feat(parser + ast): function parsing support

src/utils/ast/ast_function.c

@@ -23,7 +23,7 @@ struct ast *ast_create_function(char *name, struct ast *value)
     if (!function_data)
         return NULL;
 
-    function_data->name = strdup(name);
+    function_data->name = name;
     function_data->value = value;
 
     return ast_create(AST_FUNCTION, function_data);

src/utils/ast/ast_function.h

@@ -9,18 +9,19 @@ struct ast_function
 
 
 /**
- * Checks if the given AST node is an ast_function
+ * @brief: Checks if the given AST node is an ast_function
  */
 bool ast_is_function(struct ast *node);
 
 /**
- * Retrieves the function data from the given AST node.
- * Assumes that the node is of type AST_function.
+ * @brief: Retrieves the function data from the given AST node.
+ *         Assumes that the node is of type AST_function.
  */
 struct ast_function *ast_get_function(struct ast *node);
 
 /**
- * Creates a new AST node representing an AST_function
+ * @brief: Creates a new AST node representing an AST_function
+ * @warning: name must be already allocated.
  */
 struct ast *ast_create_function(char *name, struct ast *value);
 /*