Re: d:

[Adela Vais]

Hello Akim,

It's ok! And thank you for all your help in the past year!
I agree to not using %union.

Thank you,
Adela Vais

În dum., 25 iul. 2021 la 17:05, Akim Demaille <akim@lrde.epita.fr> a scris:

> Hi Adela,
>
> I apologize for not being very responsive currently :(
>
> Let's prepare 3.8 with the D skeleton as foremost feature.
>
> I'm not too fond of using %union, so I suggest to not use it in the
> "advanced" D example.  Would you agree with that?
>
> Cheers!
>
> commit d19cde6f1828afed55a3add126e4eed41bfebc04
> Author: Akim Demaille <akim.demaille@gmail.com>
> Date:   Wed Jun 23 07:19:20 2021 +0200
>
>     d: minor clean up
>
>     * doc/bison.texi: Use @samp, not "...", around pieces of code.
>     * examples/d/calc/calc.y: Don't promote %union.
>
> diff --git a/doc/bison.texi b/doc/bison.texi
> index bfa8687bf..0b585739b 100644
> --- a/doc/bison.texi
> +++ b/doc/bison.texi
> @@ -6485,7 +6485,7 @@ with other members of the @code{SymbolKind} class.
>
>  @item Default Value:
>  @code{YYSYMBOL_} in C.  @code{S_} in C++ and Java.  The default prefix is
> -removed from D.
> +empty from D.
>  @item History:
>  introduced in Bison 3.6.
>  @end itemize
> @@ -6503,9 +6503,9 @@ C++, D
>  @item Purpose:
>  Request that symbols be handled as a whole (type, value, and possibly
>  location) in the scanner. In the case of C++, it works only when
> -variant-based semantic values are enabled
> -(@pxref{C++ Variants}),  @xref{Complete Symbols}, for details. In D,
> -token constructor works with both "%union" and "%define api.value.type
> union".
> +variant-based semantic values are enabled (@pxref{C++ Variants}), see
> +@ref{Complete Symbols}, for details. In D, token constructors work with
> both
> +@samp{%union} and @samp{%define api.value.type union}.
>
>  @item Accepted Values:
>  Boolean.
> diff --git a/examples/d/calc/calc.y b/examples/d/calc/calc.y
> index 7273d16c6..f2b0e8b2d 100644
> --- a/examples/d/calc/calc.y
> +++ b/examples/d/calc/calc.y
> @@ -20,17 +20,14 @@
>  %language "D"
>
>  %define api.parser.class {Calc}
> -%define parse.error detailed
> -%define parse.trace
>  %define api.push-pull push
>  %define api.token.constructor
> +%define api.value.type union
> +%define parse.error detailed
> +%define parse.trace
>
>  %locations
>
> -%union {
> -  int ival;
> -}
> -
>  /* Bison Declarations */
>  %token PLUS   "+"
>         MINUS  "-"
> @@ -39,9 +36,9 @@
>         LPAR   "("
>         RPAR   ")"
>         EOL    "end of line"
> -%token <ival> NUM "number"
> -%type  <ival> exp
> -%printer { yyo.write($$); } <ival>
> +%token <int> NUM "number"
> +%type  <int> exp
> +%printer { yyo.write($$); } <int>
>
>  %left "-" "+"
>  %left "*" "/"
>
>