[E0133] Use of unsafe code outside of unsafe function or block

[MahadMuhammad]

E0133 Use of unsafe code outside of unsafe function or block

Code tested from E0133

// https://doc.rust-lang.org/error_codes/E0133.html
unsafe fn f() { return; } // This is the unsafe code

fn main() {
    f(); // error: call to unsafe function requires unsafe function or block
}

---

Output:

➜  gccrs-build gcc/crab1 ../mahad-testsuite/E0133.rs                                          
../mahad-testsuite/E0133.rs:4:5: error: call to unsafe function requires unsafe function or block [E0133]
    4 |     f(); // error: call to unsafe function requires unsafe function or block
      |     ^

Analyzing compilation unit

Time variable                                   usr           sys          wall           GGC
 TOTAL                              :   0.00          0.00          0.00          146k
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.
➜  gccrs-build 

---

Running TestCases:

• These test cases are already added by Arthur.
• rust/compile/unsafe6.rs
• rust/compile/unsafe8.rs

➜  gccrs-build gcc/crab1 /home/mahad/Desktop/mahad/gccrs/gcc/testsuite/rust/compile/unsafe6.rs
/home/mahad/Desktop/mahad/gccrs/gcc/testsuite/rust/compile/unsafe6.rs:7:5: error: call to unsafe function requires unsafe function or block [E0133]
    7 |     foo(); // { dg-error "call to unsafe function" }
      |     ^~~
/home/mahad/Desktop/mahad/gccrs/gcc/testsuite/rust/compile/unsafe6.rs:8:5: error: call to unsafe function requires unsafe function or block [E0133]
    8 |     bar(); // { dg-error "call to unsafe function" }
      |     ^~~

Analyzing compilation unit

Time variable                                   usr           sys          wall           GGC
 TOTAL                              :   0.00          0.00          0.00          146k
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.

➜  gccrs-build gcc/crab1 /home/mahad/Desktop/mahad/gccrs/gcc/testsuite/rust/compile/unsafe8.rs                            
/home/mahad/Desktop/mahad/gccrs/gcc/testsuite/rust/compile/unsafe8.rs:9:5: error: call to unsafe method requires unsafe function or block [E0133]
    9 |     s.foo(); // { dg-error "call to unsafe method" }
      |     ^

Analyzing compilation unit

Time variable                                   usr           sys          wall           GGC
 TOTAL                              :   0.00          0.00          0.00          146k
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.

---

gcc/rust/ChangeLog:

* checks/errors/rust-unsafe-checker.cc (check_unsafe_call): called error function.

[philberty]

LGTM