69 lines
1.9 KiB
Rust
69 lines
1.9 KiB
Rust
use std::marker::PhantomData;
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use super::*;
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pub trait ModeFactory {
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type Mode: ?Sized;
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}
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pub struct RegularFactoryMode;
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pub trait RegularFactory<'a, Ctx: Context<'a>>:
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FactoryBase<'a, Ctx> + ModeFactory<Mode = RegularFactoryMode>
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{
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fn rdeserialize(&self, inctx: impl InCtx<'a, Ctx>) -> ParseResult<'a, Ctx, Self>;
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fn rextend(&self, mentionable: Self::Mtbl, tail: &[u8]) -> ParseResult<'a, Ctx, Self>;
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}
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pub trait FactoryWithMode: ModeFactory {
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type WithMode: ?Sized;
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}
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pub struct WithMode<F: ?Sized, M: ?Sized>(PhantomData<M>, F);
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impl<F: ?Sized + ModeFactory> FactoryWithMode for F {
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type WithMode = WithMode<Self, <Self as ModeFactory>::Mode>;
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}
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pub trait FactoryProxy<'a, Ctx: Context<'a>> {
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type F: FactoryBase<'a, Ctx> + ModeFactory;
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fn pdeserialize(f: &Self::F, inctx: impl InCtx<'a, Ctx>) -> ParseResult<'a, Ctx, Self::F>;
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fn pextend(
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f: &Self::F,
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mentionable: Mtbl<'a, Ctx, Self::F>,
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tail: &[u8],
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) -> ParseResult<'a, Ctx, Self::F>;
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}
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impl<'a, Ctx: Context<'a>, F: RegularFactory<'a, Ctx>> FactoryProxy<'a, Ctx>
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for WithMode<F, RegularFactoryMode>
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{
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type F = F;
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fn pdeserialize(f: &Self::F, inctx: impl InCtx<'a, Ctx>) -> ParseResult<'a, Ctx, Self::F> {
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f.rdeserialize(inctx)
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}
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fn pextend(
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f: &Self::F,
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mentionable: Mtbl<'a, Ctx, Self::F>,
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tail: &[u8],
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) -> ParseResult<'a, Ctx, Self::F> {
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f.rextend(mentionable, tail)
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}
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}
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impl<'a, Ctx: Context<'a>, F: FactoryBase<'a, Ctx> + FactoryWithMode> Factory<'a, Ctx> for F
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where
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F::WithMode: FactoryProxy<'a, Ctx, F = Self>,
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{
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fn deserialize(&self, inctx: impl InCtx<'a, Ctx>) -> ParseResult<'a, Ctx, Self> {
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<F::WithMode as FactoryProxy<'a, Ctx>>::pdeserialize(self, inctx)
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}
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fn extend(&self, mentionable: Self::Mtbl, tail: &[u8]) -> ParseResult<'a, Ctx, Self> {
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<F::WithMode as FactoryProxy<'a, Ctx>>::pextend(self, mentionable, tail)
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}
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}
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