diff options
Diffstat (limited to 'compiler/rustc_middle/src')
| -rw-r--r-- | compiler/rustc_middle/src/mir/query.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/compiler/rustc_middle/src/mir/query.rs b/compiler/rustc_middle/src/mir/query.rs index 429be9bc725..c2bb95a91c4 100644 --- a/compiler/rustc_middle/src/mir/query.rs +++ b/compiler/rustc_middle/src/mir/query.rs @@ -250,7 +250,12 @@ pub enum ConstraintCategory<'tcx> { CallArgument(#[derive_where(skip)] Option<Ty<'tcx>>), CopyBound, SizedBound, - Assignment, + Assignment { + /// Whether this assignment is likely to be interesting to refer to in diagnostics. + /// Currently, this is true when it's assigning to a projection, when it's assigning from + /// the return value of a call, and when it has a user-provided type annotation. + has_interesting_ty: bool, + }, /// A constraint that came from a usage of a variable (e.g. in an ADT expression /// like `Foo { field: my_val }`) Usage, |