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

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Huangzj
2020-12-14 15:15:58 +08:00
parent 23d7d6e226
commit fa31b23cca
51 changed files with 4619 additions and 1662 deletions
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vendor/github.com/ahmetb/go-linq/select.go
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+27 -65
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@@ -1,16 +1,17 @@
package linq
// Select projects each element of a collection into a new form. Returns a query
// with the result of invoking the transform function on each element of
// original source.
// Select projects each element of a collection into a new form.
// Returns a query with the result of invoking the transform function
// on each element of original source.
//
// This projection method requires the transform function, selector, to produce
// one value for each value in the source collection. If selector returns a
// value that is itself a collection, it is up to the consumer to traverse the
// subcollections manually. In such a situation, it might be better for your
// query to return a single coalesced collection of values. To achieve this, use
// the SelectMany method instead of Select. Although SelectMany works similarly
// to Select, it differs in that the transform function returns a collection
// This projection method requires the transform function, selector,
// to produce one value for each value in the source collection.
// If selector returns a value that is itself a collection,
// it is up to the consumer to traverse the subcollections manually.
// In such a situation, it might be better for your query to return a single
// coalesced collection of values. To achieve this, use the SelectMany method
// instead of Select. Although SelectMany works similarly to Select,
// it differs in that the transform function returns a collection
// that is then expanded by SelectMany before it is returned.
func (q Query) Select(selector func(interface{}) interface{}) Query {
return Query{
@@ -30,44 +31,24 @@ func (q Query) Select(selector func(interface{}) interface{}) Query {
}
}
// SelectT is the typed version of Select.
// - selectorFn is of type "func(TSource)TResult"
// NOTE: Select has better performance than SelectT.
func (q Query) SelectT(selectorFn interface{}) Query {
selectGenericFunc, err := newGenericFunc(
"SelectT", "selectorFn", selectorFn,
simpleParamValidator(newElemTypeSlice(new(genericType)), newElemTypeSlice(new(genericType))),
)
if err != nil {
panic(err)
}
selectorFunc := func(item interface{}) interface{} {
return selectGenericFunc.Call(item)
}
return q.Select(selectorFunc)
}
// SelectIndexed projects each element of a collection into a new form by
// incorporating the element's index. Returns a query with the result of
// invoking the transform function on each element of original source.
// SelectIndexed projects each element of a collection into a new form
// by incorporating the element's index. Returns a query with the result
// of invoking the transform function on each element of original source.
//
// The first argument to selector represents the zero-based index of that
// element in the source collection. This can be useful if the elements are in a
// known order and you want to do something with an element at a particular
// index, for example. It can also be useful if you want to retrieve the index
// of one or more elements. The second argument to selector represents the
// element to process.
// The first argument to selector represents the zero-based index of that element
// in the source collection. This can be useful if the elements are in a known order
// and you want to do something with an element at a particular index,
// for example. It can also be useful if you want to retrieve the index of one
// or more elements. The second argument to selector represents the element to process.
//
// This projection method requires the transform function, selector, to produce
// one value for each value in the source collection. If selector returns a
// value that is itself a collection, it is up to the consumer to traverse the
// subcollections manually. In such a situation, it might be better for your
// query to return a single coalesced collection of values. To achieve this, use
// the SelectMany method instead of Select. Although SelectMany works similarly
// to Select, it differs in that the transform function returns a collection
// This projection method requires the transform function, selector,
// to produce one value for each value in the source collection.
// If selector returns a value that is itself a collection,
// it is up to the consumer to traverse the subcollections manually.
// In such a situation, it might be better for your query to return a single
// coalesced collection of values. To achieve this, use the SelectMany method
// instead of Select. Although SelectMany works similarly to Select,
// it differs in that the transform function returns a collection
// that is then expanded by SelectMany before it is returned.
func (q Query) SelectIndexed(selector func(int, interface{}) interface{}) Query {
return Query{
@@ -88,22 +69,3 @@ func (q Query) SelectIndexed(selector func(int, interface{}) interface{}) Query
},
}
}
// SelectIndexedT is the typed version of SelectIndexed.
// - selectorFn is of type "func(int,TSource)TResult"
// NOTE: SelectIndexed has better performance than SelectIndexedT.
func (q Query) SelectIndexedT(selectorFn interface{}) Query {
selectGenericFunc, err := newGenericFunc(
"SelectIndexedT", "selectorFn", selectorFn,
simpleParamValidator(newElemTypeSlice(new(int), new(genericType)), newElemTypeSlice(new(genericType))),
)
if err != nil {
panic(err)
}
selectorFunc := func(index int, item interface{}) interface{} {
return selectGenericFunc.Call(index, item)
}
return q.SelectIndexed(selectorFunc)
}