alef 0.25.54

Opinionated polyglot binding generator for Rust libraries
Documentation 
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use super::*;
use crate::core::ir::{FunctionDef, ParamDef, TypeRef};

fn make_get_language_fn() -> FunctionDef {
    FunctionDef {
        name: "get_language".to_string(),
        rust_path: "sample_capsule::get_language".to_string(),
        original_rust_path: String::new(),
        params: vec![ParamDef {
            name: "name".to_string(),
            ty: TypeRef::String,
            optional: false,
            default: None,
            sanitized: false,
            typed_default: None,
            is_ref: true,
            is_mut: false,
            newtype_wrapper: None,
            original_type: None,
            map_is_ahash: false,
            map_key_is_cow: false,
            vec_inner_is_ref: false,
            map_is_btree: false,
            core_wrapper: crate::core::ir::CoreWrapper::None,
        }],
        return_type: TypeRef::Named("Language".to_string()),
        is_async: false,
        error_type: None,
        doc: String::new(),
        cfg: None,
        sanitized: false,
        return_sanitized: false,
        returns_ref: false,
        returns_cow: false,
        return_newtype_wrapper: None,
        binding_excluded: false,
        binding_exclusion_reason: None,
        version: Default::default(),
    }
}

#[test]
fn capsule_wrapper_errors_when_construct_expr_empty() {
    let func = make_get_language_fn();
    let cfg = HostCapsuleTypeConfig {
        host_type: "com.example.Language".to_string(),
        package: String::new(),
        package_version: String::new(),
        construct_expr: String::new(),
    };
    let mut body = String::new();
    emit_capsule_function_wrapper(&mut body, &func, "SampleBridge", &cfg);
    assert!(
        body.contains("ALEF ERROR"),
        "empty construct_expr must produce ALEF ERROR. Got:\n{body}"
    );
    assert!(
        body.contains("construct_expr"),
        "error must name the missing field. Got:\n{body}"
    );
}

#[test]
fn capsule_wrapper_errors_when_host_type_empty() {
    let func = make_get_language_fn();
    let cfg = HostCapsuleTypeConfig {
        host_type: String::new(),
        package: String::new(),
        package_version: String::new(),
        construct_expr: "com.example.Language({ptr})".to_string(),
    };
    let mut body = String::new();
    emit_capsule_function_wrapper(&mut body, &func, "SampleBridge", &cfg);
    assert!(
        body.contains("ALEF ERROR"),
        "empty host_type must produce ALEF ERROR. Got:\n{body}"
    );
    assert!(
        body.contains("host_type"),
        "error must name the missing field. Got:\n{body}"
    );
}