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// The compiler code necessary to support the compile_error! extension.
use rustc_ast::tokenstream::TokenStream;
use rustc_expand::base::{self, *};
use rustc_span::Span;
pub fn expand_compile_error<'cx>(
cx: &'cx mut ExtCtxt<'_>,
sp: Span,
tts: TokenStream,
) -> Box<dyn base::MacResult + 'cx> {
let Some(var) = get_single_str_from_tts(cx, sp, tts, "compile_error!") else {
return DummyResult::any(sp);
};
#[expect(
rustc::diagnostic_outside_of_impl,
reason = "diagnostic message is specified by user"
)]
#[expect(rustc::untranslatable_diagnostic, reason = "diagnostic message is specified by user")]
cx.span_err(sp, var.to_string());
DummyResult::any(sp)
}
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