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zeekayandHanzo Dev
de989f6758
Disproof artifact. This declares MarshalZAP/UnmarshalZAP on ID, ShortID and NodeID as raw fixed-width bytes, the width read from the value's own length so it cannot drift from the declaration. It does not close a single opgen gap, and it is not meant to be merged. An id is an INLINE field of the message that carries it, not a message of its own: a parent codec writes it with SetBytesFixed and reads it with BytesFixed, and never calls these methods. Measured: with these methods present, every one of opgen's eight artifacts is byte-identical, and the Go SDK still refuses the op with "no codec". Co-authored-by: Hanzo Dev <[email protected]>
61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package ids
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// EXPERIMENT — see blue report. This states a ZAP wire for the fixed-width id
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// types: the raw bytes, at their declared width, with no prefix and no text
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// spelling. The width is the type's own length, so it cannot drift from the
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// declaration.
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//
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// It is kept on a branch and NOT merged: an id is an INLINE field of the message
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// that carries it, not a message of its own, so a parent codec writes it with
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// SetBytesFixed and never calls these. Proven in the report.
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// MarshalZAP returns the id's raw bytes.
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func (id ID) MarshalZAP() ([]byte, error) {
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out := make([]byte, len(id))
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copy(out, id[:])
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return out, nil
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}
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// UnmarshalZAP reads the id's raw bytes.
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func (id *ID) UnmarshalZAP(b []byte) error {
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if len(b) != len(id) {
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return errWrongZAPLen
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}
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copy(id[:], b)
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return nil
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}
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func (id ShortID) MarshalZAP() ([]byte, error) {
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out := make([]byte, len(id))
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copy(out, id[:])
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return out, nil
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}
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func (id *ShortID) UnmarshalZAP(b []byte) error {
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if len(b) != len(id) {
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return errWrongZAPLen
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}
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copy(id[:], b)
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return nil
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}
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func (id NodeID) MarshalZAP() ([]byte, error) {
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out := make([]byte, len(id))
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copy(out, id[:])
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return out, nil
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}
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func (id *NodeID) UnmarshalZAP(b []byte) error {
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if len(b) != len(id) {
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return errWrongZAPLen
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}
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copy(id[:], b)
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return nil
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}
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var errWrongZAPLen = zapLenError("ids: ZAP wire length mismatch")
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type zapLenError string
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func (e zapLenError) Error() string { return string(e) }
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