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-rw-r--r--tests/rustdoc-json/attrs/repr_align.rs2
-rw-r--r--tests/rustdoc-json/attrs/repr_c.rs6
-rw-r--r--tests/rustdoc-json/attrs/repr_combination.rs23
-rw-r--r--tests/rustdoc-json/attrs/repr_int_enum.rs6
-rw-r--r--tests/rustdoc-json/attrs/repr_packed.rs8
-rw-r--r--tests/rustdoc-json/attrs/repr_transparent.rs29
-rw-r--r--tests/rustdoc-json/enums/discriminant/struct.rs2
-rw-r--r--tests/rustdoc-json/enums/discriminant/tuple.rs2
-rw-r--r--tests/ui/lint/linker-warning.stderr2
9 files changed, 48 insertions, 32 deletions
diff --git a/tests/rustdoc-json/attrs/repr_align.rs b/tests/rustdoc-json/attrs/repr_align.rs
index 83506737b21..c6debda7f1c 100644
--- a/tests/rustdoc-json/attrs/repr_align.rs
+++ b/tests/rustdoc-json/attrs/repr_align.rs
@@ -1,6 +1,6 @@
 #![no_std]
 
-//@ is "$.index[?(@.name=='Aligned')].attrs" '["#[attr = Repr([ReprAlign(Align(4 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='Aligned')].attrs" '["#[repr(align(4))]"]'
 #[repr(align(4))]
 pub struct Aligned {
     a: i8,
diff --git a/tests/rustdoc-json/attrs/repr_c.rs b/tests/rustdoc-json/attrs/repr_c.rs
index 018086b3c1f..e6219413f30 100644
--- a/tests/rustdoc-json/attrs/repr_c.rs
+++ b/tests/rustdoc-json/attrs/repr_c.rs
@@ -1,16 +1,16 @@
 #![no_std]
 
-//@ is "$.index[?(@.name=='ReprCStruct')].attrs" '["#[attr = Repr([ReprC])]\n"]'
+//@ is "$.index[?(@.name=='ReprCStruct')].attrs" '["#[repr(C)]"]'
 #[repr(C)]
 pub struct ReprCStruct(pub i64);
 
-//@ is "$.index[?(@.name=='ReprCEnum')].attrs" '["#[attr = Repr([ReprC])]\n"]'
+//@ is "$.index[?(@.name=='ReprCEnum')].attrs" '["#[repr(C)]"]'
 #[repr(C)]
 pub enum ReprCEnum {
     First,
 }
 
-//@ is "$.index[?(@.name=='ReprCUnion')].attrs" '["#[attr = Repr([ReprC])]\n"]'
+//@ is "$.index[?(@.name=='ReprCUnion')].attrs" '["#[repr(C)]"]'
 #[repr(C)]
 pub union ReprCUnion {
     pub left: i64,
diff --git a/tests/rustdoc-json/attrs/repr_combination.rs b/tests/rustdoc-json/attrs/repr_combination.rs
index c3ef8becb77..0e8e2ef0d83 100644
--- a/tests/rustdoc-json/attrs/repr_combination.rs
+++ b/tests/rustdoc-json/attrs/repr_combination.rs
@@ -1,34 +1,35 @@
 #![no_std]
 
 // Combinations of `#[repr(..)]` attributes.
+// Rustdoc JSON emits normalized output, regardless of the original source.
 
-//@ is "$.index[?(@.name=='ReprCI8')].attrs" '["#[attr = Repr([ReprC, ReprInt(SignedInt(I8))])]\n"]'
+//@ is "$.index[?(@.name=='ReprCI8')].attrs" '["#[repr(C, i8)]"]'
 #[repr(C, i8)]
 pub enum ReprCI8 {
     First,
 }
 
-//@ is "$.index[?(@.name=='SeparateReprCI16')].attrs" '["#[attr = Repr([ReprC, ReprInt(SignedInt(I16))])]\n"]'
+//@ is "$.index[?(@.name=='SeparateReprCI16')].attrs" '["#[repr(C, i16)]"]'
 #[repr(C)]
 #[repr(i16)]
 pub enum SeparateReprCI16 {
     First,
 }
 
-//@ is "$.index[?(@.name=='ReversedReprCUsize')].attrs" '["#[attr = Repr([ReprInt(UnsignedInt(Usize)), ReprC])]\n"]'
+//@ is "$.index[?(@.name=='ReversedReprCUsize')].attrs" '["#[repr(C, usize)]"]'
 #[repr(usize, C)]
 pub enum ReversedReprCUsize {
     First,
 }
 
-//@ is "$.index[?(@.name=='ReprCPacked')].attrs" '["#[attr = Repr([ReprC, ReprPacked(Align(1 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='ReprCPacked')].attrs" '["#[repr(C, packed(1))]"]'
 #[repr(C, packed)]
 pub struct ReprCPacked {
     a: i8,
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='SeparateReprCPacked')].attrs" '["#[attr = Repr([ReprC, ReprPacked(Align(2 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='SeparateReprCPacked')].attrs" '["#[repr(C, packed(2))]"]'
 #[repr(C)]
 #[repr(packed(2))]
 pub struct SeparateReprCPacked {
@@ -36,21 +37,21 @@ pub struct SeparateReprCPacked {
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='ReversedReprCPacked')].attrs" '["#[attr = Repr([ReprPacked(Align(2 bytes)), ReprC])]\n"]'
+//@ is "$.index[?(@.name=='ReversedReprCPacked')].attrs" '["#[repr(C, packed(2))]"]'
 #[repr(packed(2), C)]
 pub struct ReversedReprCPacked {
     a: i8,
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='ReprCAlign')].attrs" '["#[attr = Repr([ReprC, ReprAlign(Align(16 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='ReprCAlign')].attrs" '["#[repr(C, align(16))]"]'
 #[repr(C, align(16))]
 pub struct ReprCAlign {
     a: i8,
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='SeparateReprCAlign')].attrs" '["#[attr = Repr([ReprC, ReprAlign(Align(2 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='SeparateReprCAlign')].attrs" '["#[repr(C, align(2))]"]'
 #[repr(C)]
 #[repr(align(2))]
 pub struct SeparateReprCAlign {
@@ -58,20 +59,20 @@ pub struct SeparateReprCAlign {
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='ReversedReprCAlign')].attrs" '["#[attr = Repr([ReprAlign(Align(2 bytes)), ReprC])]\n"]'
+//@ is "$.index[?(@.name=='ReversedReprCAlign')].attrs" '["#[repr(C, align(2))]"]'
 #[repr(align(2), C)]
 pub struct ReversedReprCAlign {
     a: i8,
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='AlignedExplicitRepr')].attrs" '["#[attr = Repr([ReprC, ReprAlign(Align(16 bytes)), ReprInt(SignedInt(Isize))])]\n"]'
+//@ is "$.index[?(@.name=='AlignedExplicitRepr')].attrs" '["#[repr(C, align(16), isize)]"]'
 #[repr(C, align(16), isize)]
 pub enum AlignedExplicitRepr {
     First,
 }
 
-//@ is "$.index[?(@.name=='ReorderedAlignedExplicitRepr')].attrs" '["#[attr = Repr([ReprInt(SignedInt(Isize)), ReprC, ReprAlign(Align(16 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='ReorderedAlignedExplicitRepr')].attrs" '["#[repr(C, align(16), isize)]"]'
 #[repr(isize, C, align(16))]
 pub enum ReorderedAlignedExplicitRepr {
     First,
diff --git a/tests/rustdoc-json/attrs/repr_int_enum.rs b/tests/rustdoc-json/attrs/repr_int_enum.rs
index 206cb7835f5..9b09f341d4f 100644
--- a/tests/rustdoc-json/attrs/repr_int_enum.rs
+++ b/tests/rustdoc-json/attrs/repr_int_enum.rs
@@ -1,18 +1,18 @@
 #![no_std]
 
-//@ is "$.index[?(@.name=='I8')].attrs" '["#[attr = Repr([ReprInt(SignedInt(I8))])]\n"]'
+//@ is "$.index[?(@.name=='I8')].attrs" '["#[repr(i8)]"]'
 #[repr(i8)]
 pub enum I8 {
     First,
 }
 
-//@ is "$.index[?(@.name=='I32')].attrs" '["#[attr = Repr([ReprInt(SignedInt(I32))])]\n"]'
+//@ is "$.index[?(@.name=='I32')].attrs" '["#[repr(i32)]"]'
 #[repr(i32)]
 pub enum I32 {
     First,
 }
 
-//@ is "$.index[?(@.name=='Usize')].attrs" '["#[attr = Repr([ReprInt(UnsignedInt(Usize))])]\n"]'
+//@ is "$.index[?(@.name=='Usize')].attrs" '["#[repr(usize)]"]'
 #[repr(usize)]
 pub enum Usize {
     First,
diff --git a/tests/rustdoc-json/attrs/repr_packed.rs b/tests/rustdoc-json/attrs/repr_packed.rs
index d4c400f72f8..9f3fd86c4b0 100644
--- a/tests/rustdoc-json/attrs/repr_packed.rs
+++ b/tests/rustdoc-json/attrs/repr_packed.rs
@@ -1,16 +1,16 @@
 #![no_std]
 
 // Note the normalization:
-// `#[repr(packed)]` in has the implict "1" in rustdoc JSON.
-
-//@ is "$.index[?(@.name=='Packed')].attrs" '["#[attr = Repr([ReprPacked(Align(1 bytes))])]\n"]'
+// `#[repr(packed)]` in source becomes `#[repr(packed(1))]` in rustdoc JSON.
+//
+//@ is "$.index[?(@.name=='Packed')].attrs" '["#[repr(packed(1))]"]'
 #[repr(packed)]
 pub struct Packed {
     a: i8,
     b: i64,
 }
 
-//@ is "$.index[?(@.name=='PackedAligned')].attrs" '["#[attr = Repr([ReprPacked(Align(4 bytes))])]\n"]'
+//@ is "$.index[?(@.name=='PackedAligned')].attrs" '["#[repr(packed(4))]"]'
 #[repr(packed(4))]
 pub struct PackedAligned {
     a: i8,
diff --git a/tests/rustdoc-json/attrs/repr_transparent.rs b/tests/rustdoc-json/attrs/repr_transparent.rs
index 3f57b21dcc5..1e634ca901d 100644
--- a/tests/rustdoc-json/attrs/repr_transparent.rs
+++ b/tests/rustdoc-json/attrs/repr_transparent.rs
@@ -1,22 +1,37 @@
 #![no_std]
 
-// Rustdoc JSON currently includes `#[repr(transparent)]`
-// even if the transparency is not part of the public API
+// Rustdoc JSON *only* includes `#[repr(transparent)]`
+// if the transparency is public API:
+// - if a non-1-ZST field exists, it has to be public
+// - otherwise, all fields are 1-ZST and at least one of them is public
 //
-// https://doc.rust-lang.org/nomicon/other-reprs.html#reprtransparent
+// More info: https://doc.rust-lang.org/nomicon/other-reprs.html#reprtransparent
 
-//@ is "$.index[?(@.name=='Transparent')].attrs" '["#[attr = Repr([ReprTransparent])]\n"]'
+// Here, the non-1-ZST field is public.
+// We expect `#[repr(transparent)]` in the attributes.
+//
+//@ is "$.index[?(@.name=='Transparent')].attrs" '["#[repr(transparent)]"]'
 #[repr(transparent)]
 pub struct Transparent(pub i64);
 
-//@ is "$.index[?(@.name=='TransparentNonPub')].attrs" '["#[attr = Repr([ReprTransparent])]\n"]'
+// Here the non-1-ZST field isn't public, so the attribute isn't included.
+//
+//@ has "$.index[?(@.name=='TransparentNonPub')]"
+//@ is "$.index[?(@.name=='TransparentNonPub')].attrs" '[]'
 #[repr(transparent)]
 pub struct TransparentNonPub(i64);
 
-//@ is "$.index[?(@.name=='AllZst')].attrs" '["#[attr = Repr([ReprTransparent])]\n"]'
+// Only 1-ZST fields here, and one of them is public.
+// We expect `#[repr(transparent)]` in the attributes.
+//
+//@ is "$.index[?(@.name=='AllZst')].attrs" '["#[repr(transparent)]"]'
 #[repr(transparent)]
 pub struct AllZst<'a>(pub core::marker::PhantomData<&'a ()>, ());
 
-//@ is "$.index[?(@.name=='AllZstNotPublic')].attrs" '["#[attr = Repr([ReprTransparent])]\n"]'
+// Only 1-ZST fields here but none of them are public.
+// The attribute isn't included.
+//
+//@ has "$.index[?(@.name=='AllZstNotPublic')]"
+//@ is "$.index[?(@.name=='AllZstNotPublic')].attrs" '[]'
 #[repr(transparent)]
 pub struct AllZstNotPublic<'a>(core::marker::PhantomData<&'a ()>, ());
diff --git a/tests/rustdoc-json/enums/discriminant/struct.rs b/tests/rustdoc-json/enums/discriminant/struct.rs
index 08fb80540fa..ea669e6a0b3 100644
--- a/tests/rustdoc-json/enums/discriminant/struct.rs
+++ b/tests/rustdoc-json/enums/discriminant/struct.rs
@@ -1,5 +1,5 @@
 #[repr(i32)]
-//@ is "$.index[?(@.name=='Foo')].attrs" '["#[attr = Repr([ReprInt(SignedInt(I32))])]\n"]'
+//@ is "$.index[?(@.name=='Foo')].attrs" '["#[repr(i32)]"]'
 pub enum Foo {
     //@ is    "$.index[?(@.name=='Struct')].inner.variant.discriminant" null
     //@ count "$.index[?(@.name=='Struct')].inner.variant.kind.struct.fields[*]" 0
diff --git a/tests/rustdoc-json/enums/discriminant/tuple.rs b/tests/rustdoc-json/enums/discriminant/tuple.rs
index c74e9a2c58d..1b8e791eb23 100644
--- a/tests/rustdoc-json/enums/discriminant/tuple.rs
+++ b/tests/rustdoc-json/enums/discriminant/tuple.rs
@@ -1,5 +1,5 @@
 #[repr(u32)]
-//@ is "$.index[?(@.name=='Foo')].attrs" '["#[attr = Repr([ReprInt(UnsignedInt(U32))])]\n"]'
+//@ is "$.index[?(@.name=='Foo')].attrs" '["#[repr(u32)]"]'
 pub enum Foo {
     //@ is    "$.index[?(@.name=='Tuple')].inner.variant.discriminant" null
     //@ count "$.index[?(@.name=='Tuple')].inner.variant.kind.tuple[*]" 0
diff --git a/tests/ui/lint/linker-warning.stderr b/tests/ui/lint/linker-warning.stderr
index 3a2c392fd03..c678562ab54 100644
--- a/tests/ui/lint/linker-warning.stderr
+++ b/tests/ui/lint/linker-warning.stderr
@@ -16,7 +16,7 @@ warning: unused attribute
 LL | #![allow(linker_messages)]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove this attribute
    |
-   = note: the `linker_warnings` lint can only be controlled at the root of a crate that needs to be linked
+   = note: the `linker_messages` lint can only be controlled at the root of a crate that needs to be linked
 
 warning: 2 warnings emitted
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-01-14 17:04:16 +0000