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units: Re-order impl_parse_str 

We have a public macro `impl_parse_str` and a helper macro used by it,
both pubicly exported.

As we did for `impl_parse_str_from_int_infallible`; to assist readers
understanding what is going on put the helper below the other.

Done as a separate patch to make the diff easier to read.

Internal change only, no logic change.
This commit is contained in:
Tobin C. Harding 2024-12-18 11:24:39 +11:00
parent 4cc7aae6b9
commit 2675cd1040
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1 changed files with 16 additions and 16 deletions
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32
units/src/parse.rs
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@ -131,22 +131,6 @@ macro_rules! impl_tryfrom_str_from_int_infallible {
}
}
/// Implements `TryFrom<$from> for $to`.
#[macro_export]
macro_rules! impl_tryfrom_str {
($($from:ty, $to:ty, $err:ty, $inner_fn:expr);*) => {
$(
impl $crate::_export::_core::convert::TryFrom<$from> for $to {
type Error = $err;
fn try_from(s: $from) -> $crate::_export::_core::result::Result<Self, Self::Error> {
$inner_fn(s)
}
}
)*
}
}
/// Implements standard parsing traits for `$type` by calling into `$inner_fn`.
#[macro_export]
macro_rules! impl_parse_str {
@ -165,6 +149,22 @@ macro_rules! impl_parse_str {
}
}
/// Implements `TryFrom<$from> for $to`.
#[macro_export]
macro_rules! impl_tryfrom_str {
($($from:ty, $to:ty, $err:ty, $inner_fn:expr);*) => {
$(
impl $crate::_export::_core::convert::TryFrom<$from> for $to {
type Error = $err;
fn try_from(s: $from) -> $crate::_export::_core::result::Result<Self, Self::Error> {
$inner_fn(s)
}
}
)*
}
}
/// Removes the prefix `0x` (or `0X`) from a hex string.
///
/// # Errors