GetCandidatePostconditionsForAutoProperties <Local, Parameter, Method, Field, Property, Event, Type, Attribute, Assembly>
(IEnumerable <BoxedExpression> boxedExpressions, IDecodeMetaData <Local, Parameter, Method, Field, Property, Event, Type, Attribute, Assembly> mdd,
FieldsDB <Local, Parameter, Method, Field, Property, Event, Type, Attribute, Assembly> fieldsDB)
{
var result = new List <Tuple <Method, BoxedExpression.AssertExpression, Provenance> >();
if (boxedExpressions != null)
{
foreach (var post in boxedExpressions.Where(exp => { return(exp.IsBinary); }))
{
Contract.Assume(post != null);
BoxedExpression exp;
if (post.IsCheckExpNotNotNull(out exp))
{
var path = exp.AccessPath;
if (path != null)
{
Method m;
if (path[0].ToString() == "this" && path[path.Length - 1].IsMethodCall && path[path.Length - 1].TryMethod(out m) && mdd.IsAutoPropertyMember(m))
{
Method setter;
if (mdd.TryGetSetterFromGetter(m, out setter) && fieldsDB.IsCalledInANonConstructor(setter))
{
#if DEBUG
Console.WriteLine("[INFERENCE] Skipping the inference of the postcondition '{0}' to an autoproperty because found it is set in a non-constructor", post);
#endif
continue;
}
var t = mdd.ReturnType(m);
var neqNull = BoxedExpression.Binary(BinaryOperator.Cne_Un, BoxedExpression.Result(t), BoxedExpression.Const(null, t, mdd));
#if DEBUG
Console.WriteLine("[INFERENCE] Propagating the postcondition '{0}' to the autoproperty", post);
#endif
var p = new BoxedExpression.AssertExpression(neqNull, "ensures", APC.Dummy, null, null);
result.Add(new Tuple <Method, BoxedExpression.AssertExpression, Provenance>(m, p, null));
}
}
}
}
}
return(result);
}