Module patch 

Patch payload types.

Split into two files (DC-58): this file keeps PatchPayload/PatchPurpose/Operation/ OperationKind and the text-span helpers; patch/operations.rs holds the seven per-kind payload structs (CreateFile, DeleteNode, …). All items stay pub and are re-exported here at the same path (payload::patch::*), so every existing caller — including the crate-root re-export at payload.rs — is unaffected. No behaviour change.

Structs

ChangePerm

Permission change payload (FDD-03 §9.3, node-addressed).

CreateFile

Create file payload (FDD-03 §9.3).

CreateSymlink

Symlink creation payload (FDD-03 §9.3). Note tag order: path (1), then node_id (2), then target (3).

DeleteNode

Delete a node (FDD-03 §9.3; the wire tag is retained as delete_file). The preimage is discriminated by old_node_kind: text/binary file nodes carry old_blob_id + old_mode; symlink nodes carry old_target.

EditText

Text edit payload using content-anchor identity.

Operation

A single operation inside a patch.

PatchPayload

Patch payload.

RenamePath

Rename path payload (FDD-03 §9.3, node-addressed).

ReplaceBinary

Binary replacement payload.

Enums

DeleteNodePreimage

Discriminated deletion preimage (FDD-03 §9.3).

OperationKind

Operation variants.

PatchPurpose

Identity-bearing patch purpose.

Constants

TEXT_SPAN_HASH_BYTES

Number of bytes in a content-anchored text span hash.

Functions

text_span_hash

Compute the stable hash used by content-anchored text edit preconditions.

validate_text_anchor_id

Validate a stable content-anchor identifier.