hibana 0.8.0

Const-projected Affine Multiparty Session Types for choreography-first Rust protocols
Documentation 
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use super::{RoleProgramView, private};

pub(crate) struct ProjectionWitness(&'static crate::global::compiled::images::CompiledRoleImage);

impl ProjectionWitness {
    const fn new(image: &'static crate::global::compiled::images::CompiledRoleImage) -> Self {
        Self(image)
    }

    const fn image(&self) -> &'static crate::global::compiled::images::CompiledRoleImage {
        self.0
    }
}

pub struct RoleProgram<const ROLE: u8> {
    _private: (),
    image: ProjectionWitness,
}

impl<const ROLE: u8> RoleProgram<ROLE> {
    #[inline(always)]
    pub(crate) const fn compiled_role_image(
        &self,
    ) -> &'static crate::global::compiled::images::CompiledRoleImage {
        self.image.image()
    }
}

pub(crate) const fn role_program_from_image<const ROLE: u8>(
    image: &'static crate::global::compiled::images::CompiledRoleImage,
) -> RoleProgram<ROLE> {
    RoleProgram {
        _private: (),
        image: ProjectionWitness::new(image),
    }
}

impl<const ROLE: u8> private::RoleProgramViewSeal for RoleProgram<ROLE> {}

impl<const ROLE: u8> RoleProgramView<ROLE> for RoleProgram<ROLE> {
    #[inline(always)]
    fn compiled_role_image(&self) -> &'static crate::global::compiled::images::CompiledRoleImage {
        RoleProgram::compiled_role_image(self)
    }
}

/// Project a typed program into the local view for `ROLE`.
pub fn project<const ROLE: u8, P>(program: &P) -> RoleProgram<ROLE>
where
    P: crate::global::program::Projectable + ?Sized,
{
    crate::global::program::project_unnamed(program)
}