private void Write(TypeSig typeSig)
{
const ElementType DEFAULT_ELEMENT_TYPE = ElementType.Boolean;
if (typeSig == null)
{
helper.Error("TypeSig is null");
writer.Write((byte)DEFAULT_ELEMENT_TYPE);
return;
}
if (!recursionCounter.Increment())
{
helper.Error("Infinite recursion");
writer.Write((byte)DEFAULT_ELEMENT_TYPE);
return;
}
uint count;
switch (typeSig.ElementType)
{
case ElementType.Void:
case ElementType.Boolean:
case ElementType.Char:
case ElementType.I1:
case ElementType.U1:
case ElementType.I2:
case ElementType.U2:
case ElementType.I4:
case ElementType.U4:
case ElementType.I8:
case ElementType.U8:
case ElementType.R4:
case ElementType.R8:
case ElementType.String:
case ElementType.TypedByRef:
case ElementType.I:
case ElementType.U:
case ElementType.Object:
case ElementType.Sentinel:
writer.Write((byte)typeSig.ElementType);
break;
case ElementType.Ptr:
case ElementType.ByRef:
case ElementType.SZArray:
case ElementType.Pinned:
writer.Write((byte)typeSig.ElementType);
Write(typeSig.Next);
break;
case ElementType.ValueType:
case ElementType.Class:
writer.Write((byte)typeSig.ElementType);
Write(((TypeDefOrRefSig)typeSig).TypeDefOrRef);
break;
case ElementType.Var:
case ElementType.MVar:
writer.Write((byte)typeSig.ElementType);
WriteCompressedUInt32(((GenericSig)typeSig).Number);
break;
case ElementType.Array:
writer.Write((byte)typeSig.ElementType);
var ary = (ArraySig)typeSig;
Write(ary.Next);
WriteCompressedUInt32(ary.Rank);
if (ary.Rank == 0)
{
break;
}
count = WriteCompressedUInt32((uint)ary.Sizes.Count);
for (uint i = 0; i < count; i++)
{
WriteCompressedUInt32(ary.Sizes[(int)i]);
}
count = WriteCompressedUInt32((uint)ary.LowerBounds.Count);
for (uint i = 0; i < count; i++)
{
WriteCompressedInt32(ary.LowerBounds[(int)i]);
}
break;
case ElementType.GenericInst:
writer.Write((byte)typeSig.ElementType);
var gis = (GenericInstSig)typeSig;
Write(gis.GenericType);
count = WriteCompressedUInt32((uint)gis.GenericArguments.Count);
for (uint i = 0; i < count; i++)
{
Write(gis.GenericArguments[(int)i]);
}
break;
case ElementType.ValueArray:
writer.Write((byte)typeSig.ElementType);
Write(typeSig.Next);
WriteCompressedUInt32((typeSig as ValueArraySig).Size);
break;
case ElementType.FnPtr:
writer.Write((byte)typeSig.ElementType);
Write((typeSig as FnPtrSig).Signature);
break;
case ElementType.CModReqd:
case ElementType.CModOpt:
writer.Write((byte)typeSig.ElementType);
Write((typeSig as ModifierSig).Modifier);
Write(typeSig.Next);
break;
case ElementType.Module:
writer.Write((byte)typeSig.ElementType);
WriteCompressedUInt32((typeSig as ModuleSig).Index);
Write(typeSig.Next);
break;
case ElementType.End:
case ElementType.R:
case ElementType.Internal:
default:
helper.Error("Unknown or unsupported element type");
writer.Write((byte)DEFAULT_ELEMENT_TYPE);
break;
}
recursionCounter.Decrement();
}
uint WriteCompressedUInt32(uint value)
{
if (value >= 0x1FFFFFFF)
{
helper.Error("UInt32 value is too big and can't be compressed");
value = 0x1FFFFFFF;
}
writer.WriteCompressedUInt32(value);
return(value);
}
