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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:58 +0000
commita4b7ed7a42c716ab9f05e351f003d589124fd55d (patch)
treeb620cd3f223850b28716e474e80c58059dca5dd4 /tests/ui/inference/need_type_info/type-alias.rs
parentAdding upstream version 1.67.1+dfsg1. (diff)
downloadrustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz
rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/inference/need_type_info/type-alias.rs')
-rw-r--r--tests/ui/inference/need_type_info/type-alias.rs36
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/inference/need_type_info/type-alias.rs b/tests/ui/inference/need_type_info/type-alias.rs
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index 000000000..f921b046b
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+++ b/tests/ui/inference/need_type_info/type-alias.rs
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+// Test the inference errors in case the relevant path
+// uses a type alias.
+//
+// Regression test for #97698.
+struct Ty<T>(T);
+impl<T> Ty<T> {
+ fn new() {}
+}
+
+type DirectAlias<T> = Ty<T>;
+fn direct_alias() {
+ DirectAlias::new()
+ //~^ ERROR type annotations needed
+}
+
+type IndirectAlias<T> = Ty<Box<T>>;
+fn indirect_alias() {
+ IndirectAlias::new();
+ // FIXME: This should also emit an error.
+ //
+ // Added it separately as `type-alias-indirect.rs`
+ // where it does error.
+}
+
+struct TyDefault<T, U = u32>(T, U);
+impl<T> TyDefault<T> {
+ fn new() {}
+}
+
+type DirectButWithDefaultAlias<T> = TyDefault<T>;
+fn direct_but_with_default_alias() {
+ DirectButWithDefaultAlias::new();
+ //~^ ERROR type annotations needed
+}
+
+fn main() {}