private static void ReadLocalVariables(
ModuleDefinition module,
CilMethodBody result,
CilRawFatMethodBody fatBody)
{
if (fatBody.LocalVarSigToken != MetadataToken.Zero &&
module.TryLookupMember(fatBody.LocalVarSigToken, out var member) &&
member is StandAloneSignature {
Signature : LocalVariablesSignature localVariablesSignature
})
private static void ReadLocalVariables(ModuleDefinition module, CilMethodBody result,
CilRawFatMethodBody fatBody)
{
if (fatBody.LocalVarSigToken != MetadataToken.Zero
&& module.TryLookupMember(fatBody.LocalVarSigToken, out var member)
&& member is StandAloneSignature signature
&& signature.Signature is LocalVariablesSignature localVariablesSignature)
{
foreach (var type in localVariablesSignature.VariableTypes)
result.LocalVariables.Add(new CilLocalVariable(type));
}
}
private static void ReadExceptionHandlers(CilRawFatMethodBody fatBody, CilMethodBody result)
{
foreach (var section in fatBody.ExtraSections)
{
if (section.IsEHTable)
{
var reader = new ByteArrayReader(section.Data);
int size = section.IsFat
? CilExceptionHandler.FatExceptionHandlerSize
: CilExceptionHandler.TinyExceptionHandlerSize;
while (reader.CanRead(size))
result.ExceptionHandlers.Add(CilExceptionHandler.FromReader(result, reader, section.IsFat));
}
}
}
private CilRawMethodBody BuildFatMethodBody(MethodBodySerializationContext context, CilMethodBody body, byte[] code)
{
// Serialize local variables.
MetadataToken token;
if (body.LocalVariables.Count == 0)
{
token = MetadataToken.Zero;
}
else
{
var localVarSig = new LocalVariablesSignature(body.LocalVariables.Select(v => v.VariableType));
var standAloneSig = new StandAloneSignature(localVarSig);
token = context.TokenProvider.GetStandAloneSignatureToken(standAloneSig);
}
var fatBody = new CilRawFatMethodBody(CilMethodBodyAttributes.Fat, (ushort)body.MaxStack, token, code);
fatBody.InitLocals = body.InitializeLocals;
// Build up EH table section.
if (body.ExceptionHandlers.Count > 0)
{
fatBody.HasSections = true;
bool needsFatFormat = body.ExceptionHandlers.Any(e => e.IsFat);
var attributes = CilExtraSectionAttributes.EHTable;
if (needsFatFormat)
{
attributes |= CilExtraSectionAttributes.FatFormat;
}
var rawSectionData = SerializeExceptionHandlers(context, body.ExceptionHandlers, needsFatFormat);
var section = new CilExtraSection(attributes, rawSectionData);
fatBody.ExtraSections.Add(section);
}
return(fatBody);
}
