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Diffstat (limited to 'crates/ide-diagnostics/src/handlers/mutability_errors.rs')
| -rw-r--r-- | crates/ide-diagnostics/src/handlers/mutability_errors.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/crates/ide-diagnostics/src/handlers/mutability_errors.rs b/crates/ide-diagnostics/src/handlers/mutability_errors.rs index 17a70f5701..0b66350894 100644 --- a/crates/ide-diagnostics/src/handlers/mutability_errors.rs +++ b/crates/ide-diagnostics/src/handlers/mutability_errors.rs @@ -693,6 +693,41 @@ fn f(inp: (Foo, Foo, Foo, Foo)) { } #[test] + // FIXME: We should have tests for `is_ty_uninhabited_from` + fn regression_14421() { + check_diagnostics( + r#" +pub enum Tree { + Node(TreeNode), + Leaf(TreeLeaf), +} + +struct Box<T>(&T); + +pub struct TreeNode { + pub depth: usize, + pub children: [Box<Tree>; 8] +} + +pub struct TreeLeaf { + pub depth: usize, + pub data: u8 +} + +pub fn test() { + let mut tree = Tree::Leaf( + //^^^^^^^^ 💡 weak: variable does not need to be mutable + TreeLeaf { + depth: 0, + data: 0 + } + ); +} +"#, + ); + } + + #[test] fn fn_traits() { check_diagnostics( r#" |