public void AllowsEarlyExitWhileVisiting()
{
var ast = Parser.Parse("{ a, b { x }, c }", new ParseOptions
{
NoLocation = true,
});
var visitor = new VisitedNodes(node =>
{
if (node is Name && (node as Name).Value == "x")
{
throw new Visitor <INode> .BreakException();
}
return(node);
});
visitor.VisitWithBreak(ast);
visitor.Visited.ShouldBeEquivalentTo(ImmutableArray.Create(
Tuple.Create(true, NodeType.Document, (object)null),
Tuple.Create(true, NodeType.OperationDefinition, (object)null),
Tuple.Create(true, NodeType.SelectionSet, (object)null),
Tuple.Create(true, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Name, (object)"a"),
Tuple.Create(false, NodeType.Name, (object)"a"),
Tuple.Create(false, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Name, (object)"b"),
Tuple.Create(false, NodeType.Name, (object)"b"),
Tuple.Create(true, NodeType.SelectionSet, (object)null),
Tuple.Create(true, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Name, (object)"x")
));
}
public void AllowsEarlyExitWhileVisiting()
{
var ast = Parser.Parse("{ a, b { x }, c }", new ParseOptions
{
NoLocation = true,
});
var visitor = new VisitedNodes(node =>
{
if (node is Name && (node as Name).Value == "x")
{
throw new Visitor<INode>.BreakException();
}
return node;
});
visitor.VisitWithBreak(ast);
visitor.Visited.ShouldBeEquivalentTo(ImmutableArray.Create(
Tuple.Create(true, NodeType.Document, (object)null),
Tuple.Create(true, NodeType.OperationDefinition, (object)null),
Tuple.Create(true, NodeType.SelectionSet, (object)null),
Tuple.Create(true, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Name, (object)"a"),
Tuple.Create(false, NodeType.Name, (object)"a"),
Tuple.Create(false, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Name, (object)"b"),
Tuple.Create(false, NodeType.Name, (object)"b"),
Tuple.Create(true, NodeType.SelectionSet, (object)null),
Tuple.Create(true, NodeType.Field, (object)null),
Tuple.Create(true, NodeType.Name, (object)"x")
));
}
