lib/rbs/environment.rb in rbs-3.0.4 vs lib/rbs/environment.rb in rbs-3.1.0

@@ -363,19 +363,19 @@
 
       when AST::Declarations::Interface
         name = decl.name.with_prefix(namespace)
 
         if interface_entry = interface_decls[name]
-          DuplicatedDeclarationError.new(name, decl, interface_entry.decl)
+          raise DuplicatedDeclarationError.new(name, decl, interface_entry.decl)
         end
 
         interface_decls[name] = InterfaceEntry.new(name: name, decl: decl, outer: outer)
 
       when AST::Declarations::TypeAlias
         name = decl.name.with_prefix(namespace)
 
         if entry = type_alias_decls[name]
-          DuplicatedDeclarationError.new(name, decl, entry.decl)
+          raise DuplicatedDeclarationError.new(name, decl, entry.decl)
         end
 
         type_alias_decls[name] = TypeAliasEntry.new(name: name, decl: decl, outer: outer)
 
       when AST::Declarations::Constant