From 6008f2c98276be3b880a5a75a0ac234cd866800e Mon Sep 17 00:00:00 2001 From: Aaron Turon Date: Wed, 11 Jun 2014 17:23:11 -0700 Subject: Add stability inheritance This commit makes several changes to the stability index infrastructure: * Stability levels are now inherited lexically, i.e., each item's stability level becomes the default for any nested items. * The computed stability level for an item is stored as part of the metadata. When using an item from an external crate, this data is looked up and cached. * The stability lint works from the computed stability level, rather than manual stability attribute annotations. However, the lint still checks only a limited set of item uses (e.g., it does not check every component of a path on import). This will be addressed in a later PR, as part of issue #8962. * The stability lint only applies to items originating from external crates, since the stability index is intended as a promise to downstream crates. * The "experimental" lint is now _allow_ by default. This is because almost all existing crates have been marked "experimental", pending library stabilization. With inheritance in place, this would generate a massive explosion of warnings for every Rust program. The lint should be changed back to deny-by-default after library stabilization is complete. * The "deprecated" lint still warns by default. The net result: we can begin tracking stability index for the standard libraries as we stabilize, without impacting most clients. Closes #13540. --- src/test/compile-fail/lint-output-format.rs | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) (limited to 'src/test/compile-fail/lint-output-format.rs') diff --git a/src/test/compile-fail/lint-output-format.rs b/src/test/compile-fail/lint-output-format.rs index ba4cf5d17fb..db60002b468 100644 --- a/src/test/compile-fail/lint-output-format.rs +++ b/src/test/compile-fail/lint-output-format.rs @@ -9,21 +9,10 @@ // except according to those terms. // compile-flags:-F experimental -D unstable +// aux-build:lint_output_format.rs -#[deprecated] -fn foo() -> uint { - 20 -} - -#[experimental] -fn bar() -> uint { - 40 -} - -#[unstable] -fn baz() -> uint { - 30 -} +extern crate lint_output_format; +use lint_output_format::{foo, bar, baz}; fn main() { let _x = foo(); //~ WARNING #[warn(deprecated)] on by default -- cgit 1.4.1-3-g733a5