negative array size panic

d4l3k · May 3, 2018 · a770211 · a770211
1 parent 6260832
commit a770211
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/pry/interpreter.go b/pry/interpreter.go
@@ -411,6 +411,9 @@ func (scope *Scope) Interpret(expr ast.Node) (interface{}, error) {
 		if !ok {
 			return nil, errors.Errorf("expected int; got %#v", len)
 		}
+		if lenI < 0 {
+			return nil, errors.Errorf("negative array size")
+		}
 		return reflect.ArrayOf(lenI, rType), nil
 
 	case *ast.MapType: