| // Copyright 2013 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| use std::num::FromPrimitive; |
| use std::isize; |
| |
| #[derive(FromPrimitive)] |
| struct A { x: isize } |
| //~^^ ERROR `FromPrimitive` cannot be derived for structs |
| //~^^^ ERROR `FromPrimitive` cannot be derived for structs |
| |
| #[derive(FromPrimitive)] |
| struct B(isize); |
| //~^^ ERROR `FromPrimitive` cannot be derived for structs |
| //~^^^ ERROR `FromPrimitive` cannot be derived for structs |
| |
| #[derive(FromPrimitive)] |
| enum C { Foo(isize), Bar(usize) } |
| //~^^ ERROR `FromPrimitive` cannot be derived for enums with non-unit variants |
| //~^^^ ERROR `FromPrimitive` cannot be derived for enums with non-unit variants |
| |
| #[derive(FromPrimitive)] |
| enum D { Baz { x: isize } } |
| //~^^ ERROR `FromPrimitive` cannot be derived for enums with non-unit variants |
| //~^^^ ERROR `FromPrimitive` cannot be derived for enums with non-unit variants |
| |
| pub fn main() {} |
