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Revert "Modernize x3::action (#815)"

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This reverts commit 3df9ca3788.
This commit is contained in:
Nana Sakisaka
2025-09-13 08:57:05 +09:00
parent c41c9aec95
commit 569c52220e
3 changed files with 125 additions and 237 deletions
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29
test/x3/rule3.cpp
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@@ -13,7 +13,6 @@
#include <boost/fusion/include/std_pair.hpp>
#include <boost/variant.hpp>
#include <string>
#include <vector>
#include <cstring>
@@ -109,14 +108,15 @@ int main()
using spirit_test::test_attr;
using spirit_test::test;
using namespace boost::spirit::x3::standard;
using namespace boost::spirit::x3::ascii;
using boost::spirit::x3::rule;
using boost::spirit::x3::lit;
using boost::spirit::x3::eps;
using boost::spirit::x3::unused_type;
// synth attribute value-init
{
{ // synth attribute value-init
std::string s;
typedef rule<class r, std::string> rule_type;
@@ -128,15 +128,17 @@ int main()
BOOST_TEST(s == "abcdef");
}
// synth attribute value-init
{
{ // synth attribute value-init
std::string s;
typedef rule<class r, std::string> rule_type;
auto rdef = rule_type() =
alpha[([](auto& ctx) {
_val(ctx) += _attr(ctx);
})]
alpha /
[](auto& ctx)
{
_val(ctx) += _attr(ctx);
}
;
BOOST_TEST(test_attr("abcdef", +rdef, s));
@@ -146,16 +148,13 @@ int main()
{
auto r = rule<class r_id, int>{} = eps[([] (auto& ctx) {
using boost::spirit::x3::_val;
static_assert(
std::is_same_v<std::decay_t<decltype(_val(ctx))>, unused_type>,
"Attribute must not be synthesized"
);
static_assert(std::is_same<std::decay_t<decltype(_val(ctx))>, unused_type>::value,
"Attribute must not be synthesized");
})];
BOOST_TEST(test("", r));
}
// ensure no unneeded synthesization, copying and moving occurred
{
{ // ensure no unneeded synthesization, copying and moving occurred
stationary st { 0 };
BOOST_TEST(test_attr("{42}", check_stationary::b, st));
BOOST_TEST_EQ(st.val, 42);