1 files changed, 90 insertions, 0 deletions
diff --git a/tests/incremental/issue-110457-same-span-closures/auxiliary/egui_inspect_derive.rs b/tests/incremental/issue-110457-same-span-closures/auxiliary/egui_inspect_derive.rs
new file mode 100644
index 000000000..e7d91235e
--- /dev/null
+++ b/tests/incremental/issue-110457-same-span-closures/auxiliary/egui_inspect_derive.rs
@@ -0,0 +1,90 @@
+// force-host
+// no-prefer-dynamic
+#![crate_type = "proc-macro"]
+
+extern crate proc_macro;
+
+use proc_macro::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
+
+#[proc_macro]
+pub fn expand(_: TokenStream) -> TokenStream {
+    // Hand expansion/rewriting of
+    // ```
+    // quote! {
+    //     output_mut(|o| o.copied_text = "".into());
+    //     output_mut(|o| o.copied_text = format!("{:?}", self.tile_db));
+    // }.into()
+    // ```
+    stream([
+        ident("output_mut"),
+        group(
+            Delimiter::Parenthesis,
+            [
+                or(),
+                ident("o"),
+                or(),
+                ident("o"),
+                dot(),
+                ident("copied_text"),
+                eq(),
+                string(""),
+                dot(),
+                ident("into"),
+                group(Delimiter::Parenthesis, []),
+            ],
+        ),
+        semi(),
+        ident("output_mut"),
+        group(
+            Delimiter::Parenthesis,
+            [
+                or(),
+                ident("o"),
+                or(),
+                ident("o"),
+                dot(),
+                ident("copied_text"),
+                eq(),
+                ident("format"),
+                bang(),
+                group(
+                    Delimiter::Parenthesis,
+                    [string("{:?}"), comma(), ident("self"), dot(), ident("tile_db")],
+                ),
+            ],
+        ),
+        semi(),
+    ])
+}
+
+fn stream(s: impl IntoIterator<Item = TokenTree>) -> TokenStream {
+    s.into_iter().collect()
+}
+
+fn ident(i: &str) -> TokenTree {
+    TokenTree::Ident(Ident::new(i, Span::call_site()))
+}
+fn group(d: Delimiter, s: impl IntoIterator<Item = TokenTree>) -> TokenTree {
+    TokenTree::Group(Group::new(d, s.into_iter().collect()))
+}
+fn semi() -> TokenTree {
+    TokenTree::Punct(Punct::new(';', Spacing::Alone))
+}
+fn or() -> TokenTree {
+    TokenTree::Punct(Punct::new('|', Spacing::Alone))
+}
+fn dot() -> TokenTree {
+    TokenTree::Punct(Punct::new('.', Spacing::Alone))
+}
+fn eq() -> TokenTree {
+    TokenTree::Punct(Punct::new('=', Spacing::Alone))
+}
+fn bang() -> TokenTree {
+    TokenTree::Punct(Punct::new('!', Spacing::Alone))
+}
+fn comma() -> TokenTree {
+    TokenTree::Punct(Punct::new(',', Spacing::Alone))
+}
+fn string(s: &str) -> TokenTree {
+    TokenTree::Literal(Literal::string(s))
+}