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Instrumentation in effort to understand treatment of `allow_internal_unstable`. 

It is all `debug!` instrumentation so it should not impose a cost on
non-debug builds.
This commit is contained in:
Felix S. Klock II 2015-06-05 18:53:17 +02:00
parent 07afe91fda
commit 9ca1c61879
2 changed files with 16 additions and 2 deletions
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14
src/librustc/middle/stability.rs
View File

@ -543,9 +543,19 @@ pub fn check_pat(tcx: &ty::ctxt, pat: &ast::Pat,
fn maybe_do_stability_check(tcx: &ty::ctxt, id: ast::DefId, span: Span,
cb: &mut FnMut(ast::DefId, Span, &Option<&Stability>)) {
if !is_staged_api(tcx, id) { return }
if is_internal(tcx, span) { return }
if !is_staged_api(tcx, id) {
debug!("maybe_do_stability_check: \
skipping id={:?} since it is not staged_api", id);
return;
}
if is_internal(tcx, span) {
debug!("maybe_do_stability_check: \
skipping span={:?} since it is internal", span);
return;
}
let ref stability = lookup(tcx, id);
debug!("maybe_do_stability_check: \
inspecting id={:?} span={:?} of stability={:?}", id, span, stability);
cb(id, span, stability);
}

4
src/libsyntax/codemap.rs
View File

@ -980,6 +980,10 @@ impl CodeMap {
mac_span.lo <= span.lo && span.hi <= mac_span.hi
});
debug!("span_allows_unstable: span: {:?} call_site: {:?} callee: {:?}",
(span.lo, span.hi),
(info.call_site.lo, info.call_site.hi),
info.callee.span.map(|x| (x.lo, x.hi)));
debug!("span_allows_unstable: from this expansion? {}, allows unstable? {}",
span_comes_from_this_expansion,
info.callee.allow_internal_unstable);