Improve non-boolean literal error in cfg predicate

2024-10-01 10:25:18 +02:00
parent 781f1840cd
commit a3ffa1eae5
5 changed files with 7 additions and 3 deletions
--- a/compiler/rustc_attr/src/builtin.rs
+++ b/compiler/rustc_attr/src/builtin.rs
@@ -36,6 +36,7 @@ pub fn is_builtin_attr(attr: &Attribute) -> bool {
 pub(crate) enum UnsupportedLiteralReason {
    Generic,
    CfgString,
+    CfgBoolean,
    DeprecatedString,
    DeprecatedKvPair,
 }
@@ -623,7 +624,7 @@ pub fn eval_condition(
        _ => {
            dcx.emit_err(session_diagnostics::UnsupportedLiteral {
                span: cfg.span(),
-                reason: UnsupportedLiteralReason::Generic,
+                reason: UnsupportedLiteralReason::CfgBoolean,
                is_bytestr: false,
                start_point_span: sess.source_map().start_point(cfg.span()),
            });