encoding/gob: doc of encoding of single values is inconsistent
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Jared Zhou
Dec 8, 2021, 11:15:27 PM12/8/21
to golang-nuts
The doc says.
If a value is passed to Encode and the type is not a struct (or pointer to struct,
etc.), for simplicity of processing it is represented as a struct of one field.
The only visible effect of this is to encode a zero byte after the value, just as
after the last field of an encoded struct.
But here says, https://github.com/golang/go/blob/d6c4583ad4923533ddc9f5792ed3b66f3b9f9feb/src/encoding/gob/doc.go#L402
A single non-struct value at top level is transmitted like a field with
delta tag 0. For instance, a signed integer with value 3 presented as
the argument to Encode will emit:
03 04 00 06
Which represents:
03 // this value is 3 bytes long
04 // the type number, 2, represents an integer
00 // tag delta 0
06 // value 3
A single non-struct value at top level is transmitted like a field with
delta tag 0. For instance, a signed integer with value 3 presented as
the argument to Encode will emit:
03 04 00 06
Which represents:
03 // this value is 3 bytes long
04 // the type number, 2, represents an integer
00 // tag delta 0
06 // value 3
It seems the later one is correct? Related issue encoding/gob: encoding of single values doesn't agree with documentation
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