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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Microsoft.Boogie.ModelViewer
{
public interface ILanguageProvider
{
bool IsMyModel(Model m);
ILanguageSpecificModel GetLanguageSpecificModel(Model m);
}
public interface ILanguageSpecificModel
{
string CanonicalName(Model.Element elt);
Model.Element FindElement(string canonicalName);
string PathName(IEnumerable<IDisplayNode> path);
IEnumerable<IState> States { get; }
IEnumerable<string> SortFields(IEnumerable<string> fields);
}
public interface IState
{
string Name { get; }
IEnumerable<IDisplayNode> Nodes { get; }
}
[Flags]
public enum NodeState
{
Normal = 0,
Changed = 1
}
public interface IDisplayNode
{
/// <summary>
/// Used for indexing the state tree.
/// </summary>
string Name { get; }
NodeState State { get; }
string Value { get; }
string ToolTip { get; }
/// <summary>
/// Used to determine aliasing. Can be null.
/// </summary>
Model.Element Element { get; }
IEnumerable<Model.Element> References { get; }
IEnumerable<IDisplayNode> Children { get; }
object ViewSync { get; set; }
}
public class TopState : IState
{
protected IDisplayNode[] children;
protected string name;
public TopState(string name, IEnumerable<IDisplayNode> nodes)
{
this.name = name;
children = nodes.ToArray();
}
public string Name
{
get { return name; }
}
public IEnumerable<IDisplayNode> Nodes
{
get { return children; }
}
}
public abstract class DisplayNode : IDisplayNode
{
protected EdgeName name;
protected Model.Element element;
protected ILanguageSpecificModel langModel;
protected List<IDisplayNode> children;
public DisplayNode(ILanguageSpecificModel model, string n, Model.Element elt)
: this(model, new EdgeName(n), elt) {}
public DisplayNode(ILanguageSpecificModel model, EdgeName n, Model.Element elt)
{
langModel = model;
name = n;
element = elt;
}
public virtual string ToolTip
{
get { return null; }
}
public virtual IEnumerable<IDisplayNode> Children
{
get
{
if (children == null) {
children = new List<IDisplayNode>();
ComputeChildren();
}
return children;
}
}
protected virtual void ComputeChildren()
{
}
public virtual NodeState State { get { return NodeState.Normal; } }
public object ViewSync { get; set; }
public virtual string Name
{
get { return name.ToString(); }
}
public virtual Model.Element Element
{
get { return element; }
}
public virtual string Value
{
get
{
if (element == null)
return "";
return langModel.CanonicalName(element);
}
}
public IEnumerable<Model.Element> References
{
get
{
foreach (var r in name.Dependencies)
yield return r;
if (element != null)
yield return element;
}
}
}
public class ContainerNode<T> : DisplayNode
{
protected Func<T, IDisplayNode> convert;
protected IEnumerable<T> data;
public ContainerNode(EdgeName name, Func<T, IDisplayNode> convert, IEnumerable<T> data) : base(null, name, null)
{
this.convert = convert;
this.data = data;
}
public ContainerNode(string name, Func<T, IDisplayNode> convert, IEnumerable<T> data)
: this(new EdgeName(name), convert, data)
{
}
protected override void ComputeChildren()
{
foreach (var f in data) {
var res = convert(f);
if (res != null)
children.Add(res);
}
}
}
public static class Util
{
public static void Assert(bool cond)
{
if (!cond) throw new System.Exception("assertion violation");
}
public static string Concat(this IEnumerable<string> strs, string sep)
{
var res = new StringBuilder();
foreach (var e in strs)
res.Append(e).Append(sep);
if (res.Length > 0)
res.Length -= sep.Length;
return res.ToString();
}
public static IEnumerable<T> Empty<T>() { yield break; }
public static IEnumerable<T> Singleton<T>(T e) { yield return e; }
public static IEnumerable<T> Concat1<T>(this IEnumerable<T> s, T e) { return s.Concat(Singleton(e)); }
public static IEnumerable<T> Map<S, T>(this IEnumerable<S> inp, Func<S, T> conv)
{
foreach (var s in inp) yield return conv(s);
}
public static void Iter<T>(this IEnumerable<T> inp, Action<T> fn)
{
foreach (var s in inp) fn(s);
}
public static T OrElse<T>(T a, T b)
where T : class
{
if (a != null) return a;
return b;
}
public static S GetWithDefault<T, S>(this Dictionary<T, S> dict, T key, S defl)
{
S r;
if (dict.TryGetValue(key, out r))
return r;
return defl;
}
}
}
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