Struct SwapNote 

pub struct SwapNote;

TODO: add docs

Implementations

impl SwapNote

pub const NUM_STORAGE_ITEMS: usize = 16

Expected number of storage items of the SWAP note.

pub fn script() -> NoteScript

Returns the script of the SWAP note.

pub fn script_root() -> Word

Returns the SWAP note script root.

pub fn create<R>( sender: AccountId, offered_asset: Asset, requested_asset: Asset, swap_note_type: NoteType, swap_note_attachment: NoteAttachment, payback_note_type: NoteType, payback_note_attachment: NoteAttachment, rng: &mut R, ) -> Result<(Note, NoteDetails), NoteError>

where R: FeltRng,

Generates a SWAP note - swap of assets between two accounts - and returns the note as well as NoteDetails for the payback note.

This script enables a swap of 2 assets between the sender account and any other account that is willing to consume the note. The consumer will receive the offered_asset and will create a new P2ID note with sender as target, containing the requested_asset.

Errors

Returns an error if deserialization or compilation of the SWAP script fails.

pub fn build_tag( note_type: NoteType, offered_asset: &Asset, requested_asset: &Asset, ) -> NoteTag

Returns a note tag for a swap note with the specified parameters.

The tag is laid out as follows:

[
  note_type (2 bits) | script_root (14 bits)
  | offered_asset_faucet_id (8 bits) | requested_asset_faucet_id (8 bits)
]

The script root serves as the use case identifier of the SWAP tag.