private AssemblyAndLocation Load(string reference)
{
MetadataShadowCopy copy = null;
try
{
if (_shadowCopyProvider != null)
{
// All modules of the assembly has to be copied at once to keep the metadata consistent.
// This API copies the xml doc file and keeps the memory-maps of the metadata.
// We don't need that here but presumably the provider is shared with the compilation API that needs both.
// Ideally the CLR would expose API to load Assembly given a byte* and not create their own memory-map.
copy = _shadowCopyProvider.GetMetadataShadowCopy(reference, MetadataImageKind.Assembly);
}
var result = _runtimeAssemblyLoader.LoadFromPath((copy != null) ? copy.PrimaryModule.FullPath : reference);
if (_shadowCopyProvider != null && result.GlobalAssemblyCache)
{
_shadowCopyProvider.SuppressShadowCopy(reference);
}
return(result);
}
catch (FileNotFoundException)
{
return(default(AssemblyAndLocation));
}
finally
{
// copy holds on the file handle, we need to keep the handle
// open until the file is locked by the CLR assembly loader:
copy?.DisposeFileHandles();
}
}
public void Errors()
{
Assert.Throws <ArgumentNullException>(() => _provider.NeedsShadowCopy(null));
Assert.Throws <ArgumentException>(() => _provider.NeedsShadowCopy("c:foo.dll"));
Assert.Throws <ArgumentException>(() => _provider.NeedsShadowCopy("bar.dll"));
Assert.Throws <ArgumentException>(() => _provider.NeedsShadowCopy(@"\bar.dll"));
Assert.Throws <ArgumentException>(() => _provider.NeedsShadowCopy(@"../bar.dll"));
Assert.Throws <ArgumentNullException>(() => _provider.SuppressShadowCopy(null));
Assert.Throws <ArgumentException>(() => _provider.SuppressShadowCopy("c:foo.dll"));
Assert.Throws <ArgumentException>(() => _provider.SuppressShadowCopy("bar.dll"));
Assert.Throws <ArgumentException>(() => _provider.SuppressShadowCopy(@"\bar.dll"));
Assert.Throws <ArgumentException>(() => _provider.SuppressShadowCopy(@"../bar.dll"));
Assert.Throws <ArgumentNullException>(() => _provider.GetReference(null));
Assert.Throws <ArgumentException>(() => _provider.GetReference("c:foo.dll"));
Assert.Throws <ArgumentException>(() => _provider.GetReference("bar.dll"));
Assert.Throws <ArgumentException>(() => _provider.GetReference(@"\bar.dll"));
Assert.Throws <ArgumentException>(() => _provider.GetReference(@"../bar.dll"));
Assert.Throws <ArgumentOutOfRangeException>(() => _provider.GetMetadataShadowCopy(@"c:\foo.dll", (MetadataImageKind)Byte.MaxValue));
Assert.Throws <ArgumentNullException>(() => _provider.GetMetadataShadowCopy(null, MetadataImageKind.Assembly));
Assert.Throws <ArgumentException>(() => _provider.GetMetadataShadowCopy("c:foo.dll", MetadataImageKind.Assembly));
Assert.Throws <ArgumentException>(() => _provider.GetMetadataShadowCopy("bar.dll", MetadataImageKind.Assembly));
Assert.Throws <ArgumentException>(() => _provider.GetMetadataShadowCopy(@"\bar.dll", MetadataImageKind.Assembly));
Assert.Throws <ArgumentException>(() => _provider.GetMetadataShadowCopy(@"../bar.dll", MetadataImageKind.Assembly));
Assert.Throws <ArgumentOutOfRangeException>(() => _provider.GetMetadata(@"c:\foo.dll", (MetadataImageKind)Byte.MaxValue));
Assert.Throws <ArgumentNullException>(() => _provider.GetMetadata(null, MetadataImageKind.Assembly));
Assert.Throws <ArgumentException>(() => _provider.GetMetadata("c:foo.dll", MetadataImageKind.Assembly));
}