private SignatureData LoadSignature()
{
var moduleSymbol = _containingType.ContainingPEModule;
SignatureHeader signatureHeader;
BadImageFormatException mrEx;
ParamInfo <TypeSymbol>[] paramInfo = new MetadataDecoder(moduleSymbol, this).GetSignatureForMethod(_handle, out signatureHeader, out mrEx);
bool makeBad = (mrEx != null);
// If method is not generic, let's assign empty list for type parameters
if (!signatureHeader.IsGeneric &&
_lazyTypeParameters.IsDefault)
{
ImmutableInterlocked.InterlockedInitialize(ref _lazyTypeParameters, ImmutableArray <TypeParameterSymbol> .Empty);
}
int count = paramInfo.Length - 1;
ImmutableArray <ParameterSymbol> @params;
bool isBadParameter;
if (count > 0)
{
var builder = ImmutableArray.CreateBuilder <ParameterSymbol>(count);
for (int i = 0; i < count; i++)
{
builder.Add(PEParameterSymbol.Create(moduleSymbol, this, i, paramInfo[i + 1], out isBadParameter));
if (isBadParameter)
{
makeBad = true;
}
}
@params = builder.ToImmutable();
}
else
{
@params = ImmutableArray <ParameterSymbol> .Empty;
}
// paramInfo[0] contains information about return "parameter"
Debug.Assert(!paramInfo[0].IsByRef);
//// Dynamify object type if necessary
//paramInfo[0].Type = paramInfo[0].Type.AsDynamicIfNoPia(_containingType);
var returnParam = PEParameterSymbol.Create(moduleSymbol, this, 0, paramInfo[0], out isBadParameter);
if (makeBad || isBadParameter)
{
//InitializeUseSiteDiagnostic(new CSDiagnosticInfo(ErrorCode.ERR_BindToBogus, this));
}
var signature = new SignatureData(signatureHeader, @params, returnParam);
return(InterlockedOperations.Initialize(ref _lazySignature, signature));
}
private static ImmutableArray <ParameterSymbol> GetParameters(
PEModuleSymbol moduleSymbol,
PEPropertySymbol property,
ParamInfo <TypeSymbol>[] propertyParams,
ParamInfo <TypeSymbol>[] accessorParams,
out bool anyParameterIsBad)
{
anyParameterIsBad = false;
// First parameter is the property type.
if (propertyParams.Length < 2)
{
return(ImmutableArray <ParameterSymbol> .Empty);
}
var numAccessorParams = accessorParams.Length;
var parameters = new ParameterSymbol[propertyParams.Length - 1];
for (int i = 1; i < propertyParams.Length; i++) // from 1 to skip property/return type
{
// NOTE: this is a best guess at the Dev10 behavior. The actual behavior is
// in the unmanaged helper code that Dev10 uses to load the metadata.
var propertyParam = propertyParams[i];
var paramHandle = i < numAccessorParams ? accessorParams[i].Handle : propertyParam.Handle;
var ordinal = i - 1;
bool isBad;
parameters[ordinal] = PEParameterSymbol.Create(moduleSymbol, property, ordinal, paramHandle, propertyParam, out isBad);
if (isBad)
{
anyParameterIsBad = true;
}
}
return(parameters.AsImmutableOrNull());
}
public SignatureData(SignatureHeader header, ImmutableArray <ParameterSymbol> parameters, PEParameterSymbol returnParam)
{
this.Header = header;
this.Parameters = parameters;
this.ReturnParam = returnParam;
}