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| author | lcnr <rust@lcnr.de> | 2023-04-12 10:31:41 +0200 |
|---|---|---|
| committer | lcnr <rust@lcnr.de> | 2023-04-12 10:55:14 +0200 |
| commit | cc82ccb145f2056854b499d5033be1a06ddfa29c (patch) | |
| tree | 2bcc83b49f538e41b32503ff9a552bd1f4b784ad /compiler/rustc_trait_selection/src | |
| parent | a19adefa0e5aca0aabca2430530577ee140e4efa (diff) | |
| download | rust-cc82ccb145f2056854b499d5033be1a06ddfa29c.tar.gz rust-cc82ccb145f2056854b499d5033be1a06ddfa29c.zip | |
`#[must_use]` for fns returning a list of errors
Diffstat (limited to 'compiler/rustc_trait_selection/src')
| -rw-r--r-- | compiler/rustc_trait_selection/src/traits/engine.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs | 4 |
2 files changed, 5 insertions, 1 deletions
diff --git a/compiler/rustc_trait_selection/src/traits/engine.rs b/compiler/rustc_trait_selection/src/traits/engine.rs index d2b39ed226f..2beebe94b6d 100644 --- a/compiler/rustc_trait_selection/src/traits/engine.rs +++ b/compiler/rustc_trait_selection/src/traits/engine.rs @@ -175,10 +175,12 @@ impl<'a, 'tcx> ObligationCtxt<'a, 'tcx> { .map(|infer_ok| self.register_infer_ok_obligations(infer_ok)) } + #[must_use] pub fn select_where_possible(&self) -> Vec<FulfillmentError<'tcx>> { self.engine.borrow_mut().select_where_possible(self.infcx) } + #[must_use] pub fn select_all_or_error(&self) -> Vec<FulfillmentError<'tcx>> { self.engine.borrow_mut().select_all_or_error(self.infcx) } diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs index 6ebf056f0e8..6790d7b76a3 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs @@ -1763,7 +1763,9 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // constrain inference variables a bit more to nested obligations from normalize so // we can have more helpful errors. - ocx.select_where_possible(); + // + // we intentionally errors from normalization here. + let _ = ocx.select_where_possible(); if let Err(new_err) = ocx.eq_exp( &obligation.cause, |