diff options
| -rw-r--r-- | src/doc/rustc/src/lints/listing/deny-by-default.md | 9 | ||||
| -rw-r--r-- | src/librustc_session/lint/builtin.rs | 11 |
2 files changed, 20 insertions, 0 deletions
diff --git a/src/doc/rustc/src/lints/listing/deny-by-default.md b/src/doc/rustc/src/lints/listing/deny-by-default.md index 55714f8f454..dc5a9e44acf 100644 --- a/src/doc/rustc/src/lints/listing/deny-by-default.md +++ b/src/doc/rustc/src/lints/listing/deny-by-default.md @@ -45,6 +45,15 @@ error: defaults for type parameters are only allowed in `struct`, `enum`, `type` = note: for more information, see issue #36887 <https://github.com/rust-lang/rust/issues/36887> ``` +## missing-fragment-specifier + +The missing_fragment_specifier warning is issued when an unused pattern in a +`macro_rules!` macro definition has a meta-variable (e.g. `$e`) that is not +followed by a fragment specifier (e.g. `:expr`). + +This warning can always be fixed by removing the unused pattern in the +`macro_rules!` macro definition. + ## mutable-transmutes This lint catches transmuting from `&T` to `&mut T` because it is undefined diff --git a/src/librustc_session/lint/builtin.rs b/src/librustc_session/lint/builtin.rs index 2db4d2a7f51..144a06a4916 100644 --- a/src/librustc_session/lint/builtin.rs +++ b/src/librustc_session/lint/builtin.rs @@ -253,6 +253,16 @@ declare_lint! { } declare_lint! { + pub MISSING_FRAGMENT_SPECIFIER, + Deny, + "detects missing fragment specifiers in unused `macro_rules!` patterns", + @future_incompatible = FutureIncompatibleInfo { + reference: "issue #40107 <https://github.com/rust-lang/rust/issues/40107>", + edition: None, + }; +} + +declare_lint! { pub LATE_BOUND_LIFETIME_ARGUMENTS, Warn, "detects generic lifetime arguments in path segments with late bound lifetime parameters", @@ -574,6 +584,7 @@ declare_lint_pass! { UNALIGNED_REFERENCES, SAFE_PACKED_BORROWS, PATTERNS_IN_FNS_WITHOUT_BODY, + MISSING_FRAGMENT_SPECIFIER, LATE_BOUND_LIFETIME_ARGUMENTS, ORDER_DEPENDENT_TRAIT_OBJECTS, COHERENCE_LEAK_CHECK, |