Frees symbol tables

Author: Kabombom

symbol_table.c

@@ -182,3 +182,54 @@ void show_tables() {
     aux = aux->next;
   }
 }
+
+void destroy_param_types(param_type *current) {
+  if (current == NULL) {
+    return;
+  }
+
+  if (current->name != NULL) {
+    free(current->name);
+  }
+
+  destroy_param_types(current->next);
+
+  free(current);
+}
+
+void destroy_symbols(symbol *current) {
+  if (current == NULL) {
+    return;
+  }
+
+  if (current->name != NULL) {
+    free(current->name);
+  }
+  if (current->type != NULL) {
+    free(current->type);
+  }
+  if (current->param != NULL) {
+    destroy_param_types(current->param);
+  }
+
+  destroy_symbols(current->next);
+
+  free(current);
+}
+
+void destroy_tables(table *current) {
+  if (current == NULL) {
+    return;
+  }
+
+  if (current->name != NULL) {
+    free(current->name);
+  }
+  if(current->symbol != NULL) {
+    destroy_symbols(current->symbol);
+  }
+
+  destroy_tables(current->next);
+
+  free(current);
+}

symbol_table.h

@@ -49,6 +49,10 @@ void show_symbol(symbol *symbol);
 void show_table(table *table);
 void show_tables();
 
+void destroy_param_types(param_type *param);
+void destroy_symbols(symbol *symbols);
+void destroy_tables();
+
 table *tables;
 table *current;
 

uccompiler.l

@@ -189,6 +189,7 @@ int main(int argc, char *argv[]) {
       check_program(ast);
       generate_code(ast);
       destroy_ast(ast);
+      destroy_tables(tables);
     }
   }
   return 0;
@@ -203,3 +204,4 @@ void yyerror (char *s) {
   int aux_col = col - strlen(yytext);
   printf("Line %d, col %d: %s: %s\n", line, aux_col, s, yytext);
 }
+