Function from

cranelift/interpreter/src/environment.rs:99–105

()

    #[test]
    fn from() {
        let name = UserFuncName::testcase("test");
        let signature = Signature::new(CallConv::Fast);
        let func = &Function::with_name_signature(name, signature);
        let env: FunctionStore = func.into();
        assert_eq!(env.index_of("%test"), Some(FuncIndex::from_u32(0)));
    }
}