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m4: provide macros for api.value.type=union

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* data/skeletons/bison.m4 (b4_union_if): New.
Remove support for "%define variant", which was deprecated long ago.
* tests/local.at (AT_UNION_IF): New.
This commit is contained in:
Akim Demaille
2021-01-30 17:17:18 +01:00
parent fc0dbb3bba
commit 6dc09317fb
2 changed files with 10 additions and 3 deletions
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10
data/skeletons/bison.m4
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@@ -1132,14 +1132,18 @@ m4_define([b4_parse_error_bmatch],
# b4_union_if([IF-UNION-ARE-USED], [IF-NOT])
# b4_variant_if([IF-VARIANT-ARE-USED], [IF-NOT])
# ----------------------------------------------
b4_percent_define_if_define([variant])
# Depend on whether api.value.type is union, or variant.
m4_define([b4_union_flag], [[0]])
m4_define([b4_variant_flag], [[0]])
b4_percent_define_ifdef([[api.value.type]],
[m4_case(b4_percent_define_get_kind([[api.value.type]]), [keyword],
[m4_case(b4_percent_define_get([[api.value.type]]), [variant],
[m4_define([b4_variant_flag], [[1]])])])])
[m4_case(b4_percent_define_get([[api.value.type]]),
[union], [m4_define([b4_union_flag], [[1]])],
[variant], [m4_define([b4_variant_flag], [[1]])])])])
b4_define_flag_if([union])
b4_define_flag_if([variant])