protected override Expression VisitTry(TryExpression node)
=> VisitIfEqual(node, other => ExpressionEqualityComparer.NullsOrEquals(node.Handlers, other.Handlers, (n, o) => n.Select(h => h.Test).SequenceEqual(o.Select(h => h.Test))),
other => Visit((node.Handlers ?? Enumerable.Empty <CatchBlock>()).Select(n => n.Body).ToList(), (other.Handlers ?? Enumerable.Empty <CatchBlock>()).Select(n => n.Body).ToList()),
other => Visit((node.Handlers ?? Enumerable.Empty <CatchBlock>()).Select(n => n.Filter).ToList(), (other.Handlers ?? Enumerable.Empty <CatchBlock>()).Select(n => n.Filter).ToList()),
other => Visit((node.Handlers ?? Enumerable.Empty <CatchBlock>()).Select(n => n.Variable).ToList(), (other.Handlers ?? Enumerable.Empty <CatchBlock>()).Select(n => n.Variable).ToList()),
other => Visit(node.Body, other.Body),
other => Visit(node.Fault, other.Fault),
other => Visit(node.Finally, other.Finally));
protected override Expression VisitDebugInfo(DebugInfoExpression node)
=> VisitIfEqual(node, other => node.EndColumn == other.EndColumn &&
node.EndLine == other.EndLine &&
node.IsClear == other.IsClear &&
node.StartColumn == other.StartColumn &&
node.StartLine == other.StartLine &&
ExpressionEqualityComparer.NullsOrEquals(node.Document, other.Document, (n, o) =>
n.DocumentType == o.DocumentType &&
n.FileName == o.FileName &&
n.Language == o.Language &&
n.LanguageVendor == o.LanguageVendor));
private void Visit <TExpression>(ICollection <TExpression> nodes, ICollection <TExpression> otherNodes)
where TExpression : Expression
{
if (AreEqual)
{
if (!(ExpressionEqualityComparer.NullsOrEquals(nodes, otherNodes, (n, o) => n.Count == o.Count)))
{
Break(nodes, otherNodes);
}
else if (nodes != null && otherNodes != null)
{
foreach (var pair in nodes.Zip(otherNodes, (node, other) => new { node, other }))
{
Visit(pair.node, pair.other);
}
}
}
}
private static bool Equals(MemberListBinding binding, MemberListBinding other) => ExpressionEqualityComparer.NullsOrEquals(binding.Initializers, other.Initializers, (n, o) => n.Select(i => i.AddMethod).SequenceEqual(o.Select(i => i.AddMethod)));
private static bool Equals(MemberBinding binding, MemberBinding other)
=> ExpressionEqualityComparer.NullsOrEquals(binding, other, (n, o) => n.BindingType == o.BindingType &&
n.Member == o.Member &&
(EqualsIfType <MemberMemberBinding>(n, o, Equals)
?? EqualsIfType <MemberListBinding>(n, o, Equals)
?? false));
private static bool Equals(ICollection <MemberBinding> binding, ICollection <MemberBinding> other) => ExpressionEqualityComparer.NullsOrEquals(binding, other, (n, o) => n.Count == o.Count && n.Zip(o, Equals).All(b => b));
private static bool Equals(LabelTarget target, LabelTarget other) => ExpressionEqualityComparer.NullsOrEquals(target, other, (n, o) => n.Name == o.Name && n.Type == o.Type);
protected override Expression VisitListInit(ListInitExpression node)
=> VisitIfEqual(node, other => ExpressionEqualityComparer.NullsOrEquals(node.Initializers, other.Initializers, (n, o) => n.Count == o.Count && n.Select(i => i.AddMethod).Zip(o.Select(i => i.AddMethod), memberEquals).All(b => b)),
other => Visit((node.Initializers ?? Enumerable.Empty <ElementInit>()).SelectMany(n => n.Arguments).ToList(), (other.Initializers ?? Enumerable.Empty <ElementInit>()).SelectMany(n => n.Arguments).ToList()),
other => Visit(node.NewExpression, other.NewExpression));
protected override Expression VisitSwitch(SwitchExpression node)
=> VisitIfEqual(node, other => memberEquals(node.Comparison, other.Comparison) && ExpressionEqualityComparer.NullsOrEquals(node.Cases, other.Cases, (n, o) => n.Count == o.Count),
other => Visit((node.Cases ?? Enumerable.Empty <SwitchCase>()).SelectMany(n => n.TestValues).ToList(), (other.Cases ?? Enumerable.Empty <SwitchCase>()).SelectMany(n => n.TestValues).ToList()),
other => Visit((node.Cases ?? Enumerable.Empty <SwitchCase>()).Select(n => n.Body).ToList(), (other.Cases ?? Enumerable.Empty <SwitchCase>()).Select(n => n.Body).ToList()),
other => Visit(node.DefaultBody, other.DefaultBody),
other => Visit(node.SwitchValue, other.SwitchValue));
protected override Expression VisitNew(NewExpression node) => VisitIfEqual(node, other => memberEquals(node.Constructor, other.Constructor) && ExpressionEqualityComparer.NullsOrEquals(node.Members, other.Members, (n, o) => n.Count == o.Count && n.Zip(o, memberEquals).All(b => b)), other => Visit(node.Arguments, other.Arguments));
protected override Expression VisitDynamic(DynamicExpression node) => VisitIfEqual(node, other => typeEquals(node.DelegateType, other.DelegateType) && ExpressionEqualityComparer.NullsOrEquals(node.Binder, other.Binder, (n, o) => n.Equals(o)), other => Visit(node.Arguments, other.Arguments));