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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Microsoft.Boogie.ModelViewer.Base
{
public class Provider : ILanguageProvider
{
public static Provider Instance = new Provider();
private Provider() { }
public bool IsMyModel(Model m)
{
return true;
}
public ILanguageSpecificModel GetLanguageSpecificModel(Model m, ViewOptions opts)
{
return new GenericModel(m, opts);
}
}
public class GenericModel : LanguageModel
{
List<BaseState> states = new List<BaseState>();
public GenericModel(Model m, ViewOptions opts)
: base(m, opts)
{
foreach (var s in m.States)
states.Add(new BaseState(this, s) { Name = s.Name });
foreach (var s in states)
this.Flush(s.nodes);
}
public override IEnumerable<IState> States
{
get { return states; }
}
}
public class BaseState : IState
{
internal GenericModel m;
Model.CapturedState st;
internal List<IDisplayNode> nodes = new List<IDisplayNode>();
internal Dictionary<Model.Element, string> niceName = new Dictionary<Model.Element, string>();
public BaseState(GenericModel m, Model.CapturedState st)
{
this.st = st;
this.m = m;
foreach (var v in st.AllVariables) {
var e = st.TryGet(v);
m.RegisterLocalValue(v, e);
nodes.Add(new ElementNode(this, v, e));
niceName[e] = v;
foreach (var r in e.References) {
if (r.Args.Length == 1 && r.Args[0] == e) {
if (!niceName.ContainsKey(e))
niceName[e] = r.Func.Name + "(" + v + ")";
}
}
}
nodes.Add(new ContainerNode<Model.Func>("[Functions]", f => f.Arity == 0 ? null : Function(f), m.model.Functions));
nodes.Add(new ContainerNode<Model.Func>("[Constants]", f => f.Arity != 0 ? null : new AppNode(this, f.Apps.First()), m.model.Functions));
}
public virtual SourceViewState ShowSource()
{
return null;
}
IDisplayNode Function(Model.Func f)
{
return new ContainerNode<Model.FuncTuple>(f.Name, a => new AppNode(this, a), f.Apps);
}
public virtual string Name { get; set; }
public virtual IEnumerable<IDisplayNode> Nodes
{
get { return nodes; }
}
}
public class ElementNode : DisplayNode
{
BaseState st;
public ElementNode(BaseState st, string name, Model.Element elt) : base(st.m, name, elt) { this.st = st; }
protected override void ComputeChildren()
{
children.Add(new ContainerNode<Model.FuncTuple>(" == ", e => new AppNode(st, e), Element.References.Where(t => t.Result == Element)));
foreach (var e in Element.References) {
if (e.Args.Contains(Element))
children.Add(new AppNode(st, e, x => x == Element ? "*" : st.niceName.GetWithDefault(x, null)));
}
}
}
public class AppNode : ElementNode
{
protected Model.FuncTuple tupl;
public AppNode(BaseState m, Model.FuncTuple t) : this(m, t, _ => null) { }
public AppNode(BaseState m, Model.FuncTuple t, Func<Model.Element, string> nameElement)
: base(m, t.Func.Name, t.Result)
{
tupl = t;
var sb = new StringBuilder();
sb.Append(t.Func.Name);
if (t.Args.Length > 0) {
sb.Append("(");
for (int i = 0; i < t.Args.Length; ++i) {
var n = nameElement(t.Args[i]);
if (n == null)
sb.AppendFormat("%{0}, ", i);
else
sb.AppendFormat("{0}, ", n);
}
sb.Length -= 2;
sb.Append(")");
}
name = new EdgeName(m.m, sb.ToString(), t.Args);
}
}
}
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