feat(pproc): 改进宏处理器以支持括号嵌套和GNU扩展

- 实现了括号深度跟踪来正确分割带括号的宏参数
- 添加了对 GNU 扩展中 `##` 操作符逗号删除的支持
- 新增辅助函数 `got_left_non_blank` 和 `got_right_non_blank`
  来优化查找非空白 token 的逻辑
- 改进了错误消息以显示预期但得到的实际值类型

fix(pproc): 修复条件编译和包含文件路径的错误消息

- 在 `scc_pproc_parse_if_condition` 中改进错误消息格式
- 修复 `switch_file_stack` 函数中的日志字符串格式问题

test(pproc): 添加宏处理相关的单元测试

- 增加了连接操作符、嵌套宏、括号处理等测试用例
- 添加了 C99 标准示例和 GNU 变参宏删除逗号的测试
- 包含了复杂的宏展开场景测试

chore(justfile): 更新构建脚本添加调试目标

- 为 `test-scc` 目标添加了 `debug-scc` 调试版本
- 更新构建命令以支持开发模式

feat(cbuild): 添加 dry-run 模式和改进编译器参数

- 为编译器类添加 dry-run 功能,只打印命令不执行
- 改进 scc 编译器的包含路径处理逻辑
- 为命令行解析器添加 dry-run 参数选项

refactor(log): 重命名 static_assert 为 StaticAssert 避免冲突

- 为了避免与标准库冲突,将自定义 static_assert 重命名为 StaticAssert

style(scc_core): 移除未使用的预定义宏定义

- 删除了不再需要的基础类型前缀宏定义

fix(scc_core): 初始化 ring 测试中的未初始化变量

- 为测试函数中的字符变量添加初始化值避免未定义行为
This commit is contained in:
zzy
2026-02-21 23:53:44 +08:00
parent 3b2f68111e
commit 51869bf081
9 changed files with 272 additions and 112 deletions

View File

@@ -132,6 +132,35 @@ static void test_define_nested_macros(void) {
CHECK_PP_OUTPUT_EXACT(" # define A 1\nA", "1");
// CHECK_PP_OUTPUT_EXACT(" # define A 1 \nA", "1"); // TODO
CHECK_PP_OUTPUT_EXACT("#define CONCAT(str) __scc_##str\nCONCAT(int)",
"__scc_int");
CHECK_PP_OUTPUT_EXACT("#define CONCAT(str) str##_scc__\nCONCAT(int)",
"int_scc__");
CHECK_PP_OUTPUT_EXACT("#define CONCAT(str) __scc_ ## str\nCONCAT(int)",
"__scc_int");
// TEST_CASE("TODO"); /*FALSE*/
// 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_undef_macros(void) {
@@ -181,33 +210,19 @@ static void hard_test_define_func_macros(void) {
"M3(M3(M2)(0))\n",
"M1(0 + 1)\n");
// TEST_CASE("TODO"); /*FALSE*/
// CHECK_PP_OUTPUT_EXACT("#define str(x) # x\n"
// "str()\n",
// "\"\"\n");
TEST_CASE("mulit braces");
CHECK_PP_OUTPUT_EXACT("#define MACRO(a, b, c) a, b, c\n"
"MACRO(1, (2,3), 4)\n",
"1, (2,3), 4\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) {
TEST_CASE("conditional compilation");
CHECK_PP_OUTPUT_EXACT("#if 1\ntrue\n#endif\n", "true\n");
CHECK_PP_OUTPUT_EXACT("#if 0\nfalse\n#endif\n", "");
CHECK_PP_OUTPUT_EXACT("#define FLAG 1\n#if FLAG\ntrue\n#endif\n", "true\n");
TEST_CASE("max_macro hard");
CHECK_PP_OUTPUT_EXACT("#define max(a, b) ((a) > (b) ? (a) : (b))\n"
"max(1, 2)\n",
"((1) > (2) ? (1) : (2))\n");
CHECK_PP_OUTPUT_EXACT("#define max(a, b) ((a) > (b) ? (a) : (b))\n"
"max(max(x, y), z)\n",
"((((x) > (y) ? (x) : (y))) > (z) ? (((x) > (y) ? "
"(x) : (y))) : (z))\n");
}
static void test_error_cases(void) {
@@ -406,6 +421,111 @@ static void test_variadic_macros(void) {
CHECK_PP_OUTPUT_EXACT("#define FOO(x, ...) x __VA_ARGS__\n"
"FOO(1)\n",
"1 \n");
CHECK_PP_OUTPUT_EXACT("#define FOO(x, ...) #__VA_ARGS__\nFOO(1);", "\"\";");
}
static void test_gnu_comma_variadic_deletion(void) {
TEST_CASE("GNU comma deletion with ## and __VA_ARGS__");
// 可变参数为空,逗号被删除
CHECK_PP_OUTPUT_EXACT("#define FOO(fmt, ...) printf(fmt, ## __VA_ARGS__)\n"
"FOO(\"hello\")\n",
"printf(\"hello\")\n");
// 可变参数非空,逗号保留
CHECK_PP_OUTPUT_EXACT("#define FOO(fmt, ...) printf(fmt, ## __VA_ARGS__)\n"
"FOO(\"%d\", 42)\n",
"printf(\"%d\",42)\n");
// 带空白变体
CHECK_PP_OUTPUT_EXACT("#define FOO(fmt,...) printf(fmt,##__VA_ARGS__)\n"
"FOO(\"%d\", 42)\n",
"printf(\"%d\",42)\n");
}
static void test_c99_docs(void) {
TEST_CASE("6.10.3.3 The ## operator EXAMPLE");
CHECK_PP_OUTPUT_EXACT("#define hash_hash # ## #\n"
"#define mkstr(a) # a\n"
"#define in_between(a) mkstr(a)\n"
"#define join(c, d) in_between(c hash_hash d)\n"
"char p[] = join(x, y);\n",
"char p[] = \"x ## y\";\n");
// 6.10.3.5 Scope of macrodefinitions
TEST_CASE("EXAMPLE 3 To illustrate the rules for redefinition and "
"reexamination, the sequence");
/*
CHECK_PP_OUTPUT_EXACT(
"#define x 3\n"
"#define f(a) f(x * (a))\n"
"#undef x\n"
"#define x 2\n"
"#define g f\n"
"#define z z[0]\n"
"#define h g(~\n"
"#define m(a) a(w)\n"
"#define w 0,1\n"
"#define t(a) a\n"
"#define p() int\n"
"#define q(x) x\n"
"#define r(x,y) x ## y\n"
"#define str(x) # x\n"
"f(y+1) + f(f(z)) % t(t(g)(0) + t)(1);\n"
"g(x+(3,4)-w) | h 5) & m\n"
" (f)^m(m);\n"
"p() i[q()] = { q(1), r(2,3), r(4,), r(,5), r(,) };\n"
"char c[2][6] = { str(hello), str() };\n",
"f(2 * (y+1)) + f(2 * (f(2 * (z[0])))) % f(2 * (0)) + t(1);\n"
"f(2 * (2+(3,4)-0,1)) | f(2 * (~ 5)) & f(2 * (0,1))^m(0,1);\n"
"int i[] = { 1, 23, 4, 5, };\n"
"char c[2][6] = { \"hello\", \"\" };\n");
*/
TEST_CASE("EXAMPLE 4 To illustrate the rules for creating character string "
"literals and concatenating tokens, the sequence");
TEST_CASE("EXAMPLE 5 To illustrate the rules for placemarker preprocessing "
"tokens, the sequence");
/*
CHECK_PP_OUTPUT_EXACT("#define t(x,y,z) x ## y ## z\n"
"int j[] = { t(1,2,3), t(,4,5), t(6,,7), t(8,9,),\n"
"\t\t\tt(10,,), t(,11,), t(,,12), t(,,) };\n",
"int j[] = { 123, 45, 67, 89,\n"
"\t\t\t10, 11, 12, };\n");
*/
TEST_CASE("EXAMPLE 6 To demonstrate the redefinition rules, the following "
"sequence is valid.");
CHECK_PP_OUTPUT_EXACT(
"#define OBJ_LIKE (1-1)\n"
"#define OBJ_LIKE /* white space */ (1-1) /* other */\n"
"#define FUNC_LIKE(a) (a)\n"
"#define FUNC_LIKE( a )( /* note the white space */ \\\n"
" a /* other stuffonthis line\n"
" */ )\n",
"");
// INVALID
// CHECK_PP_OUTPUT_EXACT(
// "#define OBJ_LIKE (0) // different token sequence\n"
// "#define OBJ_LIKE (1 - 1) // different white space\n"
// "#define FUNC_LIKE(b) ( a ) // different parameter usage\n"
// "#define FUNC_LIKE(b) ( b ) // different parameter spelling\n");
TEST_CASE("EXAMPLE 7 Finally,to show the variable argument list macro "
"facilities:");
CHECK_PP_OUTPUT_EXACT(
"#define debug(...) fprintf(stderr, __VA_ARGS__)\n"
"#define showlist(...) puts(#__VA_ARGS__)\n"
"#define report(test, ...) ((test)?puts(#test): \\\n"
" printf(__VA_ARGS__))\n"
"debug(\"Flag\");\n"
"debug(\"X = %d\\n\", x);\n"
"showlist(The first, second, and third items.);\n"
"report(x>y, \"x is %d but y is %d\", x, y);\n",
"fprintf(stderr, \"Flag\");\n"
"fprintf(stderr, \"X = %d\\n\", x);\n"
"puts(\"The first, second, and third items.\");\n"
"((x>y)?puts(\"x>y\"): printf(\"x is %d but y is %d\", x, y));\n");
}
#define TEST_LIST_CASE(func_name) {#func_name, func_name}
@@ -423,5 +543,8 @@ TEST_LIST = {
TEST_LIST_CASE(test_conditional_ifdef),
TEST_LIST_CASE(test_simple_number_conditional_if),
TEST_LIST_CASE(test_variadic_macros),
TEST_LIST_CASE(test_gnu_comma_variadic_deletion),
TEST_LIST_CASE(test_c99_docs),
{NULL, NULL},
};