C# Lookup类代码示例

        public override void Import(Lookup settings)
        {
            Dictionary<string, OptionItem> optionLookup = new Dictionary<string, OptionItem>();
            StoryProgression.Main.GetOptionLookup(optionLookup);

            foreach(KeyValuePair<string,OptionItem> option in optionLookup)
            {
                string value = settings.GetString(option.Key);
                if (value == null) continue;

                try
                {
                    option.Value.PersistValue = value;
                }
                catch (Exception e)
                {
                    Common.Exception(option.Key, e);
                }
            }

            StoryProgression.Main.Options.ImportCastes(settings);

            foreach (OptionItem option in optionLookup.Values)
            {
                IAfterImportOptionItem afterOption = option as IAfterImportOptionItem;
                if (afterOption == null) continue;

                afterOption.PerformAfterImport();
            }
        }

        public override void Export(Lookup settings)
        {
            List<OptionItem> allOptions = new List<OptionItem>();
            StoryProgression.Main.GetOptions(allOptions, false, IsExportable);

            StoryProgression.Main.Options.ExportCastes(settings);

            foreach (OptionItem option in StoryProgression.Main.Options.GetOptions(StoryProgression.Main, "Town", false))
            {
                allOptions.Add(option);
            }

            foreach (OptionItem option in StoryProgression.Main.Options.GetImmigrantOptions(StoryProgression.Main))
            {
                allOptions.Add(option);
            }

            foreach (OptionItem option in allOptions)
            {
                try
                {
                    List<string> names = GetExportKey(option);
                    if ((names == null) || (names.Count == 0)) continue;

                    settings.Add(names[0], option.GetExportValue());
                }
                catch (Exception e)
                {
                    Common.Exception(option.Name, e);
                }
            }
        }

        /// <summary>
        /// Creates an instance of this class using the given bucket data.
        /// </summary>
        /// <param name="itemNames">Item types being batched on: null indicates no batching is occurring</param>
        /// <param name="itemMetadata">Hashtable of item metadata values: null indicates no batching is occurring</param>
        internal ItemBucket
        (
            ICollection<string> itemNames,
            Dictionary<string, string> metadata,
            Lookup lookup,
            int bucketSequenceNumber
        )
        {
            ErrorUtilities.VerifyThrow(lookup != null, "Need lookup.");

            // Create our own lookup just for this bucket
            _lookup = lookup.Clone();

            // Push down the items, so that item changes in this batch are not visible to parallel batches
            _lookupEntry = _lookup.EnterScope("ItemBucket()");

            // Add empty item groups for each of the item names, so that (unless items are added to this bucket) there are
            // no item types visible in this bucket among the item types being batched on
            if (itemNames != null)
            {
                foreach (string name in itemNames)
                {
                    _lookup.PopulateWithItems(name, new List<ProjectItemInstance>());
                }
            }

            _metadata = metadata;
            _expander = new Expander<ProjectPropertyInstance, ProjectItemInstance>(_lookup.ReadOnlyLookup, _lookup.ReadOnlyLookup, new StringMetadataTable(metadata));

            _bucketSequenceNumber = bucketSequenceNumber;
        }

 public void AddShouldThrowIfKeyIsNullOrWhiteSpace()
 {
     var lookup = new Lookup<object>();
     Should.Throw<ArgumentException>(() => lookup.Add(null, new object()));
     Should.Throw<ArgumentException>(() => lookup.Add(string.Empty, new object()));
     Should.Throw<ArgumentException>(() => lookup.Add(" ", new object()));
 }

 private void HandleFrameResult(object result)
 {
     if (result is Frame)
     {
         var lookup = new Lookup(task_master, null, new[] {"value"}, ((Frame) result).Context);
         lookup.Notify(HandleFinalResult);
     }
 }

 public void TestConstructorNullTarget()
 {
     ProjectInstance project = CreateTestProject(true /* Returns enabled */);
     BuildRequestConfiguration config = new BuildRequestConfiguration(1, new BuildRequestData("foo", new Dictionary<string, string>(), "foo", new string[0], null), "2.0");
     BuildRequestEntry requestEntry = new BuildRequestEntry(CreateNewBuildRequest(1, new string[] { "foo" }), config);
     Lookup lookup = new Lookup(new ItemDictionary<ProjectItemInstance>(project.Items), new PropertyDictionary<ProjectPropertyInstance>(project.Properties), null);
     TargetEntry entry = new TargetEntry(requestEntry, this, null, lookup, null, _host, false);
 }

 /// <summary>
 /// Determines how many times the batchable object needs to be executed (each execution is termed a "batch"), and prepares
 /// buckets of items to pass to the object in each batch.
 /// </summary>
 /// <returns>ArrayList containing ItemBucket objects, each one representing an execution batch.</returns>
 internal static List<ItemBucket> PrepareBatchingBuckets
 (
     List<string> batchableObjectParameters,
     Lookup lookup,
     ElementLocation elementLocation
 )
 {
     return PrepareBatchingBuckets(batchableObjectParameters, lookup, null, elementLocation);
 }

 public void TestGenericGetEnumerator()
 {
     IEnumerable<IGrouping<string, int>> lookup = new Lookup<string, int>
     {
         {"one", 1},
         {"two", 2},
         {"one", -1}
     };
     AssertContents(lookup.GetEnumerator());
 }

        /// <summary>
        /// Builds the specified targets of an entry. The cancel event should only be set to true if we are planning
        /// on simulating execution time when a target is built
        /// </summary>
        public Task<BuildResult> BuildTargets(ProjectLoggingContext loggingContext, BuildRequestEntry entry, IRequestBuilderCallback callback, string[] targetNames, Lookup baseLookup, CancellationToken cancellationToken)
        {
            _requestEntry = entry;
            _projectLoggingContext = loggingContext;
            _requestCallBack = callback;
            _testDefinition = _testDataProvider[entry.Request.ConfigurationId];
            _cancellationToken = cancellationToken;
            BuildResult result = GenerateResults(targetNames);

            return Task<BuildResult>.FromResult(result);
        }

        protected override void RecieveItemInteraction(Entity actor, Entity item,
                                                       Lookup<ItemCapabilityType, ItemCapabilityVerb> verbs)
        {
            base.RecieveItemInteraction(actor, item, verbs);

            if (verbs[ItemCapabilityType.Tool].Contains(ItemCapabilityVerb.Wrench))
            {
            }
            else
                PlaceItem(actor, item);
        }

 public void TestContains()
 {
     Lookup<string, int> lookup = new Lookup<string, int>
     {
         {"one", 1},
         {"two", 2},
         {"one", -1}
     };
     Assert.IsTrue(lookup.Contains("one"));
     Assert.IsTrue(lookup.Contains("two"));
     Assert.IsFalse(lookup.Contains("three"));
 }

        /// <summary>
        /// This is the Evaluate Method
        /// </summary>
        /// <param name="s"></param>
        /// <param name="varEvaluator"></param>
        /// <returns></returns>
        public static int Evaluate(String s, Lookup varEvaluator)
        {
            Stack<string> operatorStack = new Stack<string>();

            Stack<double> numberStack = new Stack<double>();
            try{
            //This helps to split strings to the proper operator.
            string[] substrings = Regex.Split(s, "(\\()|(\\))|(-)|(\\+)|(\\*)|(/)", RegexOptions.IgnorePatternWhitespace);

            //run through each string and do things to it.
            //Lets populate the stacks here.
            foreach(String t in substrings)
            {
                if (isNum(t))
                {
                    double newNum = Double.Parse(t);
                    string newOp = operatorStack.Peek();
                    if (newOp.Equals("*") || newOp.Equals("/"))
                    {
                        numberStack.Pop();
                        operatorStack.Pop();

                    }
                }
                else if (isVar(t))
                {
                    varEvaluator(t);
                }
                else if (isOp(t))
                {
                    if (operatorStack.Peek().Equals("+") || operatorStack.Peek().Equals("-"))
                    {
                        double x = numberStack.Pop();
                        double y = numberStack.Pop();
                        string poppedOp = operatorStack.Pop();
                        if(poppedOp.Equals("+"))
                        {
                            x = x + y;
                        } else
                        {
                            x = x - y;
                        }

                    }
                }
            }

            }catch(ArgumentException){

            }
            return 0;
        }

            public override void Export(Lookup settings)
            {
                settings.Add("Enabled", DebugEnabler.Settings.mEnabled);

                settings.Add("HotKeyCount", DebugEnabler.Settings.mInteractions.Count);

                int i = 0;
                foreach (Type type in DebugEnabler.Settings.mInteractions.Keys)
                {
                    settings.Add("HotKey" + i, type);
                    i++;
                }
            }

        public override void ReportLookupError(Lookup lookup, Type fail_type)
        {
            Dirty = true;
            if (fail_type == null) {
                Console.Error.WriteLine("Undefined name “{0}”. Lookup was as follows:", lookup.Name);
            } else {
                Console.Error.WriteLine("Non-frame type {1} while resolving name “{0}”. Lookup was as follows:",
                    lookup.Name, fail_type);
            }
            var col_width = Math.Max((int) Math.Log(lookup.FrameCount, 10) + 1, 3);
            for (var name_it = 0; name_it < lookup.NameCount; name_it++) {
                col_width = Math.Max(col_width, lookup.GetName(name_it).Length);
            }
            for (var name_it = 0; name_it < lookup.NameCount; name_it++) {
                Console.Error.Write("│ {0}", lookup.GetName(name_it).PadRight(col_width, ' '));
            }
            Console.Error.WriteLine("│");
            for (var name_it = 0; name_it < lookup.NameCount; name_it++) {
                Console.Error.Write(name_it == 0 ? "├" : "┼");
                for (var s = 0; s <= col_width; s++) {
                    Console.Error.Write("─");
                }
            }
            Console.Error.WriteLine("┤");

            var seen = new Dictionary<SourceReference, bool>();
            var known_frames = new Dictionary<Frame, string>();
            var frame_list = new List<Frame>();
            var null_text = "│ ".PadRight(col_width + 2, ' ');
            for (var frame_it = 0; frame_it < lookup.FrameCount; frame_it++) {
                for (var name_it = 0; name_it < lookup.NameCount; name_it++) {
                    var frame = lookup[name_it, frame_it];
                    if (frame == null) {
                        Console.Error.Write(null_text);
                        continue;
                    }
                    if (!known_frames.ContainsKey(frame)) {
                        frame_list.Add(frame);
                        known_frames[frame] = frame_list.Count.ToString().PadRight(col_width, ' ');
                    }
                    Console.Error.Write("│ {0}", known_frames[frame]);
                }
                Console.Error.WriteLine("│");
            }
            for (var it = 0; it < frame_list.Count; it++) {
                Console.Error.WriteLine("Frame {0} defined:", it + 1);
                frame_list[it].SourceReference.Write(Console.Error, "  ", seen);
            }
            Console.Error.WriteLine("Lookup happened here:");
            lookup.SourceReference.Write(Console.Error, "  ", seen);
        }

        public BaseViewModel()
        {
            List<KeyValuePair<string, string>> _properties = new List<KeyValuePair<string, string>>();
            foreach (var property in GetType().GetProperties())
            {
                foreach (var d in (DependsUponAttribute[])property.GetCustomAttributes(typeof(DependsUponAttribute), true))
                {
                    _properties.Add(new KeyValuePair<string, string>(d.DependancyName, property.Name));
                }
            }

            DependentProperties = (Lookup<string, string>)_properties.ToLookup(p => p.Key, p => p.Value);

        }