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a13354bea0
This should make it clearer that this bitset is dense, with the advantages and disadvantages that it entails.
21 lines
626 B
Rust
21 lines
626 B
Rust
use rustc_index::bit_set::DenseBitSet;
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use rustc_middle::mir::visit::*;
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use rustc_middle::mir::*;
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/// Return the set of locals that appear in debuginfo.
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pub fn debuginfo_locals(body: &Body<'_>) -> DenseBitSet<Local> {
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let mut visitor = DebuginfoLocals(DenseBitSet::new_empty(body.local_decls.len()));
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for debuginfo in body.var_debug_info.iter() {
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visitor.visit_var_debug_info(debuginfo);
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}
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visitor.0
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}
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struct DebuginfoLocals(DenseBitSet<Local>);
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impl Visitor<'_> for DebuginfoLocals {
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fn visit_local(&mut self, local: Local, _: PlaceContext, _: Location) {
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self.0.insert(local);
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}
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}
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