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-rw-r--r--src/test/rustdoc-ui/check-doc-alias-attr.rs14
-rw-r--r--src/test/rustdoc-ui/check-doc-alias-attr.stderr72
-rw-r--r--src/test/ui/rustdoc/check-doc-alias-attr.rs14
-rw-r--r--src/test/ui/rustdoc/check-doc-alias-attr.stderr72
4 files changed, 148 insertions, 24 deletions
diff --git a/src/test/rustdoc-ui/check-doc-alias-attr.rs b/src/test/rustdoc-ui/check-doc-alias-attr.rs
index 912e35f9165..719b98604c4 100644
--- a/src/test/rustdoc-ui/check-doc-alias-attr.rs
+++ b/src/test/rustdoc-ui/check-doc-alias-attr.rs
@@ -1,11 +1,11 @@
 #![crate_type = "lib"]
 
 #[doc(alias = "foo")] // ok!
+#[doc(alias("bar", "baz"))] // ok!
 pub struct Bar;
 
 #[doc(alias)] //~ ERROR
 #[doc(alias = 0)] //~ ERROR
-#[doc(alias("bar"))] //~ ERROR
 #[doc(alias = "\"")] //~ ERROR
 #[doc(alias = "\n")] //~ ERROR
 #[doc(alias = "
@@ -13,4 +13,16 @@ pub struct Bar;
 #[doc(alias = "\t")] //~ ERROR
 #[doc(alias = " hello")] //~ ERROR
 #[doc(alias = "hello ")] //~ ERROR
+#[doc(alias = "")] //~ ERROR
 pub struct Foo;
+
+#[doc(alias(0))] //~ ERROR
+#[doc(alias("\""))] //~ ERROR
+#[doc(alias("\n"))] //~ ERROR
+#[doc(alias("
+"))] //~^ ERROR
+#[doc(alias("\t"))] //~ ERROR
+#[doc(alias(" hello"))] //~ ERROR
+#[doc(alias("hello "))] //~ ERROR
+#[doc(alias(""))] //~ ERROR
+pub struct Foo2;
diff --git a/src/test/rustdoc-ui/check-doc-alias-attr.stderr b/src/test/rustdoc-ui/check-doc-alias-attr.stderr
index 1c7fc83bb8d..f99d69dc101 100644
--- a/src/test/rustdoc-ui/check-doc-alias-attr.stderr
+++ b/src/test/rustdoc-ui/check-doc-alias-attr.stderr
@@ -1,21 +1,15 @@
-error: doc alias attribute expects a string: #[doc(alias = "a")]
-  --> $DIR/check-doc-alias-attr.rs:6:7
+error: doc alias attribute expects a string `#[doc(alias = "a")]` or a list of strings `#[doc(alias("a", "b"))]`
+  --> $DIR/check-doc-alias-attr.rs:7:7
    |
 LL | #[doc(alias)]
    |       ^^^^^
 
-error: doc alias attribute expects a string: #[doc(alias = "a")]
-  --> $DIR/check-doc-alias-attr.rs:7:7
+error: doc alias attribute expects a string `#[doc(alias = "a")]` or a list of strings `#[doc(alias("a", "b"))]`
+  --> $DIR/check-doc-alias-attr.rs:8:7
    |
 LL | #[doc(alias = 0)]
    |       ^^^^^^^^^
 
-error: doc alias attribute expects a string: #[doc(alias = "a")]
-  --> $DIR/check-doc-alias-attr.rs:8:7
-   |
-LL | #[doc(alias("bar"))]
-   |       ^^^^^^^^^^^^
-
 error: '\"' character isn't allowed in `#[doc(alias = "...")]`
   --> $DIR/check-doc-alias-attr.rs:9:15
    |
@@ -54,5 +48,61 @@ error: `#[doc(alias = "...")]` cannot start or end with ' '
 LL | #[doc(alias = "hello ")]
    |               ^^^^^^^^
 
-error: aborting due to 9 previous errors
+error: `#[doc(alias = "...")]` attribute cannot have empty value
+  --> $DIR/check-doc-alias-attr.rs:16:15
+   |
+LL | #[doc(alias = "")]
+   |               ^^
+
+error: `#[doc(alias("a"))]` expects string literals
+  --> $DIR/check-doc-alias-attr.rs:19:13
+   |
+LL | #[doc(alias(0))]
+   |             ^
+
+error: '\"' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:20:13
+   |
+LL | #[doc(alias("\""))]
+   |             ^^^^
+
+error: '\n' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:21:13
+   |
+LL | #[doc(alias("\n"))]
+   |             ^^^^
+
+error: '\n' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:22:13
+   |
+LL |   #[doc(alias("
+   |  _____________^
+LL | | "))]
+   | |_^
+
+error: '\t' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:24:13
+   |
+LL | #[doc(alias("\t"))]
+   |             ^^^^
+
+error: `#[doc(alias("..."))]` cannot start or end with ' '
+  --> $DIR/check-doc-alias-attr.rs:25:13
+   |
+LL | #[doc(alias(" hello"))]
+   |             ^^^^^^^^
+
+error: `#[doc(alias("..."))]` cannot start or end with ' '
+  --> $DIR/check-doc-alias-attr.rs:26:13
+   |
+LL | #[doc(alias("hello "))]
+   |             ^^^^^^^^
+
+error: `#[doc(alias("..."))]` attribute cannot have empty value
+  --> $DIR/check-doc-alias-attr.rs:27:13
+   |
+LL | #[doc(alias(""))]
+   |             ^^
+
+error: aborting due to 17 previous errors
 
diff --git a/src/test/ui/rustdoc/check-doc-alias-attr.rs b/src/test/ui/rustdoc/check-doc-alias-attr.rs
index 912e35f9165..719b98604c4 100644
--- a/src/test/ui/rustdoc/check-doc-alias-attr.rs
+++ b/src/test/ui/rustdoc/check-doc-alias-attr.rs
@@ -1,11 +1,11 @@
 #![crate_type = "lib"]
 
 #[doc(alias = "foo")] // ok!
+#[doc(alias("bar", "baz"))] // ok!
 pub struct Bar;
 
 #[doc(alias)] //~ ERROR
 #[doc(alias = 0)] //~ ERROR
-#[doc(alias("bar"))] //~ ERROR
 #[doc(alias = "\"")] //~ ERROR
 #[doc(alias = "\n")] //~ ERROR
 #[doc(alias = "
@@ -13,4 +13,16 @@ pub struct Bar;
 #[doc(alias = "\t")] //~ ERROR
 #[doc(alias = " hello")] //~ ERROR
 #[doc(alias = "hello ")] //~ ERROR
+#[doc(alias = "")] //~ ERROR
 pub struct Foo;
+
+#[doc(alias(0))] //~ ERROR
+#[doc(alias("\""))] //~ ERROR
+#[doc(alias("\n"))] //~ ERROR
+#[doc(alias("
+"))] //~^ ERROR
+#[doc(alias("\t"))] //~ ERROR
+#[doc(alias(" hello"))] //~ ERROR
+#[doc(alias("hello "))] //~ ERROR
+#[doc(alias(""))] //~ ERROR
+pub struct Foo2;
diff --git a/src/test/ui/rustdoc/check-doc-alias-attr.stderr b/src/test/ui/rustdoc/check-doc-alias-attr.stderr
index 1c7fc83bb8d..f99d69dc101 100644
--- a/src/test/ui/rustdoc/check-doc-alias-attr.stderr
+++ b/src/test/ui/rustdoc/check-doc-alias-attr.stderr
@@ -1,21 +1,15 @@
-error: doc alias attribute expects a string: #[doc(alias = "a")]
-  --> $DIR/check-doc-alias-attr.rs:6:7
+error: doc alias attribute expects a string `#[doc(alias = "a")]` or a list of strings `#[doc(alias("a", "b"))]`
+  --> $DIR/check-doc-alias-attr.rs:7:7
    |
 LL | #[doc(alias)]
    |       ^^^^^
 
-error: doc alias attribute expects a string: #[doc(alias = "a")]
-  --> $DIR/check-doc-alias-attr.rs:7:7
+error: doc alias attribute expects a string `#[doc(alias = "a")]` or a list of strings `#[doc(alias("a", "b"))]`
+  --> $DIR/check-doc-alias-attr.rs:8:7
    |
 LL | #[doc(alias = 0)]
    |       ^^^^^^^^^
 
-error: doc alias attribute expects a string: #[doc(alias = "a")]
-  --> $DIR/check-doc-alias-attr.rs:8:7
-   |
-LL | #[doc(alias("bar"))]
-   |       ^^^^^^^^^^^^
-
 error: '\"' character isn't allowed in `#[doc(alias = "...")]`
   --> $DIR/check-doc-alias-attr.rs:9:15
    |
@@ -54,5 +48,61 @@ error: `#[doc(alias = "...")]` cannot start or end with ' '
 LL | #[doc(alias = "hello ")]
    |               ^^^^^^^^
 
-error: aborting due to 9 previous errors
+error: `#[doc(alias = "...")]` attribute cannot have empty value
+  --> $DIR/check-doc-alias-attr.rs:16:15
+   |
+LL | #[doc(alias = "")]
+   |               ^^
+
+error: `#[doc(alias("a"))]` expects string literals
+  --> $DIR/check-doc-alias-attr.rs:19:13
+   |
+LL | #[doc(alias(0))]
+   |             ^
+
+error: '\"' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:20:13
+   |
+LL | #[doc(alias("\""))]
+   |             ^^^^
+
+error: '\n' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:21:13
+   |
+LL | #[doc(alias("\n"))]
+   |             ^^^^
+
+error: '\n' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:22:13
+   |
+LL |   #[doc(alias("
+   |  _____________^
+LL | | "))]
+   | |_^
+
+error: '\t' character isn't allowed in `#[doc(alias("..."))]`
+  --> $DIR/check-doc-alias-attr.rs:24:13
+   |
+LL | #[doc(alias("\t"))]
+   |             ^^^^
+
+error: `#[doc(alias("..."))]` cannot start or end with ' '
+  --> $DIR/check-doc-alias-attr.rs:25:13
+   |
+LL | #[doc(alias(" hello"))]
+   |             ^^^^^^^^
+
+error: `#[doc(alias("..."))]` cannot start or end with ' '
+  --> $DIR/check-doc-alias-attr.rs:26:13
+   |
+LL | #[doc(alias("hello "))]
+   |             ^^^^^^^^
+
+error: `#[doc(alias("..."))]` attribute cannot have empty value
+  --> $DIR/check-doc-alias-attr.rs:27:13
+   |
+LL | #[doc(alias(""))]
+   |             ^^
+
+error: aborting due to 17 previous errors
generated by cgit-pink 1.4.1-3-g733a5 (git 2.37.1) at 2026-05-04 08:52:31 +0000