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| author | XAMPPRocky <4464295+XAMPPRocky@users.noreply.github.com> | 2020-04-11 16:35:19 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-04-11 16:35:19 +0200 |
| commit | 32047903c78410d47ead0693ec15fc7c6f350229 (patch) | |
| tree | 322b98f8328f363d355cda03084fc39bf87ccf2c | |
| parent | 6364b4dbb4d2393a6bb51562b3f8d2fe2748f657 (diff) | |
| download | rust-32047903c78410d47ead0693ec15fc7c6f350229.tar.gz rust-32047903c78410d47ead0693ec15fc7c6f350229.zip | |
Update RELEASES.md
| -rw-r--r-- | RELEASES.md | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/RELEASES.md b/RELEASES.md index d181b0ece25..c1e4fcc4394 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -8,11 +8,22 @@ Language **Syntax only changes** - [Allow `type Foo: Ord` syntactically.][69361] -- [Unify item parsing & filter illegal item kinds.][69366] - [Fuse associated and extern items up to defaultness.][69194] - [Permit attributes on `if` expressions.][69201] - [Syntactically allow `self` in all `fn` contexts.][68764] - [Merge `fn` syntax + cleanup item parsing.][68728] +- [`item` macro fragments can be interpolated into `trait`s, `impl`s, and `extern` blocks.][69366] + For example, you may now write: + ```rust + macro_rules! mac_trait { + ($i:item) => { + trait T { $i } + } + } + mac_trait! { + fn foo() {} + } + ``` These are still rejected *semantically*, so you will likely receive an error but these changes can be seen and parsed by macros and @@ -79,7 +90,6 @@ Compatibility Notes has been a warning since 1.36.0. - [Fixed `Self` not having the correctly inferred type.][69340] This incorrectly led to some instances being accepted, and now correctly emits a hard error. -- [][] [69340]: https://github.com/rust-lang/rust/pull/69340 |