Struct DraftBook 

pub struct DraftBook { /* private fields */ }

The drafts a person has, by conversation key.

The app keeps this in step with the person’s record; the rules that make a draft a draft live here so both apps agree about them.

Implementations

impl DraftBook

pub fn new() -> DraftBook

pub fn get(&self, conversation: &str) -> Option<&str>

The draft under conversation, when it has anything in it.

pub fn has(&self, conversation: &str) -> bool

Whether conversation holds a draft.

pub fn line(&self, conversation: &str) -> Option<String>

The row line for conversation’s draft, when it has one.

pub fn edit(&mut self, conversation: &str, body: &str)

What the person has just typed into conversation: the draft becomes this text, or stops being a draft when it is blank.

pub fn take(&mut self, conversation: &str) -> Option<String>

Take the draft conversation had, for sending. None when there was nothing to send.

pub fn sent(&mut self, conversation: &str, sent: &str)

The draft that was sent, once the send is done: removed only while it is still exactly what was sent. A word typed while the send was in flight is the next message, not something to throw away.

pub fn conversations(&self) -> impl Iterator<Item = &str>

Every conversation with a draft, in key order.

pub fn len(&self) -> usize

How many conversations hold a draft.

pub fn is_empty(&self) -> bool

pub fn entries(&self) -> Vec<(&str, &str)>

Every draft as (conversation, body), for writing back to the person’s record.

Trait Implementations

impl Clone for DraftBook

fn clone(&self) -> DraftBook

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DraftBook

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

Formats the value using the given formatter.

impl Default for DraftBook

fn default() -> DraftBook

Returns the “default value” for a type.

impl PartialEq for DraftBook

fn eq(&self, other: &DraftBook) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for DraftBook

impl StructuralPartialEq for DraftBook