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AK: Add String::is_one_of for variadic string comparison

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Timothy Flynn 2023-01-14 09:59:18 -05:00 committed by Linus Groh
parent 9db9b2f9be
commit bd9b65e82f
2 changed files with 22 additions and 0 deletions
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6
AK/String.h
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@ -86,6 +86,12 @@ public:
// NOTE: UTF-8 is defined in a way that lexicographic ordering of code points is equivalent to lexicographic ordering of bytes.
[[nodiscard]] int operator<=>(String const& other) const { return this->bytes_as_string_view().compare(other.bytes_as_string_view()); }
template<typename... Ts>
[[nodiscard]] ALWAYS_INLINE constexpr bool is_one_of(Ts&&... strings) const
{
return (this->operator==(forward<Ts>(strings)) || ...);
}
[[nodiscard]] u32 hash() const;
template<Arithmetic T>

16
Tests/AK/TestString.cpp
View file

@ -162,3 +162,19 @@ TEST_CASE(to_uppercase)
EXPECT_EQ(result, "ʼN"sv);
}
}
TEST_CASE(is_one_of)
{
auto foo = MUST(String::from_utf8("foo"sv));
auto bar = MUST(String::from_utf8("bar"sv));
EXPECT(foo.is_one_of(foo));
EXPECT(foo.is_one_of(foo, bar));
EXPECT(foo.is_one_of(bar, foo));
EXPECT(!foo.is_one_of(bar));
EXPECT(!bar.is_one_of("foo"sv));
EXPECT(bar.is_one_of("foo"sv, "bar"sv));
EXPECT(bar.is_one_of("bar"sv, "foo"sv));
EXPECT(bar.is_one_of("bar"sv));
}