bjoernager/rust
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expand: Leave traces when expanding cfg_attr attributes

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This commit is contained in:
Vadim Petrochenkov 2025-03-14 20:34:43 +03:00
parent 9bad8ac498
commit 9dd4e4cad1
10 changed files with 136 additions and 19 deletions
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19
compiler/rustc_ast_pretty/src/pprust/state.rs
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@ -578,11 +578,12 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere
let mut printed = false;
for attr in attrs {
if attr.style == kind {
self.print_attribute_inline(attr, is_inline);
if is_inline {
self.nbsp();
if self.print_attribute_inline(attr, is_inline) {
if is_inline {
self.nbsp();
}
printed = true;
}
printed = true;
}
}
if printed && trailing_hardbreak && !is_inline {
@ -591,7 +592,12 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere
printed
}
fn print_attribute_inline(&mut self, attr: &ast::Attribute, is_inline: bool) {
fn print_attribute_inline(&mut self, attr: &ast::Attribute, is_inline: bool) -> bool {
if attr.has_name(sym::cfg_attr_trace) {
// It's not a valid identifier, so avoid printing it
// to keep the printed code reasonably parse-able.
return false;
}
if !is_inline {
self.hardbreak_if_not_bol();
}
@ -610,6 +616,7 @@ pub trait PrintState<'a>: std::ops::Deref<Target = pp::Printer> + std::ops::Dere
self.hardbreak()
}
}
true
}
fn print_attr_item(&mut self, item: &ast::AttrItem, span: Span) {
@ -2047,7 +2054,7 @@ impl<'a> State<'a> {
}
fn print_attribute(&mut self, attr: &ast::Attribute) {
self.print_attribute_inline(attr, false)
self.print_attribute_inline(attr, false);
}
fn print_meta_list_item(&mut self, item: &ast::MetaItemInner) {