//

// File Name:    logger.rs

// Project Name: flogging

//

// Copyright (C) 2025 Bradley Willcott

//

// SPDX-License-Identifier: GPL-3.0-or-later

//

// This library (crate) is free software: you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation, either version 3 of the License, or

// (at your option) any later version.

//

// This library (crate) is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

//

// You should have received a copy of the GNU General Public License

// along with this library (crate).  If not, see <https://www.gnu.org/licenses/>.

//

//!

//! # Logger Macro Impl

//!

use proc_macro::TokenStream;

use quote::quote;

use syn::{ItemFn, parse_macro_input};

    // println!("attr: (is_empty: {}) {attr}", attr.to_string().is_empty());

    // Parse the input as `ItemFn` which is a type provided

    // by `syn` to represent a function.

    let ItemFn {

        // The function signature

        // The visibility specifier of this function

        // The function block or body

        // Other attributes applied to this function

    // Extract statements in the body of the functions

    // Store the function identifier for logging

    } else {

    };

    // Reconstruct the function as output using parsed input

        // Reapply all the other attributes on this function.

        // The compiler doesn't include the macro we are

        // currently working in this list.

        #(#attrs)*

        // Reconstruct the function declaration

        #vis #sig {

            // At the beginning of the function, borrow a reference to

            // module level static logger.

            let __binding = LOGGER;

            let mut __log = __binding.borrow_mut();

            __log.set_fn_name(#function_identifier);

            #(#statements)*

        }

    )