mikros/rust
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

add test offset of a field

Browse Source
This commit is contained in:
Aliénore Bouttefeux 2021-04-10 15:40:07 +02:00
parent 79666c8857
commit c288414757
2 changed files with 60 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/test/ui/lint/lint-deref-nullptr.rs
View File

@ -2,29 +2,37 @@
#![deny(deref_nullptr)]
use std::ptr;
struct Struct {
field: u8,
}
fn f() {
unsafe {
let a = 1;
let ub = *(a as *const i32);
let ub = *(0 as *const i32);
//~^ ERROR dereferencing a null pointer
let ub = *core::ptr::null::<i32>();
let ub = *ptr::null::<i32>();
//~^ ERROR dereferencing a null pointer
let ub = *core::ptr::null_mut::<i32>();
let ub = *ptr::null_mut::<i32>();
//~^ ERROR dereferencing a null pointer
let ub = *(core::ptr::null::<i16>() as *const i32);
let ub = *(ptr::null::<i16>() as *const i32);
//~^ ERROR dereferencing a null pointer
let ub = *(core::ptr::null::<i16>() as *mut i32 as *mut usize as *const u8);
let ub = *(ptr::null::<i16>() as *mut i32 as *mut usize as *const u8);
//~^ ERROR dereferencing a null pointer
let ub = &*core::ptr::null::<i32>();
let ub = &*ptr::null::<i32>();
//~^ ERROR dereferencing a null pointer
core::ptr::addr_of!(*core::ptr::null::<i32>());
ptr::addr_of!(*ptr::null::<i32>());
//~^ ERROR dereferencing a null pointer
std::ptr::addr_of_mut!(*core::ptr::null_mut::<i32>());
ptr::addr_of_mut!(*ptr::null_mut::<i32>());
//~^ ERROR dereferencing a null pointer
let ub = *std::ptr::null::<i32>();
let ub = *ptr::null::<i32>();
//~^ ERROR dereferencing a null pointer
let ub = *std::ptr::null_mut::<i32>();
let ub = *ptr::null_mut::<i32>();
//~^ ERROR dereferencing a null pointer
let offset = ptr::addr_of!((*ptr::null::<Struct>()).field);
//~^ ERROR dereferencing a null pointer
}
}

80
src/test/ui/lint/lint-deref-nullptr.stderr
View File

@ -1,5 +1,5 @@
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:9:18
--> $DIR/lint-deref-nullptr.rs:15:18
|
LL | let ub = *(0 as *const i32);
| ^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
@ -10,59 +10,65 @@ note: the lint level is defined here
LL | #![deny(deref_nullptr)]
| ^^^^^^^^^^^^^
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:11:18
|
LL | let ub = *core::ptr::null::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:13:18
|
LL | let ub = *core::ptr::null_mut::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:15:18
|
LL | let ub = *(core::ptr::null::<i16>() as *const i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:17:18
|
LL | let ub = *(core::ptr::null::<i16>() as *mut i32 as *mut usize as *const u8);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
LL | let ub = *ptr::null::<i32>();
| ^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:19:19
--> $DIR/lint-deref-nullptr.rs:19:18
|
LL | let ub = &*core::ptr::null::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
LL | let ub = *ptr::null_mut::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:21:29
--> $DIR/lint-deref-nullptr.rs:21:18
|
LL | core::ptr::addr_of!(*core::ptr::null::<i32>());
| ^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
LL | let ub = *(ptr::null::<i16>() as *const i32);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:23:32
--> $DIR/lint-deref-nullptr.rs:23:18
|
LL | std::ptr::addr_of_mut!(*core::ptr::null_mut::<i32>());
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
LL | let ub = *(ptr::null::<i16>() as *mut i32 as *mut usize as *const u8);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:25:18
--> $DIR/lint-deref-nullptr.rs:25:19
|
LL | let ub = *std::ptr::null::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
LL | let ub = &*ptr::null::<i32>();
| ^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:27:18
--> $DIR/lint-deref-nullptr.rs:27:23
|
LL | let ub = *std::ptr::null_mut::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
LL | ptr::addr_of!(*ptr::null::<i32>());
| ^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: aborting due to 10 previous errors
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:29:27
|
LL | ptr::addr_of_mut!(*ptr::null_mut::<i32>());
| ^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:31:18
|
LL | let ub = *ptr::null::<i32>();
| ^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:33:18
|
LL | let ub = *ptr::null_mut::<i32>();
| ^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: dereferencing a null pointer
--> $DIR/lint-deref-nullptr.rs:35:36
|
LL | let offset = ptr::addr_of!((*ptr::null::<Struct>()).field);
| ^^^^^^^^^^^^^^^^^^^^^^^^ this code causes undefined behavior when executed
error: aborting due to 11 previous errors