From: Owen Avery <powerboat9.gamer@gmail.com>
Date: Thu, 5 Sep 2024 23:44:55 +0000 (-0400)
Subject: Avoid accidental insertion into map
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=14528a8cf094ac4bc79a86d75d409e9afebe37ff;p=thirdparty%2Fgcc.git

Avoid accidental insertion into map

gcc/rust/ChangeLog:

	* resolve/rust-ast-resolve-pattern.cc
	(PatternDeclaration::check_bindings_consistency): Check if
	outer_bindings_map contains an entry before indexing.

Signed-off-by: Owen Avery <powerboat9.gamer@gmail.com>
---

diff --git a/gcc/rust/resolve/rust-ast-resolve-pattern.cc b/gcc/rust/resolve/rust-ast-resolve-pattern.cc
index bfa6e3c4dfef..d0e5f2fa9ef9 100644
--- a/gcc/rust/resolve/rust-ast-resolve-pattern.cc
+++ b/gcc/rust/resolve/rust-ast-resolve-pattern.cc
@@ -330,7 +330,8 @@ PatternDeclaration::check_bindings_consistency (
 	      if (!ident_is_outer_bound && !missing_bindings.count (ident))
 		missing_bindings.insert ({ident, inner_info});
 
-	      else if (outer_bindings_map[ident] != inner_info
+	      else if (outer_bindings_map.count (ident)
+		       && outer_bindings_map[ident] != inner_info
 		       && !inconsistent_bindings.count (ident))
 		inconsistent_bindings.insert ({ident, inner_info});
 	    }