// Looks up an array RuntimeTypeHandle given an element's RuntimeTypeHandle and rank. A rank of -1 indicates SzArray
internal bool TryGetArrayTypeForElementType_LookupOnly(RuntimeTypeHandle elementTypeHandle, bool isMdArray, int rank, out RuntimeTypeHandle arrayTypeHandle)
{
if (isMdArray && (rank < MDArray.MinRank) && (rank > MDArray.MaxRank))
{
arrayTypeHandle = default(RuntimeTypeHandle);
return false;
}
if (TypeSystemContext.GetArrayTypesCache(isMdArray, rank).TryGetValue(elementTypeHandle, out arrayTypeHandle))
return true;
if (!isMdArray &&
!RuntimeAugments.IsDynamicType(elementTypeHandle) &&
TryGetArrayTypeForNonDynamicElementType(elementTypeHandle, out arrayTypeHandle))
{
TypeSystemContext.GetArrayTypesCache(isMdArray, rank).AddOrGetExisting(arrayTypeHandle);
return true;
}
return false;
}
// Get an array RuntimeTypeHandle given an element's RuntimeTypeHandle and rank. Pass false for isMdArray, and rank == -1 for SzArrays
public bool TryGetArrayTypeForElementType(RuntimeTypeHandle elementTypeHandle, bool isMdArray, int rank, out RuntimeTypeHandle arrayTypeHandle)
{
if (TryGetArrayTypeForElementType_LookupOnly(elementTypeHandle, isMdArray, rank, out arrayTypeHandle))
{
return true;
}
using (LockHolder.Hold(_typeLoaderLock))
{
if (isMdArray && (rank < MDArray.MinRank) && (rank > MDArray.MaxRank))
{
arrayTypeHandle = default(RuntimeTypeHandle);
return false;
}
if (TypeSystemContext.GetArrayTypesCache(isMdArray, rank).TryGetValue(elementTypeHandle, out arrayTypeHandle))
return true;
return TypeBuilder.TryBuildArrayType(elementTypeHandle, isMdArray, rank, out arrayTypeHandle);
}
}
