use rustc_session::{declare_lint_pass, declare_tool_lint};
declare_clippy_lint! {
- /// **What it does:** Checks for calls to `std::mem::drop` with a reference
+ /// ### What it does
+ /// Checks for calls to `std::mem::drop` with a reference
/// instead of an owned value.
///
- /// **Why is this bad?** Calling `drop` on a reference will only drop the
+ /// ### Why is this bad?
+ /// Calling `drop` on a reference will only drop the
/// reference itself, which is a no-op. It will not call the `drop` method (from
/// the `Drop` trait implementation) on the underlying referenced value, which
/// is likely what was intended.
///
- /// **Known problems:** None.
- ///
- /// **Example:**
+ /// ### Example
/// ```ignore
/// let mut lock_guard = mutex.lock();
/// std::mem::drop(&lock_guard) // Should have been drop(lock_guard), mutex
}
declare_clippy_lint! {
- /// **What it does:** Checks for calls to `std::mem::forget` with a reference
+ /// ### What it does
+ /// Checks for calls to `std::mem::forget` with a reference
/// instead of an owned value.
///
- /// **Why is this bad?** Calling `forget` on a reference will only forget the
+ /// ### Why is this bad?
+ /// Calling `forget` on a reference will only forget the
/// reference itself, which is a no-op. It will not forget the underlying
/// referenced
/// value, which is likely what was intended.
///
- /// **Known problems:** None.
- ///
- /// **Example:**
+ /// ### Example
/// ```rust
/// let x = Box::new(1);
/// std::mem::forget(&x) // Should have been forget(x), x will still be dropped
}
declare_clippy_lint! {
- /// **What it does:** Checks for calls to `std::mem::drop` with a value
+ /// ### What it does
+ /// Checks for calls to `std::mem::drop` with a value
/// that derives the Copy trait
///
- /// **Why is this bad?** Calling `std::mem::drop` [does nothing for types that
+ /// ### Why is this bad?
+ /// Calling `std::mem::drop` [does nothing for types that
/// implement Copy](https://doc.rust-lang.org/std/mem/fn.drop.html), since the
/// value will be copied and moved into the function on invocation.
///
- /// **Known problems:** None.
- ///
- /// **Example:**
+ /// ### Example
/// ```rust
/// let x: i32 = 42; // i32 implements Copy
/// std::mem::drop(x) // A copy of x is passed to the function, leaving the
}
declare_clippy_lint! {
- /// **What it does:** Checks for calls to `std::mem::forget` with a value that
+ /// ### What it does
+ /// Checks for calls to `std::mem::forget` with a value that
/// derives the Copy trait
///
- /// **Why is this bad?** Calling `std::mem::forget` [does nothing for types that
+ /// ### Why is this bad?
+ /// Calling `std::mem::forget` [does nothing for types that
/// implement Copy](https://doc.rust-lang.org/std/mem/fn.drop.html) since the
/// value will be copied and moved into the function on invocation.
///
/// there
/// is nothing for `std::mem::forget` to ignore.
///
- /// **Known problems:** None.
- ///
- /// **Example:**
+ /// ### Example
/// ```rust
/// let x: i32 = 42; // i32 implements Copy
/// std::mem::forget(x) // A copy of x is passed to the function, leaving the