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make on_error accept lambda without arguments, update tests

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This commit is contained in:
ado 2020-12-26 00:42:01 +01:00
parent 371da072be
commit 16f4648cb3
2 changed files with 15 additions and 11 deletions
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9
include/ss/parser.hpp
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@ -120,9 +120,14 @@ class parser {
}
template <typename Fun>
auto on_error(Fun fun) {
auto on_error(Fun&& fun) {
if (!parser_.valid()) {
fun(parser_.error_msg());
if constexpr (std::is_invocable_v<Fun>) {
fun();
} else {
std::invoke(std::forward<Fun>(fun),
parser_.error_msg());
}
}
return *this;
}

17
test/test_parser.cpp
View File

@ -189,7 +189,6 @@ TEST_CASE("testing composite conversion") {
ss::parser p{f.name, ","};
auto fail = [] { FAIL(""); };
auto fail_if_error = [](auto& error) { CHECK(error.empty()); };
auto expect_error = [](auto error) { CHECK(!error.empty()); };
REQUIRE(p.valid());
@ -203,7 +202,7 @@ TEST_CASE("testing composite conversion") {
.or_else<test_struct>(fail)
.or_else<int, char, double>(
[](auto&& data) { CHECK(data == expectedData); })
.on_error(fail_if_error)
.on_error(fail)
.or_else<test_tuple>(fail)
.values();
@ -224,11 +223,11 @@ TEST_CASE("testing composite conversion") {
[](auto& i1, auto i2, double d) {
CHECK(std::tie(i1, i2, d) == expectedData);
})
.on_error(fail_if_error)
.on_error(fail)
.or_else_object<test_struct, int, double, char>(fail)
.on_error(fail_if_error)
.on_error(fail)
.or_else<test_tuple>(fail)
.on_error(fail_if_error)
.on_error(fail)
.or_else<int, char, double>(fail)
.values();
@ -313,9 +312,9 @@ TEST_CASE("testing composite conversion") {
REQUIRE(!p.eof());
auto [d1, d2] = p.try_next<int, std::optional<int>>()
.on_error(fail_if_error)
.on_error(fail)
.or_else<std::tuple<int, std::string>>(fail)
.on_error(fail_if_error)
.on_error(fail)
.values();
REQUIRE(p.valid());
@ -329,9 +328,9 @@ TEST_CASE("testing composite conversion") {
auto [d1, d2] =
p.try_next<int, std::variant<int, std::string>>()
.on_error(fail_if_error)
.on_error(fail)
.or_else<std::tuple<int, std::string>>(fail)
.on_error(fail_if_error)
.on_error(fail)
.values();
REQUIRE(p.valid());