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Deduplicate dummy test span maps

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This commit is contained in:
Lukas Wirth 2023-11-25 15:10:31 +01:00
parent c43078f99d
commit 6208960c48
12 changed files with 99 additions and 139 deletions
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28
crates/mbe/src/syntax_bridge.rs
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@ -33,6 +33,34 @@ impl<S: Span, SM: SpanMapper<S>> SpanMapper<S> for &SM {
}
}
pub(crate) mod dummy_test_span_utils {
use super::*;
pub type DummyTestSpanData = tt::SpanData<DummyTestSpanAnchor, DummyTestSyntaxContext>;
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub struct DummyTestSpanAnchor;
impl tt::SpanAnchor for DummyTestSpanAnchor {
const DUMMY: Self = DummyTestSpanAnchor;
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub struct DummyTestSyntaxContext;
impl SyntaxContext for DummyTestSyntaxContext {
const DUMMY: Self = DummyTestSyntaxContext;
}
pub struct DummyTestSpanMap;
impl SpanMapper<tt::SpanData<DummyTestSpanAnchor, DummyTestSyntaxContext>> for DummyTestSpanMap {
fn span_for(
&self,
range: syntax::TextRange,
) -> tt::SpanData<DummyTestSpanAnchor, DummyTestSyntaxContext> {
tt::SpanData { range, anchor: DummyTestSpanAnchor, ctx: DummyTestSyntaxContext }
}
}
}
/// Convert the syntax node to a `TokenTree` (what macro
/// will consume).
/// TODO: Flesh out the doc comment more thoroughly