stream, &lexer->pos);
scc_probe_stream_sync(stream);
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
LEX_ERROR("Unexpected character literal"); LEX_ERROR("Unexpected character literal");
token->type = SCC_TOK_UNKNOWN; token->type = SCC_TOK_UNKNOWN;
@@ -396,8 +405,10 @@ void scc_lexer_get_token(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
case '"': { case '"': {
token->loc = lexer->pos; token->loc = lexer->pos;
token->type = SCC_TOK_STRING_LITERAL; token->type = SCC_TOK_STRING_LITERAL;
scc_cstring_t output = scc_cstring_new(); scc_cstring_t output = scc_cstring_create();
if (scc_lex_parse_string(lexer->stream, &lexer->pos, &output) == true) { scc_probe_stream_reset(stream);
if (scc_lex_parse_string(stream, &lexer->pos, &output) == true) {
scc_probe_stream_sync(stream);
token->value.cstr.data = scc_cstring_as_cstr(&output); token->value.cstr.data = scc_cstring_as_cstr(&output);
token->value.cstr.len = scc_cstring_len(&output); token->value.cstr.len = scc_cstring_len(&output);
} else { } else {
@@ -414,7 +425,9 @@ void scc_lexer_get_token(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
token->loc = lexer->pos; token->loc = lexer->pos;
token->type = SCC_TOK_INT_LITERAL; token->type = SCC_TOK_INT_LITERAL;
usize output; usize output;
if (scc_lex_parse_number(lexer->stream, &lexer->pos, &output) == true) { scc_probe_stream_reset(stream);
if (scc_lex_parse_number(stream, &lexer->pos, &output) == true) {
scc_probe_stream_sync(stream);
token->value.n = output; token->value.n = output;
} else { } else {
LEX_ERROR("Unexpected number literal"); LEX_ERROR("Unexpected number literal");
@@ -431,8 +444,10 @@ void scc_lexer_get_token(scc_lexer_t *lexer, scc_lexer_tok_t *token) {
case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U': case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
case 'V': case 'W': case 'X': case 'Y': case 'Z': case '_': case 'V': case 'W': case 'X': case 'Y': case 'Z': case '_':
/* clang-format on */ /* clang-format on */
scc_cstring_t str = scc_cstring_new(); scc_cstring_t str = scc_cstring_create();
cbool ret = scc_lex_parse_identifier(lexer->stream, &lexer->pos, &str); scc_probe_stream_reset(stream);
cbool ret = scc_lex_parse_identifier(stream, &lexer->pos, &str);
scc_probe_stream_sync(stream);
Assert(ret == true); Assert(ret == true);
int res = keyword_cmp(scc_cstring_as_cstr(&str), scc_cstring_len(&str)); int res = keyword_cmp(scc_cstring_as_cstr(&str), scc_cstring_len(&str));

3
libs/lexer/tests/test_run.c
View File

@@ -28,7 +28,8 @@ int main(int argc, char *argv[]) {
} else { } else {
// FIXME it is a hack lexer_logger // FIXME it is a hack lexer_logger
log_set_level(&__smcc_lexer_log, LOG_LEVEL_NOTSET); log_set_level(&__smcc_lexer_log, LOG_LEVEL_NOTSET);
log_set_level(NULL, LOG_LEVEL_INFO | LOG_LEVEL_WARN | LOG_LEVEL_ERROR); log_set_level(NULL, LOG_LEVEL_INFO | LOG_LEVEL_WARN | LOG_LEVEL_ERROR |
LOG_LEVEL_FATAL);
} }
const char *file_name = __FILE__; const char *file_name = __FILE__;

3
libs/pprocessor/include/pp_macro.h
View File

@@ -8,6 +8,7 @@
typedef enum { typedef enum {
SCC_PP_MACRO_OBJECT, // 对象宏 SCC_PP_MACRO_OBJECT, // 对象宏
SCC_PP_MACRO_FUNCTION, // 函数宏 SCC_PP_MACRO_FUNCTION, // 函数宏
SCC_PP_MACRO_NONE, // 不是宏
} scc_pp_macro_type_t; } scc_pp_macro_type_t;
typedef SCC_VEC(scc_cstring_t) scc_pp_macro_list_t; typedef SCC_VEC(scc_cstring_t) scc_pp_macro_list_t;
@@ -79,7 +80,7 @@ scc_pp_macro_t *scc_pp_macro_table_set(scc_pp_macro_table_t *pp,
* @return 找到的宏对象指针，未找到返回NULL * @return 找到的宏对象指针，未找到返回NULL
*/ */
scc_pp_macro_t *scc_pp_macro_table_get(scc_pp_macro_table_t *pp, scc_pp_macro_t *scc_pp_macro_table_get(scc_pp_macro_table_t *pp,
scc_cstring_t *name); const scc_cstring_t *name);
/** /**
* @brief 从预处理器中删除宏 * @brief 从预处理器中删除宏

32
libs/pprocessor/include/pp_token.h
View File

@@ -4,22 +4,22 @@
/* clang-format off */ /* clang-format off */
/// https://cppreference.cn/w/c/preprocessor /// https://cppreference.cn/w/c/preprocessor
#define SCC_PP_INST_TOKEN \ #define SCC_PP_INST_TOKEN \
X(define , SCC_PP_STD, SCC_PP_TOK_DEFINE ) \ X(define , SCC_PP_STD, SCC_PP_TOK_DEFINE ) \
X(elif , SCC_PP_STD, SCC_PP_TOK_UNDEF ) \ X(elif , SCC_PP_STD, SCC_PP_TOK_ELIF ) \
X(elifdef , SCC_PP_STD, SCC_PP_TOK_INCLUDE ) \ X(elifdef , SCC_PP_STD, SCC_PP_TOK_ELIFDEF ) \
X(elifndef , SCC_PP_STD, SCC_PP_TOK_IF ) \ X(elifndef , SCC_PP_STD, SCC_PP_TOK_ELIFNDEF ) \
X(else , SCC_PP_STD, SCC_PP_TOK_IFDEF ) \ X(else , SCC_PP_STD, SCC_PP_TOK_ELSE ) \
X(embed , SCC_PP_STD, SCC_PP_TOK_IFNDEF ) \ X(embed , SCC_PP_STD, SCC_PP_TOK_EMBED ) \
X(endif , SCC_PP_STD, SCC_PP_TOK_ELSE ) \ X(endif , SCC_PP_STD, SCC_PP_TOK_ENDIF ) \
X(error , SCC_PP_STD, SCC_PP_TOK_ELIF ) \ X(error , SCC_PP_STD, SCC_PP_TOK_ERROR ) \
X(if , SCC_PP_STD, SCC_PP_TOK_ELIFDEF ) \ X(if , SCC_PP_STD, SCC_PP_TOK_IF ) \
X(ifdef , SCC_PP_C23, SCC_PP_TOK_ELIFNDEF ) \ X(ifdef , SCC_PP_C23, SCC_PP_TOK_IFDEF ) \
X(ifndef , SCC_PP_STD, SCC_PP_TOK_ENDIF ) \ X(ifndef , SCC_PP_STD, SCC_PP_TOK_IFNDEF ) \
X(include , SCC_PP_STD, SCC_PP_TOK_LINE ) \ X(include , SCC_PP_STD, SCC_PP_TOK_INCLUDE ) \
X(line , SCC_PP_C23, SCC_PP_TOK_EMBED ) \ X(line , SCC_PP_C23, SCC_PP_TOK_LINE ) \
X(pragma , SCC_PP_STD, SCC_PP_TOK_ERROR ) \ X(pragma , SCC_PP_STD, SCC_PP_TOK_PRAGMA ) \
X(undef , SCC_PP_C23, SCC_PP_TOK_WARNING ) \ X(undef , SCC_PP_C23, SCC_PP_TOK_UNDEF ) \
X(warning , SCC_PP_STD, SCC_PP_TOK_PRAMA ) \ X(warning , SCC_PP_STD, SCC_PP_TOK_WARNING ) \
// END // END
/* clang-format on */ /* clang-format on */

392
libs/pprocessor/src/expand_macro.c
View File

@@ -4,7 +4,7 @@
#include <pp_parse.h> #include <pp_parse.h>
static inline void scc_generate_cstr(scc_cstring_t *buff) { static inline void scc_generate_cstr(scc_cstring_t *buff) {
scc_cstring_t out_buff = scc_cstring_new(); scc_cstring_t out_buff = scc_cstring_create();
scc_cstring_append_ch(&out_buff, '\"'); scc_cstring_append_ch(&out_buff, '\"');
// TODO it is too simple // TODO it is too simple
scc_cstring_append(&out_buff, buff); scc_cstring_append(&out_buff, buff);
@@ -34,7 +34,7 @@ static inline void scc_generate_cstr(scc_cstring_t *buff) {
scc_cstring_append(out_buff, &scc_vec_at(*list, font)); \ scc_cstring_append(out_buff, &scc_vec_at(*list, font)); \
} }
// for # ## to generator string // for # ## to generator string
static inline cbool scc_pp_expand_string_unsafe(scc_pp_macro_list_t *list, static inline cbool scc_pp_expand_string_unsafe(const scc_pp_macro_list_t *list,
scc_cstring_t *out_buff) { scc_cstring_t *out_buff) {
for (usize i = 0; i < list->size; ++i) { for (usize i = 0; i < list->size; ++i) {
if (SCC_PP_IS_LIST_BLANK(i + 1)) { if (SCC_PP_IS_LIST_BLANK(i + 1)) {
@@ -52,7 +52,7 @@ static inline cbool scc_pp_expand_string_unsafe(scc_pp_macro_list_t *list,
if (i < list->size) { if (i < list->size) {
scc_generate_cstr(&scc_vec_at(*list, i)); scc_generate_cstr(&scc_vec_at(*list, i));
} else { } else {
LOG_WARN("# need a valid literator"); LOG_ERROR("# need a valid literator");
break; break;
} }
} }
@@ -62,7 +62,7 @@ static inline cbool scc_pp_expand_string_unsafe(scc_pp_macro_list_t *list,
} }
// 展开对象宏 // 展开对象宏
cbool scc_pp_expand_object_macro(scc_pp_macro_t *macro, cbool scc_pp_expand_object_macro(const scc_pp_macro_t *macro,
scc_cstring_t *out_buff) { scc_cstring_t *out_buff) {
Assert(macro->type == SCC_PP_MACRO_OBJECT && macro->params.size == 0); Assert(macro->type == SCC_PP_MACRO_OBJECT && macro->params.size == 0);
Assert(scc_cstring_is_empty(out_buff) == true); Assert(scc_cstring_is_empty(out_buff) == true);
@@ -72,14 +72,14 @@ cbool scc_pp_expand_object_macro(scc_pp_macro_t *macro,
} }
// 展开函数宏 // 展开函数宏
cbool scc_pp_expand_function_macro(scc_pp_macro_t *macro, cbool scc_pp_expand_function_macro(const scc_pp_macro_t *macro,
scc_pp_macro_list_t *origin_params, const scc_pp_macro_list_t *origin_params,
scc_pp_macro_list_t *params, scc_pp_macro_list_t *params,
scc_cstring_t *out_buff) { scc_cstring_t *out_buff) {
Assert(macro->type == SCC_PP_MACRO_FUNCTION); Assert(macro->type == SCC_PP_MACRO_FUNCTION);
Assert(out_buff != null); Assert(out_buff != null);
Assert(scc_cstring_is_empty(out_buff) == true); Assert(scc_cstring_is_empty(out_buff) == true);
Assert(params->size == macro->params.size); Assert(params->size == macro->params.size || params->size == 0);
scc_pp_macro_list_t list; scc_pp_macro_list_t list;
scc_vec_init(list); scc_vec_init(list);
@@ -88,11 +88,16 @@ cbool scc_pp_expand_function_macro(scc_pp_macro_t *macro,
for (usize j = 0; j < macro->params.size; ++j) { for (usize j = 0; j < macro->params.size; ++j) {
if (scc_strcmp( if (scc_strcmp(
scc_cstring_as_cstr(&scc_vec_at(macro->replaces, i)), scc_cstring_as_cstr(&scc_vec_at(macro->replaces, i)),
scc_cstring_as_cstr(&scc_vec_at(macro->params, j))) == 0) { scc_cstring_as_cstr(&scc_vec_at(macro->params, j))) != 0) {
Assert(&scc_vec_at(*params, j) != null); continue;
scc_vec_push(list, scc_cstring_copy(&scc_vec_at(*params, j))); }
if (params->size == 0) {
scc_vec_push(list, scc_cstring_from_cstr(""));
goto END; goto END;
} }
Assert(&scc_vec_at(*params, j) != null);
scc_vec_push(list, scc_cstring_copy(&scc_vec_at(*params, j)));
goto END;
} }
scc_vec_push(list, scc_cstring_copy(&scc_vec_at(macro->replaces, i))); scc_vec_push(list, scc_cstring_copy(&scc_vec_at(macro->replaces, i)));
END:; END:;
@@ -110,10 +115,10 @@ typedef struct {
scc_pp_macro_table_t *macros; scc_pp_macro_table_t *macros;
scc_pp_macro_table_t painted_blue; // 正在展开的宏 scc_pp_macro_table_t painted_blue; // 正在展开的宏
int depth; int depth;
} macro_expansion_state_t; } scc_expansion_ctx_t;
// 进入宏展开 // 进入宏展开
static void enter_macro_expansion(macro_expansion_state_t *state, static void enter_macro_expansion(scc_expansion_ctx_t *state,
scc_pp_macro_t *macro) { scc_pp_macro_t *macro) {
// 添加到活动宏集合 // 添加到活动宏集合
scc_pp_macro_table_set(&state->painted_blue, scc_pp_macro_table_set(&state->painted_blue,
@@ -121,45 +126,152 @@ static void enter_macro_expansion(macro_expansion_state_t *state,
} }
// 离开宏展开（开始重新扫描） // 离开宏展开（开始重新扫描）
static void leave_macro_expansion(macro_expansion_state_t *state, static void leave_macro_expansion(scc_expansion_ctx_t *state,
scc_pp_macro_t *macro) { scc_pp_macro_t *macro) {
// 从活动宏移除，添加到禁用宏 // 从活动宏移除，添加到禁用宏
scc_pp_macro_table_remove(&state->painted_blue, &macro->name); scc_pp_macro_table_remove(&state->painted_blue, &macro->name);
} }
// 检查是否可以展开 // 检查是否可以展开
static cbool can_expand_macro(macro_expansion_state_t *state, static cbool can_expand_macro(scc_expansion_ctx_t *state,
scc_pp_macro_t *macro) { scc_pp_macro_t *macro) {
return scc_pp_macro_table_get(&state->painted_blue, &macro->name) == null; return scc_pp_macro_table_get(&state->painted_blue, &macro->name) == null;
} }
static cbool _scc_pp_expand_macro(scc_probe_stream_t *stream, typedef struct {
macro_expansion_state_t *state, scc_cstring_t identifier;
scc_probe_stream_t **out_stream); scc_pp_macro_list_t args;
} scc_expand_unit_t;
static cbool expanded_buffer(const scc_cstring_t *in, scc_cstring_t *out, void scc_pp_parse_expand_macro(scc_probe_stream_t *stream, scc_pos_t *pos,
macro_expansion_state_t *state) { scc_expand_unit_t *unit) {
scc_probe_stream_t *in_stream = scc_mem_probe_stream_new( Assert(stream != null && pos != null && unit != null);
// TODO Assert empty unit
scc_cstring_init(&unit->identifier);
scc_vec_init(unit->args);
cbool ret = scc_lex_parse_identifier(stream, pos, &unit->identifier);
Assert(ret == true);
scc_probe_stream_sync(stream);
do {
if (scc_lex_parse_is_whitespace(scc_probe_stream_peek(stream))) {
scc_lex_parse_skip_whitespace(stream, pos);
}
if (scc_probe_stream_peek(stream) != '(') {
// TODO maybe error
// 因为没能正确表述空值
break;
}
// TODO maybe like f()() => maybe twice expand
ret = scc_pp_parse_macro_arguments(stream, &unit->args);
scc_probe_stream_sync(stream);
Assert(ret == true);
} while (0);
}
static cbool expand_buffer(const scc_cstring_t *in, scc_cstring_t *out,
scc_expansion_ctx_t *state);
static inline void args2str_append(const scc_pp_macro_list_t *args,
scc_cstring_t *out) {
Assert(args != null);
if (args->size != 0) {
scc_cstring_append_ch(out, '(');
for (usize i = 0; i < args->size; ++i) {
scc_cstring_append(out, &scc_vec_at(*args, i));
if (i != args->size - 1) {
scc_cstring_append_ch(out, ',');
scc_cstring_append_ch(out, ' ');
}
}
scc_cstring_append_ch(out, ')');
}
}
static cbool expand_macro(const scc_expand_unit_t *unit, scc_cstring_t *out,
scc_expansion_ctx_t *state) {
scc_pp_macro_t *macro =
scc_pp_macro_table_get(state->macros, &unit->identifier);
if (macro == null) {
scc_cstring_append(out, &unit->identifier);
args2str_append(&unit->args, out);
return true;
}
cbool ret;
if (macro->type == SCC_PP_MACRO_OBJECT) {
if (can_expand_macro(state, macro)) {
ret = scc_pp_expand_object_macro(macro, out);
Assert(ret == true);
args2str_append(&unit->args, out);
} else {
scc_cstring_append(out, &macro->name);
args2str_append(&unit->args, out);
return true;
}
} else if (macro->type == SCC_PP_MACRO_FUNCTION) {
/**
* 1. 参数先展开
* 2. 替换后重扫描
* 3. 蓝色集合中不展开
* 4. #, ## 不展开
* 5. 最后的括号要检查
*/
scc_pp_macro_list_t expanded_params;
scc_vec_init(expanded_params);
// expand params fisrt and recursive
for (usize i = 0; i < unit->args.size; ++i) {
scc_cstring_t param = scc_vec_at(unit->args, i);
scc_cstring_t out = scc_cstring_create();
expand_buffer(&param, &out, state);
scc_vec_push(expanded_params, out);
}
if (can_expand_macro(state, macro)) {
ret = scc_pp_expand_function_macro(macro, &unit->args,
&expanded_params, out);
Assert(ret == true);
} else {
scc_cstring_append(out, &macro->name);
args2str_append(&expanded_params, out);
return true;
}
// TODO memory leak
} else {
UNREACHABLE();
}
// 重新扫描展开结果
scc_cstring_t rescanned = scc_cstring_create();
enter_macro_expansion(state, macro);
expand_buffer(out, &rescanned, state);
leave_macro_expansion(state, macro);
scc_cstring_free(out);
*out = rescanned;
return true;
}
static cbool expand_buffer(const scc_cstring_t *in, scc_cstring_t *out,
scc_expansion_ctx_t *state) {
scc_probe_stream_t *in_stream = scc_mem_probe_stream_alloc(
scc_cstring_as_cstr(in), scc_cstring_len(in), false); scc_cstring_as_cstr(in), scc_cstring_len(in), false);
// rescanning
int ch; int ch;
scc_pos_t pos;
scc_expand_unit_t unit;
while ((ch = scc_probe_stream_peek(in_stream)) != scc_stream_eof) { while ((ch = scc_probe_stream_peek(in_stream)) != scc_stream_eof) {
if (scc_lex_parse_is_identifier_prefix(ch)) { if (scc_lex_parse_is_identifier_prefix(ch)) {
// 递归检查 // 递归检查
scc_probe_stream_t *out_stream; scc_cstring_t expanded_buffer = scc_cstring_create();
if (_scc_pp_expand_macro(in_stream, state, &out_stream) == false) { scc_pp_parse_expand_macro(in_stream, &pos, &unit);
scc_cstring_free(out); scc_probe_stream_reset(in_stream);
if (expand_macro(&unit, &expanded_buffer, state) == false) {
scc_cstring_free(&expanded_buffer);
return false; return false;
} else {
scc_cstring_append(out, &expanded_buffer);
scc_cstring_free(&expanded_buffer);
} }
Assert(out_stream != null);
while (scc_probe_stream_peek(out_stream) != scc_stream_eof) {
scc_cstring_append_ch(out,
scc_probe_stream_consume(out_stream));
}
Assert(out_stream != null && out_stream->drop != null);
scc_probe_stream_drop(out_stream);
} else { } else {
scc_cstring_append_ch(out, scc_probe_stream_consume(in_stream)); scc_cstring_append_ch(out, scc_probe_stream_consume(in_stream));
} }
@@ -169,128 +281,134 @@ static cbool expanded_buffer(const scc_cstring_t *in, scc_cstring_t *out,
return true; return true;
} }
/** // static cbool scc_pp_expand_macro_impl(scc_probe_stream_t *stream,
* 1. 参数先展开 // scc_expansion_ctx_t *ctx, scc_pos_t
* 2. 替换后重扫描 // *pos, scc_cstring_t *output) {
* 3. 蓝色集合中不展开 // // TODO self position and it maybe is a stack on #include ?
* 4. #, ## 不展开 // // 递归扫描
* 5. 最后的括号要检查 // if (ctx->depth-- <= 0) {
*/ // scc_cstring_free(output);
static cbool _scc_pp_expand_macro(scc_probe_stream_t *stream, // return false;
macro_expansion_state_t *state, // }
scc_probe_stream_t **out_stream) { // cbool ret;
// TODO self position and it maybe is a stack on #include ? // scc_pp_macro_table_t *macros = ctx->macros;
// 递归扫描
if (state->depth-- <= 0) {
*out_stream = null;
return false;
}
scc_pp_macro_table_t *macros = state->macros;
scc_cstring_t identifier = scc_cstring_new();
scc_pos_t pos = scc_pos_init();
cbool ret; // scc_cstring_t identifier = scc_cstring_create();
ret = scc_lex_parse_identifier(stream, &pos, &identifier); // ret = scc_lex_parse_identifier(stream, pos, &identifier);
Assert(ret == true); // Assert(ret == true);
scc_pp_macro_t *macro = scc_pp_macro_table_get(macros, &identifier); // scc_pp_macro_t *macro = scc_pp_macro_table_get(macros, &identifier);
// 1. 不是宏，直接输出标识符 // // 1. 不是宏，直接输出标识符
if (macro == null) { // if (macro == null) {
// 不是宏，直接输出 // // 不是宏，直接输出
usize length = scc_cstring_len(&identifier); // usize length = scc_cstring_len(&identifier);
*out_stream = scc_mem_probe_stream_new( // *out_stream = scc_mem_probe_stream_alloc(
scc_cstring_move_cstr(&identifier), length, true); // scc_cstring_move_cstr(&identifier), length, true);
return true; // return true;
} else { // } else {
scc_cstring_free(&identifier); // scc_cstring_free(&identifier);
} // }
// 收集参数（如果是函数宏） // // 收集参数（如果是函数宏）
scc_pp_macro_list_t params; // scc_pp_macro_list_t params;
scc_vec_init(params); // scc_pp_macro_list_t expanded_params;
if (macro->type == SCC_PP_MACRO_FUNCTION) { // scc_vec_init(params);
// TODO when expand need check another func with () at the end // scc_vec_init(expanded_params);
scc_lex_parse_skip_whitespace(stream, &pos); // if (macro->type == SCC_PP_MACRO_FUNCTION) {
if (scc_probe_stream_peek(stream) != '(') { // // TODO when expand need check another func with () at the end
goto ORIGIN; // scc_lex_parse_skip_whitespace(stream, &pos);
} // if (scc_probe_stream_peek(stream) != '(') {
ret = scc_pp_parse_macro_arguments(stream, &params); // goto ORIGIN;
Assert(ret == true); // }
} // ret = scc_pp_parse_macro_arguments(stream, &params);
// Assert(ret == true);
// 2. 检查到重复展开跳过 // // expand params fisrt and recursive
// 检查是否可以展开 // for (usize i = 0; i < params.size; ++i) {
if (!can_expand_macro(state, macro)) { // scc_cstring_t param = scc_vec_at(params, i);
ORIGIN: // scc_cstring_t out = scc_cstring_create();
// 输出原始调用 // expand_buffer(&param, &out, ctx);
scc_cstring_t original = scc_cstring_new(); // scc_vec_push(expanded_params, out);
scc_cstring_append(&original, &macro->name); // }
if (macro->type == SCC_PP_MACRO_FUNCTION && params.size != 0) { // }
scc_cstring_append_ch(&original, '(');
for (usize i = 0; i < params.size; ++i) {
scc_cstring_append(&original, &scc_vec_at(params, i));
if (i != params.size - 1) {
scc_cstring_append_ch(&original, ',');
scc_cstring_append_ch(&original, ' ');
}
}
scc_cstring_append_ch(&original, ')');
}
*out_stream = scc_mem_probe_stream_new(
scc_cstring_as_cstr(&original), scc_cstring_len(&original), true);
scc_vec_free(params);
return true;
}
// 开始展开 // // 2. 检查到重复展开跳过
scc_cstring_t expanded = scc_cstring_new(); // // 检查是否可以展开
if (macro->type == SCC_PP_MACRO_OBJECT) { // if (!can_expand_macro(ctx, macro)) {
ret = scc_pp_expand_object_macro(macro, &expanded); // ORIGIN:
Assert(ret == true); // // 输出原始调用
goto RESCANNING; // scc_cstring_t original = scc_cstring_create();
} else if (macro->type != SCC_PP_MACRO_FUNCTION) { // scc_cstring_append(&original, &macro->name);
TODO(); // if (macro->type == SCC_PP_MACRO_FUNCTION && expanded_params.size !=
} // 0) {
// scc_cstring_append_ch(&original, '(');
// for (usize i = 0; i < expanded_params.size; ++i) {
// scc_cstring_append(&original, &scc_vec_at(expanded_params,
// i)); if (i != expanded_params.size - 1) {
// scc_cstring_append_ch(&original, ',');
// scc_cstring_append_ch(&original, ' ');
// }
// }
// scc_cstring_append_ch(&original, ')');
// }
// *out_stream = scc_mem_probe_stream_alloc(
// scc_cstring_as_cstr(&original), scc_cstring_len(&original),
// true);
// scc_vec_free(params);
// scc_vec_free(expanded_params);
// return true;
// }
Assert(macro->type == SCC_PP_MACRO_FUNCTION); // // 开始展开
// scc_cstring_t expanded = scc_cstring_create();
// if (macro->type == SCC_PP_MACRO_OBJECT) {
// ret = scc_pp_expand_object_macro(macro, &expanded);
// Assert(ret == true);
// } else if (macro->type == SCC_PP_MACRO_FUNCTION) {
// ret = scc_pp_expand_function_macro(macro, &params, &expanded_params,
// &expanded);
// Assert(ret == true);
// } else {
// UNREACHABLE();
// }
scc_pp_macro_list_t expanded_params; // // 重新扫描展开结果
scc_vec_init(expanded_params); // // 将展开内容变换成stream并递归展开
// expand params fisrt and recursive // scc_cstring_t rescanned = scc_cstring_create();
for (usize i = 0; i < params.size; ++i) { // enter_macro_expansion(ctx, macro);
scc_cstring_t param = scc_vec_at(params, i); // expand_buffer(&expanded, &rescanned, ctx);
scc_cstring_t out = scc_cstring_new(); // leave_macro_expansion(ctx, macro);
expanded_buffer(&param, &out, state);
scc_vec_push(expanded_params, out);
}
ret = scc_pp_expand_function_macro(macro, &params, &expanded_params,
&expanded);
Assert(ret == true);
RESCANNING: // scc_cstring_free(&expanded);
// 重新扫描展开结果 // // TODO memory leak
// 将展开内容变换成stream并递归展开
scc_cstring_t rescanned = scc_cstring_new();
enter_macro_expansion(state, macro);
expanded_buffer(&expanded, &rescanned, state);
leave_macro_expansion(state, macro);
scc_cstring_free(&expanded); // *out_stream = scc_mem_probe_stream_alloc(scc_cstring_as_cstr(&rescanned),
*out_stream = scc_mem_probe_stream_new(scc_cstring_as_cstr(&rescanned), // scc_cstring_len(&rescanned),
scc_cstring_len(&rescanned), true); // true);
return true; // return true;
} // }
cbool scc_pp_expand_macro(scc_probe_stream_t *stream, cbool scc_pp_expand_macro(scc_probe_stream_t *stream,
scc_pp_macro_table_t *macros, scc_pp_macro_table_t *macros,
scc_probe_stream_t **out_stream, int depth) { scc_probe_stream_t **out_stream, int depth) {
Assert(depth > 0 && stream != null && macros != null && out_stream != null); Assert(depth > 0 && stream != null && macros != null && out_stream != null);
macro_expansion_state_t state; scc_expansion_ctx_t state;
state.depth = depth; state.depth = depth;
scc_pp_marco_table_init(&state.painted_blue); scc_pp_marco_table_init(&state.painted_blue);
state.macros = macros; state.macros = macros;
cbool ret = _scc_pp_expand_macro(stream, &state, out_stream); scc_cstring_t buffer = scc_cstring_create();
scc_pos_t pos;
// cbool ret = scc_pp_expand_macro_impl(stream, &state, &pos, &buffer);
// expand_buffer(stream, &buffer, &state);
scc_expand_unit_t unit;
scc_pp_parse_expand_macro(stream, &pos, &unit);
scc_probe_stream_reset(stream);
expand_macro(&unit, &buffer, &state);
*out_stream = scc_mem_probe_stream_alloc(scc_cstring_as_cstr(&buffer),
scc_cstring_len(&buffer), true);
scc_pp_macro_table_drop(&state.painted_blue); scc_pp_macro_table_drop(&state.painted_blue);
return ret; return true;
} }

2
libs/pprocessor/src/macro.c
View File

@@ -100,7 +100,7 @@ scc_pp_macro_t *scc_pp_macro_table_set(scc_pp_macro_table_t *pp,
// 查找宏定义 // 查找宏定义
scc_pp_macro_t *scc_pp_macro_table_get(scc_pp_macro_table_t *pp, scc_pp_macro_t *scc_pp_macro_table_get(scc_pp_macro_table_t *pp,
scc_cstring_t *name) { const scc_cstring_t *name) {
return scc_hashtable_get(&pp->table, name); return scc_hashtable_get(&pp->table, name);
} }

61
libs/pprocessor/src/parse.c
View File

@@ -51,19 +51,19 @@ static inline void try_to_cut_list(scc_pp_macro_list_t *list,
scc_cstring_t *buff) { scc_cstring_t *buff) {
if (scc_cstring_len(buff) != 0) { if (scc_cstring_len(buff) != 0) {
scc_vec_push(*list, *buff); scc_vec_push(*list, *buff);
*buff = scc_cstring_new(); *buff = scc_cstring_create();
} }
} }
cbool scc_pp_parse_macro_replace_list(scc_probe_stream_t *stream, cbool scc_pp_parse_macro_replace_list(scc_probe_stream_t *stream,
scc_pp_macro_list_t *list) { scc_pp_macro_list_t *list) {
Assert(stream != null && list != null); Assert(stream != null && list != null);
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
scc_vec_init(*list); scc_vec_init(*list);
scc_cstring_t replacement = scc_cstring_new(); scc_cstring_t replacement = scc_cstring_create();
int ch; int ch;
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
while ((ch = scc_probe_stream_peek(stream)) != scc_stream_eof) { while ((ch = scc_probe_stream_peek(stream)) != scc_stream_eof) {
if (scc_lex_parse_is_endline(ch)) { if (scc_lex_parse_is_endline(ch)) {
@@ -76,13 +76,13 @@ cbool scc_pp_parse_macro_replace_list(scc_probe_stream_t *stream,
try_to_cut_list(list, &replacement); try_to_cut_list(list, &replacement);
} else if (ch == '#') { } else if (ch == '#') {
// 处理 # 和 ## 操作符 // 处理 # 和 ## 操作符
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
try_to_cut_list(list, &replacement); try_to_cut_list(list, &replacement);
scc_cstring_append_ch(&replacement, '#'); scc_cstring_append_ch(&replacement, '#');
if (scc_probe_stream_peek(stream) == '#') { if (scc_probe_stream_peek(stream) == '#') {
// ## 连接操作符 // ## 连接操作符
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_cstring_append_ch(&replacement, '#'); scc_cstring_append_ch(&replacement, '#');
} }
// 我需要尽可能防止空白字符干扰解析 // 我需要尽可能防止空白字符干扰解析
@@ -94,14 +94,14 @@ cbool scc_pp_parse_macro_replace_list(scc_probe_stream_t *stream,
scc_cstring_append_ch(&replacement, ' '); scc_cstring_append_ch(&replacement, ' ');
try_to_cut_list(list, &replacement); try_to_cut_list(list, &replacement);
} else { } else {
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
scc_cstring_append_ch(&replacement, (char)ch); scc_cstring_append_ch(&replacement, (char)ch);
} }
} }
if (scc_cstring_len(&replacement) != 0) { if (scc_cstring_len(&replacement) != 0) {
scc_vec_push(*list, replacement); scc_vec_push(*list, replacement);
replacement = scc_cstring_new(); replacement = scc_cstring_create();
} }
// for (usize i = 0; i < list->size; ++i) { // for (usize i = 0; i < list->size; ++i) {
@@ -118,18 +118,18 @@ cbool scc_pp_parse_macro_arguments(scc_probe_stream_t *stream,
scc_vec_init(*args); scc_vec_init(*args);
int ch; int ch;
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
// 跳过 '(' // 跳过 '('
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
if (ch != '(') { if (ch != '(') {
return false; return false;
} }
scc_probe_stream_consume(stream); // 消费 '(' scc_probe_stream_next(stream); // 消费 '('
int paren_depth = 1; int paren_depth = 1;
scc_cstring_t current_arg = scc_cstring_new(); scc_cstring_t current_arg = scc_cstring_create();
scc_pos_t pos = scc_pos_init(); scc_pos_t pos = scc_pos_create();
while (paren_depth > 0) { while (paren_depth > 0) {
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
@@ -142,23 +142,23 @@ cbool scc_pp_parse_macro_arguments(scc_probe_stream_t *stream,
if (ch == '(') { if (ch == '(') {
paren_depth++; paren_depth++;
scc_cstring_append_ch(&current_arg, (char)ch); scc_cstring_append_ch(&current_arg, (char)ch);
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
} else if (ch == ')') { } else if (ch == ')') {
paren_depth--; paren_depth--;
if (paren_depth > 0) { if (paren_depth > 0) {
scc_cstring_append_ch(&current_arg, (char)ch); scc_cstring_append_ch(&current_arg, (char)ch);
} }
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
} else if (ch == ',' && paren_depth == 1) { } else if (ch == ',' && paren_depth == 1) {
// 参数分隔符 // 参数分隔符
scc_vec_push(*args, current_arg); scc_vec_push(*args, current_arg);
current_arg = scc_cstring_new(); current_arg = scc_cstring_create();
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
// 跳过参数后的空白 // 跳过参数后的空白
scc_lex_parse_skip_whitespace(stream, &pos); scc_lex_parse_skip_whitespace(stream, &pos);
} else { } else {
scc_cstring_append_ch(&current_arg, (char)ch); scc_cstring_append_ch(&current_arg, (char)ch);
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
} }
} }
@@ -175,7 +175,7 @@ cbool scc_pp_parse_macro_arguments(scc_probe_stream_t *stream,
static cbool safe_skip_backspace_if_endline(scc_probe_stream_t *stream, static cbool safe_skip_backspace_if_endline(scc_probe_stream_t *stream,
scc_pos_t *pos) { scc_pos_t *pos) {
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
// FIXME maybe it not correct // FIXME maybe it not correct
while (ch == '\r' || ch == '\n' || ch == ' ' || ch == '\t') { while (ch == '\r' || ch == '\n' || ch == ' ' || ch == '\t') {
@@ -183,10 +183,10 @@ static cbool safe_skip_backspace_if_endline(scc_probe_stream_t *stream,
scc_lex_parse_skip_endline(stream, pos); scc_lex_parse_skip_endline(stream, pos);
return true; return true;
} }
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
} }
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
return false; return false;
} }
@@ -194,19 +194,19 @@ void scc_pp_parse_directive(scc_probe_stream_t *stream, scc_pos_t *pos,
scc_pp_macro_table_t *macros) { scc_pp_macro_table_t *macros) {
Assert(stream != null); Assert(stream != null);
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
// 跳过 '#' 和后续空白 // 跳过 '#' 和后续空白
if (scc_probe_stream_peek(stream) != '#') { if (scc_probe_stream_peek(stream) != '#') {
LOG_WARN("Invalid directive"); LOG_WARN("Invalid directive");
return; return;
} }
scc_pos_next(pos); scc_pos_next(pos);
scc_probe_stream_consume(stream); scc_probe_stream_next(stream);
if (safe_skip_backspace_if_endline(stream, pos)) if (safe_skip_backspace_if_endline(stream, pos))
return; return;
// 解析指令名称 // 解析指令名称
scc_cstring_t directive = scc_cstring_new(); scc_cstring_t directive = scc_cstring_create();
if (!scc_lex_parse_identifier(stream, pos, &directive)) { if (!scc_lex_parse_identifier(stream, pos, &directive)) {
goto ERR; goto ERR;
} }
@@ -216,16 +216,15 @@ void scc_pp_parse_directive(scc_probe_stream_t *stream, scc_pos_t *pos,
scc_pp_token_t token = keyword_cmp(scc_cstring_as_cstr(&directive), scc_pp_token_t token = keyword_cmp(scc_cstring_as_cstr(&directive),
scc_cstring_len(&directive)); scc_cstring_len(&directive));
scc_cstring_t name = scc_cstring_new(); scc_cstring_t name = scc_cstring_create();
switch (token) { switch (token) {
case SCC_PP_TOK_DEFINE: { case SCC_PP_TOK_DEFINE: {
if (!scc_lex_parse_identifier(stream, pos, &name)) { if (!scc_lex_parse_identifier(stream, pos, &name)) {
scc_cstring_free(&name);
goto ERR; goto ERR;
} }
// 检查是否是函数宏：宏名后是否直接跟着 '('（没有空白字符） // 检查是否是函数宏：宏名后是否直接跟着 '('（没有空白字符）
scc_probe_stream_reset(stream); // scc_probe_stream_reset(stream);
int ch = scc_probe_stream_peek(stream); int ch = scc_probe_stream_peek(stream);
cbool has_whitespace = scc_lex_parse_is_whitespace(ch); cbool has_whitespace = scc_lex_parse_is_whitespace(ch);
if (has_whitespace && safe_skip_backspace_if_endline(stream, pos)) { if (has_whitespace && safe_skip_backspace_if_endline(stream, pos)) {
@@ -241,7 +240,7 @@ void scc_pp_parse_directive(scc_probe_stream_t *stream, scc_pos_t *pos,
ch = scc_probe_stream_peek(stream); ch = scc_probe_stream_peek(stream);
if (ch == ')') { if (ch == ')') {
scc_probe_stream_consume(stream); // 消费 ')' scc_probe_stream_next(stream); // 消费 ')'
} }
if (safe_skip_backspace_if_endline(stream, pos)) { if (safe_skip_backspace_if_endline(stream, pos)) {
goto FREE; goto FREE;
@@ -256,13 +255,12 @@ void scc_pp_parse_directive(scc_probe_stream_t *stream, scc_pos_t *pos,
scc_pp_parse_macro_replace_list(stream, &replacement); scc_pp_parse_macro_replace_list(stream, &replacement);
scc_pp_add_object_macro(macros, &name, &replacement); scc_pp_add_object_macro(macros, &name, &replacement);
} }
scc_cstring_free(&name);
break; break;
} }
case SCC_PP_TOK_UNDEF: { case SCC_PP_TOK_UNDEF: {
if (scc_lex_parse_identifier(stream, pos, &name)) { if (scc_lex_parse_identifier(stream, pos, &name)) {
// TODO ret value cbool ret = scc_pp_macro_table_remove(macros, &name);
scc_pp_macro_table_remove(macros, &name); Assert(ret == true);
} }
break; break;
} }
@@ -279,9 +277,10 @@ void scc_pp_parse_directive(scc_probe_stream_t *stream, scc_pos_t *pos,
case SCC_PP_TOK_EMBED: case SCC_PP_TOK_EMBED:
case SCC_PP_TOK_ERROR: case SCC_PP_TOK_ERROR:
case SCC_PP_TOK_WARNING: case SCC_PP_TOK_WARNING:
case SCC_PP_TOK_PRAMA: case SCC_PP_TOK_PRAGMA:
// 暂时跳过这一行 // 暂时跳过这一行
scc_lex_parse_skip_line(stream, pos); scc_lex_parse_skip_line(stream, pos);
TODO();
break; break;
default: default:
LOG_WARN("Unknown preprocessor directive: %s", LOG_WARN("Unknown preprocessor directive: %s",

7
libs/pprocessor/src/pprocessor.c
View File

@@ -32,6 +32,7 @@ RETRY:
if (ch == '#') { if (ch == '#') {
scc_pp_parse_directive(stream->input, &stream->pos, scc_pp_parse_directive(stream->input, &stream->pos,
&stream->self->macro_table); &stream->self->macro_table);
scc_probe_stream_sync(stream->input);
goto RETRY; goto RETRY;
} else if (scc_lex_parse_is_identifier_prefix(ch)) { } else if (scc_lex_parse_is_identifier_prefix(ch)) {
cbool ret = cbool ret =
@@ -44,9 +45,13 @@ RETRY:
} else if (scc_probe_stream_next(stream->input) == '/') { } else if (scc_probe_stream_next(stream->input) == '/') {
ch = scc_probe_stream_peek(stream->input); ch = scc_probe_stream_peek(stream->input);
if (ch == '/') { if (ch == '/') {
scc_probe_stream_reset(stream->input);
scc_lex_parse_skip_line(stream->input, &stream->pos); scc_lex_parse_skip_line(stream->input, &stream->pos);
scc_probe_stream_sync(stream->input);
} else if (ch == '*') { } else if (ch == '*') {
scc_probe_stream_reset(stream->input);
scc_lex_parse_skip_block_comment(stream->input, &stream->pos); scc_lex_parse_skip_block_comment(stream->input, &stream->pos);
scc_probe_stream_sync(stream->input);
} }
} }
@@ -81,7 +86,7 @@ static scc_probe_stream_t *pp_stream_init(scc_pproc_t *self,
stream->input = input; stream->input = input;
stream->tmp_stream = null; stream->tmp_stream = null;
stream->pos = scc_pos_init(); stream->pos = scc_pos_create();
stream->stream.name = scc_cstring_from_cstr("pp_stream"); stream->stream.name = scc_cstring_from_cstr("pp_stream");
stream->stream.consume = pp_stream_read_char; stream->stream.consume = pp_stream_read_char;

35
libs/pprocessor/tests/test_unit.c
View File

@@ -15,7 +15,7 @@ static cbool process_input(const char *input, scc_cstring_t *output) {
// 获取输出结果 // 获取输出结果
int ch; int ch;
*output = scc_cstring_new(); *output = scc_cstring_create();
while (1) { while (1) {
ch = scc_probe_stream_consume(output_stream); ch = scc_probe_stream_consume(output_stream);
if (ch == scc_stream_eof) { if (ch == scc_stream_eof) {
@@ -104,6 +104,17 @@ static void test_define_nested_macros(void) {
"((1 + 1) + 1)\n"); "((1 + 1) + 1)\n");
} }
static void test_undef_macros(void) {
TEST_CASE("test_undef_macros");
CHECK_PP_OUTPUT_EXACT("#define x 1\n"
"x\n"
"#undef x\n"
"x\n"
"#define x 2\n"
"x\n",
"1\nx\n2\n");
}
static void hard_test_define_func_macros(void) { static void hard_test_define_func_macros(void) {
TEST_CASE("func_macros_hard with pp_01"); TEST_CASE("func_macros_hard with pp_01");
CHECK_PP_OUTPUT_EXACT("#define hash_hash # ## #\n" CHECK_PP_OUTPUT_EXACT("#define hash_hash # ## #\n"
@@ -139,6 +150,27 @@ static void hard_test_define_func_macros(void) {
"#define M3(x) x\n" "#define M3(x) x\n"
"M3(M3(M2)(0))\n", "M3(M3(M2)(0))\n",
"M1(0 + 1)\n"); "M1(0 + 1)\n");
TEST_CASE("TODO");
CHECK_PP_OUTPUT_EXACT("#define str(x) # x\n"
"str()\n",
"\"\"\n");
TEST_CASE("TODO");
CHECK_PP_OUTPUT_EXACT("#define x 1\n"
"#define f(a) f(x * (a))\n"
"f(0)\n"
"f(x)",
"f(1 * (0))\n"
"f(1 * (1))");
CHECK_PP_OUTPUT_EXACT("#define x x(0)\n"
"#define f(a) f(x * (a))\n"
"f(f(0))\n"
"f(f(x))\n"
"f(f(a))\n",
"f(x(0) * (f(x(0) * (0))))\n"
"f(x(0) * (f(x(0) * (x(0)))))\n"
"f(x(0) * (f(x(0) * (a))))\n");
} }
static void test_conditional_compilation(void) { static void test_conditional_compilation(void) {
@@ -177,6 +209,7 @@ TEST_LIST = {
TEST_LIST_CASE(test_define_stringify_operator), TEST_LIST_CASE(test_define_stringify_operator),
TEST_LIST_CASE(test_define_concat_operator), TEST_LIST_CASE(test_define_concat_operator),
TEST_LIST_CASE(test_define_nested_macros), TEST_LIST_CASE(test_define_nested_macros),
TEST_LIST_CASE(test_undef_macros),
TEST_LIST_CASE(hard_test_define_func_macros), TEST_LIST_CASE(hard_test_define_func_macros),
{NULL, NULL}, {NULL, NULL},
}; };

4
runtime/libcore/include/core_pos.h
View File

@@ -10,8 +10,8 @@ typedef struct scc_pos {
usize offset; usize offset;
} scc_pos_t; } scc_pos_t;
static inline scc_pos_t scc_pos_init() { static inline scc_pos_t scc_pos_create() {
return (scc_pos_t){scc_cstring_new(), 1, 1, 0}; return (scc_pos_t){scc_cstring_create(), 1, 1, 0};
} }
static inline void scc_pos_next(scc_pos_t *pos) { static inline void scc_pos_next(scc_pos_t *pos) {

12
runtime/libcore/include/core_str.h
View File

@@ -20,11 +20,17 @@ typedef struct scc_cstring {
* *
* @return cstring_t 初始化后的对象 * @return cstring_t 初始化后的对象
*/ */
// FIXME need using `init` beacuse it not malloc static inline scc_cstring_t scc_cstring_create(void) {
static inline scc_cstring_t scc_cstring_new(void) {
return (scc_cstring_t){.data = null, .size = 0, .cap = 0}; return (scc_cstring_t){.data = null, .size = 0, .cap = 0};
} }
static inline void scc_cstring_init(scc_cstring_t *string) {
Assert(string != null);
string->data = null;
string->size = 0;
string->cap = 0;
}
/** /**
* @brief 从 C 风格字符串创建一个动态字符串副本 * @brief 从 C 风格字符串创建一个动态字符串副本
* *
@@ -33,7 +39,7 @@ static inline scc_cstring_t scc_cstring_new(void) {
*/ */
static inline scc_cstring_t scc_cstring_from_cstr(const char *s) { static inline scc_cstring_t scc_cstring_from_cstr(const char *s) {
if (s == null) { if (s == null) {
return scc_cstring_new(); return scc_cstring_create();
} }
usize len = 0; usize len = 0;

4
runtime/libcore/include/core_stream.h
View File

@@ -123,8 +123,8 @@ scc_probe_stream_t *scc_mem_probe_stream_init(scc_mem_probe_stream_t *stream,
* @param owned 是否拥有数据（如果拥有将会自动释放） * @param owned 是否拥有数据（如果拥有将会自动释放）
* @return scc_probe_stream_t* * @return scc_probe_stream_t*
*/ */
scc_probe_stream_t *scc_mem_probe_stream_new(const char *data, usize length, scc_probe_stream_t *scc_mem_probe_stream_alloc(const char *data, usize length,
cbool owned); cbool owned);
#endif #endif
#endif /* __SMCC_CORE_PROBE_STREAM_H__ */ #endif /* __SMCC_CORE_PROBE_STREAM_H__ */

4
runtime/libcore/src/stream.c
View File

@@ -164,8 +164,8 @@ static void scc_owned_mem_stream_drop(scc_probe_stream_t *_stream) {
scc_free(stream); scc_free(stream);
} }
scc_probe_stream_t *scc_mem_probe_stream_new(const char *data, usize length, scc_probe_stream_t *scc_mem_probe_stream_alloc(const char *data, usize length,
cbool owned) { cbool owned) {
scc_mem_probe_stream_t *stream = scc_mem_probe_stream_t *stream =
(scc_mem_probe_stream_t *)scc_malloc(sizeof(scc_mem_probe_stream_t)); (scc_mem_probe_stream_t *)scc_malloc(sizeof(scc_mem_probe_stream_t));
if (stream == null) { if (stream == null) {