From e1af85d3dd6ad595cedc0c344418ab0a60f1ce72 Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Wed, 27 Sep 2023 22:51:07 +0200
Subject: [PATCH] Very simple repair to Span::start() and Span::end() in
 proc_macro context

---
 src/wrapper.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/wrapper.rs b/src/wrapper.rs
index 860b6b7..59fa5b3 100644
--- a/src/wrapper.rs
+++ b/src/wrapper.rs
@@ -448,6 +448,12 @@ impl Span {
     #[cfg(span_locations)]
     pub fn start(&self) -> LineColumn {
         match self {
+            #[cfg(proc_macro_span)]
+            Span::Compiler(s) => LineColumn {
+                line: s.line(),
+                column: s.column(),
+            },
+            #[cfg(not(proc_macro_span))]
             Span::Compiler(_) => LineColumn { line: 0, column: 0 },
             Span::Fallback(s) => s.start(),
         }
@@ -456,6 +462,12 @@ impl Span {
     #[cfg(span_locations)]
     pub fn end(&self) -> LineColumn {
         match self {
+            #[cfg(proc_macro_span)]
+            Span::Compiler(s) => LineColumn {
+                line: s.end().line(),
+                column: s.end().column(),
+            },
+            #[cfg(not(proc_macro_span))]
             Span::Compiler(_) => LineColumn { line: 0, column: 0 },
             Span::Fallback(s) => s.end(),
         }