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Use CachingSourceMapView::byte_pos_to_line_and_col instead of SourceMap::lookup_char_pos

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The former calculates byte offsets instead of char offsets. It is faster
to calculate byte offsets than char offsets. Also most DWARF producers
and consumers use byte offsets instead of char offsets.
This commit is contained in:
bjorn3 2020-02-03 21:05:18 +01:00
parent 33e73091f8
commit eb4fc45310
2 changed files with 18 additions and 11 deletions
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6
src/debuginfo/mod.rs
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@ -3,6 +3,8 @@ mod line_info;
use crate::prelude::*;
use rustc_span::CachingSourceMapView;
use cranelift_codegen::ir::{StackSlots, ValueLabel, ValueLoc};
use cranelift_codegen::isa::RegUnit;
use cranelift_codegen::ValueLocRange;
@ -34,6 +36,8 @@ pub struct DebugContext<'tcx> {
unit_range_list: RangeList,
types: HashMap<Ty<'tcx>, UnitEntryId>,
source_map: CachingSourceMapView<'tcx>,
}
impl<'tcx> DebugContext<'tcx> {
@ -98,6 +102,8 @@ impl<'tcx> DebugContext<'tcx> {
unit_range_list: RangeList(Vec::new()),
types: HashMap::new(),
source_map: CachingSourceMapView::new(tcx.sess.source_map()),
}
}