private void Translator_VisitingMemberReferenceExpression(object sender, VisitingEventArgs <MemberReferenceExpression> e)
{
if (e.Handled)
{
return;
}
var ed = e.Node.Annotation <EventDefinition>();
if (ed != null)
{
var tar = e.Node.Target.AcceptVisitor((ILTranslator)sender, e.Context).ToArray();
if (tar.Length == 1)
{
e.Results = new[] { ((Expression)tar[0]).Property(FIELD_PREFIX + ed.Name) };
}
}
}
private void Translator_VisitingCustomEventDeclaration(object sender, VisitingEventArgs <CustomEventDeclaration> e)
{
if (e.Handled)
{
return;
}
var ilt = (ILTranslator)sender;
var tr = ilt.ResolveType(e.Node, e.Node.ReturnType);
var at = new D.ArrayType(tr);
var n = e.Node.Name;
var ad = new D.MethodDeclaration()
{
MethodName = ADD_PREFIX + n,
Parameters = new Collection <D.Parameter>()
{
new D.Parameter()
{
ParameterName = "value",
ParameterType = tr
}
}
};
ad.Statements = ilt.GetStatements(e.Node.AddAccessor.Body, e.Context);
var rd = new D.MethodDeclaration()
{
MethodName = REMOVE_PREFIX + n,
Parameters = new Collection <D.Parameter>()
{
new D.Parameter()
{
ParameterName = "value",
ParameterType = tr
}
}
};
rd.Statements = ilt.GetStatements(e.Node.RemoveAccessor.Body, e.Context);
e.Results = new Syntax[] { ad, rd };
}
private void Translator_VisitingEventDeclaration(object sender, VisitingEventArgs <EventDeclaration> e)
{
if (e.Handled)
{
return;
}
var translator = (ILTranslator)sender;
var ed = e.Node.Annotation <EventDefinition>();
if (ed == null)
{
return;
}
var delType = translator.ResolveType(e.Node, e.Node.ReturnType);
var arrayType = delType as D.ArrayType;
if (arrayType == null)
{
arrayType = (delType as D.UnionType)?.ElementTypes.OfType <D.ArrayType>().FirstOrDefault();
if (arrayType == null)
{
arrayType = delType.MakeArrayType();
}
}
var n = e.Node.Variables.Single().Name;
var fn = FIELD_PREFIX + n;
var fd = new D.FieldDeclaration()
{
FieldName = fn,
FieldType = arrayType
};
var ad = CreateAddAccessor(translator, e, arrayType, ed);
var rd = CreateRemoveAccessor(translator, e, arrayType, ed);
e.Results = new Syntax[] { fd, ad, rd };
}
private D.MethodDeclaration CreateAddAccessor(ILTranslator translator, VisitingEventArgs <EventDeclaration> e, D.ArrayType arrayType, EventDefinition ed)
{
var n = e.Node.Variables.Single().Name;
var fn = FIELD_PREFIX + n;
var union = arrayType.UnionWith(arrayType.ElementType);
var ad = new D.MethodDeclaration()
{
MethodName = ADD_PREFIX + n,
Parameters = new Collection <D.Parameter>()
{
new D.Parameter()
{
ParameterName = "value",
ParameterType = union
}
}
};
var mre = new MemberReferenceExpression()
{
Target = new ThisReferenceExpression(),
MemberName = fn
};
var ve = new IdentifierExpression("value");
mre.AddAnnotation(new TypeInformation(ed.EventType, ed.EventType));
ad.Statements = translator.GetStatements(new ExpressionStatement()
{
Expression = new AssignmentExpression()
{
Operator = AssignmentOperatorType.Add,
Left = mre,
Right = ve
}
}, e.Context);
return(ad);
}