MakeRoom()

void System.Text.StringBuilder.MakeRoom ( int index, int count, out StringBuilder chunk, out int indexInChunk, bool doNotMoveFollowingChars )

inlineprivate

Definition at line 2155 of file StringBuilder.cs.

    {
        if (count + Length > m_MaxCapacity || count + Length < count)
        {
            throw new ArgumentOutOfRangeException("requiredLength", SR.ArgumentOutOfRange_SmallCapacity);
        }
        chunk = this;
        while (chunk.m_ChunkOffset > index)
        {
            chunk.m_ChunkOffset += count;
            chunk = chunk.m_ChunkPrevious;
        }
        indexInChunk = index - chunk.m_ChunkOffset;
        if (!doNotMoveFollowingChars && chunk.m_ChunkLength <= 32 && chunk.m_ChunkChars.Length - chunk.m_ChunkLength >= count)
        {
            int num = chunk.m_ChunkLength;
            while (num > indexInChunk)
            {
                num--;
                chunk.m_ChunkChars[num + count] = chunk.m_ChunkChars[num];
            }
            chunk.m_ChunkLength += count;
            return;
        }
        StringBuilder stringBuilder = new StringBuilder(Math.Max(count, 16), chunk.m_MaxCapacity, chunk.m_ChunkPrevious);
        stringBuilder.m_ChunkLength = count;
        int num2 = Math.Min(count, indexInChunk);
        if (num2 > 0)
        {
            new ReadOnlySpan<char>(chunk.m_ChunkChars, 0, num2).CopyTo(stringBuilder.m_ChunkChars);
            int num3 = indexInChunk - num2;
            if (num3 >= 0)
            {
                new ReadOnlySpan<char>(chunk.m_ChunkChars, num2, num3).CopyTo(chunk.m_ChunkChars);
                indexInChunk = num3;
            }
        }
        chunk.m_ChunkPrevious = stringBuilder;
        chunk.m_ChunkOffset += count;
        if (num2 < count)
        {
            chunk = stringBuilder;
            indexInChunk = num2;
        }
    }

References System.Text.StringBuilder.StringBuilder(), System.SR.ArgumentOutOfRange_SmallCapacity, System.Collections.Generic.Dictionary< TKey, TValue >.CopyTo(), System.count, System.Runtime.Serialization.Dictionary, System.index, System.Text.StringBuilder.Length, System.Text.StringBuilder.m_MaxCapacity, System.Math.Max(), and System.Math.Min().

Referenced by System.Text.StringBuilder.Insert(), System.Text.StringBuilder.Insert(), and System.Text.StringBuilder.ReplaceAllInChunk().