private IVariable CreateTemporaryVariable(IType type, DomRegion region) {
			string name = _namer.GetVariableName(null, _usedVariableNames);
			IVariable variable = new SimpleVariable(type, "temporary", region);
			_variables[variable] = new VariableData(name, null, false);
			_usedVariableNames.Add(name);
			return variable;
		}
		private static JsExpression ConstructConstructorInfo(IMethod constructor, ICompilation compilation, IMetadataImporter metadataImporter, INamer namer, IRuntimeLibrary runtimeLibrary, IErrorReporter errorReporter, Func<IType, JsExpression> instantiateType, bool includeDeclaringType) {
			var properties = GetCommonMemberInfoProperties(constructor, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType);

			var sem = metadataImporter.GetConstructorSemantics(constructor);
			if (sem.Type == ConstructorScriptSemantics.ImplType.NotUsableFromScript) {
				errorReporter.Message(Messages._7200, constructor.FullName);
				return JsExpression.Null;
			}
			properties.Add(new JsObjectLiteralProperty("type", JsExpression.Number((int)MemberTypes.Constructor)));
			properties.Add(new JsObjectLiteralProperty("params", JsExpression.ArrayLiteral(constructor.Parameters.Select(p => instantiateType(p.Type)))));
			if (sem.Type == ConstructorScriptSemantics.ImplType.NamedConstructor || sem.Type == ConstructorScriptSemantics.ImplType.StaticMethod)
				properties.Add(new JsObjectLiteralProperty("sname", JsExpression.String(sem.Name)));
			if (sem.Type == ConstructorScriptSemantics.ImplType.StaticMethod)
				properties.Add(new JsObjectLiteralProperty("sm", JsExpression.True));
			if ((sem.Type == ConstructorScriptSemantics.ImplType.UnnamedConstructor || sem.Type == ConstructorScriptSemantics.ImplType.NamedConstructor || sem.Type == ConstructorScriptSemantics.ImplType.StaticMethod) && sem.ExpandParams)
				properties.Add(new JsObjectLiteralProperty("exp", JsExpression.True));
			if (sem.Type == ConstructorScriptSemantics.ImplType.Json || sem.Type == ConstructorScriptSemantics.ImplType.InlineCode) {
				var usedNames = new HashSet<string>();
				var parameters = new List<IVariable>();
				var variables = new Dictionary<IVariable, VariableData>();
				IList<ResolveResult> constructorParameters = null;
				IList<ResolveResult> initializerStatements = null;
				if (sem.Type == ConstructorScriptSemantics.ImplType.Json && constructor.DeclaringType.Kind == TypeKind.Anonymous) {
					initializerStatements = new List<ResolveResult>();
					foreach (var p in constructor.DeclaringType.GetProperties()) {
						string paramName = MakeCamelCase(p.Name);
						string name = namer.GetVariableName(paramName, usedNames);
						usedNames.Add(name);
						var variable = new SimpleVariable(p.ReturnType, paramName, DomRegion.Empty);
						parameters.Add(variable);
						variables.Add(variable, new VariableData(name, null, false));
						initializerStatements.Add(new OperatorResolveResult(p.ReturnType, ExpressionType.Assign, new MemberResolveResult(new InitializedObjectResolveResult(constructor.DeclaringType), p), new LocalResolveResult(variable)));
					}
				}
				else {
					constructorParameters = new List<ResolveResult>();
					foreach (var p in constructor.Parameters) {
						string name = namer.GetVariableName(p.Name, usedNames);
						usedNames.Add(name);
						var variable = new SimpleVariable(p.Type, p.Name, DomRegion.Empty);
						parameters.Add(variable);
						variables.Add(variable, new VariableData(name, null, false));
						constructorParameters.Add(new LocalResolveResult(variable));
					}
				}
				var compileResult = CompileConstructorInvocation(constructor, initializerStatements, constructor.DeclaringTypeDefinition, constructor, constructorParameters, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, variables, usedNames);
				var definition = JsExpression.FunctionDefinition(parameters.Select(p => variables[p].Name), JsStatement.Block(compileResult.AdditionalStatements.Concat(new[] { JsStatement.Return(compileResult.Expression) })));
				properties.Add(new JsObjectLiteralProperty("def", definition));
			}
			return JsExpression.ObjectLiteral(properties);
		}
		private static JsExpression ConstructMemberInfo(IMember m, ICompilation compilation, IMetadataImporter metadataImporter, INamer namer, IRuntimeLibrary runtimeLibrary, IErrorReporter errorReporter, Func<IType, JsExpression> instantiateType, bool includeDeclaringType, MethodScriptSemantics semanticsIfAccessor) {
			if (m is IMethod && ((IMethod)m).IsConstructor)
				return ConstructConstructorInfo((IMethod)m, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType);

			var properties = GetCommonMemberInfoProperties(m, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType);
			if (m.IsStatic)
				properties.Add(new JsObjectLiteralProperty("isStatic", JsExpression.True));

			if (m is IMethod) {
				var method = (IMethod)m;
				var sem = semanticsIfAccessor ?? metadataImporter.GetMethodSemantics(method);
				if (sem.Type != MethodScriptSemantics.ImplType.NormalMethod && sem.Type != MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument && sem.Type != MethodScriptSemantics.ImplType.InlineCode) {
					errorReporter.Message(Messages._7201, m.FullName, "method");
					return JsExpression.Null;
				}
				if ((sem.Type == MethodScriptSemantics.ImplType.NormalMethod || sem.Type == MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument) && sem.ExpandParams)
					properties.Add(new JsObjectLiteralProperty("exp", JsExpression.True));

				properties.Add(new JsObjectLiteralProperty("type", JsExpression.Number((int)MemberTypes.Method)));
				if (sem.Type == MethodScriptSemantics.ImplType.InlineCode) {
					var usedNames = new HashSet<string>();
					var parameters = new List<IVariable>();
					var variables = new Dictionary<IVariable, VariableData>();
					var arguments = new List<ResolveResult>();
					foreach (var p in method.Parameters) {
						string name = namer.GetVariableName(p.Name, usedNames);
						usedNames.Add(name);
						var variable = new SimpleVariable(p.Type, p.Name, DomRegion.Empty);
						parameters.Add(variable);
						variables.Add(variable, new VariableData(name, null, false));
						arguments.Add(new LocalResolveResult(variable));
					}
					var tokens = InlineCodeMethodCompiler.Tokenize(method, sem.LiteralCode, _ => {});

					var compileResult = Compile(CreateMethodInvocationResolveResult(method, method.IsStatic ? (ResolveResult)new TypeResolveResult(method.DeclaringType) : new ThisResolveResult(method.DeclaringType), arguments), method.DeclaringTypeDefinition, method, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, true, variables, usedNames);
					var definition = JsExpression.FunctionDefinition(parameters.Select(p => variables[p].Name), JsStatement.Block(compileResult.AdditionalStatements.Concat(new[] { JsStatement.Return(compileResult.Expression) })));

					if (tokens.Any(t => t.Type == InlineCodeToken.TokenType.TypeParameter && t.OwnerType == SymbolKind.Method)) {
						definition = JsExpression.FunctionDefinition(method.TypeParameters.Select(namer.GetTypeParameterName), JsStatement.Return(definition));
						properties.Add(new JsObjectLiteralProperty("tpcount", JsExpression.Number(method.TypeParameters.Count)));
					}
					properties.Add(new JsObjectLiteralProperty("def", definition));
				}
				else {
					if (IsJsGeneric(method, metadataImporter)) {
						properties.Add(new JsObjectLiteralProperty("tpcount", JsExpression.Number(method.TypeParameters.Count)));
					}
					if (sem.Type == MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument) {
						properties.Add(new JsObjectLiteralProperty("sm", JsExpression.True));
					}
					properties.Add(new JsObjectLiteralProperty("sname", JsExpression.String(sem.Name)));
				}
				properties.Add(new JsObjectLiteralProperty("returnType", instantiateType(method.ReturnType)));
				properties.Add(new JsObjectLiteralProperty("params", JsExpression.ArrayLiteral(method.Parameters.Select(p => instantiateType(p.Type)))));
			}
			else if (m is IField) {
				var field = (IField)m;
				var sem = metadataImporter.GetFieldSemantics(field);
				if (sem.Type != FieldScriptSemantics.ImplType.Field) {
					errorReporter.Message(Messages._7201, m.FullName, "field");
					return JsExpression.Null;
				}
				properties.Add(new JsObjectLiteralProperty("type", JsExpression.Number((int)MemberTypes.Field)));
				properties.Add(new JsObjectLiteralProperty("returnType", instantiateType(field.ReturnType)));
				properties.Add(new JsObjectLiteralProperty("sname", JsExpression.String(sem.Name)));
			}
			else if (m is IProperty) {
				var prop = (IProperty)m;
				var sem = metadataImporter.GetPropertySemantics(prop);
				properties.Add(new JsObjectLiteralProperty("type", JsExpression.Number((int)MemberTypes.Property)));
				properties.Add(new JsObjectLiteralProperty("returnType", instantiateType(prop.ReturnType)));
				if (prop.Parameters.Count > 0)
					properties.Add(new JsObjectLiteralProperty("params", JsExpression.ArrayLiteral(prop.Parameters.Select(p => instantiateType(p.Type)))));

				switch (sem.Type) {
					case PropertyScriptSemantics.ImplType.GetAndSetMethods:
						if (sem.GetMethod != null && sem.GetMethod.Type != MethodScriptSemantics.ImplType.NormalMethod && sem.GetMethod.Type != MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument && sem.GetMethod.Type != MethodScriptSemantics.ImplType.InlineCode) {
							errorReporter.Message(Messages._7202, m.FullName, "property", "getter");
							return JsExpression.Null;
						}
						if (sem.SetMethod != null && sem.SetMethod.Type != MethodScriptSemantics.ImplType.NormalMethod && sem.SetMethod.Type != MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument && sem.SetMethod.Type != MethodScriptSemantics.ImplType.InlineCode) {
							errorReporter.Message(Messages._7202, m.FullName, "property", "setter");
							return JsExpression.Null;
						}
						if (sem.GetMethod != null)
							properties.Add(new JsObjectLiteralProperty("getter", ConstructMemberInfo(prop.Getter, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType, sem.GetMethod)));
						if (sem.SetMethod != null)
							properties.Add(new JsObjectLiteralProperty("setter", ConstructMemberInfo(prop.Setter, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType, sem.SetMethod)));
						break;
					case PropertyScriptSemantics.ImplType.Field:
						if (prop.CanGet)
							properties.Add(new JsObjectLiteralProperty("getter", ConstructFieldPropertyAccessor(prop.Getter, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, sem.FieldName, instantiateType, isGetter: true, includeDeclaringType: includeDeclaringType)));
						if (prop.CanSet)
							properties.Add(new JsObjectLiteralProperty("setter", ConstructFieldPropertyAccessor(prop.Setter, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, sem.FieldName, instantiateType, isGetter: false, includeDeclaringType: includeDeclaringType)));
						properties.Add(new JsObjectLiteralProperty("fname", JsExpression.String(sem.FieldName)));
						break;
					default:
						errorReporter.Message(Messages._7201, m.FullName, "property");
						return JsExpression.Null;
				}
			}
			else if (m is IEvent) {
				var evt = (IEvent)m;
				var sem = metadataImporter.GetEventSemantics(evt);
				if (sem.Type != EventScriptSemantics.ImplType.AddAndRemoveMethods) {
					errorReporter.Message(Messages._7201, m.FullName, "event");
					return JsExpression.Null;
				}
				if (sem.AddMethod.Type != MethodScriptSemantics.ImplType.NormalMethod && sem.AddMethod.Type != MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument && sem.AddMethod.Type != MethodScriptSemantics.ImplType.InlineCode) {
					errorReporter.Message(Messages._7202, m.FullName, "event", "add accessor");
					return JsExpression.Null;
				}
				if (sem.RemoveMethod.Type != MethodScriptSemantics.ImplType.NormalMethod && sem.RemoveMethod.Type != MethodScriptSemantics.ImplType.StaticMethodWithThisAsFirstArgument && sem.RemoveMethod.Type != MethodScriptSemantics.ImplType.InlineCode) {
					errorReporter.Message(Messages._7202, m.FullName, "event", "remove accessor");
					return JsExpression.Null;
				}

				properties.Add(new JsObjectLiteralProperty("type", JsExpression.Number((int)MemberTypes.Event)));
				properties.Add(new JsObjectLiteralProperty("adder", ConstructMemberInfo(evt.AddAccessor, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType, sem.AddMethod)));
				properties.Add(new JsObjectLiteralProperty("remover", ConstructMemberInfo(evt.RemoveAccessor, compilation, metadataImporter, namer, runtimeLibrary, errorReporter, instantiateType, includeDeclaringType, sem.RemoveMethod)));
			}
			else {
				throw new ArgumentException("Invalid member " + m);
			}

			return JsExpression.ObjectLiteral(properties);
		}
		private static ExpressionCompileResult Compile(ResolveResult rr, ITypeDefinition currentType, IMethod currentMethod, ICompilation compilation, IMetadataImporter metadataImporter, INamer namer, IRuntimeLibrary runtimeLibrary, IErrorReporter errorReporter, bool returnValueIsImportant, Dictionary<IVariable, VariableData> variables, ISet<string> usedVariableNames) {
			variables = variables ?? new Dictionary<IVariable, VariableData>();
			usedVariableNames = usedVariableNames ?? new HashSet<string>();
			return new ExpressionCompiler(compilation,
			                              metadataImporter,
			                              namer,
			                              runtimeLibrary,
			                              errorReporter,
			                              variables,
			                              new Dictionary<LambdaResolveResult, NestedFunctionData>(),
			                              t => {
			                                  string name = namer.GetVariableName(null, usedVariableNames);
			                                  IVariable variable = new SimpleVariable(t, "temporary", DomRegion.Empty);
			                                  variables[variable] = new VariableData(name, null, false);
			                                  usedVariableNames.Add(name);
			                                  return variable;
			                              },
			                              _ => { throw new Exception("Cannot compile nested functions here"); },
			                              null,
			                              new NestedFunctionContext(EmptyList<IVariable>.Instance),
			                              null,
			                              currentMethod,
			                              currentType
			                             ).Compile(rr, returnValueIsImportant);
		}