| // Copyright 2012-2014 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. |
| |
| // Test that immediate callers have to change when callee changes, but |
| // not callers' callers. |
| |
| // compile-flags: -Z query-dep-graph |
| |
| #![feature(rustc_attrs)] |
| #![allow(dead_code)] |
| |
| fn main() { } |
| |
| mod x { |
| #[rustc_if_this_changed] |
| pub fn x() { } |
| } |
| |
| mod y { |
| use x; |
| |
| // These dependencies SHOULD exist: |
| #[rustc_then_this_would_need(TypeckTables)] //~ ERROR OK |
| pub fn y() { |
| x::x(); |
| } |
| } |
| |
| mod z { |
| use y; |
| |
| // These are expected to yield errors, because changes to `x` |
| // affect the BODY of `y`, but not its signature. |
| #[rustc_then_this_would_need(TypeckTables)] //~ ERROR no path |
| pub fn z() { |
| y::y(); |
| } |
| } |