From df4dd8d0112eed11972649ff28b8e07f17125507 Mon Sep 17 00:00:00 2001
From: Jiabin Geng <gengjiabin@gmail.com>
Date: Mon, 10 Aug 2020 11:44:10 -0600
Subject: [PATCH] add a clear method (#15)

* made some change to make it works with core

* add a clear method

Co-authored-by: jgeng <jgeng@adobe.com>
---
 Sources/SwiftRulesEngine/RulesEngine.swift | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/Sources/SwiftRulesEngine/RulesEngine.swift b/Sources/SwiftRulesEngine/RulesEngine.swift
index e699259..e074337 100644
--- a/Sources/SwiftRulesEngine/RulesEngine.swift
+++ b/Sources/SwiftRulesEngine/RulesEngine.swift
@@ -12,7 +12,7 @@
 
 import Foundation
 
-public typealias RulesTracer = (Bool, Evaluable, Context, RulesFailure?) -> Void
+public typealias RulesTracer = (Bool, Rule, Context, RulesFailure?) -> Void
 
 public class RulesEngine<T: Rule> {
     let evaluator: Evaluating
@@ -33,7 +33,7 @@ public class RulesEngine<T: Rule> {
         return rules.filter { rule -> Bool in
             let result = rule.condition.evaluate(in: context)
             if let tracer = self.tracer {
-                tracer(result.value, rule.condition, context, result.error)
+                tracer(result.value, rule, context, result.error)
             }
             return result.value
         }
@@ -46,11 +46,16 @@ public class RulesEngine<T: Rule> {
         self.rules += rules
     }
 
+    /// clear the current rules set
+    public func clearRules() {
+        rules = [T]()
+    }
+
+    /// trace the result of each rule eveluation
+    /// - Parameter tracer: the rules tracer will be called after each rule eveluation
     public func trace(with tracer: @escaping RulesTracer) {
         self.tracer = tracer
     }
-
-    // TODO: Query of rules?
 }
 
 public struct Context {