diff options
Diffstat (limited to 'src/doc/rustc-dev-guide')
| -rw-r--r-- | src/doc/rustc-dev-guide/src/queries/incremental-compilation-in-detail.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/doc/rustc-dev-guide/src/queries/incremental-compilation-in-detail.md b/src/doc/rustc-dev-guide/src/queries/incremental-compilation-in-detail.md index 25db154fb90..d8716acdfff 100644 --- a/src/doc/rustc-dev-guide/src/queries/incremental-compilation-in-detail.md +++ b/src/doc/rustc-dev-guide/src/queries/incremental-compilation-in-detail.md @@ -413,8 +413,8 @@ respect to incremental compilation: even try to mark the query's dep-node as green. This attribute has two use cases: - - Queries that are **inputs** to the system must be marked as `eval_always` - since we have no other way of checking whether their value has changed. + - `eval_always` queries can read inputs (from files, global state, etc). + They can also produce side effects like writing to files and changing global state. - Some queries are very likely to be re-evaluated because their result depends on the entire source code. In this case `eval_always` can be used |