71 lines
1.7 KiB
Rust
71 lines
1.7 KiB
Rust
use {
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crate::{
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utils::{
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buffd::{MsgParser, MsgParserError},
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clonecell::CloneCell,
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},
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wire::{jay_select_toplevel::*, JaySelectToplevelId},
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wl_usr::{usr_ifs::usr_jay_toplevel::UsrJayToplevel, usr_object::UsrObject, UsrCon},
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},
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std::rc::Rc,
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thiserror::Error,
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};
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pub struct UsrJaySelectToplevel {
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pub id: JaySelectToplevelId,
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pub con: Rc<UsrCon>,
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pub owner: CloneCell<Option<Rc<dyn UsrJaySelectToplevelOwner>>>,
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}
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pub trait UsrJaySelectToplevelOwner {
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fn done(&self, toplevel: Option<Rc<UsrJayToplevel>>);
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}
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impl UsrJaySelectToplevel {
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fn done(&self, parser: MsgParser<'_, '_>) -> Result<(), UsrJaySelectToplevelError> {
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let ev: Done = self.con.parse(self, parser)?;
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let tl = if ev.id.is_none() {
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None
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} else {
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let tl = Rc::new(UsrJayToplevel {
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id: ev.id,
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con: self.con.clone(),
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owner: Default::default(),
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});
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self.con.add_object(tl.clone());
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Some(tl)
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};
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match self.owner.get() {
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Some(owner) => owner.done(tl),
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_ => {
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if let Some(tl) = tl {
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self.con.remove_obj(&*tl);
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}
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}
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}
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self.con.remove_obj(self);
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Ok(())
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}
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}
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usr_object_base! {
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UsrJaySelectToplevel, JaySelectToplevel;
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DONE => done,
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}
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impl UsrObject for UsrJaySelectToplevel {
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fn destroy(&self) {
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// nothing
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}
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fn break_loops(&self) {
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self.owner.take();
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}
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}
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#[derive(Debug, Error)]
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pub enum UsrJaySelectToplevelError {
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#[error("Parsing failed")]
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MsgParserError(#[from] MsgParserError),
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}
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