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20 lines
492 B
Rust
20 lines
492 B
Rust
// The compiler code necessary to support the compile_error! extension.
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use rustc_ast::tokenstream::TokenStream;
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use rustc_expand::base::{self, *};
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use rustc_span::Span;
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pub fn expand_compile_error<'cx>(
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cx: &'cx mut ExtCtxt<'_>,
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sp: Span,
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tts: TokenStream,
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) -> Box<dyn base::MacResult + 'cx> {
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let Some(var) = get_single_str_from_tts(cx, sp, tts, "compile_error!") else {
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return DummyResult::any(sp);
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};
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cx.span_err(sp, &var);
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DummyResult::any(sp)
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}
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