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wip: slowly remembering where i was
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🪞👃🪞 2025-06-13 11:42:20 +03:00
parent 17506726cb
commit c8827b43c3
9 changed files with 114 additions and 135 deletions
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13
input/src/input_dsl.rs
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@ -4,7 +4,10 @@ use std::fmt::Debug;
#[derive(Default, Debug)] pub struct InputLayers(Vec<InputLayer>);
#[derive(Default, Debug)] pub struct InputLayer(Option<Ast>, Ast);
#[derive(Default, Debug)] pub struct InputLayer {
condition: Option<Ast>,
bindings: Ast,
}
impl InputLayers {
pub fn new (layer: Ast) -> Self {
@ -19,8 +22,8 @@ impl InputLayers {
pub fn add_layer (&mut self, layer: Ast) -> &mut Self {
self.add_layer_if(None, layer.into()); self
}
pub fn add_layer_if (&mut self, condition: Option<Ast>, binding: Ast) -> &mut Self {
self.0.push(InputLayer(condition, binding));
pub fn add_layer_if (&mut self, condition: Option<Ast>, bindings: Ast) -> &mut Self {
self.0.push(InputLayer { condition, bindings });
self
}
pub fn handle <S: Eval<Ast, bool> + Eval<Ast, O>, I: Eval<Ast, bool>, O: Command<S>> (&self, state: &mut S, input: I) -> Perhaps<O> {
@ -33,13 +36,13 @@ pub struct InputHandle<'a, S>(&'a mut S, &'a [InputLayer]);
impl<'a, S: Eval<Ast, bool> + Eval<Ast, O>, I: Eval<Ast, bool>, O: Command<S>> Eval<I, O> for InputHandle<'a, S> {
fn try_eval (&self, input: I) -> Perhaps<O> {
let Self(state, layers) = self;
for InputLayer(condition, binding) in layers.iter() {
for InputLayer { condition, bindings } in layers.iter() {
let mut matches = true;
if let Some(condition) = condition {
matches = state.eval(condition.clone(), ||"input: no condition")?;
}
if matches
&& let Some(exp) = binding.exp()
&& let Some(exp) = bindings.exp()
&& let Some(ast) = exp.peek()
&& input.eval(ast.clone(), ||"InputLayers: input.eval(binding) failed")?
&& let Some(command) = state.try_eval(ast)? {