Commit 1e686f1

committed

Add test for unnecessary_refs lint

1 parent d297ee4 commit 1e686f1Copy full SHA for 1e686f1

File tree

+51

-0

lines changed

+51

-0

lines changed

Lines changed: 2 additions & 0 deletions

Lines changed: 18 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,18 @@`
	`1`	`+#![deny(unnecessary_refs)]`
	`2`	`+`
	`3`	`+struct A {`
	`4`	`+ a: i32,`
	`5`	`+ b: u8,`
	`6`	`+}`
	`7`	`+`
	`8`	`+fn via_ref(x: const (i32, i32)) -> const i32 {`
	`9`	`+ unsafe { &(x).0 as const i32 }`
	`10`	`+ //~^ ERROR creating unecessary reference is discouraged [unnecessary_refs]`
	`11`	`+}`
	`12`	`+`
	`13`	`+fn via_ref_struct(x: const A) -> const u8 {`
	`14`	`+ unsafe { &(x).b as const u8 }`
	`15`	`+ //~^ ERROR creating unecessary reference is discouraged [unnecessary_refs]`
	`16`	`+}`
	`17`	`+`
	`18`	`+fn main() {}`

Lines changed: 31 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,31 @@`
	`1`	`+error: creating unecessary reference is discouraged`
	`2`	`+ --> $DIR/lint-unnecessary-refs.rs:9:14`
	`3`	`+ \|`
	`4`	`+LL \| unsafe { &(x).0 as const i32 }`
	`5`	`+ \| ^^^^^^^^^^^^^^^^^^^^^`
	`6`	`+ \|`
	`7`	`+note: the lint level is defined here`
	`8`	`+ --> $DIR/lint-unnecessary-refs.rs:1:9`
	`9`	`+ \|`
	`10`	`+LL \| #![deny(unnecessary_refs)]`
	`11`	`+ \| ^^^^^^^^^^^^^^^^`
	`12`	+help: consider using `&raw const` for a safer and more explicit raw pointer
	`13`	`+ \|`
	`14`	`+LL - unsafe { &(x).0 as const i32 }`
	`15`	`+LL + unsafe { &raw const (*x).0 }`
	`16`	`+ \|`
	`17`	`+`
	`18`	`+error: creating unecessary reference is discouraged`
	`19`	`+ --> $DIR/lint-unnecessary-refs.rs:14:14`
	`20`	`+ \|`
	`21`	`+LL \| unsafe { &(x).b as const u8 }`
	`22`	`+ \| ^^^^^^^^^^^^^^^^^^^^`
	`23`	`+ \|`
	`24`	+help: consider using `&raw const` for a safer and more explicit raw pointer
	`25`	`+ \|`
	`26`	`+LL - unsafe { &(x).b as const u8 }`
	`27`	`+LL + unsafe { &raw const (*x).b }`
	`28`	`+ \|`
	`29`	`+`
	`30`	`+error: aborting due to 2 previous errors`
	`31`	`+`

Comments

(0)