public override bool TrySetType(TypeNode expectedType, IMetaDataProvider metaDataProvider, out TypeNode resultType)
{
switch (this.Element)
{
case SpecialPathElementKind.Length:
this.castTo = metaDataProvider.IsArray(expectedType) ||
metaDataProvider.System_String.Equals(expectedType)
? ""
: "System.Array";
resultType = metaDataProvider.System_Int32;
return(true);
case SpecialPathElementKind.Deref:
if (metaDataProvider.IsManagedPointer(expectedType))
{
TypeNode type = metaDataProvider.ElementType(expectedType);
this.type = type;
resultType = type;
return(true);
}
resultType = default(TypeNode);
return(false);
default:
resultType = default(TypeNode);
return(false);
}
}
public override Domain <E, V> Entry(APC pc, Method method, Domain <E, V> data)
{
APC at = ContextProvider.MethodContext.CFG.Next(pc);
Domain <E, V> domain = data;
IIndexable <Parameter> parameters = MetaDataProvider.Parameters(method);
TypeNode eventArgsType;
bool systemType = MetaDataProvider.TryGetSystemType("System.EventArgs", out eventArgsType);
for (int i = 0; i < parameters.Count; i++)
{
Parameter p = parameters [i];
TypeNode pType = MetaDataProvider.ParameterType(p);
if (MetaDataProvider.IsManagedPointer(pType))
{
V sv;
if (ContextProvider.ValueContext.TryParameterValue(at, p, out sv))
{
domain = AssumeNonNull(sv, domain);
}
}
else
{
V sv;
if (i == 0 && parameters.Count == 1 && MetaDataProvider.IsArray(pType) &&
MetaDataProvider.Name(method) == "Main" && MetaDataProvider.IsStatic(method) &&
ContextProvider.ValueContext.TryParameterValue(pc, p, out sv))
{
domain = AssumeNonNull(sv, domain);
}
}
}
V sv1;
if (systemType && parameters.Count == 2 && MetaDataProvider.Equal(MetaDataProvider.System_Object, MetaDataProvider.ParameterType(parameters [0])) &&
MetaDataProvider.DerivesFrom(MetaDataProvider.ParameterType(parameters [1]), eventArgsType) &&
ContextProvider.ValueContext.TryParameterValue(pc, parameters [1], out sv1))
{
domain = AssumeNonNull(sv1, domain);
}
if (!MetaDataProvider.IsStatic(method) && ContextProvider.ValueContext.TryParameterValue(pc, MetaDataProvider.This(method), out sv1))
{
domain = AssumeNonNull(sv1, domain);
}
return(domain);
}