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@ -75,7 +75,7 @@
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</script>
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<nav id="sidebar" class="sidebar" aria-label="Table of contents">
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<ol class="chapter"><li class="affix"><a href="index.html">chainerror</a></li><li><a href="tutorial1.html"><strong aria-hidden="true">1.</strong> Simple String Errors</a></li><li><a href="tutorial2.html"><strong aria-hidden="true">2.</strong> Simple Chained String Errors</a></li><li><a href="tutorial3.html"><strong aria-hidden="true">3.</strong> Mapping Errors</a></li><li><a href="tutorial4.html" class="active"><strong aria-hidden="true">4.</strong> Saving coding chars</a></li><li><a href="tutorial5.html"><strong aria-hidden="true">5.</strong> The source() of Errors</a></li><li><a href="tutorial6.html"><strong aria-hidden="true">6.</strong> Downcast the Errors</a></li><li><a href="tutorial7.html"><strong aria-hidden="true">7.</strong> The root cause of all Errors</a></li><li><a href="tutorial8.html"><strong aria-hidden="true">8.</strong> Finding an Error cause</a></li><li><a href="tutorial9.html"><strong aria-hidden="true">9.</strong> Selective Error Handling</a></li><li><a href="tutorial10.html"><strong aria-hidden="true">10.</strong> ErrorKind to the rescue</a></li><li><a href="tutorial11.html"><strong aria-hidden="true">11.</strong> Debug for the ErrorKind</a></li><li><a href="tutorial12.html"><strong aria-hidden="true">12.</strong> Deref for the ErrorKind</a></li><li class="affix"><a href="end.html">The End</a></li></ol>
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<ol class="chapter"><li class="affix"><a href="index.html">chainerror</a></li><li><a href="tutorial1.html"><strong aria-hidden="true">1.</strong> Simple String Errors</a></li><li><a href="tutorial2.html"><strong aria-hidden="true">2.</strong> Simple Chained String Errors</a></li><li><a href="tutorial3.html"><strong aria-hidden="true">3.</strong> Mapping Errors</a></li><li><a href="tutorial4.html" class="active"><strong aria-hidden="true">4.</strong> Saving coding chars</a></li><li><a href="tutorial5.html"><strong aria-hidden="true">5.</strong> The source() of Errors</a></li><li><a href="tutorial6.html"><strong aria-hidden="true">6.</strong> Downcast the Errors</a></li><li><a href="tutorial7.html"><strong aria-hidden="true">7.</strong> The root cause of all Errors</a></li><li><a href="tutorial8.html"><strong aria-hidden="true">8.</strong> Finding an Error cause</a></li><li><a href="tutorial9.html"><strong aria-hidden="true">9.</strong> Selective Error Handling</a></li><li><a href="tutorial10.html"><strong aria-hidden="true">10.</strong> ErrorKind to the rescue</a></li><li><a href="tutorial11.html"><strong aria-hidden="true">11.</strong> Debug for the ErrorKind</a></li><li><a href="tutorial12.html"><strong aria-hidden="true">12.</strong> Deref for the ErrorKind</a></li><li><a href="tutorial13.html"><strong aria-hidden="true">13.</strong> Writing a library</a></li><li class="affix"><a href="end.html">The End</a></li></ol>
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</nav>
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<div id="page-wrapper" class="page-wrapper">
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@ -146,7 +146,7 @@ let you jump through hoops, <code>chainerror</code> has a quick macro for that.<
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<p><code>mstrerror!()</code> fits right into <code>.map_err()</code> letting you quickly add
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more debug strings.</p>
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<p><code>mstrerror!()</code> even understands <code>format!()</code> syntax like <code>println!()</code>.</p>
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<pre><pre class="playpen"><code class="language-rust">use crate::chainerror::*;
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<pre><pre class="playpen"><code class="language-rust">use chainerror::*;
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use std::error::Error;
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use std::io;
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use std::result::Result;
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@ -173,6 +173,7 @@ fn main() -> Result<(), Box<Error>> {
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}
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Ok(())
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}
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# #[allow(dead_code)]
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# mod chainerror {
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# //! `chainerror` provides an error backtrace without doing a real backtrace, so even after you `strip` your
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@ -861,15 +862,9 @@ fn main() -> Result<(), Box<Error>> {
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# ( None, $fmt:expr, $($arg:tt)+ ) => ({
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# cherr!(None, format!($fmt, $($arg)+ ))
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# });
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# ( $e:ident, $k:expr ) => ({
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# ChainError::<_>::new($k, Some(Box::from($e)), Some((line!(), file!())))
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# });
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# ( $e:path, $k:expr ) => ({
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# ChainError::<_>::new($k, Some(Box::from($e)), Some((line!(), file!())))
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# });
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# ( $e:ident, $fmt:expr, $($arg:tt)+ ) => ({
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# cherr!($e, format!($fmt, $($arg)+ ))
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# });
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# ( $e:path, $fmt:expr, $($arg:tt)+ ) => ({
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# cherr!($e, format!($fmt, $($arg)+ ))
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# });
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@ -964,21 +959,12 @@ fn main() -> Result<(), Box<Error>> {
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# /// ~~~
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# #[macro_export]
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# macro_rules! mstrerr {
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# ( $t:ident, $msg:expr ) => ({
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# |e| cherr!(e, $t ($msg.to_string()))
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# });
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# ( $t:path, $msg:expr ) => ({
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# |e| cherr!(e, $t ($msg.to_string()))
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# });
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# ( $t:ident, $msg:expr, ) => ({
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# |e| cherr!(e, $t ($msg.to_string()))
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# });
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# ( $t:path, $msg:expr, ) => ({
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# |e| cherr!(e, $t ($msg.to_string()))
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# });
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# ( $t:ident, $fmt:expr, $($arg:tt)+ ) => ({
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# |e| cherr!(e, $t (format!($fmt, $($arg)+ )))
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# });
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# ( $t:path, $fmt:expr, $($arg:tt)+ ) => ({
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# |e| cherr!(e, $t (format!($fmt, $($arg)+ )))
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# });
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@ -1031,21 +1017,12 @@ fn main() -> Result<(), Box<Error>> {
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# /// ~~~
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# #[macro_export]
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# macro_rules! strerr {
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# ( $t:ident, $msg:expr ) => ({
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# cherr!($t ($msg.to_string()))
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# });
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# ( $t:path, $msg:expr ) => ({
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# cherr!($t ($msg.to_string()))
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# });
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# ( $t:ident, $msg:expr, ) => ({
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# cherr!($t ($msg.to_string()))
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# });
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# ( $t:path, $msg:expr, ) => ({
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# cherr!($t ($msg.to_string()))
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# });
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# ( $t:ident, $fmt:expr, $($arg:tt)+ ) => ({
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# cherr!($t (format!($fmt, $($arg)+ )))
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# });
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# ( $t:path, $fmt:expr, $($arg:tt)+ ) => ({
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# cherr!($t (format!($fmt, $($arg)+ )))
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# });
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