From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
Subject: Re: Dynamic Variant Record Creation
Date: Tue, 16 Mar 2010 19:31:45 +0100
Date: 2010-03-16T19:31:46+01:00 [thread overview]
Message-ID: <4b9fce92$0$6730$9b4e6d93@newsspool2.arcor-online.net> (raw)
In-Reply-To: <Xns9D3D861E55DA0WarrensBlatherings@188.40.43.213>
Warren schrieb:
> procedure Get_Token(Object : in out Lexer; Token : out Token_Unit) is
>
> procedure Emit_Token(T : Token_Type) is
> T : Token_Type := Token_Type'Val(Character'Pos(Ch));
> begin
> Token := ( Token => T );
> end;
>
> ...
>
> end;
> In the above, I need to create a Token_Unit from
> a single character (there is no "id" in this case). The values
> of operator characters are carefully coordinated in the Token_Type
> using a representation clause (just FYI).
This text appears to be GNATable:
procedure Emit_Token(T : Token_Type) is
Some_T : Token_Type := Token_Type'Val(Character'Pos(Ch));
subtype Result_Type is Token_Unit (Token => Some_T);
Result : Result_Type;
begin
-- Token := ( Token => T );
Token := Result;
end;
> But the issue is this:
>
> *.adb:339:33: value for discriminant "token" must be static
Is this true?
next prev parent reply other threads:[~2010-03-16 18:31 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-16 17:11 Dynamic Variant Record Creation Warren
2010-03-16 18:31 ` Georg Bauhaus [this message]
2010-03-16 18:57 ` Adam Beneschan
2010-03-16 20:01 ` Warren
2010-03-16 20:09 ` Jeffrey R. Carter
2010-03-16 20:24 ` Warren
2010-03-16 20:40 ` Robert A Duff
2010-03-16 20:44 ` Warren
2010-03-16 20:31 ` Robert A Duff
2010-03-16 20:59 ` Warren
2010-03-16 21:55 ` Jeffrey R. Carter
2010-03-17 14:40 ` Warren
2010-03-18 12:57 ` Warren
2010-03-16 21:58 ` Robert A Duff
2010-03-17 14:22 ` Charmed Snark
2010-03-17 14:49 ` Robert A Duff
2010-03-17 16:30 ` Warren
2010-03-16 21:15 ` Adam Beneschan
2010-03-16 23:24 ` Adam Beneschan
2010-03-16 20:15 ` Robert A Duff
2010-03-16 21:00 ` Warren
2010-03-16 23:39 ` Randy Brukardt
2010-03-16 23:43 ` Randy Brukardt
2010-03-17 0:15 ` Robert A Duff
2010-03-17 14:28 ` Warren
2010-03-18 0:02 ` Randy Brukardt
2010-03-17 4:20 ` Adam Beneschan
2010-03-18 0:13 ` Randy Brukardt
2010-03-18 13:00 ` Warren
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