bjoernager/rust
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give extra context to ABI mismatch errors

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This commit is contained in:
Ralf Jung 2023-09-09 10:50:14 +02:00
parent 897a65804d
commit f993ddc079
10 changed files with 66 additions and 38 deletions
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19
compiler/rustc_middle/src/mir/interpret/error.rs
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@ -255,9 +255,16 @@ impl_into_diagnostic_arg_through_debug! {
/// Error information for when the program caused Undefined Behavior.
#[derive(Debug)]
pub enum UndefinedBehaviorInfo<'a> {
pub enum UndefinedBehaviorInfo<'tcx> {
/// Free-form case. Only for errors that are never caught! Used by miri
Ub(String),
// FIXME(fee1-dead) these should all be actual variants of the enum instead of dynamically
// dispatched
/// A custom (free-form) fluent-translated error, created by `err_ub_custom!`.
Custom(crate::error::CustomSubdiagnostic<'tcx>),
/// Validation error.
ValidationError(ValidationErrorInfo<'tcx>),
/// Unreachable code was executed.
Unreachable,
/// A slice/array index projection went out-of-bounds.
@ -319,12 +326,10 @@ pub enum UndefinedBehaviorInfo<'a> {
UninhabitedEnumVariantWritten(VariantIdx),
/// An uninhabited enum variant is projected.
UninhabitedEnumVariantRead(VariantIdx),
/// Validation error.
ValidationError(ValidationErrorInfo<'a>),
// FIXME(fee1-dead) these should all be actual variants of the enum instead of dynamically
// dispatched
/// A custom (free-form) error, created by `err_ub_custom!`.
Custom(crate::error::CustomSubdiagnostic<'a>),
/// ABI-incompatible argument types.
AbiMismatchArgument { caller_ty: Ty<'tcx>, callee_ty: Ty<'tcx> },
/// ABI-incompatible return types.
AbiMismatchReturn { caller_ty: Ty<'tcx>, callee_ty: Ty<'tcx> },
}
#[derive(Debug, Clone, Copy)]