feat: withJoin 增加 Len 和 ToError

ace-zhaoy · ace-zhaoy · commit 648367e8fe7c · 2024-11-17T20:24:07.000+08:00
diff --git a/join.go b/join.go
@@ -37,6 +37,8 @@ type ErrorJoin interface {
 	error
 	Append(error)
 	Unwrap() []error
+	Len() int
+	ToError() error
 }
 
 type withJoin struct {
@@ -95,3 +97,14 @@ func (w *withJoin) Format(s fmt.State, verb rune) {
 		}
 	}
 }
+
+func (w *withJoin) Len() int {
+	return len(w.errs)
+}
+
+func (w *withJoin) ToError() error {
+	if len(w.errs) == 0 {
+		return nil
+	}
+	return w
+}

Original file line number	Diff line number	Diff line change
`@@ -37,6 +37,8 @@ type ErrorJoin interface {`
`37`	`37`	`error`
`38`	`38`	`Append(error)`
`39`	`39`	`Unwrap() []error`
	`40`	`+ Len() int`
	`41`	`+ ToError() error`
`40`	`42`	`}`
`41`	`43`
`42`	`44`	`type withJoin struct {`
`@@ -95,3 +97,14 @@ func (w *withJoin) Format(s fmt.State, verb rune) {`
`95`	`97`	`}`
`96`	`98`	`}`
`97`	`99`	`}`
	`100`	`+`
	`101`	`+func (w *withJoin) Len() int {`
	`102`	`+ return len(w.errs)`
	`103`	`+}`
	`104`	`+`
	`105`	`+func (w *withJoin) ToError() error {`
	`106`	`+ if len(w.errs) == 0 {`
	`107`	`+ return nil`
	`108`	`+ }`
	`109`	`+ return w`
	`110`	`+}`