Auto merge of #141869 - GuillaumeGomez:rollup-vicg807, r=GuillaumeGomez

Rollup of 9 pull requests

Successful merges:

 - rust-lang/rust#140370 (Improve diagnostics for usage of qualified paths within tuple struct exprs/pats)
 - rust-lang/rust#141224 (terminology: allocated object → allocation)
 - rust-lang/rust#141622 (implement `va_arg` for `powerpc`)
 - rust-lang/rust#141666 (source_span_for_markdown_range: fix utf8 violation)
 - rust-lang/rust#141789 (Exclude `CARGO_HOME` from `generate-copyright` in-tree determination)
 - rust-lang/rust#141823 (Drive-by refactor: use `OnceCell` for the reverse region SCC graph)
 - rust-lang/rust#141834 (Add unimplemented `current_dll_path()` for WASI)
 - rust-lang/rust#141846 (Fix TLS model on bootstrap for cygwin)
 - rust-lang/rust#141852 (resolve if-let-chain FIXME on bootstrap)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 50 insertions, 0 deletions

diff --git a/compiler/rustc_resolve/src/rustdoc/tests.rs b/compiler/rustc_resolve/src/rustdoc/tests.rs
new file mode 100644
index 00000000000..221ac907e7c
--- /dev/null
+++ b/compiler/rustc_resolve/src/rustdoc/tests.rs
@@ -0,0 +1,50 @@
+use std::path::PathBuf;
+
+use rustc_span::source_map::{FilePathMapping, SourceMap};
+use rustc_span::symbol::sym;
+use rustc_span::{BytePos, Span};
+
+use super::{DocFragment, DocFragmentKind, source_span_for_markdown_range_inner};
+
+#[test]
+fn single_backtick() {
+    let sm = SourceMap::new(FilePathMapping::empty());
+    sm.new_source_file(PathBuf::from("foo.rs").into(), r#"#[doc = "`"] fn foo() {}"#.to_string());
+    let span = source_span_for_markdown_range_inner(
+        &sm,
+        "`",
+        &(0..1),
+        &[DocFragment {
+            span: Span::with_root_ctxt(BytePos(8), BytePos(11)),
+            item_id: None,
+            kind: DocFragmentKind::RawDoc,
+            doc: sym::empty, // unused placeholder
+            indent: 0,
+        }],
+    )
+    .unwrap();
+    assert_eq!(span.lo(), BytePos(9));
+    assert_eq!(span.hi(), BytePos(10));
+}
+
+#[test]
+fn utf8() {
+    // regression test for https://github.com/rust-lang/rust/issues/141665
+    let sm = SourceMap::new(FilePathMapping::empty());
+    sm.new_source_file(PathBuf::from("foo.rs").into(), r#"#[doc = "⚠"] fn foo() {}"#.to_string());
+    let span = source_span_for_markdown_range_inner(
+        &sm,
+        "⚠",
+        &(0..3),
+        &[DocFragment {
+            span: Span::with_root_ctxt(BytePos(8), BytePos(14)),
+            item_id: None,
+            kind: DocFragmentKind::RawDoc,
+            doc: sym::empty, // unused placeholder
+            indent: 0,
+        }],
+    )
+    .unwrap();
+    assert_eq!(span.lo(), BytePos(9));
+    assert_eq!(span.hi(), BytePos(12));
+}