Struct TokenRegistry 

pub struct TokenRegistry { /* private fields */ }

Hands out host box tokens that were never minted or reserved before, from 1 up to MAX_HOST_TOKEN.

Implementations

impl TokenRegistry

pub fn new() -> Self

A registry that has handed out nothing.

pub fn mint(&mut self) -> Result<u32, TokenError>

A fresh token.

pub fn reserve(&mut self, token: u32) -> Result<(), TokenError>

Mark a token the host chose itself as taken so it is never minted.

pub fn reserve_document(&mut self, doc: &Document)

Reserve every token in a document, tokens above the limit are left to Document::validate.

pub fn remint( &mut self, doc: &mut Document, ) -> Result<Vec<(u32, u32)>, TokenError>

Give every host box in doc its own fresh token and return (old, new) per box in document order.

pub fn live( editor: &Editor, history: &UndoStack, clipboard: Option<&Document>, ) -> BTreeSet<u32>

Tokens the document, the history, or the clipboard still reference, any other token’s content is dead.

Trait Implementations

impl Clone for TokenRegistry

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TokenRegistry

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TokenRegistry

fn default() -> Self

Returns the “default value” for a type.