From: Akim Demaille <akim@lrde.epita.fr>
Date: Wed, 19 Dec 2012 10:01:52 +0000 (+0100)
Subject: glr.cc: simplifying the handling of parse/lex params
X-Git-Tag: v2.7.90~246
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/65e0291619fdcda9c99d5ddf8fb0f93b99dcca52

glr.cc: simplifying the handling of parse/lex params

The fact that glr.cc uses glr.c makes the handling of parse params
more complex, as the parser object of glr.cc must be passed to the
parse function of glr.c.  Yet not all the functions need access to
the parser object.

* data/glr.cc (b4_parse_param_wrap): New.
Use them.
---

diff --git a/data/glr.cc b/data/glr.cc
index 9879c305..741ea71b 100644
--- a/data/glr.cc
+++ b/data/glr.cc
@@ -55,6 +55,17 @@ m4_define([b4_parser_class_name],
 # Save the parse parameters.
 m4_define([b4_parse_param_orig], m4_defn([b4_parse_param]))
 
+# b4_parse_param_wrap
+# -------------------
+# New ones.
+m4_ifset([b4_parse_param],
+[m4_define([b4_parse_param_wrap],
+           [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]],]
+m4_defn([b4_parse_param]))],
+[m4_define([b4_parse_param_wrap],
+           [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]]])
+])
+
 
 # b4_yy_symbol_print_define
 # -------------------------
@@ -215,8 +226,7 @@ b4_namespace_close
 # Declaration that might either go into the header (if --defines)
 # or open coded in the parser body.
 m4_define([b4_shared_declarations],
-[dnl In this section, the parse params are the original parse_params.
-m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
+[m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_orig]))dnl
 b4_percent_code_get([[requires]])[
 
 #include <stdexcept>
@@ -319,12 +329,6 @@ b4_copyright([Skeleton interface for Bison GLR parsers in C++],
 
 # Let glr.c (and b4_shared_declarations) believe that the user
 # arguments include the parser itself.
-m4_ifset([b4_parse_param],
-[m4_pushdef([b4_parse_param],
-            [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]],]
-m4_defn([b4_parse_param]))],
-[m4_pushdef([b4_parse_param],
-            [[b4_namespace_ref::b4_parser_class_name[& yyparser], [[yyparser]]]])
-])
+m4_pushdef([b4_parse_param], m4_defn([b4_parse_param_wrap]))
 m4_include(b4_pkgdatadir/[glr.c])
 m4_popdef([b4_parse_param])