yfunc_rust/
error.rs

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use strum_macros::{Display, EnumString};

pub type YRes<T> = Result<T, YError>;

#[derive(Debug, EnumString, Display, Clone)]
pub enum YError {
    Error(Vec<String>),
    IOError(Vec<String>),
    ParseError(Vec<String>),
    DataBaseError(Vec<String>),
    ConsistentError(Vec<String>),
    BusinessError(Vec<String>),
}

impl YError {

    pub fn get_context(&self) -> &Vec<String> {
        match self {
            YError::Error(context) |
            YError::IOError(context) |
            YError::ParseError(context) |
            YError::DataBaseError(context) |
            YError::ConsistentError(context) |
            YError::BusinessError(context) => {
                context
            }
        }
    }

    pub fn get_context_mut(&mut self) -> &mut Vec<String> {
        match self {
            YError::Error(context) |
            YError::IOError(context) |
            YError::ParseError(context) |
            YError::ConsistentError(context) |
            YError::DataBaseError(context) |
            YError::BusinessError(context) => {
                context
            }
        }
    }

    pub fn print(&self) {
        println!("{:?}", self)
    }

}

pub trait Trace {
    fn trace(self, ctx: String) -> Self;
}

impl<T> Trace for YRes<T> {
    fn trace(mut self, ctx: String) -> Self {
        if let Err(err) = &mut self {
            err.get_context_mut().push(ctx)
        }
        self
    }
}

#[macro_export]
macro_rules! ctx {
    () => {
        format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!())
    };
    ($process_and_influence:literal) => {
        format!("{}, MODULE={}, FILE={}, LINE={}", $process_and_influence, module_path!(), file!(), line!())
    };
    ($process_and_influence:literal:$reason:expr) => {
        format!("{}: {}, MODULE={}, FILE={}, LINE={}", $process_and_influence, $reason, module_path!(), file!(), line!())
    };
    ($process_and_influence:literal, $($value:expr),*) => {{
        let mut ctx = format!("{}, ", $process_and_influence);
        $(
            let var_trace = format!("{}={:?}, ", stringify!($value), $value);
            ctx.push_str(&var_trace);
        )*
        ctx.push_str(&format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!()));
        ctx
    }};
    ($($value:expr),*) => {{
        let mut ctx = String::new();
        $(
            let var_trace = format!("{}={:?}, ", stringify!($value), $value);
            ctx.push_str(&var_trace);
        )*
        ctx.push_str(&format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!()));
        ctx
    }};
    ($process_and_influence:literal:$reason:expr, $($value:expr),*) => {{
        let mut ctx = format!("{}: {}, ", $process_and_influence, $reason);
        $(
            let var_trace = format!("{}={:?}, ", stringify!($value), $value);
            ctx.push_str(&var_trace);
        )*
        ctx.push_str(&format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!()));
        ctx
    }};
}

#[macro_export]
macro_rules! err {
    ($error_type:ident) => {{
        let ctx = format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!());
        YError::$error_type(vec![ctx])
    }};
    ($error_type:ident::$process_and_influence:literal) => {{
        let ctx = format!("{}, MODULE={}, FILE={}, LINE={}", $process_and_influence, module_path!(), file!(), line!());
        YError::$error_type(vec![ctx])
    }};
    ($error_type:ident::$process_and_influence:literal:$reason:expr) => {{
        let ctx = format!("{}: {}, MODULE={}, FILE={}, LINE={}", $process_and_influence, $reason, module_path!(), file!(), line!());
        YError::$error_type(vec![ctx])
    }};
    ($error_type:ident, $($value:expr),*) => {{
        let mut ctx = String::new();
        $(
            let var_trace = format!("{}={:?}, ", stringify!($value), $value);
            ctx.push_str(&var_trace);
        )*
        ctx.push_str(&format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!()));
        YError::$error_type(vec![ctx])
    }};
    ($error_type:ident::$process_and_influence:literal, $($value:expr),*) => {{
        let mut ctx = format!("{}, ", $process_and_influence);
        $(
            let var_trace = format!("{}={:?}, ", stringify!($value), $value);
            ctx.push_str(&var_trace);
        )*
        ctx.push_str(&format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!()));
        YError::$error_type(vec![ctx])
    }};
    ($error_type:ident::$process_and_influence:literal:$reason:expr, $($value:expr),*) => {{
        let mut ctx = format!("{}: {}, ", $process_and_influence, $reason);
        $(
            let var_trace = format!("{}={:?}, ", stringify!($value), $value);
            ctx.push_str(&var_trace);
        )*
        ctx.push_str(&format!("MODULE={}, FILE={}, LINE={}", module_path!(), file!(), line!()));
        YError::$error_type(vec![ctx])
    }};
}