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skip not match transformer #217

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skip not match transformer #217

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a85b8c7
add skip error
kooksee Jul 11, 2022
999fbf9
fix skip error
kooksee Jul 11, 2022
2ee2ab6
fix skip error
kooksee Jul 11, 2022
6e7762f
Merge branch 'master' into master
kooksee Oct 8, 2022
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9 changes: 8 additions & 1 deletion merge.go
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Expand Up @@ -9,10 +9,14 @@
package mergo

import (
"errors"
"fmt"
"reflect"
)

// ErrSkip Allow users to judge by the type of DST and SRC, and skip the check
var ErrSkip = errors.New("mergo: skip custom transformer")

func hasMergeableFields(dst reflect.Value) (exported bool) {
for i, n := 0, dst.NumField(); i < n; i++ {
field := dst.Type().Field(i)
Expand Down Expand Up @@ -82,7 +86,10 @@ func deepMerge(dst, src reflect.Value, visited map[uintptr]*visit, depth int, co
if config.Transformers != nil && !isReflectNil(dst) && dst.IsValid() {
if fn := config.Transformers.Transformer(dst.Type()); fn != nil {
err = fn(dst, src)
return
// Allow users to judge by the type of DST and SRC, and skip the check
if err != ErrSkip {
return
}
}
}

Expand Down