feat(Go-Tool)：2020/12/14:添加validator.v8源码解析和使用示例

vendor/github.com/ahmetb/go-linq/distinct.go

@@ -1,7 +1,7 @@
 package linq
 
-// Distinct method returns distinct elements from a collection. The result is an
-// unordered collection that contains no duplicate values.
+// Distinct method returns distinct elements from a collection.
+// The result is an unordered collection that contains no duplicate values.
 func (q Query) Distinct() Query {
 	return Query{
 		Iterate: func() Iterator {
@@ -22,11 +22,11 @@ func (q Query) Distinct() Query {
 	}
 }
 
-// Distinct method returns distinct elements from a collection. The result is an
-// ordered collection that contains no duplicate values.
+// Distinct method returns distinct elements from a collection.
+// The result is an ordered collection that contains no duplicate values.
 //
 // NOTE: Distinct method on OrderedQuery type has better performance than
-// Distinct method on Query type.
+// Distinct method on Query type
 func (oq OrderedQuery) Distinct() OrderedQuery {
 	return OrderedQuery{
 		orders: oq.orders,
@@ -73,26 +73,3 @@ func (q Query) DistinctBy(selector func(interface{}) interface{}) Query {
 		},
 	}
 }
-
-// DistinctByT is the typed version of DistinctBy.
-//
-//   - selectorFn is of type "func(TSource) TSource".
-//
-// NOTE: DistinctBy has better performance than DistinctByT.
-func (q Query) DistinctByT(selectorFn interface{}) Query {
-	selectorFunc, ok := selectorFn.(func(interface{}) interface{})
-	if !ok {
-		selectorGenericFunc, err := newGenericFunc(
-			"DistinctByT", "selectorFn", selectorFn,
-			simpleParamValidator(newElemTypeSlice(new(genericType)), newElemTypeSlice(new(genericType))),
-		)
-		if err != nil {
-			panic(err)
-		}
-
-		selectorFunc = func(item interface{}) interface{} {
-			return selectorGenericFunc.Call(item)
-		}
-	}
-	return q.DistinctBy(selectorFunc)
-}