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-rw-r--r--tests/incremental/spike.rs49
1 files changed, 49 insertions, 0 deletions
diff --git a/tests/incremental/spike.rs b/tests/incremental/spike.rs
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+// 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();
+}