protected override IExpression ProjectAsNonConstantIExpression()
{
if (this.cachedProjection == null) {
object member = this.ResolveAsValueContainer(true);
INestedTypeDefinition groupType = member as INestedTypeDefinition;
if (groupType != null) {
// expression refers to a group
Cast cast = new Cast(new Parenthesis(this.Instance, this.SourceLocation), TypeExpression.For(this.Type), this.SourceLocation);
cast.SetContainingExpression(this);
// TODO the projection of cast looses its source location, it only retains the source location of the casted expression,
// so we stick the proper location on the casted expression itself
return this.cachedProjection = cast.ProjectAsIExpression();
}
IFieldDefinition fieldDef = member as IFieldDefinition;
if (fieldDef != null) {
var addrOf = new VccAddressOf(new AddressableExpression(new ProjectionHelper(this.Qualifier, this.SimpleName, fieldDef, this.SourceLocation)), this.SourceLocation);
addrOf.SetContainingExpression(this);
return this.cachedProjection = addrOf.ProjectAsIExpression();
}
this.cachedProjection = new DummyExpression(this.SourceLocation);
}
return this.cachedProjection;
}