src/test/incremental/hashes/exported_vs_not.rs

   1 // build-pass (FIXME(62277): could be check-pass?)
   2 // revisions: cfail1 cfail2 cfail3
   3 // compile-flags: -Z query-dep-graph -Zincremental-ignore-spans
   4
   5 #![allow(warnings)]
   6 #![feature(rustc_attrs)]
   7 #![crate_type="rlib"]
   8
   9 // Case 1: The function body is not exported to metadata. If the body changes,
  10 //         the hash of the hir_owner_nodes node should change, but not the hash of
  11 //         either the hir_owner or the Metadata node.
  12
  13 #[cfg(cfail1)]
  14 pub fn body_not_exported_to_metadata() -> u32 {
  15     1
  16 }
  17
  18 #[cfg(not(cfail1))]
  19 #[rustc_clean(cfg="cfail2", except="hir_owner_nodes,mir_built,optimized_mir")]
  20 #[rustc_clean(cfg="cfail3")]
  21 pub fn body_not_exported_to_metadata() -> u32 {
  22     2
  23 }
  24
  25
  26
  27 // Case 2: The function body *is* exported to metadata because the function is
  28 //         marked as #[inline]. Only the hash of the hir_owner depnode should be
  29 //         unaffected by a change to the body.
  30
  31 #[cfg(cfail1)]
  32 #[inline]
  33 pub fn body_exported_to_metadata_because_of_inline() -> u32 {
  34     1
  35 }
  36
  37 #[cfg(not(cfail1))]
  38 #[rustc_clean(cfg="cfail2", except="hir_owner_nodes,mir_built,optimized_mir")]
  39 #[rustc_clean(cfg="cfail3")]
  40 #[inline]
  41 pub fn body_exported_to_metadata_because_of_inline() -> u32 {
  42     2
  43 }
  44
  45
  46
  47 // Case 2: The function body *is* exported to metadata because the function is
  48 //         generic. Only the hash of the hir_owner depnode should be
  49 //         unaffected by a change to the body.
  50
  51 #[cfg(cfail1)]
  52 #[inline]
  53 pub fn body_exported_to_metadata_because_of_generic() -> u32 {
  54     1
  55 }
  56
  57 #[cfg(not(cfail1))]
  58 #[rustc_clean(cfg="cfail2", except="hir_owner_nodes,mir_built,optimized_mir")]
  59 #[rustc_clean(cfg="cfail3")]
  60 #[inline]
  61 pub fn body_exported_to_metadata_because_of_generic() -> u32 {
  62     2
  63 }