From 1b6a04ca5504955c571d1c97504fb45ea0befee4 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Mon, 8 Jan 2024 01:21:28 +0400
Subject: Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>
---
 vendor/miette/src/eyreish/into_diagnostic.rs | 33 ++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 vendor/miette/src/eyreish/into_diagnostic.rs

(limited to 'vendor/miette/src/eyreish/into_diagnostic.rs')

diff --git a/vendor/miette/src/eyreish/into_diagnostic.rs b/vendor/miette/src/eyreish/into_diagnostic.rs
new file mode 100644
index 0000000..6480013
--- /dev/null
+++ b/vendor/miette/src/eyreish/into_diagnostic.rs
@@ -0,0 +1,33 @@
+use thiserror::Error;
+
+use crate::{Diagnostic, Report};
+
+/// Convenience [`Diagnostic`] that can be used as an "anonymous" wrapper for
+/// Errors. This is intended to be paired with [`IntoDiagnostic`].
+#[derive(Debug, Error)]
+#[error(transparent)]
+struct DiagnosticError(Box<dyn std::error::Error + Send + Sync + 'static>);
+impl Diagnostic for DiagnosticError {}
+
+/**
+Convenience trait that adds a [`.into_diagnostic()`](IntoDiagnostic::into_diagnostic) method that converts a type implementing
+[`std::error::Error`] to a [`Result<T, Report>`].
+
+## Warning
+
+Calling this on a type implementing [`Diagnostic`] will reduce it to the common denominator of
+[`std::error::Error`]. Meaning all extra information provided by [`Diagnostic`] will be
+inaccessible. If you have a type implementing [`Diagnostic`] consider simply returning it or using
+[`Into`] or the [`Try`](std::ops::Try) operator (`?`).
+*/
+pub trait IntoDiagnostic<T, E> {
+    /// Converts [`Result`] types that return regular [`std::error::Error`]s
+    /// into a [`Result`] that returns a [`Diagnostic`].
+    fn into_diagnostic(self) -> Result<T, Report>;
+}
+
+impl<T, E: std::error::Error + Send + Sync + 'static> IntoDiagnostic<T, E> for Result<T, E> {
+    fn into_diagnostic(self) -> Result<T, Report> {
+        self.map_err(|e| DiagnosticError(Box::new(e)).into())
+    }
+}
-- 
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