[PATCH v2 2/4] Parse base classes for GTY-marked types

[Jeff Law]

On 09/24/13 11:49, David Malcolm wrote:
> Extend gengtype (and gtype.state reading/writing) so that it is able to
> parse base classes in simple cases, and only attempt to do it for
> GTY-marked types.
>
> 	* gengtype-parse.c (require_without_advance): New.
> 	(type): For GTY-marked types that are not GTY((user)), parse any
> 	base classes, requiring them to be single-inheritance, and not
> 	be templates.  For non-GTY-marked types and GTY((user)),
> 	continue to skip over any C++ inheritance specification.
> 	* gengtype-state.c (state_writer::write_state_struct_type):
> 	Write base class of type (if any).
> 	(read_state_struct_type): Read base class of type (if any).
> 	* gengtype.c (new_structure): Add a "base_class" parameter.
> 	(create_optional_field_): Update for new parameter to
> 	new_structure.
> 	(adjust_field_rtx_def): Likewise.
> 	(adjust_field_tree_exp): Likewise.
> 	* gengtype.h (struct type): Add "base_class" field to the s
> 	union field.
> 	(new_structure): Add "base" parameter.
This is OK.

jeff