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AK/AKString.h

@@ -0,0 +1,110 @@
+#pragma once
+
+#include "ByteBuffer.h"
+#include "RetainPtr.h"
+#include "StringImpl.h"
+#include "Traits.h"
+#include "Vector.h"
+#include "kstdio.h"
+
+namespace AK {
+
+class String {
+public:
+    ~String() { }
+
+    String() { }
+    String(const String& other)
+        : m_impl(const_cast<String&>(other).m_impl.copyRef())
+    {
+    }
+
+    String(String&& other)
+        : m_impl(move(other.m_impl))
+    {
+    }
+
+    String(const char* cstring, ShouldChomp shouldChomp = NoChomp)
+        : m_impl(StringImpl::create(cstring, shouldChomp))
+    {
+    }
+
+    String(const char* cstring, size_t length, ShouldChomp shouldChomp = NoChomp)
+        : m_impl(StringImpl::create(cstring, length, shouldChomp))
+    {
+    }
+
+    String(const StringImpl& impl)
+        : m_impl(const_cast<StringImpl&>(impl))
+    {
+    }
+
+    String(RetainPtr<StringImpl>&& impl)
+        : m_impl(move(impl))
+    {
+    }
+
+    unsigned toUInt(bool& ok) const;
+
+    String toLowercase() const
+    {
+        if (!m_impl)
+            return String();
+        return m_impl->toLowercase();
+    }
+
+    String toUppercase() const
+    {
+        if (!m_impl)
+            return String();
+        return m_impl->toUppercase();
+    }
+
+    Vector<String> split(char separator) const;
+    String substring(size_t start, size_t length) const;
+
+    bool isNull() const { return !m_impl; }
+    bool isEmpty() const { return length() == 0; }
+    unsigned length() const { return m_impl ? m_impl->length() : 0; }
+    const char* characters() const { return m_impl ? m_impl->characters() : nullptr; }
+    char operator[](unsigned i) const { ASSERT(m_impl); return (*m_impl)[i]; }
+
+    bool operator==(const String&) const;
+    bool operator!=(const String& other) const { return !(*this == other); }
+
+    String isolatedCopy() const;
+
+    static String empty();
+
+    StringImpl* impl() { return m_impl.ptr(); }
+    const StringImpl* impl() const { return m_impl.ptr(); }
+
+    String& operator=(String&& other)
+    {
+        if (this != &other)
+            m_impl = move(other.m_impl);
+        return *this;
+    }
+
+    String& operator=(const String& other)
+    {
+        if (this != &other)
+            m_impl = const_cast<String&>(other).m_impl.copyRef();
+        return *this;
+    }
+
+    ByteBuffer toByteBuffer() const;
+
+private:
+    RetainPtr<StringImpl> m_impl;
+};
+
+template<>
+struct Traits<String> {
+    static unsigned hash(const String& s) { return s.impl() ? s.impl()->hash() : 0; }
+    static void dump(const String& s) { kprintf("%s", s.characters()); }
+};
+
+}
+
+using AK::String;