// A first "spike" for incremental compilation: here, we change the // content of the `make` function, and we find that we can reuse the // `y` module entirely (but not the `x` module). // revisions:rpass1 rpass2 // compile-flags: -Z query-dep-graph #![feature(rustc_attrs)] #![rustc_partition_reused(module="spike", cfg="rpass2")] #![rustc_partition_codegened(module="spike-x", cfg="rpass2")] #![rustc_partition_reused(module="spike-y", cfg="rpass2")] mod x { pub struct X { x: u32, y: u32, } #[cfg(rpass1)] fn make() -> X { X { x: 22, y: 0 } } #[cfg(rpass2)] fn make() -> X { X { x: 11, y: 11 } } pub fn new() -> X { make() } pub fn sum(x: &X) -> u32 { x.x + x.y } } mod y { use x; pub fn assert_sum() -> bool { let x = x::new(); x::sum(&x) == 22 } } pub fn main() { y::assert_sum(); }