Rewrite the existing variant part code

[deliverable/binutils-gdb.git] / gdb / ChangeLog

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 305b133b4fb0701b7731f75f0c795bd2db07bf0f..962c997bc9509dace3ba406a72db139c7134bfee 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,35 @@
+2020-04-24  Tom Tromey  <tromey@adacore.com>
+
+       * dwarf2/read.c (struct variant_field): Rewrite.
+       (struct variant_part_builder): New.
+       (struct nextfield): Remove "variant" field.  Add "offset".
+       (struct field_info): Add "current_variant_part" and
+       "variant_parts".
+       (alloc_discriminant_info): Remove.
+       (alloc_rust_variant): New function.
+       (quirk_rust_enum): Update.
+       (dwarf2_add_field): Set "offset" member.  Don't handle
+       DW_TAG_variant_part.
+       (offset_map_type): New typedef.
+       (convert_variant_range, create_one_variant)
+       (create_one_variant_part, create_variant_parts)
+       (add_variant_property): New functions.
+       (dwarf2_attach_fields_to_type): Call add_variant_property.
+       (read_structure_type): Don't handle DW_TAG_variant_part.
+       (handle_variant_part, handle_variant): New functions.
+       (handle_struct_member_die): Use them.
+       (process_structure_scope): Don't handle variant parts.
+       * gdbtypes.h (TYPE_FLAG_DISCRIMINATED_UNION): Remove.
+       (struct discriminant_info): Remove.
+       (enum dynamic_prop_node_kind) <DYN_PROP_DISCRIMINATED>: Remove.
+       (struct main_type) <flag_discriminated_union>: Remove.
+       * rust-lang.c (rust_enum_p, rust_empty_enum_p): Rewrite.
+       (rust_enum_variant): Return int.  Remove "contents".  Rewrite.
+       (rust_print_enum, rust_print_struct_def, rust_evaluate_subexp):
+       Update.
+       * valops.c (value_union_variant): Remove.
+       * value.h (value_union_variant): Don't declare.
+
 2020-04-24  Tom Tromey  <tromey@adacore.com>
 
        * ada-lang.c (ada_discrete_type_high_bound, ada_discrete_type_low)