AK+Everywhere: Rename FlyString to DeprecatedFlyString

DeprecatedFlyString relies heavily on DeprecatedString's StringImpl, so let's rename it to A) match the name of DeprecatedString, B) write a new FlyString class that is tied to String.
2025-05-14 08:44:58 +00:00 · 2023-01-08 19:23:00 -05:00 · 2023-01-08 19:23:00 -05:00 · f3db548a3d
commit f3db548a3d
parent 2eacc7aec1
316 changed files with 1177 additions and 1177 deletions
--- a/AK/DeprecatedFlyString.cpp
+++ b/AK/DeprecatedFlyString.cpp
@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <AK/DeprecatedFlyString.h>
+#include <AK/DeprecatedString.h>
+#include <AK/HashTable.h>
+#include <AK/Optional.h>
+#include <AK/Singleton.h>
+#include <AK/StringUtils.h>
+#include <AK/StringView.h>
+
+namespace AK {
+
+struct DeprecatedFlyStringImplTraits : public Traits<StringImpl*> {
+    static unsigned hash(StringImpl const* s) { return s ? s->hash() : 0; }
+    static bool equals(StringImpl const* a, StringImpl const* b)
+    {
+        VERIFY(a);
+        VERIFY(b);
+        return *a == *b;
+    }
+};
+
+static Singleton<HashTable<StringImpl*, DeprecatedFlyStringImplTraits>> s_table;
+
+static HashTable<StringImpl*, DeprecatedFlyStringImplTraits>& fly_impls()
+{
+    return *s_table;
+}
+
+void DeprecatedFlyString::did_destroy_impl(Badge<StringImpl>, StringImpl& impl)
+{
+    fly_impls().remove(&impl);
+}
+
+DeprecatedFlyString::DeprecatedFlyString(DeprecatedString const& string)
+{
+    if (string.is_null())
+        return;
+    if (string.impl()->is_fly()) {
+        m_impl = string.impl();
+        return;
+    }
+    auto it = fly_impls().find(const_cast<StringImpl*>(string.impl()));
+    if (it == fly_impls().end()) {
+        fly_impls().set(const_cast<StringImpl*>(string.impl()));
+        string.impl()->set_fly({}, true);
+        m_impl = string.impl();
+    } else {
+        VERIFY((*it)->is_fly());
+        m_impl = *it;
+    }
+}
+
+DeprecatedFlyString::DeprecatedFlyString(StringView string)
+{
+    if (string.is_null())
+        return;
+    auto it = fly_impls().find(string.hash(), [&](auto& candidate) {
+        return string == candidate;
+    });
+    if (it == fly_impls().end()) {
+        auto new_string = string.to_deprecated_string();
+        fly_impls().set(new_string.impl());
+        new_string.impl()->set_fly({}, true);
+        m_impl = new_string.impl();
+    } else {
+        VERIFY((*it)->is_fly());
+        m_impl = *it;
+    }
+}
+
+template<typename T>
+Optional<T> DeprecatedFlyString::to_int(TrimWhitespace trim_whitespace) const
+{
+    return StringUtils::convert_to_int<T>(view(), trim_whitespace);
+}
+
+template Optional<i8> DeprecatedFlyString::to_int(TrimWhitespace) const;
+template Optional<i16> DeprecatedFlyString::to_int(TrimWhitespace) const;
+template Optional<i32> DeprecatedFlyString::to_int(TrimWhitespace) const;
+template Optional<i64> DeprecatedFlyString::to_int(TrimWhitespace) const;
+
+template<typename T>
+Optional<T> DeprecatedFlyString::to_uint(TrimWhitespace trim_whitespace) const
+{
+    return StringUtils::convert_to_uint<T>(view(), trim_whitespace);
+}
+
+template Optional<u8> DeprecatedFlyString::to_uint(TrimWhitespace) const;
+template Optional<u16> DeprecatedFlyString::to_uint(TrimWhitespace) const;
+template Optional<u32> DeprecatedFlyString::to_uint(TrimWhitespace) const;
+template Optional<u64> DeprecatedFlyString::to_uint(TrimWhitespace) const;
+
+#ifndef KERNEL
+Optional<double> DeprecatedFlyString::to_double(TrimWhitespace trim_whitespace) const
+{
+    return StringUtils::convert_to_floating_point<double>(view(), trim_whitespace);
+}
+
+Optional<float> DeprecatedFlyString::to_float(TrimWhitespace trim_whitespace) const
+{
+    return StringUtils::convert_to_floating_point<float>(view(), trim_whitespace);
+}
+#endif
+
+bool DeprecatedFlyString::equals_ignoring_case(StringView other) const
+{
+    return StringUtils::equals_ignoring_case(view(), other);
+}
+
+bool DeprecatedFlyString::starts_with(StringView str, CaseSensitivity case_sensitivity) const
+{
+    return StringUtils::starts_with(view(), str, case_sensitivity);
+}
+
+bool DeprecatedFlyString::ends_with(StringView str, CaseSensitivity case_sensitivity) const
+{
+    return StringUtils::ends_with(view(), str, case_sensitivity);
+}
+
+DeprecatedFlyString DeprecatedFlyString::to_lowercase() const
+{
+    return DeprecatedString(*m_impl).to_lowercase();
+}
+
+bool DeprecatedFlyString::operator==(DeprecatedString const& other) const
+{
+    return m_impl == other.impl() || view() == other.view();
+}
+
+bool DeprecatedFlyString::operator==(StringView string) const
+{
+    return view() == string;
+}
+
+bool DeprecatedFlyString::operator==(char const* string) const
+{
+    return view() == string;
+}
+
+}