1 files changed, 49 insertions, 12 deletions
diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs
index 0de252707bd..40852048293 100644
--- a/compiler/rustc_parse/src/errors.rs
+++ b/compiler/rustc_parse/src/errors.rs
@@ -722,19 +722,32 @@ pub(crate) struct LabeledLoopInBreak {
     #[primary_span]
     pub span: Span,
     #[subdiagnostic]
-    pub sub: WrapExpressionInParentheses,
+    pub sub: WrapInParentheses,
 }
 
 #[derive(Subdiagnostic)]
-#[multipart_suggestion(
-    parse_sugg_wrap_expression_in_parentheses,
-    applicability = "machine-applicable"
-)]
-pub(crate) struct WrapExpressionInParentheses {
-    #[suggestion_part(code = "(")]
-    pub left: Span,
-    #[suggestion_part(code = ")")]
-    pub right: Span,
+
+pub(crate) enum WrapInParentheses {
+    #[multipart_suggestion(
+        parse_sugg_wrap_expression_in_parentheses,
+        applicability = "machine-applicable"
+    )]
+    Expression {
+        #[suggestion_part(code = "(")]
+        left: Span,
+        #[suggestion_part(code = ")")]
+        right: Span,
+    },
+    #[multipart_suggestion(
+        parse_sugg_wrap_macro_in_parentheses,
+        applicability = "machine-applicable"
+    )]
+    MacroArgs {
+        #[suggestion_part(code = "(")]
+        left: Span,
+        #[suggestion_part(code = ")")]
+        right: Span,
+    },
 }
 
 #[derive(Diagnostic)]
@@ -936,7 +949,7 @@ pub(crate) struct InvalidExpressionInLetElse {
     pub span: Span,
     pub operator: &'static str,
     #[subdiagnostic]
-    pub sugg: WrapExpressionInParentheses,
+    pub sugg: WrapInParentheses,
 }
 
 #[derive(Diagnostic)]
@@ -945,7 +958,7 @@ pub(crate) struct InvalidCurlyInLetElse {
     #[primary_span]
     pub span: Span,
     #[subdiagnostic]
-    pub sugg: WrapExpressionInParentheses,
+    pub sugg: WrapInParentheses,
 }
 
 #[derive(Diagnostic)]
@@ -973,6 +986,25 @@ pub(crate) struct InvalidMetaItem {
     pub token: Token,
 }
 
+#[derive(Diagnostic)]
+#[diag(parse_invalid_meta_item_unquoted_ident)]
+pub(crate) struct InvalidMetaItemUnquotedIdent {
+    #[primary_span]
+    pub span: Span,
+    pub token: Token,
+    #[subdiagnostic]
+    pub sugg: InvalidMetaItemSuggQuoteIdent,
+}
+
+#[derive(Subdiagnostic)]
+#[multipart_suggestion(parse_suggestion, applicability = "machine-applicable")]
+pub(crate) struct InvalidMetaItemSuggQuoteIdent {
+    #[suggestion_part(code = "\"")]
+    pub before: Span,
+    #[suggestion_part(code = "\"")]
+    pub after: Span,
+}
+
 #[derive(Subdiagnostic)]
 #[suggestion(
     parse_sugg_escape_identifier,
@@ -2144,6 +2176,11 @@ pub enum UnescapeError {
         #[subdiagnostic]
         suggestion: MoreThanOneCharSugg,
     },
+    #[diag(parse_nul_in_c_str)]
+    NulInCStr {
+        #[primary_span]
+        span: Span,
+    },
 }
 
 #[derive(Subdiagnostic)]