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GODRIVER-3056 fix panic on type conversion of nil val in bson codec_cache #1478

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GODRIVER-3056 fix panic on type conversion of nil val in bson codec_cache #1478

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4 changes: 2 additions & 2 deletions bson/bsoncodec/codec_cache.go
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ func (c *typeEncoderCache) Load(rt reflect.Type) (ValueEncoder, bool) {
}

func (c *typeEncoderCache) LoadOrStore(rt reflect.Type, enc ValueEncoder) ValueEncoder {
if v, loaded := c.cache.LoadOrStore(rt, enc); loaded {
if v, loaded := c.cache.LoadOrStore(rt, enc); loaded && v != nil {
enc = v.(ValueEncoder)
}
return enc
Expand Down Expand Up @@ -74,7 +74,7 @@ func (c *typeDecoderCache) Load(rt reflect.Type) (ValueDecoder, bool) {
}

func (c *typeDecoderCache) LoadOrStore(rt reflect.Type, dec ValueDecoder) ValueDecoder {
if v, loaded := c.cache.LoadOrStore(rt, dec); loaded {
if v, loaded := c.cache.LoadOrStore(rt, dec); loaded && v != nil {
dec = v.(ValueDecoder)
}
return dec
Expand Down