mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

coverage: Flatten guard logic in maybe_push_macro_name_span

Browse Source
This commit is contained in:
Zalathar 2023-10-16 20:54:56 +11:00
parent 5f1e8f9950
commit 97d1a9120e
1 changed files with 17 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
compiler/rustc_mir_transform/src/coverage/spans.rs
View File

@ -398,28 +398,25 @@ fn push_refined_span(&mut self, covspan: CoverageSpan) {
/// If `curr` is part of a new macro expansion, carve out and push a separate
/// span that ends just after the macro name and its subsequent `!`.
fn maybe_push_macro_name_span(&mut self) {
if let Some(visible_macro) = self.curr().visible_macro(self.body_span) {
if !self
.prev_expn_span
.is_some_and(|prev_expn_span| self.curr().expn_span.ctxt() == prev_expn_span.ctxt())
let Some(visible_macro) = self.curr().visible_macro(self.body_span) else { return };
if let Some(prev_expn_span) = &self.prev_expn_span
&& prev_expn_span.ctxt() == self.curr().expn_span.ctxt()
{
return;
}
let merged_prefix_len = self.curr_original_span.lo() - self.curr().span.lo();
let after_macro_bang =
merged_prefix_len + BytePos(visible_macro.as_str().len() as u32 + 1);
let after_macro_bang = merged_prefix_len + BytePos(visible_macro.as_str().len() as u32 + 1);
let mut macro_name_cov = self.curr().clone();
self.curr_mut().span =
self.curr().span.with_lo(self.curr().span.lo() + after_macro_bang);
self.curr_mut().span = self.curr().span.with_lo(self.curr().span.lo() + after_macro_bang);
macro_name_cov.span =
macro_name_cov.span.with_hi(macro_name_cov.span.lo() + after_macro_bang);
debug!(
" and curr starts a new macro expansion, so add a new span just for \
the macro `{}!`, new span={:?}",
visible_macro, macro_name_cov
the macro `{visible_macro}!`, new span={macro_name_cov:?}",
);
self.push_refined_span(macro_name_cov);
}
}
}
fn curr(&self) -> &CoverageSpan {
self.some_curr