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https://codeberg.org/unspeaker/tengri.git
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FromDsl -> Namespace
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parent
455d6d00d5
commit
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8 changed files with 33 additions and 32 deletions
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@ -1,6 +1,6 @@
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use crate::*;
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pub trait Dsl<Other>: Sized {
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pub trait Dsl<Other> {
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fn take <'state, 'source: 'state> (
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&'state self,
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token: &mut TokenIter<'source>
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@ -18,7 +18,7 @@ pub trait Dsl<Other>: Sized {
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}
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}
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}
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pub trait FromDsl<'source, State>: Sized {
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pub trait Namespace<'source, State>: Sized {
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fn take_from <'state> (state: &'state State, token: &mut TokenIter<'source>)
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-> Perhaps<Self>;
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fn take_from_or_fail <'state> (
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@ -26,14 +26,14 @@ pub trait FromDsl<'source, State>: Sized {
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token: &mut TokenIter<'source>,
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error: impl Into<Box<dyn std::error::Error>>
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) -> Usually<Self> {
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if let Some(value) = FromDsl::<State>::take_from(state, token)? {
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if let Some(value) = Namespace::<State>::take_from(state, token)? {
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Ok(value)
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} else {
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Result::Err(error.into())
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}
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}
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}
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//impl<State: Dsl<T>, T> FromDsl<State> for T {
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//impl<State: Dsl<T>, T> Namespace<State> for T {
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//fn take_from <'state, 'source: 'state> (state: &'state State, token: &mut TokenIter<'source>)
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//-> Perhaps<Self>
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//{
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@ -45,7 +45,7 @@ pub trait FromDsl<'source, State>: Sized {
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/// specifying two types and providing an expression.
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#[macro_export] macro_rules! from_dsl {
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(@a: $T:ty: |$state:ident, $words:ident|$expr:expr) => {
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impl<'source, State: Dsl<A>, A> FromDsl<'source, State> for $T {
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impl<'source, State: Dsl<A>, A> Namespace<'source, State> for $T {
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fn take_from <'state> (
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$state: &'state State,
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$words: &mut TokenIter<'source>,
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@ -55,7 +55,7 @@ pub trait FromDsl<'source, State>: Sized {
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}
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};
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(@ab: $T:ty: |$state:ident, $words:ident|$expr:expr) => {
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impl<'source, State: Dsl<A> + Dsl<B>, A, B> FromDsl<'source, State> for $T {
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impl<'source, State: Dsl<A> + Dsl<B>, A, B> Namespace<'source, State> for $T {
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fn take_from <'state> (
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$state: &'state State,
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$words: &mut TokenIter<'source>,
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@ -65,7 +65,7 @@ pub trait FromDsl<'source, State>: Sized {
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}
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};
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($T:ty: |$state:ident:$S:ty, $words:ident|$expr:expr) => {
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impl<'source> FromDsl<'source, $S> for $T {
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impl<'source> Namespace<'source, $S> for $T {
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fn take_from <'state> (
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$state: &'state $S,
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$words: &mut TokenIter<'source>,
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@ -5,13 +5,13 @@ use std::marker::PhantomData;
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pub trait DslInput: Input { fn matches_dsl (&self, token: &str) -> bool; }
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/// A pre-configured mapping of input events to commands.
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pub trait KeyMap<'source, S, C: FromDsl<'source, S> + Command<S>, I: DslInput> {
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pub trait KeyMap<'source, S, C: Namespace<'source, S> + Command<S>, I: DslInput> {
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/// Try to find a command that matches the current input event.
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fn keybind_resolve (&self, state: &S, input: &I) -> Perhaps<C>;
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}
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/// A [SourceIter] can be a [KeyMap].
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impl<'source, S, C: FromDsl<'source, S> + Command<S>, I: DslInput>
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impl<'source, S, C: Namespace<'source, S> + Command<S>, I: DslInput>
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KeyMap<'source, S, C, I>
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for SourceIter<'source> {
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fn keybind_resolve (&self, state: &S, input: &I) -> Perhaps<C> {
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@ -24,7 +24,7 @@ for SourceIter<'source> {
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match exp_iter.next() {
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Some(Token { value: Value::Sym(binding), .. }) => {
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if input.matches_dsl(binding) {
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if let Some(command) = FromDsl::take_from(state, &mut exp_iter)? {
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if let Some(command) = Namespace::take_from(state, &mut exp_iter)? {
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return Ok(Some(command))
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}
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}
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@ -40,7 +40,7 @@ for SourceIter<'source> {
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}
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/// A [TokenIter] can be a [KeyMap].
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impl<'source, S, C: FromDsl<'source, S> + Command<S>, I: DslInput>
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impl<'source, S, C: Namespace<'source, S> + Command<S>, I: DslInput>
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KeyMap<'source, S, C, I>
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for TokenIter<'source> {
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fn keybind_resolve (&self, state: &S, input: &I) -> Perhaps<C> {
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@ -52,7 +52,7 @@ for TokenIter<'source> {
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match e.next() {
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Some(Token { value: Value::Sym(binding), .. }) => {
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if input.matches_dsl(binding) {
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if let Some(command) = FromDsl::take_from(state, &mut e)? {
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if let Some(command) = Namespace::take_from(state, &mut e)? {
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return Ok(Some(command))
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}
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}
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@ -67,23 +67,24 @@ for TokenIter<'source> {
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}
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}
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pub type InputLayerCond<'source, S> = Box<dyn Fn(&S)->Usually<bool> + 'source>;
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pub type InputCondition<'source, S> =
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Box<dyn Fn(&S)->Usually<bool> + Send + Sync + 'source>;
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/// A collection of pre-configured mappings of input events to commands,
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/// which may be made available subject to given conditions.
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pub struct InputMap<'source,
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S,
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C: Command<S> + FromDsl<'source, S>,
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C: Command<S> + Namespace<'source, S>,
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I: DslInput,
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M: KeyMap<'source, S, C, I>
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> {
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__: PhantomData<&'source (S, C, I)>,
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pub layers: Vec<(InputLayerCond<'source, S>, M)>,
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pub layers: Vec<(InputCondition<'source, S>, M)>,
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}
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impl<'source,
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S,
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C: Command<S> + FromDsl<'source, S>,
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C: Command<S> + Namespace<'source, S>,
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I: DslInput,
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M: KeyMap<'source, S, C, I>
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> Default for InputMap<'source, S, C, I, M>{
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@ -94,7 +95,7 @@ impl<'source,
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impl<'source,
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S,
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C: Command<S> + FromDsl<'source, S>,
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C: Command<S> + Namespace<'source, S>,
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I: DslInput,
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M: KeyMap<'source, S, C, I>
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> InputMap<'source, S, C, I, M> {
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@ -109,11 +110,11 @@ impl<'source,
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self.add_layer_if(Box::new(|_|Ok(true)), keymap);
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self
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}
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pub fn layer_if (mut self, condition: InputLayerCond<'source, S>, keymap: M) -> Self {
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pub fn layer_if (mut self, condition: InputCondition<'source, S>, keymap: M) -> Self {
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self.add_layer_if(condition, keymap);
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self
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}
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pub fn add_layer_if (&mut self, condition: InputLayerCond<'source, S>, keymap: M) -> &mut Self {
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pub fn add_layer_if (&mut self, condition: InputCondition<'source, S>, keymap: M) -> &mut Self {
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self.layers.push((Box::new(condition), keymap));
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self
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}
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@ -121,7 +122,7 @@ impl<'source,
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impl<'source,
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S,
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C: Command<S> + FromDsl<'source, S>,
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C: Command<S> + Namespace<'source, S>,
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I: DslInput,
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M: KeyMap<'source, S, C, I>
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> std::fmt::Debug for InputMap<'source, S, C, I, M> {
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@ -133,7 +134,7 @@ impl<'source,
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/// An [InputMap] can be a [KeyMap].
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impl<'source,
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S,
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C: Command<S> + FromDsl<'source, S>,
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C: Command<S> + Namespace<'source, S>,
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I: DslInput,
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M: KeyMap<'source, S, C, I>
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> KeyMap<'source, S, C, I> for InputMap<'source, S, C, I, M> {
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@ -18,7 +18,7 @@ impl<A, B> Either<A, B> {
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}
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}
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#[cfg(feature = "dsl")]
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impl<'source, A, T: Dsl<bool> + Dsl<A>> FromDsl<'source, T> for When<A> {
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impl<'source, A, T: Dsl<bool> + Dsl<A>> Namespace<'source, T> for When<A> {
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fn take_from <'state> (
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state: &'state T,
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token: &mut TokenIter<'source>
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@ -56,7 +56,7 @@ impl<E: Output, A: Render<E>> Content<E> for When<A> {
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}
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}
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#[cfg(feature = "dsl")]
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impl<'source, A, B, T: Dsl<bool> + Dsl<A> + Dsl<B>> FromDsl<'source, T> for Either<A, B> {
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impl<'source, A, B, T: Dsl<bool> + Dsl<A> + Dsl<B>> Namespace<'source, T> for Either<A, B> {
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fn take_from <'state> (
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state: &'state T,
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token: &mut TokenIter<'source>
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@ -33,7 +33,7 @@ macro_rules! transform_xy {
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#[inline] pub const fn xy (item: A) -> Self { Self::XY(item) }
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}
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#[cfg(feature = "dsl")]
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impl<'source, A, T: Dsl<A>> FromDsl<'source, T> for $Enum<A> {
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impl<'source, A, T: Dsl<A>> Namespace<'source, T> for $Enum<A> {
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fn take_from <'state> (state: &'state T, iter: &mut TokenIter<'source>) -> Perhaps<Self> {
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if let Some(Token { value: Value::Key(k), .. }) = iter.peek() {
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let mut base = iter.clone();
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@ -77,7 +77,7 @@ macro_rules! transform_xy_unit {
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#[inline] pub const fn xy (x: U, y: U, item: A) -> Self { Self::XY(x, y, item) }
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}
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#[cfg(feature = "dsl")]
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impl<'source, A, U: Coordinate, T: Dsl<A> + Dsl<U>> FromDsl<'source, T> for $Enum<U, A> {
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impl<'source, A, U: Coordinate, T: Dsl<A> + Dsl<U>> Namespace<'source, T> for $Enum<U, A> {
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fn take_from <'state> (state: &'state T, iter: &mut TokenIter<'source>) -> Perhaps<Self> {
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Ok(if let Some(Token { value: Value::Key($x|$y|$xy), .. }) = iter.peek() {
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let mut base = iter.clone();
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@ -13,7 +13,7 @@ use crate::*;
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//// Provides components to the view.
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//#[cfg(feature = "dsl")]
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//pub trait ViewContext<'state, E: Output + 'state>:
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//FromDsl<bool> + FromDsl<usize> + FromDsl<E::Unit> + Send + Sync
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//Namespace<bool> + Namespace<usize> + Namespace<E::Unit> + Send + Sync
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//{
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//fn get_content_sym <'source: 'state> (&'state self, iter: &mut TokenIter<'source>)
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//-> Perhaps<RenderBox<'state, E>>;
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@ -39,7 +39,7 @@ use crate::*;
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//}
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//#[cfg(feature = "dsl")]
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//impl<'context, O: Output + 'context, T: ViewContext<'context, O>> FromDsl<T> for RenderBox<'context, O> {
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//impl<'context, O: Output + 'context, T: ViewContext<'context, O>> Namespace<T> for RenderBox<'context, O> {
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//fn take_from <'state, 'source: 'state> (state: &'state T, token: &mut TokenIter<'source>)
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//-> Perhaps<RenderBox<'context, O>>
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//{
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@ -84,7 +84,7 @@ impl ToTokens for CommandDef {
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let mut out = TokenStream2::new();
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for (arg, ty) in arm.args() {
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write_quote_to(&mut out, quote! {
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#arg: FromDsl::take_from_or_fail(self, words)?,
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#arg: Namespace::take_from_or_fail(self, words)?,
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});
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}
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out
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@ -149,7 +149,7 @@ impl ToTokens for CommandDef {
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}
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}
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/// Generated by [tengri_proc::command].
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impl<'source> ::tengri::dsl::FromDsl<'source, #state> for #command_enum {
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impl<'source> ::tengri::dsl::Namespace<'source, #state> for #command_enum {
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fn take_from <'state> (
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state: &'state #state,
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words: &mut ::tengri::dsl::TokenIter<'source>
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@ -85,7 +85,7 @@ impl ToTokens for ExposeImpl {
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let values = variants.iter().map(ExposeArm::from);
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write_quote_to(out, quote! {
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/// Generated by [tengri_proc::expose].
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impl<'source> ::tengri::dsl::FromDsl<'source, #state> for #t {
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impl<'source> ::tengri::dsl::Namespace<'source, #state> for #t {
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fn take_from <'state> (
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state: &'state #state,
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words: &mut ::tengri::dsl::TokenIter<'source>
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@ -70,7 +70,7 @@ impl ToTokens for ViewDef {
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/// Gives [#view] the ability to construct the [Render]able
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/// which might corresponds to a given [TokenStream],
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/// while taking [#view]'s state into consideration.
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impl<'source> ::tengri::dsl::FromDsl<'source, #view> for Box<dyn Render<#output> + 'source> {
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impl<'source> ::tengri::dsl::Namespace<'source, #view> for Box<dyn Render<#output> + 'source> {
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fn take_from <'state> (
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state: &'state #view,
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words: &mut ::tengri::dsl::TokenIter<'source>,
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