public void CustomVisitorTest()
{
var source = MultiLine(
"function func(c: System.Int32): System.Void do" +
" var b = 45; " +
" if (b == 10)" +
" skip;" +
" end;" +
"end;"
);
var result = ParseWithAbstractTreeVisitor(Compiler, source);
var text = new StringBuilder();
var visitor = new TreeVisitorBase<object>();
visitor
.Clear()
.If<BinaryExpressionNode>((_visitor, node) => {
_visitor.VisitChild(node.Left);
text.Append(" " + node.Operator.Operator + " ");
_visitor.VisitChild(node.Right);
var op = node.Operator.Operator;
return null;
})
.If<VariableDeclarationStatementNode>((_visitor, node) => _visitor.VisitChild(node.InitialValue))
.If<BlockStatementNode>((_visitor, node) => text.Append(string.Join(Environment.NewLine, node.Statements.Select(_visitor.VisitChild))))
.If<NumberConstantLiteralNode>((_visitor, node) => text.Append(node.Value.ToString(CultureInfo.InvariantCulture)))
.VisitChild(result);
text.Clear().AppendLine("digraph {");
var nodes = new List<Tuple<string, string>>();
visitor.Clear()
.DefaultVisitor((_visitor, node) => {
var name = "node" + nodes.Count;
var type = node.GetType().Name.First().ToString();
nodes.Add(Tuple.Create(name, type));
if (!node.Children.Any())
text.Append(name + ";");
foreach (var child in node.Children) {
text.Append(name + "->");
_visitor.VisitChild(child);
}
return null;
})
.VisitChild(result);
text.AppendLine();
foreach (var tuple in nodes)
text.AppendLine(string.Format("{0} [label=\"{1}\"];", tuple.Item1, tuple.Item2));
var dot = text.AppendLine("}").ToString();
}
public void CustomVisitorGraphConverterTest()
{
var source = MultiLine(
"function a(c: System.Int32): System.Int32 do" +
" var b = 45; " +
" if (b == 10)" +
" skip;" +
" end;" +
"end;"
);
var result = ParseWithAbstractTreeVisitor(Compiler, source);
var text = new StringBuilder();
var visitor = new TreeVisitorBase<string>();
var nodes = new List<Tuple<string, string>>();
var edges = new List<Tuple<string, string>>();
visitor
.Clear()
.DefaultVisitor((_visitor, node) => {
var name = "node" + nodes.Count;
var type = node.GetType().Name;
nodes.Add(Tuple.Create(name, type));
foreach (var child in node.Children) {
var childName = _visitor.VisitChild(child);
edges.Add(Tuple.Create(name, childName));
}
return name;
})
.VisitChild(result);
foreach (var node in nodes)
text.AppendLine(string.Format("g.addNode(\"{0}\", {{ label: \"{1}\" }});", node.Item1, node.Item2));
foreach (var edge in edges)
text.AppendLine(string.Format("g.addEdge(\"{0}\", \"{1}\");", edge.Item1, edge.Item2));
var js = text.ToString();
}
