98 lines
2.1 KiB
Rust
98 lines
2.1 KiB
Rust
#![warn(clippy::undocumented_unsafe_blocks, clippy::unnecessary_safety_comment)]
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#![allow(clippy::let_unit_value, clippy::missing_safety_doc, clippy::needless_if)]
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mod unsafe_items_invalid_comment {
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// SAFETY:
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const CONST: u32 = 0;
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//~^ ERROR: constant item has unnecessary safety comment
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// SAFETY:
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static STATIC: u32 = 0;
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//~^ ERROR: static item has unnecessary safety comment
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// SAFETY:
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struct Struct;
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//~^ ERROR: struct has unnecessary safety comment
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// SAFETY:
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enum Enum {}
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//~^ ERROR: enum has unnecessary safety comment
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// SAFETY:
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mod module {}
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//~^ ERROR: module has unnecessary safety comment
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}
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mod unnecessary_from_macro {
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trait T {}
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macro_rules! no_safety_comment {
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($t:ty) => {
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impl T for $t {}
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};
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}
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// FIXME: This is not caught
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// Safety: unnecessary
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no_safety_comment!(());
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macro_rules! with_safety_comment {
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($t:ty) => {
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// Safety: unnecessary
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impl T for $t {}
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};
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}
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with_safety_comment!(i32);
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}
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fn unnecessary_on_stmt_and_expr() -> u32 {
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// SAFETY: unnecessary
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let num = 42;
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//~^ ERROR: statement has unnecessary safety comment
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// SAFETY: unnecessary
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if num > 24 {}
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//~^ ERROR: statement has unnecessary safety comment
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// SAFETY: unnecessary
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24
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//~^ ERROR: expression has unnecessary safety comment
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}
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mod issue_10084 {
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unsafe fn bar() -> i32 {
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42
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}
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macro_rules! foo {
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() => {
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// SAFETY: This is necessary
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unsafe { bar() }
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};
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}
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fn main() {
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foo!();
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}
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}
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mod issue_12048 {
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pub const X: u8 = 0;
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/// Returns a pointer to five.
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///
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/// # Examples
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///
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/// ```
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/// use foo::point_to_five;
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///
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/// let five_pointer = point_to_five();
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/// // Safety: this pointer always points to a valid five.
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/// let five = unsafe { *five_pointer };
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/// assert_eq!(five, 5);
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/// ```
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pub fn point_to_five() -> *const u8 {
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static FIVE: u8 = 5;
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&FIVE
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}
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}
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fn main() {}
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