radn-rs/src/rstd/inlining/modes.rs
2023-07-29 19:31:44 +00:00

78 lines
1.9 KiB
Rust

use super::*;
pub struct InliningMode;
impl Mode for InliningMode {
type ParseResult<A, E, I> = Result<(A, I), E>;
type ExtensionResult<A, E> = E;
fn map_err<A, E0, E1, I>(
result: Self::ParseResult<A, E0, I>,
f: impl FnOnce(E0) -> E1,
) -> Self::ParseResult<A, E1, I> {
result.map_err(f)
}
fn bind<A0, A1, E, I>(
result: Self::ParseResult<A0, E, I>,
f: impl FnOnce(A0) -> Result<A1, E>,
) -> Self::ParseResult<A1, E, I> {
let (a0, i) = result?;
let a1 = f(a0)?;
Ok((a1, i))
}
fn seal<A, E, I>(result: Self::ParseResult<A, E, I>) -> Result<A, E> {
result.map(|(a, _)| a)
}
fn xmap_err<A, E0, E1>(
result: Self::ExtensionResult<A, E0>,
f: impl FnOnce(E0) -> E1,
) -> Self::ExtensionResult<A, E1> {
f(result)
}
fn xbind<A0, A1, E>(
result: Self::ExtensionResult<A0, E>,
_f: impl FnOnce(A0) -> Result<A1, E>,
) -> Self::ExtensionResult<A1, E> {
result
}
fn xseal<A, E>(result: Self::ExtensionResult<A, E>) -> Result<A, E> {
Err(result)
}
}
impl<'a, Ctx: Context<'a>, F: InlineableFactory<'a, Ctx>> FactoryModeProxy<'a, Ctx>
for WithMode<F, InliningMode>
{
type F = F;
fn pmdeserialize<I: InCtx<'a, Ctx>>(f: &Self::F, inctx: I) -> ParseResultM<'a, Ctx, F, I> {
f.ideserialize(inctx)
}
fn pmextend(
f: &F,
_mentionable: Mtbl<'a, Ctx, F>,
tail: &[u8],
) -> ExtensionResultM<'a, Ctx, F> {
f.extension_error(tail)
}
}
impl<A: InlineableAtomic> AtomicProxy for WithMode<A, InliningMode> {
type A = A;
fn pa_deserialize(inlining: impl Inlining) -> AParseResult<Self::A> {
A::a_ideserialize(inlining).seal()
}
fn pa_extend(_a: Self::A, tail: &[u8]) -> AParseResult<Self::A> {
Err(A::a_extension_error(tail))
}
}