C# TypeSystemAstBuilder.ConvertConstantValue方法代码示例

		/// <summary> Get the value of the node and update the UI text fields. </summary>
		/// <remarks> This should be only called once so the Value is not cached. </remarks>
		void GetValueAndUpdateUI()
		{
			try {
				Stopwatch watch = new Stopwatch();
				watch.Start();
				
				// Do not keep permanent reference
				Value val = this.getValue();
				
				if (val == null) {
					Value = string.Empty;
					Type  = string.Empty;
					GetChildren = null;
					VisualizerCommands = null;
					return;
				}
				
				// Note that the child collections are lazy-evaluated
				if (val.IsNull) {
					this.GetChildren = null;
				} else if (val.Type.IsPrimitiveType() || val.Type.IsKnownType(KnownTypeCode.String)) { // Must be before IsClass
					this.GetChildren = null;
				} else if (val.Type.Kind == TypeKind.Array) { // Must be before IsClass
					var dimBase = val.ArrayBaseIndicies;		// Eval now
					var dimSize = val.ArrayDimensions;		// Eval now
					if (val.ArrayLength > 0) {
						this.GetChildren = () => GetArrayChildren(dimBase, dimSize);
					}
				} else if (val.Type.Kind == TypeKind.Class || val.Type.Kind == TypeKind.Struct) {
					if (val.Type.IsKnownType(typeof(List<>))) {
						if ((int)val.GetFieldValue("_size").PrimitiveValue > 0)
							this.GetChildren = () => GetIListChildren(this.GetValue);
					} else {
						this.GetChildren = () => GetObjectChildren(val.Type);
					}
				} else if (val.Type.Kind == TypeKind.Pointer) {
					if (val.Dereference() != null) {
						this.GetChildren = () => new[] { new ValueNode(ClassBrowserIconService.LocalVariable, "*" + this.Name, () => GetValue().Dereference()) };
					}
				}
				
				// Do last since it may expire the object
				if (val.IsNull) {
					fullValue = "null";
				} else if (val.Type.IsInteger()) {
					var i = val.PrimitiveValue;
					if (DebuggingOptions.Instance.ShowIntegersAs == ShowIntegersAs.Decimal) {
						fullValue = i.ToString();
					} else {
						string hex = string.Format("0x{0:X4}", i);
						if (hex.Length > 6 ) hex = string.Format("0x{0:X8}", i);
						if (hex.Length > 10) hex = string.Format("0x{0:X16}", i);
						if (DebuggingOptions.Instance.ShowIntegersAs == ShowIntegersAs.Hexadecimal) {
							fullValue = hex;
						} else {
							fullValue = string.Format("{0} ({1})", i, hex);
						}
					}
				} else if (val.Type.Kind == TypeKind.Pointer) {
					fullValue = String.Format("0x{0:X}", val.PointerAddress);
				} else if (val.Type.IsKnownType(KnownTypeCode.String)) {
					fullValue = '"' + val.InvokeToString(WindowsDebugger.EvalThread).Replace("\n", "\\n").Replace("\t", "\\t").Replace("\r", "\\r").Replace("\0", "\\0").Replace("\b", "\\b").Replace("\a", "\\a").Replace("\f", "\\f").Replace("\v", "\\v").Replace("\"", "\\\"") + '"';
				} else if (val.Type.IsKnownType(KnownTypeCode.Char)) {
					fullValue = "'" + val.InvokeToString(WindowsDebugger.EvalThread).Replace("\n", "\\n").Replace("\t", "\\t").Replace("\r", "\\r").Replace("\0", "\\0").Replace("\b", "\\b").Replace("\a", "\\a").Replace("\f", "\\f").Replace("\v", "\\v").Replace("\"", "\\\"") + "'";
				} else if ((val.Type.Kind == TypeKind.Class || val.Type.Kind == TypeKind.Struct)) {
					fullValue = val.FormatByDebuggerDisplayAttribute(WindowsDebugger.EvalThread);
					if (fullValue == null)
						fullValue = val.InvokeToString(WindowsDebugger.EvalThread);
				} else if (val.Type.Kind == TypeKind.Enum) {
					var primitiveValue = val.PrimitiveValue;
					var builder = new TypeSystemAstBuilder();
					builder.AlwaysUseShortTypeNames = true;
					AstNode node = builder.ConvertConstantValue(val.Type, primitiveValue);
					fullValue = node + "=" + primitiveValue;
				} else {
					fullValue = val.AsString();
				}
				
				this.error = null;
				this.Value = (fullValue.Length > 256) ? fullValue.Substring(0, 256) + "..." : fullValue;
				this.Type = val.Type.Name;
				
				if (!val.IsNull) {
					this.VisualizerCommands = VisualizerDescriptors.GetAllDescriptors()
						.Where(descriptor => descriptor.IsVisualizerAvailable(val.Type))
						.Select(descriptor => descriptor.CreateVisualizerCommand(this.Name, this.GetValue))
						.ToList();
				}
				
				LoggingService.InfoFormatted("Evaluated node '{0}' in {1} ms", this.Name, watch.ElapsedMilliseconds);
				
			} catch (GetValueException e) {
				error = e;
				this.Value = e.Message;
				this.Type  = string.Empty;
				this.GetChildren = null;
				this.VisualizerCommands = null;
			} finally {
//.........这里部分代码省略.........

 string GetValue(ResolveResult value)
 {
     var astBuilder = new TypeSystemAstBuilder();
     Expression ast = astBuilder.ConvertConstantValue(value);
     return ast.ToString();
 }