Skip to main content
rustc_macro_help
rustc_
attr_
parsing
1.100.0-beta.7
(fd8e211ae 2026-10-17)
In rustc_
attr_
parsing::
check_
cfg
rustc_attr_parsing
::
check_cfg
Function
rustc_
macro_
help
Copy item path
Source
fn rustc_macro_help(span:
Span
) ->
Option
<
UnexpectedCfgRustcMacroHelp
>