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Expand test coverage for deny-inside-forbid interactions
1 parent e3c12d2 commit 43fc0c7

10 files changed

+188
-12
lines changed

‎tests/ui/lint/auxiliary/allow-macro.rs

+7
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@@ -0,0 +1,7 @@
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#[macro_export]
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macro_rules! emit_allow {
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() => {
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#[allow(unsafe_code)]
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let _so_safe = 0;
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};
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}

‎tests/ui/lint/auxiliary/forbid-macro.rs

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#[macro_export]
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macro_rules! emit_forbid {
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() => {
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#[forbid(unsafe_code)]
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let _so_safe = 0;
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};
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}

‎tests/ui/lint/auxiliary/warn-macro.rs

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#[macro_export]
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macro_rules! emit_warn {
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() => {
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#[warn(unsafe_code)]
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let _so_safe = 0;
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};
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}

‎tests/ui/lint/deny-inside-forbid-ignored.stderr ‎tests/ui/lint/deny-inside-forbid-ignored.cli_forbid.stderr

+4-4
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@@ -1,5 +1,5 @@
11
error[E0453]: allow(unsafe_code) incompatible with previous forbid
2-
--> $DIR/deny-inside-forbid-ignored.rs:8:17
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--> $DIR/deny-inside-forbid-ignored.rs:12:17
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|
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LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
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| ----------- `forbid` level set here
@@ -8,7 +8,7 @@ LL | #[allow(unsafe_code)] // let's have some unsafe code in here
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| ^^^^^^^^^^^ overruled by previous forbid
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1010
error[E0453]: allow(unsafe_code) incompatible with previous forbid
11-
--> $DIR/deny-inside-forbid-ignored.rs:8:17
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--> $DIR/deny-inside-forbid-ignored.rs:12:17
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|
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LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
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| ----------- `forbid` level set here
@@ -19,13 +19,13 @@ LL | #[allow(unsafe_code)] // let's have some unsafe code in here
1919
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
2020

2121
error: usage of an `unsafe` block
22-
--> $DIR/deny-inside-forbid-ignored.rs:12:13
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--> $DIR/deny-inside-forbid-ignored.rs:16:13
2323
|
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LL | unsafe { /* ≽^•⩊•^≼ */ }
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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|
2727
note: the lint level is defined here
28-
--> $DIR/deny-inside-forbid-ignored.rs:4:10
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--> $DIR/deny-inside-forbid-ignored.rs:8:10
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|
3030
LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
3131
| ^^^^^^^^^^^

‎tests/ui/lint/deny-inside-forbid-ignored.cli_forbid_warnings.stderr

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@@ -0,0 +1,35 @@
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error[E0453]: allow(unsafe_code) incompatible with previous forbid
2+
--> $DIR/deny-inside-forbid-ignored.rs:12:17
3+
|
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LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
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| ----------- `forbid` level set here
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...
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LL | #[allow(unsafe_code)] // let's have some unsafe code in here
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| ^^^^^^^^^^^ overruled by previous forbid
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error[E0453]: allow(unsafe_code) incompatible with previous forbid
11+
--> $DIR/deny-inside-forbid-ignored.rs:12:17
12+
|
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LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
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| ----------- `forbid` level set here
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...
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LL | #[allow(unsafe_code)] // let's have some unsafe code in here
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| ^^^^^^^^^^^ overruled by previous forbid
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|
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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error: usage of an `unsafe` block
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--> $DIR/deny-inside-forbid-ignored.rs:16:13
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|
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LL | unsafe { /* ≽^•⩊•^≼ */ }
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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|
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note: the lint level is defined here
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--> $DIR/deny-inside-forbid-ignored.rs:8:10
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|
30+
LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
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| ^^^^^^^^^^^
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error: aborting due to 3 previous errors
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35+
For more information about this error, try `rustc --explain E0453`.

‎tests/ui/lint/deny-inside-forbid-ignored.rs

+6-2
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,9 @@
1-
/// Ensure that using deny inside forbid is treated as a no-op,
2-
/// and does not override the level to deny.
1+
//! Ensure that using deny inside forbid is treated as a no-op, and does not override the level to
2+
//! deny.
3+
4+
//@ revisions: source_only cli_forbid cli_forbid_warnings
5+
//@[cli_forbid] compile-flags: -F unsafe_code
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//@[cli_forbid_warnings] compile-flags: -F warnings
37

48
#[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
59
fn main() {

‎tests/ui/lint/deny-inside-forbid-ignored.source_only.stderr

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1+
error[E0453]: allow(unsafe_code) incompatible with previous forbid
2+
--> $DIR/deny-inside-forbid-ignored.rs:12:17
3+
|
4+
LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
5+
| ----------- `forbid` level set here
6+
...
7+
LL | #[allow(unsafe_code)] // let's have some unsafe code in here
8+
| ^^^^^^^^^^^ overruled by previous forbid
9+
10+
error[E0453]: allow(unsafe_code) incompatible with previous forbid
11+
--> $DIR/deny-inside-forbid-ignored.rs:12:17
12+
|
13+
LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
14+
| ----------- `forbid` level set here
15+
...
16+
LL | #[allow(unsafe_code)] // let's have some unsafe code in here
17+
| ^^^^^^^^^^^ overruled by previous forbid
18+
|
19+
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
20+
21+
error: usage of an `unsafe` block
22+
--> $DIR/deny-inside-forbid-ignored.rs:16:13
23+
|
24+
LL | unsafe { /* ≽^•⩊•^≼ */ }
25+
| ^^^^^^^^^^^^^^^^^^^^^^^^
26+
|
27+
note: the lint level is defined here
28+
--> $DIR/deny-inside-forbid-ignored.rs:8:10
29+
|
30+
LL | #[forbid(unsafe_code)] // NO UNSAFE CODE IN HERE!!
31+
| ^^^^^^^^^^^
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error: aborting due to 3 previous errors
34+
35+
For more information about this error, try `rustc --explain E0453`.

‎tests/ui/lint/forbid-macro-with-deny.allow.stderr

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@@ -0,0 +1,26 @@
1+
error[E0453]: allow(unsafe_code) incompatible with previous forbid
2+
--> $DIR/forbid-macro-with-deny.rs:39:5
3+
|
4+
LL | #![forbid(unsafe_code)]
5+
| ----------- `forbid` level set here
6+
...
7+
LL | allow_macro::emit_allow! {}
8+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
9+
|
10+
= note: this error originates in the macro `allow_macro::emit_allow` (in Nightly builds, run with -Z macro-backtrace for more info)
11+
12+
error[E0453]: allow(unsafe_code) incompatible with previous forbid
13+
--> $DIR/forbid-macro-with-deny.rs:39:5
14+
|
15+
LL | #![forbid(unsafe_code)]
16+
| ----------- `forbid` level set here
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...
18+
LL | allow_macro::emit_allow! {}
19+
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
20+
|
21+
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
22+
= note: this error originates in the macro `allow_macro::emit_allow` (in Nightly builds, run with -Z macro-backtrace for more info)
23+
24+
error: aborting due to 2 previous errors
25+
26+
For more information about this error, try `rustc --explain E0453`.

‎tests/ui/lint/forbid-macro-with-deny.rs

+35-6
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@@ -1,16 +1,45 @@
1-
//@ aux-build:deny-macro.rs
2-
//@ check-pass
1+
//! Ensure that when a macro (or normal code) does `#[deny]` inside a `#[forbid]` context, no error
2+
//! is emitted, as both parties agree on the treatment of the lint.
3+
//!
4+
//! However, still emit an error if the macro does `#[allow]` or `#[warn]`.
35
4-
// Ensure that when a macro (or normal code) does #[deny] inside a #[forbid]
5-
// context, no error is emitted, as both parties agree on the treatment of the lint.
6+
//@ revisions: forbid deny warn allow
7+
//@[forbid] aux-build:forbid-macro.rs
8+
//@[deny] aux-build:deny-macro.rs
9+
//@[warn] aux-build:warn-macro.rs
10+
//@[allow] aux-build:allow-macro.rs
11+
12+
//@[forbid] check-pass
13+
//@[deny] check-pass
614

715
#![forbid(unsafe_code)]
816

17+
#[cfg(allow)]
18+
extern crate allow_macro;
19+
#[cfg(deny)]
920
extern crate deny_macro;
21+
#[cfg(forbid)]
22+
extern crate forbid_macro;
23+
#[cfg(warn)]
24+
extern crate warn_macro;
1025

1126
fn main() {
12-
deny_macro::emit_deny! {}
27+
#[cfg(forbid)]
28+
forbid_macro::emit_forbid! {} // OK
29+
30+
#[cfg(deny)]
31+
deny_macro::emit_deny! {} // OK
32+
33+
#[cfg(warn)]
34+
warn_macro::emit_warn! {}
35+
//[warn]~^ ERROR warn(unsafe_code) incompatible with previous forbid
36+
//[warn]~| ERROR warn(unsafe_code) incompatible with previous forbid
37+
38+
#[cfg(allow)]
39+
allow_macro::emit_allow! {}
40+
//[allow]~^ ERROR allow(unsafe_code) incompatible with previous forbid
41+
//[allow]~| ERROR allow(unsafe_code) incompatible with previous forbid
1342

14-
#[deny(unsafe_code)]
43+
#[deny(unsafe_code)] // OK
1544
let _ = 0;
1645
}

‎tests/ui/lint/forbid-macro-with-deny.warn.stderr

+26
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@@ -0,0 +1,26 @@
1+
error[E0453]: warn(unsafe_code) incompatible with previous forbid
2+
--> $DIR/forbid-macro-with-deny.rs:34:5
3+
|
4+
LL | #![forbid(unsafe_code)]
5+
| ----------- `forbid` level set here
6+
...
7+
LL | warn_macro::emit_warn! {}
8+
| ^^^^^^^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
9+
|
10+
= note: this error originates in the macro `warn_macro::emit_warn` (in Nightly builds, run with -Z macro-backtrace for more info)
11+
12+
error[E0453]: warn(unsafe_code) incompatible with previous forbid
13+
--> $DIR/forbid-macro-with-deny.rs:34:5
14+
|
15+
LL | #![forbid(unsafe_code)]
16+
| ----------- `forbid` level set here
17+
...
18+
LL | warn_macro::emit_warn! {}
19+
| ^^^^^^^^^^^^^^^^^^^^^^^^^ overruled by previous forbid
20+
|
21+
= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
22+
= note: this error originates in the macro `warn_macro::emit_warn` (in Nightly builds, run with -Z macro-backtrace for more info)
23+
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error: aborting due to 2 previous errors
25+
26+
For more information about this error, try `rustc --explain E0453`.

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