Misaki/Misaki.HighPerformance
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Improve performance and safety

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This commit is contained in:
Misaki
2026-02-01 01:56:17 +09:00
parent 1fee890329
commit c36405645b
32 changed files with 2050 additions and 360 deletions
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21
Misaki.HighPerformance.LowLevel/Collections/FixedText.tt
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@@ -21,8 +21,10 @@ namespace Misaki.HighPerformance.LowLevel.Collections;
[StructLayout(LayoutKind.Sequential, Size = <#= i #>)]
public unsafe struct FixedText<#= i #>
{
public const int MAX_LENGTH = <#= i - 2 #>;
private ushort _length;
private fixed byte _buffer[<#= i - 2 #>];
private fixed byte _buffer[MAX_LENGTH];
public readonly ushort Length => _length;
public string Value
@@ -43,14 +45,14 @@ public unsafe struct FixedText<#= i #>
}
var maxBytes = Encoding.UTF8.GetByteCount(value);
if (maxBytes > <#= i - 2 #>)
if (maxBytes > MAX_LENGTH)
{
throw new ArgumentException("Input string is too long to fit in FixedText<#= i #>.");
}
fixed (byte* bufferPtr = _buffer)
{
_length = (ushort)Encoding.UTF8.GetBytes(value, new Span<byte>(bufferPtr, <#= i - 2 #>));
_length = (ushort)Encoding.UTF8.GetBytes(value, new Span<byte>(bufferPtr, MAX_LENGTH));
}
}
}
@@ -58,7 +60,7 @@ public unsafe struct FixedText<#= i #>
public FixedText<#= i #>(ReadOnlySpan<char> input)
{
var maxBytes = Encoding.UTF8.GetByteCount(input);
if (maxBytes > <#= i - 2 #>)
if (maxBytes > MAX_LENGTH)
{
throw new ArgumentException("Input string is too long to fit in FixedText<#= i #>.");
}
@@ -66,7 +68,7 @@ public unsafe struct FixedText<#= i #>
fixed (char* inputPtr = input)
fixed (byte* bufferPtr = _buffer)
{
var actualByteCount = Encoding.UTF8.GetBytes(inputPtr, input.Length, bufferPtr, <#= i - 2 #>);
var actualByteCount = Encoding.UTF8.GetBytes(inputPtr, input.Length, bufferPtr, MAX_LENGTH);
_length = (ushort)actualByteCount;
}
}
@@ -83,7 +85,7 @@ public unsafe struct FixedText<#= i #>
public FixedText<#= i #>(ReadOnlySpan<byte> input)
{
if (input.Length > <#= i - 2 #>)
if (input.Length > MAX_LENGTH)
{
throw new ArgumentException("Input byte array is too long to fit in FixedText<#= i #>.");
}
@@ -112,12 +114,9 @@ public unsafe struct FixedText<#= i #>
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public byte* GetUnsafePointer()
public readonly byte* GetUnsafePtr()
{
fixed (byte* ptr = _buffer)
{
return ptr;
}
return (byte*)((ushort*)Unsafe.AsPointer(in this) + 1);
}
public override string ToString()