bjoernager/rust
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initial step towards implementing C string literals

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This commit is contained in:
Deadbeef 2023-03-05 15:03:22 +00:00
parent 7b99493492
commit 8ff3903643
17 changed files with 312 additions and 82 deletions
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4
compiler/rustc_builtin_macros/src/concat.rs
View file

@ -32,6 +32,10 @@ pub fn expand_concat(
Ok(ast::LitKind::Bool(b)) => {
accumulator.push_str(&b.to_string());
}
Ok(ast::LitKind::CStr(..)) => {
cx.span_err(e.span, "cannot concatenate a C string literal");
has_errors = true;
}
Ok(ast::LitKind::Byte(..) | ast::LitKind::ByteStr(..)) => {
cx.emit_err(errors::ConcatBytestr { span: e.span });
has_errors = true;

4
compiler/rustc_builtin_macros/src/concat_bytes.rs
View file

@ -18,6 +18,10 @@ fn invalid_type_err(
};
let snippet = cx.sess.source_map().span_to_snippet(span).ok();
match ast::LitKind::from_token_lit(token_lit) {
Ok(ast::LitKind::CStr(_, _)) => {
// TODO
cx.span_err(span, "cannot concatenate C string litearls");
}
Ok(ast::LitKind::Char(_)) => {
let sugg =
snippet.map(|snippet| ConcatBytesInvalidSuggestion::CharLit { span, snippet });