RefPtr<ProgramSyntax::Node> parse_global_declaration();
RefPtr<ProgramSyntax::Node> parse_statement();
RefPtr<ProgramSyntax::Import> parse_import();
RefPtr<ProgramSyntax::Node> parse_global_declaration();
RefPtr<ProgramSyntax::Node> parse_statement();
RefPtr<ProgramSyntax::Import> parse_import();