Auto merge of #142432 - matthiaskrgr:rollup-ziuls9y, r=matthiaskrgr

Rollup of 6 pull requests

Successful merges:

 - rust-lang/rust#138016 (Added `Clone` implementation for `ChunkBy`)
 - rust-lang/rust#141162 (refactor  `AttributeGate` and `rustc_attr!` to emit notes during feature checking)
 - rust-lang/rust#141474 (Add `ParseMode::Diagnostic` and fix multiline spans in diagnostic attribute lints)
 - rust-lang/rust#141947 (Specify that "option-like" enums must be `#[repr(Rust)]` to be ABI-compatible with their non-1ZST field.)
 - rust-lang/rust#142252 (Improve clarity of `core::sync::atomic` docs about "Considerations" in regards to CAS operations)
 - rust-lang/rust#142337 (miri: add flag to suppress float non-determinism)

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

1 files changed, 42 insertions, 0 deletions

diff --git a/compiler/rustc_parse_format/src/tests.rs b/compiler/rustc_parse_format/src/tests.rs
index e6a7f24034a..a6c7e1890ab 100644
--- a/compiler/rustc_parse_format/src/tests.rs
+++ b/compiler/rustc_parse_format/src/tests.rs
@@ -553,3 +553,45 @@ fn asm_concat() {
     assert_eq!(parser.by_ref().collect::<Vec<Piece<'static>>>(), &[Lit(asm)]);
     assert_eq!(parser.line_spans, &[]);
 }
+
+#[test]
+fn diagnostic_format_flags() {
+    let lit = "{thing:blah}";
+    let mut parser = Parser::new(lit, None, None, false, ParseMode::Diagnostic);
+    assert!(!parser.is_source_literal);
+
+    let [NextArgument(arg)] = &*parser.by_ref().collect::<Vec<Piece<'static>>>() else { panic!() };
+
+    assert_eq!(
+        **arg,
+        Argument {
+            position: ArgumentNamed("thing"),
+            position_span: 2..7,
+            format: FormatSpec { ty: ":blah", ty_span: Some(7..12), ..Default::default() },
+        }
+    );
+
+    assert_eq!(parser.line_spans, &[]);
+    assert!(parser.errors.is_empty());
+}
+
+#[test]
+fn diagnostic_format_mod() {
+    let lit = "{thing:+}";
+    let mut parser = Parser::new(lit, None, None, false, ParseMode::Diagnostic);
+    assert!(!parser.is_source_literal);
+
+    let [NextArgument(arg)] = &*parser.by_ref().collect::<Vec<Piece<'static>>>() else { panic!() };
+
+    assert_eq!(
+        **arg,
+        Argument {
+            position: ArgumentNamed("thing"),
+            position_span: 2..7,
+            format: FormatSpec { ty: ":+", ty_span: Some(7..9), ..Default::default() },
+        }
+    );
+
+    assert_eq!(parser.line_spans, &[]);
+    assert!(parser.errors.is_empty());
+}