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authorb-naber <bn263@gmx.de>2022-09-23 14:03:13 +0200
committerb-naber <bn263@gmx.de>2022-09-23 14:03:49 +0200
commit29cc36f84cc68b71f6bc8f8fee786c605a8c5027 (patch)
tree9fa8f62cfdbdb9e98369fa0115e35af06f2812be /src/test
parent72b3347d000473d06d90fc5112e74d160b65a0e8 (diff)
downloadrust-29cc36f84cc68b71f6bc8f8fee786c605a8c5027.tar.gz
rust-29cc36f84cc68b71f6bc8f8fee786c605a8c5027.zip
add test
Diffstat (limited to 'src/test')
-rw-r--r--src/test/ui/consts/issue-102117.rs30
-rw-r--r--src/test/ui/consts/issue-102117.stderr37
2 files changed, 67 insertions, 0 deletions
diff --git a/src/test/ui/consts/issue-102117.rs b/src/test/ui/consts/issue-102117.rs
new file mode 100644
index 00000000000..b77342c4135
--- /dev/null
+++ b/src/test/ui/consts/issue-102117.rs
@@ -0,0 +1,30 @@
+#![feature(inline_const, const_type_id)]
+
+use std::alloc::Layout;
+use std::any::TypeId;
+use std::mem::transmute;
+use std::ptr::drop_in_place;
+
+pub struct VTable {
+    layout: Layout,
+    type_id: TypeId,
+    drop_in_place: unsafe fn(*mut ()),
+}
+
+impl VTable {
+    pub fn new<T>() -> &'static Self {
+        const {
+          //~^ ERROR the parameter type `T` may not live long enough
+          //~| ERROR the parameter type `T` may not live long enough
+            &VTable {
+                layout: Layout::new::<T>(),
+                type_id: TypeId::of::<T>(),
+                drop_in_place: unsafe {
+                    transmute::<unsafe fn(*mut T), unsafe fn(*mut ())>(drop_in_place::<T>)
+                },
+            }
+        }
+    }
+}
+
+fn main() {}
diff --git a/src/test/ui/consts/issue-102117.stderr b/src/test/ui/consts/issue-102117.stderr
new file mode 100644
index 00000000000..eb4b329bd81
--- /dev/null
+++ b/src/test/ui/consts/issue-102117.stderr
@@ -0,0 +1,37 @@
+error[E0310]: the parameter type `T` may not live long enough
+  --> $DIR/issue-102117.rs:16:9
+   |
+LL | /         const {
+LL | |
+LL | |
+LL | |             &VTable {
+...  |
+LL | |             }
+LL | |         }
+   | |_________^ ...so that the type `T` will meet its required lifetime bounds
+   |
+help: consider adding an explicit lifetime bound...
+   |
+LL |     pub fn new<T: 'static>() -> &'static Self {
+   |                 +++++++++
+
+error[E0310]: the parameter type `T` may not live long enough
+  --> $DIR/issue-102117.rs:16:9
+   |
+LL | /         const {
+LL | |
+LL | |
+LL | |             &VTable {
+...  |
+LL | |             }
+LL | |         }
+   | |_________^ ...so that the type `T` will meet its required lifetime bounds
+   |
+help: consider adding an explicit lifetime bound...
+   |
+LL |     pub fn new<T: 'static>() -> &'static Self {
+   |                 +++++++++
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0310`.