ClearScript/ClearScript/V8/ClearScriptV8/StdString.h at master · phxnsharp/ClearScript · GitHub

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// Licensed under the MIT license.

#pragma once

#ifdef _M_CEE

//-----------------------------------------------------------------------------

// StringToUniPtr

//-----------------------------------------------------------------------------

class StringToUniPtr final

{

public:

explicit StringToUniPtr(String^ gcValue):

m_pValue(V8ProxyHelpers::AllocString(gcValue))

{

}

operator const wchar_t*() const

{

return m_pValue;

}

~StringToUniPtr()

{

V8ProxyHelpers::FreeString(m_pValue);

}

private:

wchar_t* m_pValue;

};

#endif // _M_CEE

//-----------------------------------------------------------------------------

// StdString

//-----------------------------------------------------------------------------

class StdString final

{

public:

//-------------------------------------------------------------------------

// constructors

//-------------------------------------------------------------------------

StdString()

{

}

StdString(const StdString& that):

m_Value(that.m_Value)

{

}

StdString(StdString&& that) noexcept:

m_Value(std::move(that.m_Value))

{

}

explicit StdString(const std::wstring& value):

m_Value(value)

{

}

explicit StdString(std::wstring&& value):

m_Value(std::move(value))

{

}

explicit StdString(const wchar_t* pValue):

m_Value(EnsureNonNull(pValue))

{

}

//-------------------------------------------------------------------------

// assignment

//-------------------------------------------------------------------------

const StdString& operator=(const StdString& that)

{

m_Value = that.m_Value;

return *this;

}

const StdString& operator=(StdString&& that) noexcept

{

m_Value = std::move(that.m_Value);

return *this;

}

const StdString& operator=(const std::wstring& value)

{

m_Value = value;

return *this;

}

const StdString& operator=(std::wstring&& value)

{

m_Value = std::move(value);

return *this;

}

const StdString& operator=(const wchar_t* pValue)

{

m_Value = EnsureNonNull(pValue);

return *this;

}

//-------------------------------------------------------------------------

// concatenation

//-------------------------------------------------------------------------

const StdString& operator+=(const StdString& that)

{

m_Value += that.m_Value;

return *this;

}

const StdString& operator+=(const std::wstring& value)

{

m_Value += value;

return *this;

}

const StdString& operator+=(const wchar_t* pValue)

{

m_Value += EnsureNonNull(pValue);

return *this;

}

const StdString& operator+=(wchar_t value)

{

m_Value += value;

return *this;

}

//-------------------------------------------------------------------------

// comparison

//-------------------------------------------------------------------------

int Compare(const StdString& that) const { return m_Value.compare(that.m_Value); }

int Compare(const std::wstring& value) const { return m_Value.compare(value); }

int Compare(const wchar_t* pValue) const { return m_Value.compare(pValue); }

bool operator==(const StdString& that) const { return m_Value == that.m_Value; }

bool operator==(const std::wstring& value) const { return m_Value == value; }

bool operator==(const wchar_t* pValue) const { return m_Value == pValue; }

bool operator!=(const StdString& that) const { return m_Value != that.m_Value; }

bool operator!=(const std::wstring& value) const { return m_Value != value; }

bool operator!=(const wchar_t* pValue) const { return m_Value != pValue; }

bool operator<(const StdString& that) const { return m_Value < that.m_Value; }

bool operator<(const std::wstring& value) const { return m_Value < value; }

bool operator<(const wchar_t* pValue) const { return m_Value < pValue; }

bool operator<=(const StdString& that) const { return m_Value <= that.m_Value; }

bool operator<=(const std::wstring& value) const { return m_Value <= value; }

bool operator<=(const wchar_t* pValue) const { return m_Value <= pValue; }

bool operator>(const StdString& that) const { return m_Value > that.m_Value; }

bool operator>(const std::wstring& value) const { return m_Value > value; }

bool operator>(const wchar_t* pValue) const { return m_Value > pValue; }

bool operator>=(const StdString& that) const { return m_Value >= that.m_Value; }

bool operator>=(const std::wstring& value) const { return m_Value >= value; }

bool operator>=(const wchar_t* pValue) const { return m_Value >= pValue; }

//-------------------------------------------------------------------------

// miscellaneous

//-------------------------------------------------------------------------

int GetLength() const

{

return static_cast<int>(m_Value.length());

}

size_t GetDigest() const

{

return std::hash<std::wstring>()(m_Value);

}

const wchar_t* ToCString() const

{

return m_Value.c_str();

}

//-------------------------------------------------------------------------

// managed extensions

//-------------------------------------------------------------------------

#ifdef _M_CEE

explicit StdString(String^ gcValue)

{

if (gcValue != nullptr)

{

m_Value = std::wstring(StringToUniPtr(gcValue), gcValue->Length);

}

String^ ToManagedString() const

{

return gcnew String(ToCString(), 0, GetLength());

}

#endif // _M_CEE

//-------------------------------------------------------------------------

// V8 extensions

//-------------------------------------------------------------------------

StdString(v8::Isolate* pIsolate, v8::Local<v8::Value> hValue):

m_Value(GetValue(pIsolate, hValue))

{

}

explicit StdString(const v8_inspector::StringView& stringView):

m_Value(GetValue(stringView))

{

}

v8::MaybeLocal<v8::String> ToV8String(v8::Isolate* pIsolate, v8::NewStringType type) const

{

return v8::String::NewFromTwoByte(pIsolate, reinterpret_cast<const uint16_t*>(ToCString()), type, GetLength());

}

v8_inspector::StringView GetStringView(size_t index = 0, size_t length = SIZE_MAX) const

{

auto valueLength = m_Value.length();

index = std::min(index, valueLength);

length = std::min(length, valueLength - index);

return v8_inspector::StringView(ToCString() + index, length);

}

private:

//-------------------------------------------------------------------------

// internals

//-------------------------------------------------------------------------

static std::wstring GetValue(v8::Isolate* pIsolate, v8::Local<v8::Value> hValue)

{

v8::String::Value value(pIsolate, hValue);

return std::wstring(EnsureNonNull(*value), value.length());

}

static std::wstring GetValue(const v8_inspector::StringView& stringView);

static const wchar_t* EnsureNonNull(const wchar_t* pValue)

{

return (pValue != nullptr) ? pValue : L"";

}

std::wstring m_Value;

};

ClearScript/ClearScript/V8/ClearScriptV8/StdString.h at master · phxnsharp/ClearScript · GitHub

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