public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
ObjectDataSignatureBuilder dataBuilder = new ObjectDataSignatureBuilder();
if (!relocsOnly)
{
dataBuilder.AddSymbol(this);
ModuleToken moduleToken = GetModuleToken(factory);
IEcmaModule targetModule = moduleToken.Module;
SignatureContext innerContext = dataBuilder.EmitFixup(factory, _fixupKind, targetModule, factory.SignatureContext);
var metadata = ReadyToRunStandaloneMethodMetadata.Compute(_method);
dataBuilder.EmitUInt(checked ((uint)metadata.ConstantData.Length));
dataBuilder.EmitBytes(metadata.ConstantData);
dataBuilder.EmitUInt(checked ((uint)metadata.TypeRefs.Length));
foreach (var typeRef in metadata.TypeRefs)
{
if (factory.SignatureContext.Resolver.GetModuleTokenForType((EcmaType)typeRef, allowDynamicallyCreatedReference: true, throwIfNotFound: false).Module == null)
{
// If there isn't a module token yet for this type, force it to exist
factory.ManifestMetadataTable._mutableModule.TryGetEntityHandle(typeRef);
}
dataBuilder.EmitTypeSignature(typeRef, innerContext);
}
MethodWithToken method = new MethodWithToken(_method, moduleToken, null, unboxing: false, context: null);
dataBuilder.EmitMethodSignature(method, enforceDefEncoding: false, enforceOwningType: false, innerContext, false);
}
return(dataBuilder.ToObjectData());
}
public bool Initialize(MutableModule mutableModule, EcmaMethodIL wrappedMethod)
{
bool failedToReplaceToken = false;
try
{
Debug.Assert(mutableModule.ModuleThatIsCurrentlyTheSourceOfNewReferences == null);
mutableModule.ModuleThatIsCurrentlyTheSourceOfNewReferences = ((EcmaMethod)wrappedMethod.OwningMethod).Module;
var owningMethodHandle = mutableModule.TryGetEntityHandle(wrappedMethod.OwningMethod);
if (!owningMethodHandle.HasValue)
{
return(false);
}
_mutableModule = mutableModule;
_maxStack = wrappedMethod.MaxStack;
_isInitLocals = wrappedMethod.IsInitLocals;
_owningMethod = wrappedMethod.OwningMethod;
_exceptionRegions = (ILExceptionRegion[])wrappedMethod.GetExceptionRegions().Clone();
_ilBytes = (byte[])wrappedMethod.GetILBytes().Clone();
_locals = (LocalVariableDefinition[])wrappedMethod.GetLocals();
for (int i = 0; i < _exceptionRegions.Length; i++)
{
var region = _exceptionRegions[i];
if (region.Kind == ILExceptionRegionKind.Catch)
{
var newHandle = _mutableModule.TryGetHandle((TypeSystemEntity)wrappedMethod.GetObject(region.ClassToken));
if (!newHandle.HasValue)
{
return(false);
}
_exceptionRegions[i] = new ILExceptionRegion(region.Kind, region.TryOffset, region.TryLength, region.HandlerOffset, region.HandlerLength, newHandle.Value, newHandle.Value);
}
}
ILTokenReplacer.Replace(_ilBytes, GetMutableModuleToken);
#if DEBUG
Debug.Assert(ReadyToRunStandaloneMethodMetadata.Compute((EcmaMethod)_owningMethod) != null);
#endif // DEBUG
}
finally
{
mutableModule.ModuleThatIsCurrentlyTheSourceOfNewReferences = null;
}
return(!failedToReplaceToken);
int GetMutableModuleToken(int token)
{
object result = wrappedMethod.GetObject(token);
int? newToken;
if (result is string str)
{
newToken = mutableModule.TryGetStringHandle(str);
}
else
{
newToken = mutableModule.TryGetHandle((TypeSystemEntity)result);
}
if (!newToken.HasValue)
{
// Toekn replacement has failed. Do not attempt to use this IL.
failedToReplaceToken = true;
return(1);
}
return(newToken.Value);
}
}
