Remove flags from build tool

build.bat

@@ -3,6 +3,4 @@ mkdir build
 cd build
 cl -Fe:bld.exe ../build_tool/main.cpp -FC -WX -W3 -wd4200 -diagnostics:column -nologo -Zi -D_CRT_SECURE_NO_WARNINGS
 cd ..
-rem build\bld.exe clear_cache
 build\bld.exe
-rem build\bld.exe cc=clang

build_file.cpp

@@ -58,7 +58,6 @@ int main(int argc, char **argv) {
             Array<S8_String> flags = {scratch};
             flags += "-g -Wno-write-strings";
             flags += "-fdiagnostics-absolute-paths";
-            flags += "-fsanitize=address";
             if (is_cpp) flags += "-fno-exceptions";
             if (is_cpp) flags += "-fno-rtti";
             if (is_cpp) flags += "-std=c++11";

build_tool/library.cpp

@@ -12,9 +12,8 @@
 #define AND_CL_STRING_TERMINATE_ON_NEW_LINE
 #include "../standalone_libraries/clexer.c"
 
-MA_Arena PernamentArena;
-MA_Arena *Perm = &PernamentArena;
-Table<S8_String> CMDLine;
+thread_local MA_Arena PernamentArena;
+thread_local MA_Arena *Perm = &PernamentArena;
 
 #include "cache.cpp"
 #include "easy_strings.cpp"

build_tool/main.cpp

@@ -7,15 +7,6 @@ int main(int argument_count, char **arguments) {
     IO_Printf("WORKING DIR: %.*s\n", S8_Expand(working_dir));
 
     Array<S8_String> cmd = CMD_Make(arguments, argument_count);
-    if (CMD_Match(cmd, "clear_cache")) {
-        for (OS_FileIter it = OS_IterateFiles(Perm, "./"); OS_IsValid(it); OS_Advance(&it)) {
-            if (!it.is_directory && S8_EndsWith(it.filename, ".cache", true)) {
-                OS_DeleteFile(it.absolute_path);
-            }
-        }
-        return 0;
-    }
-
     S8_String        cc  = CMD_Get(cmd, "cc", IF_WINDOWS("cl") IF_MAC("clang") IF_LINUX("gcc"));
 
     // Search for build file in the project directory
@@ -31,7 +22,6 @@ int main(int argument_count, char **arguments) {
             IO_Printf("Couldnt find build file in current dir: %.*s, exiting ... \n", S8_Expand(working_dir));
             IO_Printf("- Proper build file contains 'build_file.c' in it's name\n");
             IO_Printf("- Alternative compiler can be chosen like this: bld cc=clang\n");
-            IO_Printf("- Cache can be cleared like this: bld clear_cache\n");
             return 0;
         }
     }
@@ -48,28 +38,25 @@ int main(int argument_count, char **arguments) {
             Array<S8_String> flags = {Perm};
             flags += "-nologo -Zi";
             flags += "-WX -W3 -wd4200 -diagnostics:column";
-            flags += Fmt("/Fe:%.*s", S8_Expand(exe_name));
+            flags += Fmt("/Fe:%.*s /Fd:%.*s.pdb", S8_Expand(exe_name), S8_Expand(exe_name));
             result = Run(cc + build_file + flags);
-        }
-        else if (cc == "clang") {
+        } else if (cc == "clang") {
             Array<S8_String> flags = {Perm};
+            cc                     = "clang++";
+
             flags += "-std=c++11 -g";
             flags += "-fdiagnostics-absolute-paths";
             flags += "-Wno-writable-strings";
-            flags += "-fno-exceptions";
-            flags += "-fno-rtti";
             flags += "-lm";
             flags += Fmt("-o %.*s", S8_Expand(exe_name));
             result = Run(cc + build_file + flags);
-        }
-        else {
+        } else {
             IO_Assert(cc == "gcc");
+            cc = "g++";
 
             Array<S8_String> flags = {Perm};
             flags += "-std=c++11 -g";
             flags += "-Wno-write-strings";
-            flags += "-fno-exceptions";
-            flags += "-fno-rtti";
             flags += "-lm";
             flags += Fmt("-o %.*s", S8_Expand(exe_name));
             result = Run(cc + build_file + flags);
@@ -77,6 +64,7 @@ int main(int argument_count, char **arguments) {
 
         if (result != 0) {
             IO_Printf("FAILED compilation of the build file!\n");
+            OS_DeleteFile("build_tool.cache");
             return 1;
         }
         time = OS_GetTime() - time;
@@ -90,6 +78,7 @@ int main(int argument_count, char **arguments) {
         int result = Run(exe_name + cmd);
         if (result != 0) {
             IO_Printf("FAILED execution of the build file!\n");
+            OS_DeleteFile("build_tool.cache");
             return 1;
         }
     }

core/cmd.c

@@ -1,6 +1,6 @@
 
-CmdParser MakeCmdParser(MA_Arena *arena, int argc, char **argv) {
-    CmdParser result = {argc, argv, arena};
+CmdParser MakeCmdParser(MA_Arena *arena, int argc, char **argv, const char *custom_help) {
+    CmdParser result = {argc, argv, arena, custom_help};
     return result;
 }
 
@@ -13,6 +13,15 @@ void AddBool(CmdParser *p, bool *result, const char *name, const char *help) {
     SLL_QUEUE_ADD(p->fdecl, p->ldecl, decl);
 }
 
+void AddInt(CmdParser *p, int *result, const char *name, const char *help) {
+    CmdDecl *decl    = MA_PushStruct(p->arena, CmdDecl);
+    decl->kind       = CmdDeclKind_Int;
+    decl->name       = S8_MakeFromChar((char *)name);
+    decl->help       = S8_MakeFromChar((char *)help);
+    decl->int_result = result;
+    SLL_QUEUE_ADD(p->fdecl, p->ldecl, decl);
+}
+
 void AddList(CmdParser *p, S8_List *result, const char *name, const char *help) {
     CmdDecl *decl     = MA_PushStruct(p->arena, CmdDecl);
     decl->kind        = CmdDeclKind_List;
@@ -54,8 +63,9 @@ S8_String StrEnumValues(MA_Arena *arena, CmdDecl *decl) {
 }
 
 void PrintCmdUsage(CmdParser *p) {
-    IO_Printf("\nhere are the supported commands:\n");
+    IO_Printf("%s\nCommands:\n", p->custom_help);
     for (CmdDecl *it = p->fdecl; it; it = it->next) {
+        IO_Printf("  ");
         if (it->kind == CmdDeclKind_List) {
             S8_String example = S8_Format(p->arena, "-%.*s a b c", S8_Expand(it->name));
             IO_Printf("%-30.*s %.*s\n", S8_Expand(example), S8_Expand(it->help));
@@ -66,13 +76,15 @@ void PrintCmdUsage(CmdParser *p) {
             S8_String enum_vals = StrEnumValues(p->arena, it);
             S8_String example   = S8_Format(p->arena, "-%.*s %.*s", S8_Expand(it->name), S8_Expand(enum_vals));
             IO_Printf("%-30.*s %.*s\n", S8_Expand(example), S8_Expand(it->help));
+        } else if (it->kind == CmdDeclKind_Int) {
+            S8_String example = S8_Format(p->arena, "-%.*s 8", S8_Expand(it->name));
+            IO_Printf("%-30.*s %.*s\n", S8_Expand(example), S8_Expand(it->help));
         } else IO_Todo();
     }
 }
 
 bool InvalidCmdArg(CmdParser *p, S8_String arg) {
     IO_Printf("invalid command line argument: %.*s\n", S8_Expand(arg));
-    PrintCmdUsage(p);
     return false;
 }
 
@@ -96,8 +108,26 @@ bool ParseCmd(MA_Arena *arg_arena, CmdParser *p) {
 
             if (decl->kind == CmdDeclKind_Bool) {
                 *decl->bool_result = !*decl->bool_result;
+            } else if (decl->kind == CmdDeclKind_Int) {
+                if (i + 1 >= p->argc) {
+                    IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg));
+                    return false;
+                }
+                S8_String num = S8_MakeFromChar(p->argv[++i]);
+                for (int i = 0; i < num.len; i += 1) {
+                    if (!CHAR_IsDigit(num.str[i])) {
+                        IO_Printf("expected argument to be a number, got instead: %.*s", S8_Expand(num));
+                        return false;
+                    }
+                }
+                int count           = atoi(num.str);
+                decl->int_result[0] = count;
+
             } else if (decl->kind == CmdDeclKind_Enum) {
-                if (i + 1 >= p->argc) { IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg)); PrintCmdUsage(p); return false; }
+                if (i + 1 >= p->argc) {
+                    IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg));
+                    return false;
+                }
                 S8_String option_from_cmd = S8_MakeFromChar(p->argv[++i]);
 
                 bool found_option = false;
@@ -113,18 +143,23 @@ bool ParseCmd(MA_Arena *arg_arena, CmdParser *p) {
                 if (!found_option) {
                     IO_Printf("expected one of the enum values: %.*s", S8_Expand(StrEnumValues(p->arena, decl)));
                     IO_Printf(" got instead: %.*s\n", S8_Expand(option_from_cmd));
-                    PrintCmdUsage(p);
                     return false;
                 }
 
             } else if (decl->kind == CmdDeclKind_List) {
-                if (i + 1 >= p->argc) { IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg)); PrintCmdUsage(p); return false; }
+                if (i + 1 >= p->argc) {
+                    IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg));
+                    return false;
+                }
 
                 i += 1;
                 for (int counter = 0; i < p->argc; i += 1, counter += 1) {
                     S8_String arg = S8_MakeFromChar(p->argv[i]);
                     if (arg.str[0] == '-') {
-                        if (counter == 0) { IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg)); PrintCmdUsage(p); return false; }
+                        if (counter == 0) {
+                            IO_Printf("expected at least 1 argument after %.*s\n", S8_Expand(arg));
+                            return false;
+                        }
                         i -= 1;
                         break;
                     }
@@ -133,48 +168,19 @@ bool ParseCmd(MA_Arena *arg_arena, CmdParser *p) {
                 }
             } else IO_Todo();
 
+        } else {
+            if (p->require_one_standalone_arg && p->args.node_count == 0) {
+                S8_AddNode(arg_arena, &p->args, arg);
+            } else {
+                return InvalidCmdArg(p, arg);
             }
-        else return InvalidCmdArg(p, arg);
         }
+    }
+
+    if (p->require_one_standalone_arg && p->args.node_count == 0) {
+        PrintCmdUsage(p);
+        return false;
+    }
+
     return true;
 }
-
-// ./a.exe -scratch
-// ./a.exe -quick
-// ./a.exe -run_tests a.test b.test c.test
-// ./a.exe --break_on_error
-// ./a.exe -build=release
-// ./a.exe --help
-//
-void TestCmdParser() {
-    char *argv[] = {
-        "exe",
-        "--build_scratch",
-        "-tests",
-        "a", "b", "c",
-        "--things", "1234", "asdsa",
-        "-build", "release",
-    };
-    int argc = MA_Lengthof(argv);
-
-    MA_Checkpoint scratch = MA_GetScratch();
-    bool build_scratch = false;
-    S8_List test_list = {0};
-    S8_List test_things = {0};
-    int build_profile = 0;
-    const char *build_profiles[] = {"debug", "release"};
-    int build_profiles_count = MA_Lengthof(build_profiles);
-
-    CmdParser p = MakeCmdParser(scratch.arena, argc, argv);
-    AddBool(&p, &build_scratch, "build_scratch", "builds a sandbox where I experiment with things");
-    AddList(&p, &test_list, "tests", "list of specific tests to run");
-    AddList(&p, &test_things, "things", "list of things");
-    AddEnum(&p, &build_profile, "build", "choose build profile", build_profiles, build_profiles_count);
-    bool success = ParseCmd(scratch.arena, &p);
-    IO_Assertf(success, "failed to parse cmd");
-    IO_Assert(build_scratch);
-    IO_Assert(test_list.node_count == 3);
-    IO_Assert(test_things.node_count == 2);
-    IO_Assert(build_profile == 1);
-    MA_ReleaseScratch(scratch);
-}

core/cmd.h

@@ -1,6 +1,7 @@
 
 typedef enum {
     CmdDeclKind_Bool,
+    CmdDeclKind_Int,
     CmdDeclKind_List,
     CmdDeclKind_Enum,
 } CmdDeclKind;
@@ -14,6 +15,7 @@ struct CmdDecl {
 
     bool    *bool_result;
     S8_List *list_result;
+    int     *int_result;
 
     int         *enum_result;
     const char **enum_options;
@@ -25,7 +27,11 @@ struct CmdParser {
     int         argc;
     char      **argv;
     MA_Arena   *arena;
+    const char *custom_help;
 
     CmdDecl *fdecl;
     CmdDecl *ldecl;
+
+    bool    require_one_standalone_arg;
+    S8_List args;
 };

core/core.c

@@ -20,11 +20,3 @@
 #include "filesystem.c"
 
 #include "cmd.c"
-
-/*
-- I think it's okay to say that strings being null terminated should be mostly treated as NOT terminated but leave some
-   leeway for big buffers and other such things. Just make sure to not relay on it because it's easier unless specified.
-- Not sure if we should assume that strings should use allocators or arenas, for now it's arenas because I don't have other use cases
-@todo
-- Remove static buffers from filesystem, use scratch arenas, more secure, data corruption instead of control flow corruption
-*/

core/filesystem.c

@@ -381,7 +381,7 @@ OS_API OS_Date OS_GetDate(void) {
     return result;
 }
 
-#else
+#elif __linux__ || __APPLE__ || __unix__
     #include <unistd.h>
     #include <limits.h>
     #include <sys/stat.h>
@@ -690,9 +690,9 @@ OS_API OS_Result OS_WriteFile(S8_String path, S8_String string) {
     return result;
 }
     #endif
-
 #endif
 
+#if _WIN32 || __linux__ || __APPLE__ || __unix__
 OS_API int OS_SystemF(const char *string, ...) {
     MA_Checkpoint scratch = MA_GetScratch();
     S8_FORMAT(scratch.arena, string, result);
@@ -746,3 +746,4 @@ OS_API S8_String OS_ExpandIncludes(MA_Arena *arena, S8_String filepath) {
     }
     return result;
 }
+#endif

standalone_libraries/arena.c

@@ -4,20 +4,6 @@
     #define MA_Assertf(x, ...) assert(x)
 #endif
 
-#ifndef MA_MemoryZero
-    #include <string.h>
-MA_API void MA_MemoryZero(void *p, size_t size) {
-    memset(p, 0, size);
-}
-#endif
-
-#ifndef MA_MemoryCopy
-    #include <string.h>
-MA_API void MA_MemoryCopy(void *dst, void *src, size_t size) {
-    memcpy(dst, src, size);
-}
-#endif
-
 #ifndef MA_CMalloc
     #include <stdlib.h>
     #define MA_CMalloc(x) malloc(x)
@@ -434,7 +420,7 @@ MA_API bool MV_DecommitPos(MV_Memory *m, size_t pos) {
     return false;
 }
 
-#else
+#elif __unix__ || __linux__ || __APPLE__
     #include <sys/mman.h>
     #define MV__UNIX_PAGE_SIZE 4096
 MA_API MV_Memory MV_Reserve(size_t size) {
@@ -465,4 +451,17 @@ MA_API void MV_Deallocate(MV_Memory *m) {
     int result = munmap(m->data, m->reserve);
     MA_Assertf(result == 0, "Failed to release virtual memory using munmap");
 }
+#else
+MA_API MV_Memory MV_Reserve(size_t size) {
+    MV_Memory result = {0};
+    return result;
+}
+
+MA_API bool MV_Commit(MV_Memory *m, size_t commit) {
+    return false;
+}
+
+MA_API void MV_Deallocate(MV_Memory *m) {
+}
+
 #endif

standalone_libraries/arena.h

@@ -55,6 +55,16 @@ typedef struct MA_SourceLoc MA_SourceLoc;
     #endif
 #endif
 
+#ifndef MA_MemoryZero
+    #include <string.h>
+    #define MA_MemoryZero(p, size) memset(p, 0, size)
+#endif
+
+#ifndef MA_MemoryCopy
+    #include <string.h>
+    #define MA_MemoryCopy(dst, src, size) memcpy(dst, src, size);
+#endif
+
 typedef enum M_AllocatorOp {
     M_AllocatorOp_Invalid,
     M_AllocatorOp_Allocate,
@@ -158,8 +168,6 @@ MA_API void            MA_PopSize(MA_Arena *arena, size_t size);
 MA_API void            MA_DeallocateArena(MA_Arena *arena);
 MA_API void            MA_Reset(MA_Arena *arena);
 
-MA_API void            MA_MemoryZero(void *p, size_t size);
-MA_API void            MA_MemoryCopy(void *dst, void *src, size_t size);
 MA_API size_t          MA_GetAlignOffset(size_t size, size_t align);
 MA_API size_t          MA_AlignUp(size_t size, size_t align);
 MA_API size_t          MA_AlignDown(size_t size, size_t align);

standalone_libraries/io.c

@@ -31,7 +31,7 @@ IO_StaticFunc int IO_Strlen(char *string) {
     return len;
 }
 
-void (*IO_User_OutputMessage)(int kind, const char *file, int line, char *str, int len);
+IO_THREAD_LOCAL void (*IO_User_OutputMessage)(int kind, const char *file, int line, char *str, int len);
 
 IO_API bool IO__FatalErrorf(const char *file, int line, const char *msg, ...) {
     va_list args1;
@@ -108,8 +108,7 @@ IO_API void IO__Printf(int kind, const char *file, int line, const char *msg, ..
 
     if (IO_User_OutputMessage) {
         IO_User_OutputMessage(kind, file, line, result, size);
-    }
-    else {
+    } else {
         IO_OutputMessage(result, size);
     }
 
@@ -118,9 +117,9 @@ IO_API void IO__Printf(int kind, const char *file, int line, const char *msg, ..
     }
 }
 
-IO_API bool IO__FatalError(char *msg) {
-    int len = IO_Strlen(msg);
-    IO_ErrorResult result = IO_OutputError(msg, len);
+IO_API bool IO__FatalError(const char *msg) {
+    int            len    = IO_Strlen((char *)msg);
+    IO_ErrorResult result = IO_OutputError((char *)msg, len);
     if (result == IO_ErrorResult_Exit) {
         IO_Exit(1);
     }
@@ -130,8 +129,7 @@ IO_API bool IO__FatalError(char *msg) {
 IO_API void IO_Print(int kind, const char *file, int line, char *msg, int len) {
     if (IO_User_OutputMessage) {
         IO_User_OutputMessage(kind, file, line, msg, len);
-    }
-    else {
+    } else {
         IO_OutputMessage(msg, len);
     }
 }
@@ -188,8 +186,7 @@ IO_API IO_ErrorResult IO_OutputError(char *str, int len) {
         }
 
         result = IO_ErrorResult_Exit;
-    }
-    else {
+    } else {
         result = IO_ErrorResult_Break;
     }
 
@@ -203,9 +200,8 @@ IO_API IO_ErrorResult IO_OutputError(char *str, int len) {
 IO_API void IO_Exit(int error_code) {
     ExitProcess(error_code);
 }
-#else // _WIN32 else // LIBC
+#elif __linux__ || __unix__ || __APPLE__
     #include <stdio.h>
-
 IO_API IO_ErrorResult IO_OutputError(char *str, int len) {
     fprintf(stderr, "%.*s", len, str);
     return IO_ErrorResult_Exit;
@@ -222,4 +218,19 @@ IO_API void IO_Exit(int error_code) {
 IO_API bool IO_IsDebuggerPresent(void) {
     return false;
 }
+#else
+IO_API IO_ErrorResult IO_OutputError(char *str, int len) {
+    return IO_ErrorResult_Exit;
+}
+
+IO_API void IO_OutputMessage(char *str, int len) {
+}
+
+IO_API void IO_Exit(int error_code) {
+}
+
+IO_API bool IO_IsDebuggerPresent(void) {
+    return false;
+}
+
 #endif // LIBC

standalone_libraries/io.h

@@ -22,6 +22,22 @@ typedef enum IO_ErrorResult {
     #define IO_DebugBreak() (__builtin_trap(), 0)
 #endif
 
+#ifndef IO_THREAD_LOCAL
+    #if defined(__cplusplus) && __cplusplus >= 201103L
+        #define IO_THREAD_LOCAL thread_local
+    #elif defined(__GNUC__)
+        #define IO_THREAD_LOCAL __thread
+    #elif defined(_MSC_VER)
+        #define IO_THREAD_LOCAL __declspec(thread)
+    #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L && !defined(__STDC_NO_THREADS__)
+        #define IO_THREAD_LOCAL _Thread_local
+    #elif defined(__TINYC__)
+        #define IO_THREAD_LOCAL _Thread_local
+    #else
+        #error Couldnt figure out thread local, needs to be provided manually
+    #endif
+#endif
+
 #if defined(__has_attribute)
     #if __has_attribute(format)
         #define IO__PrintfFormat(fmt, va) __attribute__((format(printf, fmt, va)))
@@ -33,13 +49,13 @@ typedef enum IO_ErrorResult {
 #endif
 
 typedef void IO_MessageHandler(int kind, const char *file, int line, char *str, int len);
-extern void (*IO_User_OutputMessage)(int kind, const char *file, int line, char *str, int len);
+extern IO_THREAD_LOCAL void (*IO_User_OutputMessage)(int kind, const char *file, int line, char *str, int len);
 
 #define IO__STRINGIFY(x) #x
 #define IO__TOSTRING(x) IO__STRINGIFY(x)
 #define IO_LINE IO__TOSTRING(__LINE__)
 
-#define IO_Assert(x) !(x) && IO__FatalError((char *)(__FILE__ "(" IO_LINE "): "      \
+#define IO_Assert(x) !(x) && IO__FatalError((__FILE__ "(" IO_LINE "): "      \
                                                       "error: " #x "\n")) && \
                          IO_DebugBreak()
 #define IO_FatalErrorf(...)                                             \
@@ -70,14 +86,14 @@ extern void (*IO_User_OutputMessage)(int kind, const char *file, int line, char
     }
 #define IO_InvalidCodepath() IO_FatalError("This codepath is invalid")
 #define IO_InvalidDefaultCase()                             \
-    default: {                                                  \
+default: {                                                  \
     IO_FatalError("Entered invalid switch statement case"); \
-    }
+}
 #define IO_Todo() IO_FatalError("This codepath is not implemented yet")
 
 IO_API bool           IO__FatalErrorf(const char *file, int line, const char *msg, ...) IO__PrintfFormat(3, 4);
 IO_API void           IO__Printf(int kind, const char *file, int line, const char *msg, ...) IO__PrintfFormat(4, 5);
-IO_API bool IO__FatalError(char *msg);
+IO_API bool           IO__FatalError(const char *msg);
 IO_API void           IO_Print(int kind, const char *file, int line, char *msg, int len);
 IO_API void           IO_OutputMessage(char *str, int len);
 IO_API IO_ErrorResult IO_OutputError(char *str, int len);

standalone_libraries/preproc_env.h

@@ -11,6 +11,7 @@
 #elif defined(__linux__)
     #define OS_POSIX 1
     #define OS_LINUX 1
+#elif OS_WASM
 #else
     #error Unsupported platform
 #endif
@@ -109,6 +110,8 @@
     #define OS_NAME "linux"
 #elif OS_MAC
     #define OS_NAME "mac_os"
+#elif OS_WASM
+    #define OS_NAME "wasm"
 #else
     #error couldnt figure out OS
 #endif

tests/test_main.cpp

@@ -4,6 +4,51 @@
 #include "test_arena.cpp"
 #include "test_lexer.cpp"
 
+// ./a.exe -scratch
+// ./a.exe -quick
+// ./a.exe -run_tests a.test b.test c.test
+// ./a.exe --break_on_error
+// ./a.exe -build=release
+// ./a.exe --help
+//
+void TestCmdParser() {
+    const char *argv[] = {
+        "exe",
+        "--build_scratch",
+        "-tests",
+        "a",
+        "b",
+        "c",
+        "--things",
+        "1234",
+        "asdsa",
+        "-build",
+        "release",
+    };
+    int argc = MA_Lengthof(argv);
+
+    MA_Checkpoint scratch              = MA_GetScratch();
+    bool          build_scratch        = false;
+    S8_List       test_list            = {0};
+    S8_List       test_things          = {0};
+    int           build_profile        = 0;
+    const char   *build_profiles[]     = {"debug", "release"};
+    int           build_profiles_count = MA_Lengthof(build_profiles);
+
+    CmdParser p = MakeCmdParser(scratch.arena, argc, (char **)argv, "this is a test");
+    AddBool(&p, &build_scratch, "build_scratch", "builds a sandbox where I experiment with things");
+    AddList(&p, &test_list, "tests", "list of specific tests to run");
+    AddList(&p, &test_things, "things", "list of things");
+    AddEnum(&p, &build_profile, "build", "choose build profile", build_profiles, build_profiles_count);
+    bool success = ParseCmd(scratch.arena, &p);
+    IO_Assertf(success, "failed to parse cmd");
+    IO_Assert(build_scratch);
+    IO_Assert(test_list.node_count == 3);
+    IO_Assert(test_things.node_count == 2);
+    IO_Assert(build_profile == 1);
+    MA_ReleaseScratch(scratch);
+}
+
 int main() {
     TestSimpleInsertAndIntegrity();
     TestStrings();
@@ -20,7 +65,6 @@ int main() {
     TestBootstrapExclusive();
     TestBootstrapArenaClear();
 
-    // @todo: github worker fails on this:
     TestClexer();
 
     // Unicode iteration over codepoints using For