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yacc.c: support "%define api.pure full"

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This makes the interface for yyerror() pure without the need for a spurious
parse_param.

* data/yacc.c (b4_pure_if, b4_pure_flag): New definition, accept three states.
(b4_yacc_pure_if): Rename as...
(b4_yyerror_arg_loc_if): This, and use b4_pure_flag.
* tests/actions.at (%define api.pure): Modernize.
* test/calc.at (Simple LALR Calculator): Modernize.
* tests/local.at (AT_YYERROR_ARG_LOC_IF): Adjust.
This commit is contained in:
Theophile Ranquet
2012-11-23 17:30:47 +00:00
parent dbb998364f
commit 6428a8a4a5
4 changed files with 38 additions and 23 deletions
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17
tests/actions.at
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@@ -79,7 +79,7 @@ AT_CLEANUP
m4_pushdef([AT_TEST],
[AT_SETUP([Initial location: $1 $2])
AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" $2 %parse-param { int x }])
AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" $2])
AT_DATA_GRAMMAR([[input.y]],
[[%defines /* FIXME: Required by lalr1.cc in Bison 2.6. */
%locations
@@ -87,7 +87,6 @@ AT_DATA_GRAMMAR([[input.y]],
%skeleton "$1"
]$2[
]$3[
%parse-param { int x } // Useless, but used to force yyerror purity.
%code
{
# include <stdio.h>
@@ -113,11 +112,11 @@ exp: { ]AT_SKEL_CC_IF([[std::cerr << @$ << std::endl]],
int
main (void)
{]AT_SKEL_CC_IF([[
yy::parser p (0);
yy::parser p;
p.set_debug_level (!!getenv("YYDEBUG"));
return p.parse ();]], [[
yydebug = !!getenv("YYDEBUG");
return !!yyparse (0);]])[
return !!yyparse (]AT_PARAM_IF([0])[);]])[
}
]])
@@ -132,10 +131,12 @@ AT_CLEANUP
## FIXME: test Java, and iterate over skeletons.
AT_TEST([yacc.c])
AT_TEST([yacc.c], [%define api.pure])
AT_TEST([yacc.c], [%define api.pure full])
AT_TEST([yacc.c], [%define api.pure %parse-param { int x }])
AT_TEST([yacc.c], [%define api.push-pull both])
AT_TEST([yacc.c], [%define api.push-pull both %define api.pure])
AT_TEST([yacc.c], [%define api.push-pull both %define api.pure full])
AT_TEST([glr.c])
AT_TEST([glr.c], [%define api.pure])
AT_TEST([lalr1.cc])
AT_TEST([glr.cc])
@@ -146,7 +147,7 @@ AT_TEST([glr.cc])
## Weirdly enough, to trigger the warning with GCC 4.7, we must not
## use fprintf, so run the test twice: once to check the warning
## (absence thereof), and another time to check the value.
AT_TEST([yacc.c], [%define api.pure],
AT_TEST([yacc.c], [%define api.pure full],
[[%{
# define YYLTYPE int
# define YY_LOCATION_PRINT(Stream, Loc) \
@@ -157,7 +158,7 @@ AT_TEST([yacc.c], [%define api.pure],
]],
[@&t@])
AT_TEST([yacc.c], [%define api.pure],
AT_TEST([yacc.c], [%define api.pure full],
[[%{
# define YYLTYPE int
# define YY_LOCATION_PRINT(Stream, Loc) \