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3 changed files with 82 additions and 65 deletions
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@ -11,12 +11,6 @@ pub trait FromDsl<T>: Sized {
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}
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}
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impl<'s, T: FromDsl<U>, U> DslInto<'s, T> for U {
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fn dsl_into (&self, dsl: &impl Dsl) -> Perhaps<T> {
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T::from_dsl(self, dsl)
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}
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}
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/// `self` + [Dsl] -> `T`
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pub trait DslInto<'s, T> {
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fn dsl_into (&'s self, dsl: &impl Dsl) -> Perhaps<T>;
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@ -28,6 +22,17 @@ pub trait DslInto<'s, T> {
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}
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}
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/// `self` + `T` -> [Dsl]
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pub trait DslFrom<T> {
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fn dsl_from (&self, dsl: &T) -> Perhaps<impl Dsl>;
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fn dsl_from_or (&self, dsl: &T, err: Box<dyn Error>) -> Usually<impl Dsl> {
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self.dsl_from(dsl)?.ok_or(err)
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}
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fn dsl_from_or_else (&self, dsl: &T, err: impl Fn()->Box<dyn Error>) -> Usually<impl Dsl> {
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self.dsl_from(dsl)?.ok_or_else(err)
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}
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}
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/// `self` + `T` + -> [Dsl]
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pub trait IntoDsl<T> {
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fn into_dsl (&self, state: &T) -> Perhaps<impl Dsl>;
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@ -39,13 +44,14 @@ pub trait IntoDsl<T> {
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}
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}
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/// `self` + `T` -> [Dsl]
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pub trait DslFrom<T> {
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fn dsl_from (&self, dsl: &impl Dsl) -> Perhaps<impl Dsl>;
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fn dsl_from_or (&self, dsl: &impl Dsl, err: Box<dyn Error>) -> Usually<impl Dsl> {
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self.dsl_from(dsl)?.ok_or(err)
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}
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fn dsl_from_or_else (&self, dsl: &impl Dsl, err: impl Fn()->Box<dyn Error>) -> Usually<impl Dsl> {
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self.dsl_from(dsl)?.ok_or_else(err)
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impl<'s, T: FromDsl<U>, U> DslInto<'s, T> for U {
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fn dsl_into (&self, dsl: &impl Dsl) -> Perhaps<T> {
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T::from_dsl(self, dsl)
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}
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}
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impl<T: DslFrom<U>, U> IntoDsl<T> for U {
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fn into_dsl (&self, state: &T) -> Perhaps<impl Dsl> {
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T::dsl_from(state, self)
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}
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}
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