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Encoding/Decoding time.Duration to/from int64 #373

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7 changes: 6 additions & 1 deletion bson/decode.go
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Original file line number Diff line number Diff line change
Expand Up @@ -538,7 +538,12 @@ func (d *decoder) readElemTo(out reflect.Value, kind byte) (good bool) {
case 0x11: // Mongo-specific timestamp
in = MongoTimestamp(d.readInt64())
case 0x12: // Int64
in = d.readInt64()
switch out.Type() {
case typeTimeDuration:
in = time.Duration(time.Duration(d.readInt64()) * time.Millisecond)
default:
in = d.readInt64()
}
case 0x13: // Decimal128
in = Decimal128{
l: uint64(d.readInt64()),
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5 changes: 5 additions & 0 deletions bson/encode.go
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Expand Up @@ -54,6 +54,7 @@ var (
typeTime = reflect.TypeOf(time.Time{})
typeString = reflect.TypeOf("")
typeJSONNumber = reflect.TypeOf(json.Number(""))
typeTimeDuration = reflect.TypeOf(time.Duration(0))
)

const itoaCacheSize = 32
Expand Down Expand Up @@ -325,7 +326,11 @@ func (e *encoder) addElem(name string, v reflect.Value, minSize bool) {
} else {
e.addElemName(0xFF, name)
}
case typeTimeDuration:
// Stored as int64
e.addElemName(0x12, name)

e.addInt64(int64(v.Int()/1e6))
default:
i := v.Int()
if (minSize || v.Type().Kind() != reflect.Int64) && i >= math.MinInt32 && i <= math.MaxInt32 {
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