tests: fix doctests and such

README.md

@@ -87,16 +87,16 @@ use thiserror::Error;
 #[error("oops!")]
 #[diagnostic(
     code(oops::my::bad),
+    url(docsrs),
     help("try doing it better next time?"),
 )]
 struct MyBad {
     // The Source that we're gonna be printing snippets out of.
     // This can be a String if you don't have or care about file names.
+    #[source_code]
     src: NamedSource,
     // Snippets and highlights can be included in the diagnostic!
-    #[snippet(src, message("This is the part that broke"))]
-    snip: SourceSpan,
-    #[highlight(snip, label("This bit here"))]
+    #[label("This bit here")]
     bad_bit: SourceSpan,
 }
 
@@ -116,7 +116,6 @@ fn this_fails() -> Result<()> {
 
     Err(MyBad {
         src: NamedSource::new("bad_file.rs", src),
-        snip: (0, len).into(),
         bad_bit: (9, 4).into(),
     })?;
 
@@ -329,26 +328,17 @@ use thiserror::Error;
 #[diagnostic(code(my_lib::random_error))]
 pub struct MyErrorType {
     // The `Source` that miette will use.
+    #[source_code]
     src: String,
 
-    // A snippet that points to `src`, our `Source`.
-    #[snippet(
-        src,
-        message("This is the snippet")
-    )]
-    snip: SourceSpan,
-
-    // A highlight for the `snip` snippet we defined above. This will
-    // underline/mark the specific code inside the larger snippet context.
-    #[highlight(snip, label("This is the highlight"))]
+    // This will underline/mark the specific code inside the larger
+    // snippet context.
+    #[label = "This is the highlight"]
     err_span: SourceSpan,
 
-    // You can add as many snippets as you want against the same Source.
+    // You can add as many labels as you want.
     // They'll be rendered sequentially.
-    #[snippet(
-        src,
-        message("This is a warning")
-    )]
+    #[label("This is bad")]
     snip2: SourceSpan,
 }
 ```

src/eyreish/mod.rs

@@ -148,7 +148,7 @@ pub trait ReportHandler: core::any::Any + Send + Sync {
     /// impl ReportHandler for Handler {
     ///     fn debug(
     ///         &self,
-    ///         error: &(dyn Diagnostic + 'static),
+    ///         error: &dyn Diagnostic,
     ///         f: &mut core::fmt::Formatter<'_>,
     ///     ) -> core::fmt::Result {
     ///         use core::fmt::Write as _;

tests/test_location.rs

@@ -17,11 +17,7 @@ impl LocationHandler {
 }
 
 impl miette::ReportHandler for LocationHandler {
-    fn debug(
-        &self,
-        _error: &(dyn Diagnostic + 'static),
-        _f: &mut std::fmt::Formatter<'_>,
-    ) -> std::fmt::Result {
+    fn debug(&self, _error: &dyn Diagnostic, _f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         // we assume that if the compiler is new enough to support
         // `track_caller` that we will always have `actual` be `Some`, so we can
         // safely skip the assertion if the location is `None` which should only