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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include <errno.h>
#include <error.h>
#include <ctype.h>
#include "types.h"
// functions for user
void Die(); // brings down the program
void *CheckedMalloc(long size); // CheckedMalloc checked with autofree
void *CheckedRealloc(void *out, long size); // realloc checked with autofree
literal *giveType(char *tok);
void Die(){
fprintf(stderr, "error occured, bringing down the program\n");
exit(1);
}
void *CheckedMalloc(long size){
void *out = malloc(size);
if (out == NULL)
Die();
return out;
}
void *CheckedRealloc(void *orig, long size){
void *out = realloc(orig, size);
if (out == NULL)
Die();
return out;
}
I64 *isNum(char *str){
for (int i = 0; i < strlen(str); i++){
if (isdigit(str[i]) == 0 && str[i] != '-'){
return NULL;
}
}
I64 *out = CheckedMalloc(sizeof(I64));
out->data = strtol(str, NULL, 10);
return out;
}
Float *isFloat(char *str){
for (int i = 0; i < strlen(str); i++){
if (isdigit(str[i]) == 0 && str[i] != '-' && str[i] != '.'){
return NULL;
}
}
Float *out = CheckedMalloc(sizeof(Float));
out->data = strtod(str, NULL);
return out;
}
Char *isChar(char *str){
if (str[0] == '\'' && str[strlen(str)-1] == '\''){
str++;
str[strlen(str)-1] = '\0';
if (strlen(str) == 1){
Char *out = CheckedMalloc(sizeof(Char));
out->data = str[0];
return out;
}
else return NULL;
}
return NULL;
}
Arr *isArr(char *str){
char *strbak = CheckedMalloc(strlen(str));
memcpy(strbak, str, strlen(str)+1);
if (strbak[0] == '[' && strbak[strlen(strbak)-1] == ']'){
Arr *arr = CheckedMalloc(sizeof(Arr));
arr->arr = CheckedMalloc(sizeof(literal));
strbak++;
strbak[strlen(strbak)-1] = '\0';
char *tok;
int length = 0;
size_t cCount = 1;
tok = strtok(strbak, ",");
while (tok != NULL){
cCount++;
arr = CheckedRealloc(arr, sizeof(Arr) * cCount);
arr->arr[cCount - 2] = *giveType(tok);
tok = strtok(NULL, ",");
length++;
}
arr->len = length;
free(strbak - 1);
return arr;
} else {
free(strbak);
return NULL;
}
}
Vdef *isVdef(char *str){
if (strchr(str, ':') != NULL){
Vdef *out = CheckedMalloc(sizeof(Vdef));
char *type;
char *tmp = strtok(str, ":");
out->id = CheckedMalloc(strlen(tmp)+1);
memcpy(out->id, tmp, strlen(tmp)+1);
type = strtok(NULL, ":");
if (strcmp(type, "i64") == 0) out->type = TI64;
else if (strcmp(type, "i32") == 0) out->type = TI32;
else if (strcmp(type, "u64") == 0) out->type = TU64;
else if (strcmp(type, "u32") == 0) out->type = TU32;
else if (strcmp(type, "char") == 0) out->type = TChar;
else if (strcmp(type, "float") == 0) out->type = Tfloat;
// do something with arrays here
else {
fprintf(stderr, "%s is not a valid data type\n", type);
Die();
}
return out;
}
return NULL;
}
literal *giveType(char *tok){
literal *out = CheckedMalloc(sizeof(literal));
Arr *arr = isArr(tok);
I64 *i64 = isNum(tok);
Float *fl = isFloat(tok);
Char *ch = isChar(tok);
Vdef *vdef = isVdef(tok);
if (arr != NULL){
out->arr = arr;
} else if (i64 != NULL){
out->i64 = i64;
} else if (fl != NULL){
out->fl = fl;
} else if (ch != NULL){
out->ch = ch;
}else if (vdef != NULL){
out->vdef = vdef;
} else {
fprintf(stderr, "data %s could not be typed\n", tok);
Die();
}
return out;
}
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