Files
Newtonsoft.Json/Src/Newtonsoft.Json/Utilities/StringBuffer.cs
T
stakx e19ac3f28c Add & fix crefs in XML document comments
* Add references to types where they are missing.

 * Fix incorrect references to closed generic types.

 * Convert member ID strings to proper references where they can be
   converted without breaking the build. The remaining member ID
   strings usually mean that the comment would have to be rephrased
   for at least one build target / platform.

 * Drop namespaces from type names where they are unnecessary.

 * Fix the odd typo and add additional <c> markup in a few places.
2016-12-23 16:15:24 +01:00

122 lines
3.6 KiB
C#

#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion
using System;
namespace Newtonsoft.Json.Utilities
{
/// <summary>
/// Builds a string. Unlike <see cref="System.Text.StringBuilder"/> this class lets you reuse its internal buffer.
/// </summary>
internal struct StringBuffer
{
private char[] _buffer;
private int _position;
public int Position
{
get { return _position; }
set { _position = value; }
}
public bool IsEmpty
{
get { return _buffer == null; }
}
public StringBuffer(IArrayPool<char> bufferPool, int initalSize) : this(BufferUtils.RentBuffer(bufferPool, initalSize))
{
}
private StringBuffer(char[] buffer)
{
_buffer = buffer;
_position = 0;
}
public void Append(IArrayPool<char> bufferPool, char value)
{
// test if the buffer array is large enough to take the value
if (_position == _buffer.Length)
{
EnsureSize(bufferPool, 1);
}
// set value and increment poisition
_buffer[_position++] = value;
}
public void Append(IArrayPool<char> bufferPool, char[] buffer, int startIndex, int count)
{
if (_position + count >= _buffer.Length)
{
EnsureSize(bufferPool, count);
}
Array.Copy(buffer, startIndex, _buffer, _position, count);
_position += count;
}
public void Clear(IArrayPool<char> bufferPool)
{
if (_buffer != null)
{
BufferUtils.ReturnBuffer(bufferPool, _buffer);
_buffer = null;
}
_position = 0;
}
private void EnsureSize(IArrayPool<char> bufferPool, int appendLength)
{
char[] newBuffer = BufferUtils.RentBuffer(bufferPool, (_position + appendLength) * 2);
if (_buffer != null)
{
Array.Copy(_buffer, newBuffer, _position);
BufferUtils.ReturnBuffer(bufferPool, _buffer);
}
_buffer = newBuffer;
}
public override string ToString()
{
return ToString(0, _position);
}
public string ToString(int start, int length)
{
// TODO: validation
return new string(_buffer, start, length);
}
public char[] InternalBuffer
{
get { return _buffer; }
}
}
}