alef 0.25.21

Opinionated polyglot binding generator for Rust libraries
Documentation 
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use minijinja::Environment;

static TEMPLATES: &[(&str, &str)] = &[
    (
        "gen_unregistration_fn",
        include_str!("templates/gen_unregistration_fn.jinja"),
    ),
    ("gen_clear_fn", include_str!("templates/gen_clear_fn.jinja")),
    ("gen_constructor", include_str!("templates/gen_constructor.jinja")),
    (
        "gen_registration_fn",
        include_str!("templates/gen_registration_fn.jinja"),
    ),
    (
        "gen_sync_method_body",
        include_str!("templates/gen_sync_method_body.jinja"),
    ),
    (
        "gen_async_method_body",
        include_str!("templates/gen_async_method_body.jinja"),
    ),
    ("gen_visitor_bridge", include_str!("templates/gen_visitor_bridge.jinja")),
    (
        "gen_visitor_method_wasm",
        include_str!("templates/gen_visitor_method_wasm.jinja"),
    ),
    ("rustdoc", include_str!("templates/rustdoc.jinja")),
    (
        "gen_bridge_function",
        include_str!("templates/gen_bridge_function.jinja"),
    ),
    (
        "gen_options_field_bridge_body",
        include_str!("templates/gen_options_field_bridge_body.jinja"),
    ),
    ("gen_free_function", include_str!("templates/gen_free_function.jinja")),
    (
        "gen_instance_method",
        include_str!("templates/gen_instance_method.jinja"),
    ),
    ("gen_static_method", include_str!("templates/gen_static_method.jinja")),
    ("gen_result_body", include_str!("templates/gen_result_body.jinja")),
    ("gen_direct_body", include_str!("templates/gen_direct_body.jinja")),
    (
        "gen_unit_result_body",
        include_str!("templates/gen_unit_result_body.jinja"),
    ),
    (
        "serde_vec_named_from_optional",
        include_str!("templates/serde_vec_named_from_optional.jinja"),
    ),
    (
        "serde_vec_named_from_required",
        include_str!("templates/serde_vec_named_from_required.jinja"),
    ),
    (
        "lifetime_string_optional",
        include_str!("templates/lifetime_string_optional.jinja"),
    ),
    (
        "lifetime_string_required",
        include_str!("templates/lifetime_string_required.jinja"),
    ),
    (
        "lifetime_map_required",
        include_str!("templates/lifetime_map_required.jinja"),
    ),
    ("gen_opaque_struct", include_str!("templates/gen_opaque_struct.jinja")),
    ("gen_struct", include_str!("templates/gen_struct.jinja")),
    (
        "gen_visitor_handle_constructor",
        include_str!("templates/gen_visitor_handle_constructor.jinja"),
    ),
    (
        "serde_named_optional",
        include_str!("templates/serde_named_optional.jinja"),
    ),
    (
        "serde_named_required",
        include_str!("templates/serde_named_required.jinja"),
    ),
    (
        "serde_vec_named_optional",
        include_str!("templates/serde_vec_named_optional.jinja"),
    ),
    (
        "serde_vec_named_required",
        include_str!("templates/serde_vec_named_required.jinja"),
    ),
    (
        "serde_vec_string_refs_optional",
        include_str!("templates/serde_vec_string_refs_optional.jinja"),
    ),
    (
        "serde_vec_string_refs_required",
        include_str!("templates/serde_vec_string_refs_required.jinja"),
    ),
    (
        "serde_vec_nested_optional",
        include_str!("templates/serde_vec_nested_optional.jinja"),
    ),
    (
        "serde_vec_nested_required",
        include_str!("templates/serde_vec_nested_required.jinja"),
    ),
    (
        "serde_vec_tuple_optional",
        include_str!("templates/serde_vec_tuple_optional.jinja"),
    ),
    (
        "serde_vec_tuple_required",
        include_str!("templates/serde_vec_tuple_required.jinja"),
    ),
    (
        "serde_vec_unit_enum_optional",
        include_str!("templates/serde_vec_unit_enum_optional.jinja"),
    ),
    (
        "serde_vec_unit_enum_required",
        include_str!("templates/serde_vec_unit_enum_required.jinja"),
    ),
    ("gen_input_dto", include_str!("templates/gen_input_dto.jinja")),
    (
        "serde_config_required",
        include_str!("templates/serde_config_required.jinja"),
    ),
    (
        "serde_config_optional",
        include_str!("templates/serde_config_optional.jinja"),
    ),
    (
        "service_js_class_open.jinja",
        include_str!("templates/service_js_class_open.jinja"),
    ),
    (
        "service_js_constructor.jinja",
        include_str!("templates/service_js_constructor.jinja"),
    ),
    (
        "service_js_configurator.jinja",
        include_str!("templates/service_js_configurator.jinja"),
    ),
    (
        "service_js_direct_variant.jinja",
        include_str!("templates/service_js_direct_variant.jinja"),
    ),
    (
        "service_js_decorator_variant.jinja",
        include_str!("templates/service_js_decorator_variant.jinja"),
    ),
];

pub(crate) fn make_env() -> Environment<'static> {
    let mut env = Environment::new();
    env.set_trim_blocks(true);
    env.set_lstrip_blocks(true);
    env.set_keep_trailing_newline(true);
    for (name, src) in TEMPLATES {
        env.add_template(name, src).expect("built-in template is valid");
    }
    env
}

pub(crate) fn render(template_name: &str, ctx: minijinja::Value) -> String {
    make_env()
        .get_template(template_name)
        .unwrap_or_else(|_| panic!("template {template_name} not found"))
        .render(ctx)
        .unwrap_or_else(|e| panic!("template {template_name} failed to render: {e}"))
}