Пример #1
0
        private void AnalyzeInvokeAttribute(RuleAnalysis analysis, Type contextType, Stack <MemberInfo> methodStack, CodeExpression targetExpression, RulePathQualifier targetQualifier, CodeExpressionCollection argumentExpressions, ParameterInfo[] parameters, List <CodeExpression> attributedExpressions)
        {
            // Go through all the methods and properties on the target context,
            // looking for all the ones that match the name on the attribute.
            MemberInfo[] members = contextType.GetMember(methodInvoked, MemberTypes.Method | MemberTypes.Property, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy);

            for (int m = 0; m < members.Length; ++m)
            {
                MemberInfo mi = members[m];
                if (!methodStack.Contains(mi)) // Prevent recursion
                {
                    methodStack.Push(mi);

                    object[] attrs = mi.GetCustomAttributes(typeof(RuleAttribute), true);
                    if (attrs != null && attrs.Length != 0)
                    {
                        RuleAttribute[] ruleAttrs = (RuleAttribute[])attrs;
                        for (int i = 0; i < ruleAttrs.Length; ++i)
                        {
                            RuleAttribute ruleAttr = ruleAttrs[i];

                            RuleReadWriteAttribute readWriteAttr = ruleAttr as RuleReadWriteAttribute;
                            if (readWriteAttr != null)
                            {
                                // Just analyze the read/write attribute normally.
                                readWriteAttr.Analyze(analysis, mi, targetExpression, targetQualifier, argumentExpressions, parameters, attributedExpressions);
                            }
                            else
                            {
                                RuleInvokeAttribute invokeAttr = (RuleInvokeAttribute)ruleAttr;
                                invokeAttr.AnalyzeInvokeAttribute(analysis, contextType, methodStack, targetExpression, targetQualifier, argumentExpressions, parameters, attributedExpressions);
                            }
                        }
                    }

                    methodStack.Pop();
                }
            }
        }
        private bool ValidateInvokeAttribute(RuleValidation validation, MemberInfo member, Type contextType, Stack <MemberInfo> methodStack)
        {
            string          message;
            ValidationError error;

            if (string.IsNullOrEmpty(methodInvoked))
            {
                // Invoked method or property name was null or empty.
                message = string.Format(CultureInfo.CurrentCulture, Messages.AttributeMethodNotFound, member.Name, this.GetType().Name, Messages.NullValue);
                error   = new ValidationError(message, ErrorNumbers.Warning_RuleAttributeNoMatch, true);
                error.UserData[RuleUserDataKeys.ErrorObject] = this;
                validation.AddError(error);
                return(false);
            }

            bool valid = true;

            // Go through all the methods and properties on the target context,
            // looking for all the ones that match the name on the attribute.
            MemberInfo[] members = contextType.GetMember(methodInvoked, MemberTypes.Method | MemberTypes.Property, BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy);

            if (members == null || members.Length == 0)
            {
                // Invoked method or property didn't exist.
                message = string.Format(CultureInfo.CurrentCulture, Messages.AttributeMethodNotFound, member.Name, this.GetType().Name, methodInvoked);
                error   = new ValidationError(message, ErrorNumbers.Warning_RuleAttributeNoMatch, true);
                error.UserData[RuleUserDataKeys.ErrorObject] = this;
                validation.AddError(error);
                valid = false;
            }
            else
            {
                for (int i = 0; i < members.Length; ++i)
                {
                    MemberInfo mi = members[i];
                    if (!methodStack.Contains(mi)) // Prevent recursion
                    {
                        methodStack.Push(mi);

                        object[] attrs = mi.GetCustomAttributes(typeof(RuleAttribute), true);
                        if (attrs != null && attrs.Length != 0)
                        {
                            foreach (RuleAttribute invokedRuleAttr in attrs)
                            {
                                if (invokedRuleAttr is RuleReadWriteAttribute readWriteAttr)
                                {
                                    // This read/write attribute may not specify a target of "Parameter", since
                                    // we can't map from the invoker's parameters to the invokee's parameters.
                                    if (readWriteAttr.Target == RuleAttributeTarget.Parameter)
                                    {
                                        message = string.Format(CultureInfo.CurrentCulture, Messages.InvokeAttrRefersToParameterAttribute, mi.Name);
                                        error   = new ValidationError(message, ErrorNumbers.Error_InvokeAttrRefersToParameterAttribute, true);
                                        error.UserData[RuleUserDataKeys.ErrorObject] = this;
                                        validation.AddError(error);
                                        valid = false;
                                    }
                                    else
                                    {
                                        // Validate the read/write attribute normally.
                                        readWriteAttr.Validate(validation, mi, contextType, null);
                                    }
                                }
                                else
                                {
                                    RuleInvokeAttribute invokeAttr = (RuleInvokeAttribute)invokedRuleAttr;
                                    invokeAttr.ValidateInvokeAttribute(validation, mi, contextType, methodStack);
                                }
                            }
                        }

                        methodStack.Pop();
                    }
                }
            }

            return(valid);
        }