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span: move MultiSpan

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`MultiSpan` contains labels, which are more complicated with the
introduction of diagnostic translation and will use types from
`rustc_errors` - however, `rustc_errors` depends on `rustc_span` so
`rustc_span` cannot use types like `DiagnosticMessage` without
dependency cycles. Introduce a new `rustc_error_messages` crate that can
contain `DiagnosticMessage` and `MultiSpan`.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood
2022-03-24 02:03:04 +00:00
parent 8c684563a5
commit c45f29595d
66 changed files with 354 additions and 293 deletions
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4
compiler/rustc_middle/src/lint.rs
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@@ -3,7 +3,7 @@ use std::cmp;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_errors::{
Diagnostic, DiagnosticBuilder, DiagnosticId, EmissionGuarantee, ErrorGuaranteed,
Diagnostic, DiagnosticBuilder, DiagnosticId, EmissionGuarantee, ErrorGuaranteed, MultiSpan,
};
use rustc_hir::HirId;
use rustc_index::vec::IndexVec;
@@ -14,7 +14,7 @@ use rustc_session::lint::{
};
use rustc_session::Session;
use rustc_span::hygiene::MacroKind;
use rustc_span::source_map::{DesugaringKind, ExpnKind, MultiSpan};
use rustc_span::source_map::{DesugaringKind, ExpnKind};
use rustc_span::{symbol, Span, Symbol, DUMMY_SP};
/// How a lint level was set.