dfmt 0.4.1

A fully featured dynamic template drop in replacement for the format! macro.
Documentation 
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use crate::values::Type;

#[cfg(not(feature = "std"))]
use alloc::string::{String, ToString};

#[doc(hidden)]
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct TypedArgumentKey {
    pub key: ArgumentKey,
    pub ty: Type,
}

impl TypedArgumentKey {
    pub fn new(key: ArgumentKey, ty: Type) -> Self {
        Self { key, ty }
    }
}

/// The key of an argument.
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum ArgumentKey {
    Index(usize),
    Name(String),
}

impl core::fmt::Display for ArgumentKey {
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        match self {
            ArgumentKey::Index(index) => write!(f, "{}", index),
            ArgumentKey::Name(name) => write!(f, "{}", name),
        }
    }
}

#[doc(hidden)]
pub trait ToArgumentKey {
    fn to_argument_key(&self) -> ArgumentKey;
}

impl ToArgumentKey for usize {
    fn to_argument_key(&self) -> ArgumentKey {
        ArgumentKey::Index(*self)
    }
}

impl ToArgumentKey for &str {
    fn to_argument_key(&self) -> ArgumentKey {
        ArgumentKey::Name(self.to_string())
    }
}

impl ToArgumentKey for ArgumentKey {
    fn to_argument_key(&self) -> ArgumentKey {
        self.clone()
    }
}