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480157863b
Currently, "ptype" of an Ada unchecked union may show a compiler-generated wrapper structure in its output. It's more Ada-like to elide this structure, which is what this patch implements. It turned out to be simplest to reuse a part of print_variant_clauses for this. As this is Ada-specific, and Joel already reviewed it internally, I am going to check it in.
56 lines
1.6 KiB
Ada
56 lines
1.6 KiB
Ada
-- Copyright 2019-2022 Free Software Foundation, Inc.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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with System;
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with Pck; use Pck;
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procedure Foo is
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type Key is (Alpha, Beta, Omega);
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type Inner(Disc : Key := Omega) is record
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case Disc is
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when Alpha =>
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Small : Integer range 0..255;
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Second : Integer range 0..255;
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when Beta =>
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Bval : Integer range 0..255;
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when others =>
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Large : Integer range 255..510;
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More : Integer range 255..510;
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end case;
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end record;
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pragma Unchecked_Union (Inner);
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type Outer(Disc : Key := Alpha) is record
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case Disc is
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when Alpha =>
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Field_One : Integer range 0..255;
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when others =>
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Field_Two : Integer range 255..510;
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end case;
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end record;
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pragma Unchecked_Union (Outer);
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type Pair is record
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Pone : Inner;
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Ptwo : Outer;
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end record;
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Value : Pair;
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begin
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Do_Nothing (Value'Address); -- BREAK
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end Foo;
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