implemented Error struct

include/tlibc/collections/List.h

@@ -7,14 +7,14 @@ typedef struct List {
     u32 allocated_size;
 } List;
 
-#define List_construct(L, T, OCCUPIED_COUNT, ALLOCATED_COUNT) \
-    List_construct_size(L, (OCCUPIED_COUNT) * sizeof(T), (ALLOCATED_COUNT) * sizeof(T))
+#define List_construct(DATA_PTR, T, OCCUPIED_COUNT, ALLOCATED_COUNT) \
+    List_construct_size(DATA_PTR, (OCCUPIED_COUNT) * sizeof(T), (ALLOCATED_COUNT) * sizeof(T))
 
-static inline List List_construct_size(void* data_ptr, u32 size, u32 allocated_size) {
-    return (List){ .data = data_ptr, .size = size, .allocated_size = allocated_size };
+static inline List List_construct_size(void* data_ptr, u32 occupied_size, u32 allocated_size) {
+    return (List){ .data = data_ptr, .size = occupied_size, .allocated_size = allocated_size };
 }
 
-#define List_alloc(L, T, INITIAL_COUNT) List_alloc_size(L, (INITIAL_COUNT) * sizeof(T))
+#define List_alloc(T, INITIAL_COUNT) List_alloc_size((INITIAL_COUNT) * sizeof(T))
 List List_alloc_size(u32 initial_size);
 
 void* List_expand(List* ptr, u32 expansion_size);

include/tlibc/errors.h

@@ -0,0 +1,61 @@
+#pragma once
+#include "std.h"
+#include "string/str.h"
+#include "collections/List.h"
+
+typedef struct ErrorCallPos {
+    i32 line;
+    str file; 
+    str func;
+} ErrorCallPos;
+#define ErrorCallPos_here() (ErrorCallPos){\
+    .line = __LINE__,\
+    .file = str_construct((char*)(void*)__FILE__, sizeof(__FILE__), true),\
+    .func = str_construct((char*)(void*)__func__, sizeof(__func__), true)\
+}
+
+typedef struct Error {
+    str msg;
+    bool is_msg_on_heap;
+    /* List<ErrorCallPos> */
+    List call_stack;
+} Error;
+
+Error* Error_create(const char* msg, bool is_msg_on_heap, ErrorCallPos);
+void Error_destroy(Error* e);
+void Error_addCallPos(Error* e, ErrorCallPos p);
+str Error_toStr(Error* e);
+void Error_printAndExit(Error* e) __attribute__ ((__noreturn__));
+
+typedef struct Result_ {
+    Error* error;
+    union {
+        u64 v_u64;
+        i64 v_i64;
+        f32 v_f32;
+        f64 v_f64;
+        void* v_ptr;
+    };
+} Result_;
+
+#define Result(T) Result_
+
+
+#define RESULT_ERROR(MSG, IS_MSG_ON_HEAP) (Result_){ .error = Error_create(MSG, IS_MSG_ON_HEAP, ErrorCallPos_here()) }
+#define RESULT_VOID (Result_){ .error = NULL }
+#define RESULT_VALUE(TYPE, V) (Result_){ .error = NULL, .v_##TYPE = V }
+
+#define try(VAR, RSLT_CALL, DEFER_CODE) \
+    Result_ VAR = RSLT_CALL;\
+    if(VAR.error){\
+        Error_addCallPos(VAR.error, ErrorCallPos_here());\
+        DEFER_CODE;\
+        return VAR;\
+    };
+
+#define try_fatal(VAR, RSLT_CALL, DEFER_CODE) \
+    Result_ VAR = RSLT_CALL;\
+    if(VAR.error){\
+        DEFER_CODE;\
+        Error_printAndExit(VAR.error);\
+    };

include/tlibc/std.h

@@ -20,6 +20,7 @@ typedef int64_t i64;
 typedef uint64_t u64;
 typedef float f32;
 typedef double f64;
+typedef void* ptr;
 
 #if !__cplusplus
 typedef u8 bool;
@@ -33,7 +34,7 @@ typedef const char* cstr;
 
 #define nameof(V) #V
 
-#define ARRAY_SIZE(A) (sizeof(A)/sizeof(A[0]))
+#define ARRAY_LEN(A) (sizeof(A)/sizeof(A[0]))
 #define ALIGN_TO(_SIZE,_ALIGN)        (((_SIZE) + ((_ALIGN) - 1)) & ~((_ALIGN) - 1))
 
 #if defined(_WIN64) || defined(_WIN32)

include/tlibc/string/StringBuilder.h

@@ -21,7 +21,7 @@ void StringBuilder_append_str(StringBuilder* b, str s);
 void StringBuilder_append_i64(StringBuilder* b, i64 a);
 void StringBuilder_append_u64(StringBuilder* b, u64 a);
 void StringBuilder_append_f64(StringBuilder* b, f64 a);
-void StringBuilder_append_memory(StringBuilder* b, Array mem);
+void StringBuilder_append_memory(StringBuilder* b, Array mem, bool uppercase);
 
 // adds '\0' to the buffer and returns pointer to buffer content
 str StringBuilder_getStr(StringBuilder* b);

include/tlibc/string/str.h

@@ -3,6 +3,7 @@
 #include "../std.h"
 #include "char.h"
 #include "cstr.h"
+#include "../collections/Array.h"
 
 typedef struct str {
     char* data;
@@ -11,7 +12,7 @@ typedef struct str {
 } str;
 
 /// creates str from a string literal
-#define STR(LITERAL) str_construct(LITERAL, ARRAY_SIZE(LITERAL) - 1, true)
+#define STR(LITERAL) str_construct(LITERAL, ARRAY_LEN(LITERAL) - 1, true)
 
 #define str_construct(DATA, LEN, ZERO_TERMINATED) ((str){ .data = DATA, .size = LEN, .isZeroTerminated = ZERO_TERMINATED })
 
@@ -41,3 +42,5 @@ u32 str_hash32(str s);
 
 str str_toUpper(str src);
 str str_toLower(str src);
+
+str hex_to_str(Array buf, bool uppercase);

src/collections/HashMap.c

@@ -1,4 +1,4 @@
-#include "collections/HashMap.h"
+#include "tlibc/collections/HashMap.h"
 #include <assert.h>
 
 //TODO: sort bucket keys for binary search
@@ -83,7 +83,7 @@ void* NULLABLE(HashMap_tryGetPtr)(HashMap* ptr, str key){
 
 static void __HashMap_expand(HashMap* ptr){
     u32 height_expanded_n = ptr->height_n + 1;
-    assert(height_expanded_n >= Array_len(&__HashMap_heights, u32) && "HashMap IS FULL! Fix your code.");
+    assert(height_expanded_n < Array_len(&__HashMap_heights, u32) && "HashMap IS FULL! Fix your code.");
 
     // alloc new HashMapBucket array
     u32 height_expanded = ((u32*)__HashMap_heights.data)[height_expanded_n];

src/collections/List.c

@@ -1,4 +1,4 @@
-#include "collections/List.h"
+#include "tlibc/collections/List.h"
 
 List List_alloc_size(u32 initial_size){
     if(initial_size == 0)

src/errors.c

@@ -0,0 +1,53 @@
+#include "tlibc/errors.h"
+#include "tlibc/string/StringBuilder.h"
+
+#define ERRMSG_LENGTH 1024
+
+Error* Error_create(const char* msg, bool is_msg_on_heap, ErrorCallPos){
+    Error* e = (Error*)malloc(sizeof(Error));
+    e->msg = str_construct((char*)(void*)msg, strlen(msg), true);
+    e->is_msg_on_heap = is_msg_on_heap;
+    e->call_stack = List_alloc(ErrorCallPos, 1);
+    return e;
+}
+
+void Error_destroy(Error* e){
+    if(e->is_msg_on_heap)
+        free(e->msg.data);
+    free(e->call_stack.data);
+}
+
+void Error_addCallPos(Error* e, ErrorCallPos p){
+    List_push(&e->call_stack, ErrorCallPos, p);
+}
+
+str Error_toStr(Error* e){
+    u32 len = List_len(&e->call_stack, ErrorCallPos);
+    StringBuilder b = StringBuilder_alloc(e->msg.size + 80 * len);
+    
+    StringBuilder_append_str(&b, STR("Error: "));
+    StringBuilder_append_str(&b, e->msg);
+    for(u32 i = 0; i < len; i++){
+        ErrorCallPos* ep = (ErrorCallPos*)e->call_stack.data + i;
+        StringBuilder_append_str(&b, STR("\n  at "));
+        StringBuilder_append_str(&b, ep->file);
+        StringBuilder_append_char(&b, ':');
+        StringBuilder_append_i64(&b, ep->line);
+        StringBuilder_append_char(&b, ' ');
+        StringBuilder_append_str(&b, ep->func);
+        StringBuilder_append_str(&b, STR("()\n"));
+    }
+
+    return StringBuilder_getStr(&b);
+}
+
+
+void Error_printAndExit(Error* e){
+    Error_addCallPos(e, ErrorCallPos_here());\
+    str e_str = Error_toStr(e);
+    printfe("%s\n", e_str.data);
+    free(e_str.data);
+    Error_destroy(e);
+    free(e);
+    exit(111);
+}

src/string/StringBuilder.c

@@ -1,4 +1,4 @@
-#include "string/StringBuilder.h"
+#include "tlibc/string/StringBuilder.h"
 
 void StringBuilder_destroy(StringBuilder* b){
     free(b->buffer.data);
@@ -55,13 +55,13 @@ void StringBuilder_append_f64(StringBuilder* b, f64 n){
     StringBuilder_append_cstr(b, buf);
 }
 
-void StringBuilder_append_memory(StringBuilder* b, Array mem) {
+void StringBuilder_append_memory(StringBuilder* b, Array mem, bool uppercase) {
     if(mem.data == NULL)
         return;
     
     char buf[8];
     for (u32 i=0; i < mem.size; i++) {
-        sprintf(buf, "%02x", ((u8*)mem.data)[i]);
+        sprintf(buf, uppercase ? "%02X" : "%02x", ((u8*)mem.data)[i]);
         StringBuilder_append_str(b, str_construct(buf, 2, true));
     }
 }

src/string/cstr.c

@@ -1,4 +1,4 @@
-#include "string/cstr.h"
+#include "tlibc/string/cstr.h"
 #include <stdarg.h>
 
 char* _strcat_malloc(size_t n, cstr str0, ...){

src/string/str.c

@@ -1,4 +1,5 @@
-#include "string/str.h"
+#include "tlibc/string/str.h"
+#include "tlibc/string/StringBuilder.h"
 
 str str_copy(str src){
     if(src.data == NULL || src.size == 0)
@@ -123,3 +124,9 @@ str str_toLower(str src){
     }
     return r;
 }
+
+str hex_to_str(Array buf, bool uppercase){
+    StringBuilder sb = StringBuilder_alloc(buf.size * 2 + 1);
+    StringBuilder_append_memory(&sb, buf, uppercase);
+    return StringBuilder_getStr(&sb);
+}