huangzj/Go-http_framework
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(Go-Tool)：

Browse Source 
2020/12/16: 添加YAML和结构体转换工具
This commit is contained in:
Huangzj
2020-12-16 14:23:38 +08:00
parent 61966551cd
commit dc80b557e3
32 changed files with 1700 additions and 324 deletions
Download Patch File Download Diff File Expand all files Collapse all files
vendor/github.com/ahmetb/go-linq/groupjoin.go
Generated Vendored
+69 -12
View File
@@ -1,25 +1,27 @@
package linq
import "reflect"
// GroupJoin correlates the elements of two collections based on key equality,
// and groups the results.
//
// This method produces hierarchical results, which means that elements from outer query
// are paired with collections of matching elements from inner. GroupJoin enables you
// to base your results on a whole set of matches for each element of outer query.
// This method produces hierarchical results, which means that elements from
// outer query are paired with collections of matching elements from inner.
// GroupJoin enables you to base your results on a whole set of matches for each
// element of outer query.
//
// The resultSelector function is called only one time for each outer element
// together with a collection of all the inner elements that match the outer element.
// This differs from the Join method, in which the result selector function is invoked
// on pairs that contain one element from outer and one element from inner.
// together with a collection of all the inner elements that match the outer
// element. This differs from the Join method, in which the result selector
// function is invoked on pairs that contain one element from outer and one
// element from inner.
//
// GroupJoin preserves the order of the elements of outer, and for each element of outer,
// the order of the matching elements from inner.
func (q Query) GroupJoin(
inner Query,
// GroupJoin preserves the order of the elements of outer, and for each element
// of outer, the order of the matching elements from inner.
func (q Query) GroupJoin(inner Query,
outerKeySelector func(interface{}) interface{},
innerKeySelector func(interface{}) interface{},
resultSelector func(outer interface{}, inners []interface{}) interface{},
) Query {
resultSelector func(outer interface{}, inners []interface{}) interface{}) Query {
return Query{
Iterate: func() Iterator {
@@ -48,3 +50,58 @@ func (q Query) GroupJoin(
},
}
}
// GroupJoinT is the typed version of GroupJoin.
//
// - inner: The query to join to the outer query.
// - outerKeySelectorFn is of type "func(TOuter) TKey"
// - innerKeySelectorFn is of type "func(TInner) TKey"
// - resultSelectorFn: is of type "func(TOuter, inners []TInner) TResult"
//
// NOTE: GroupJoin has better performance than GroupJoinT.
func (q Query) GroupJoinT(inner Query,
outerKeySelectorFn interface{},
innerKeySelectorFn interface{},
resultSelectorFn interface{}) Query {
outerKeySelectorGenericFunc, err := newGenericFunc(
"GroupJoinT", "outerKeySelectorFn", outerKeySelectorFn,
simpleParamValidator(newElemTypeSlice(new(genericType)), newElemTypeSlice(new(genericType))),
)
if err != nil {
panic(err)
}
outerKeySelectorFunc := func(item interface{}) interface{} {
return outerKeySelectorGenericFunc.Call(item)
}
innerKeySelectorFuncGenericFunc, err := newGenericFunc(
"GroupJoinT", "innerKeySelectorFn", innerKeySelectorFn,
simpleParamValidator(newElemTypeSlice(new(genericType)), newElemTypeSlice(new(genericType))),
)
if err != nil {
panic(err)
}
innerKeySelectorFunc := func(item interface{}) interface{} {
return innerKeySelectorFuncGenericFunc.Call(item)
}
resultSelectorGenericFunc, err := newGenericFunc(
"GroupJoinT", "resultSelectorFn", resultSelectorFn,
simpleParamValidator(newElemTypeSlice(new(genericType), new(genericType)), newElemTypeSlice(new(genericType))),
)
if err != nil {
panic(err)
}
resultSelectorFunc := func(outer interface{}, inners []interface{}) interface{} {
innerSliceType := reflect.MakeSlice(resultSelectorGenericFunc.Cache.TypesIn[1], 0, 0)
innersSlicePointer := reflect.New(innerSliceType.Type())
From(inners).ToSlice(innersSlicePointer.Interface())
innersTyped := reflect.Indirect(innersSlicePointer).Interface()
return resultSelectorGenericFunc.Call(outer, innersTyped)
}
return q.GroupJoin(inner, outerKeySelectorFunc, innerKeySelectorFunc, resultSelectorFunc)
}