Function rustc_builtin_macros::edition_panic::expand_panic

source · 
pub fn expand_panic<'cx>(
    cx: &'cx mut ExtCtxt<'_>,
    sp: Span,
    tts: TokenStream
) -> MacroExpanderResult<'cx>
Expand description

This expands to either

  • $crate::panic::panic_2015!(...) or
  • $crate::panic::panic_2021!(...) depending on the edition.

This is used for both std::panic!() and core::panic!().

$crate will refer to either the std or core crate depending on which one we’re expanding from.