ModuleTableReader.cs

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using System.Reflection.Internal;
 
namespace System.Reflection.Metadata.Ecma335;
 
internal readonly struct ModuleTableReader
{
    internal readonly int NumberOfRows;
 
    private readonly bool _IsStringHeapRefSizeSmall;
 
    private readonly bool _IsGUIDHeapRefSizeSmall;
 
    private readonly int _GenerationOffset;
 
    private readonly int _NameOffset;
 
    private readonly int _MVIdOffset;
 
    private readonly int _EnCIdOffset;
 
    private readonly int _EnCBaseIdOffset;
 
    internal readonly int RowSize;
 
    internal readonly MemoryBlock Block;
 
    internal ModuleTableReader(int numberOfRows, int stringHeapRefSize, int guidHeapRefSize, MemoryBlock containingBlock, int containingBlockOffset)
    {
        NumberOfRows = numberOfRows;
        _IsStringHeapRefSizeSmall = stringHeapRefSize == 2;
        _IsGUIDHeapRefSizeSmall = guidHeapRefSize == 2;
        _GenerationOffset = 0;
        _NameOffset = _GenerationOffset + 2;
        _MVIdOffset = _NameOffset + stringHeapRefSize;
        _EnCIdOffset = _MVIdOffset + guidHeapRefSize;
        _EnCBaseIdOffset = _EnCIdOffset + guidHeapRefSize;
        RowSize = _EnCBaseIdOffset + guidHeapRefSize;
        Block = containingBlock.GetMemoryBlockAt(containingBlockOffset, RowSize * numberOfRows);
    }
    internal ModuleTableReader(int numberOfRows, int stringHeapRefSize, int guidHeapRefSize, MemoryBlock containingBlock, int containingBlockOffset) {…}
 
    internal ushort GetGeneration()
    {
        return Block.PeekUInt16(_GenerationOffset);
    }
    internal ushort GetGeneration() {…}
 
    internal StringHandle GetName()
    {
        return StringHandle.FromOffset(Block.PeekHeapReference(_NameOffset, _IsStringHeapRefSizeSmall));
    }
    internal StringHandle GetName() {…}
 
    internal GuidHandle GetMvid()
    {
        return GuidHandle.FromIndex(Block.PeekHeapReference(_MVIdOffset, _IsGUIDHeapRefSizeSmall));
    }
    internal GuidHandle GetMvid() {…}
 
    internal GuidHandle GetEncId()
    {
        return GuidHandle.FromIndex(Block.PeekHeapReference(_EnCIdOffset, _IsGUIDHeapRefSizeSmall));
    }
    internal GuidHandle GetEncId() {…}
 
    internal GuidHandle GetEncBaseId()
    {
        return GuidHandle.FromIndex(Block.PeekHeapReference(_EnCBaseIdOffset, _IsGUIDHeapRefSizeSmall));
    }
    internal GuidHandle GetEncBaseId() {…}
}
internal readonly struct ModuleTableReader {…};