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Diagnose mismatched arg count for tuple struct patterns

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This commit is contained in:
Lukas Wirth 2023-09-08 14:31:26 +02:00
parent 297ed70a23
commit 8654a098c7
7 changed files with 144 additions and 20 deletions
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24
crates/hir/src/lib.rs
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@ -92,9 +92,10 @@ pub use crate::{
diagnostics::{
AnyDiagnostic, BreakOutsideOfLoop, CaseType, ExpectedFunction, InactiveCode,
IncoherentImpl, IncorrectCase, InvalidDeriveTarget, MacroDefError, MacroError,
MacroExpansionParseError, MalformedDerive, MismatchedArgCount, MissingFields,
MissingMatchArms, MissingUnsafe, MovedOutOfRef, NeedMut, NoSuchField, PrivateAssocItem,
PrivateField, ReplaceFilterMapNextWithFindMap, TypeMismatch, TypedHole, UndeclaredLabel,
MacroExpansionParseError, MalformedDerive, MismatchedArgCount,
MismatchedTupleStructPatArgCount, MissingFields, MissingMatchArms, MissingUnsafe,
MovedOutOfRef, NeedMut, NoSuchField, PrivateAssocItem, PrivateField,
ReplaceFilterMapNextWithFindMap, TypeMismatch, TypedHole, UndeclaredLabel,
UnimplementedBuiltinMacro, UnreachableLabel, UnresolvedExternCrate, UnresolvedField,
UnresolvedImport, UnresolvedMacroCall, UnresolvedMethodCall, UnresolvedModule,
UnresolvedProcMacro, UnusedMut,
@ -1597,6 +1598,23 @@ impl DefWithBody {
.into(),
)
}
&hir_ty::InferenceDiagnostic::MismatchedTupleStructPatArgCount {
pat,
expected,
found,
} => {
let expr_or_pat = match pat {
ExprOrPatId::ExprId(expr) => expr_syntax(expr).map(Either::Left),
ExprOrPatId::PatId(pat) => source_map
.pat_syntax(pat)
.expect("unexpected synthetic")
.map(|it| it.unwrap_left())
.map(Either::Right),
};
acc.push(
MismatchedTupleStructPatArgCount { expr_or_pat, expected, found }.into(),
)
}
}
}
for (pat_or_expr, mismatch) in infer.type_mismatches() {