alef 0.114.0

Opinionated polyglot binding generator for Rust libraries
Documentation 
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{# ~keep FRB hard-codes StreamSink errors to AnyhowException. The success codec decodes #}
{# the envelope and throws typed errors while retaining the public Stream<Item> surface. #}
{% if source_cfg %}#[cfg({{ source_cfg }})]
{% endif %}#[frb(ignore)]
mod {{ transport.module }} {
    pub struct {{ transport.carrier }}(pub super::{{ transport.wire }});
}
{% if source_cfg %}#[cfg({{ source_cfg }})]
{% endif %}use {{ transport.module }}::{{ transport.carrier }};

{% if source_cfg %}#[cfg({{ source_cfg }})]
{% endif %}pub enum {{ transport.wire }} {
    Item{% if not transport.unit_item %} { value: ::std::boxed::Box<{{ item_type }}> }{% endif %},
    Error { error: ::std::boxed::Box<{{ error_type }}> },
    NativeFailure { message: String },
}

{% if source_cfg %}#[cfg({{ source_cfg }})]
{% endif %}impl From<{{ core_error_type }}> for {{ transport.carrier }} {
    fn from(value: {{ core_error_type }}) -> Self {
        Self(match {{ error_type }}::try_from(value) {
            Ok(error) => {{ transport.wire }}::Error { error: ::std::boxed::Box::new(error) },
            Err(message) => {{ transport.wire }}::NativeFailure { message },
        })
    }
}

{% if source_cfg %}#[cfg({{ source_cfg }})]
{% endif %}#[frb(rust2dart(dart_type = "{{ dart_type }}", dart_code = {{ decode_code }}))]
pub fn {{ transport.converter }}(value: {{ transport.carrier }}) -> {{ transport.wire }} {
    value.0
}

{% if source_cfg %}#[cfg({{ source_cfg }})]
{% endif %}#[frb(dart2rust(dart_type = "{{ dart_type }}", dart_code = {{ encode_code }}))]
pub fn {{ transport.decoder }}(value: {{ transport.wire }}) -> {{ transport.carrier }} {
    {{ transport.carrier }}(value)
}