diff options
Diffstat (limited to 'compiler/rustc_builtin_macros/src/concat.rs')
| -rw-r--r-- | compiler/rustc_builtin_macros/src/concat.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_builtin_macros/src/concat.rs b/compiler/rustc_builtin_macros/src/concat.rs index b92964d03e9..50e88ae2eee 100644 --- a/compiler/rustc_builtin_macros/src/concat.rs +++ b/compiler/rustc_builtin_macros/src/concat.rs @@ -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; |