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Complain about unused %define variables and %code qualifiers.

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* NEWS (2.5): Document.
* data/bison.m4 (b4_check_user_names): Complain instead of warn.
* doc/bison.texinfo (Decl Summary): Document complaint, and
improve %define documentation a little otherwise.
* tests/input.at (Reject unused %code qualifiers): Update.
(%define errors): Update.
(%define, --define, --force-define): Update.
(%define backward compatibility): Update.
(Unused %define api.pure): Update.
* tests/push.at (Push Parsing: Unsupported Skeletons): Update.
This commit is contained in:
Joel E. Denny
2009-09-03 16:04:10 -04:00
parent 9789acf091
commit c6abeab182
6 changed files with 82 additions and 60 deletions
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14
data/bison.m4
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@@ -500,10 +500,10 @@ b4_define_user_code([stype])
# b4_check_user_names(WHAT, USER-LIST, BISON-NAMESPACE)
# --------------------------------------------------------
# Warn if any name of type WHAT is used by the user (as recorded in USER-LIST)
# but is not used by Bison (as recorded by macros in the namespace
# BISON-NAMESPACE).
# -----------------------------------------------------
# Complain if any name of type WHAT is used by the user (as recorded in
# USER-LIST) but is not used by Bison (as recorded by macros in the
# namespace BISON-NAMESPACE).
#
# USER-LIST must expand to a list specifying all user occurrences of all names
# of type WHAT. Each item in the list must be a triplet specifying one
@@ -541,9 +541,9 @@ m4_pushdef([b4_user_name], m4_car(b4_occurrence))dnl
m4_pushdef([b4_start], m4_car(m4_shift(b4_occurrence)))dnl
m4_pushdef([b4_end], m4_shift(m4_shift(b4_occurrence)))dnl
m4_ifndef($3[(]m4_quote(b4_user_name)[)],
[b4_warn_at([b4_start], [b4_end],
[[%s `%s' is not used]],
[$1], [b4_user_name])])[]dnl
[b4_complain_at([b4_start], [b4_end],
[[%s `%s' is not used]],
[$1], [b4_user_name])])[]dnl
m4_popdef([b4_occurrence])dnl
m4_popdef([b4_user_name])dnl
m4_popdef([b4_start])dnl