diff options
Diffstat (limited to 'compiler/rustc_middle/src/mir/syntax.rs')
| -rw-r--r-- | compiler/rustc_middle/src/mir/syntax.rs | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 1a65f74f4fe..fb3841f8776 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -512,6 +512,31 @@ pub struct CopyNonOverlapping<'tcx> { pub count: Operand<'tcx>, } +/// Represents how a `TerminatorKind::Call` was constructed, used for diagnostics +#[derive(Clone, Copy, TyEncodable, TyDecodable, Debug, PartialEq, Hash, HashStable)] +#[derive(TypeFoldable, TypeVisitable)] +pub enum CallSource { + /// This came from something such as `a > b` or `a + b`. In THIR, if `from_hir_call` + /// is false then this is the desugaring. + OverloadedOperator, + /// This was from comparison generated by a match, used by const-eval for better errors + /// when the comparison cannot be done in compile time. + /// + /// See https://github.com/rust-lang/rust/issues/90237. + MatchCmp, + /// Other types of desugaring that did not come from the HIR, but we don't care about + /// for diagnostics (yet). + Misc, + /// Normal function call, no special source + Normal, +} + +impl CallSource { + pub fn from_hir_call(self) -> bool { + matches!(self, CallSource::Normal) + } +} + /////////////////////////////////////////////////////////////////////////// // Terminators @@ -638,11 +663,10 @@ pub enum TerminatorKind<'tcx> { target: Option<BasicBlock>, /// Action to be taken if the call unwinds. unwind: UnwindAction, - /// `true` if this is from a call in HIR rather than from an overloaded - /// operator. True for overloaded function call. - from_hir_call: bool, + /// Where this call came from in HIR/THIR. + call_source: CallSource, /// This `Span` is the span of the function, without the dot and receiver - /// (e.g. `foo(a, b)` in `x.foo(a, b)` + /// e.g. `foo(a, b)` in `x.foo(a, b)` fn_span: Span, }, |