diff --git a/tests/ui/coverage-attr/bad-syntax.rs b/tests/ui/coverage-attr/bad-syntax.rs index 8783714992b75..127179877e55a 100644 --- a/tests/ui/coverage-attr/bad-syntax.rs +++ b/tests/ui/coverage-attr/bad-syntax.rs @@ -3,13 +3,13 @@ // Tests the error messages produced (or not produced) by various unusual // uses of the `#[coverage(..)]` attribute. -// FIXME(#84605): Multiple coverage attributes with the same value are useless, +// FIXME(#126658): Multiple coverage attributes with the same value are useless, // and should probably produce a diagnostic. #[coverage(off)] #[coverage(off)] fn multiple_consistent() {} -// FIXME(#84605): When there are multiple inconsistent coverage attributes, +// FIXME(#126658): When there are multiple inconsistent coverage attributes, // it's unclear which one will prevail. #[coverage(off)] #[coverage(on)] @@ -18,7 +18,7 @@ fn multiple_inconsistent() {} #[coverage] //~ ERROR expected `coverage(off)` or `coverage(on)` fn bare_word() {} -// FIXME(#84605): This shows as multiple different errors, one of which suggests +// FIXME(#126658): This shows as multiple different errors, one of which suggests // writing bare `#[coverage]`, which is not allowed. #[coverage = true] //~^ ERROR expected `coverage(off)` or `coverage(on)` @@ -48,7 +48,7 @@ fn bogus_word_after() {} #[coverage(off,)] fn comma_after() {} -// FIXME(#84605): This shows as multiple different errors. +// FIXME(#126658): This shows as multiple different errors. #[coverage(,off)] //~^ ERROR expected identifier, found `,` //~| HELP remove this comma diff --git a/tests/ui/coverage-attr/name-value.rs b/tests/ui/coverage-attr/name-value.rs new file mode 100644 index 0000000000000..24c329780c59c --- /dev/null +++ b/tests/ui/coverage-attr/name-value.rs @@ -0,0 +1,64 @@ +#![feature(coverage_attribute)] +//@ edition: 2021 + +// Demonstrates the diagnostics produced when using the syntax +// `#[coverage = "off"]`, which should not be allowed. +// +// The syntax is tested both in places that can have a coverage attribute, +// and in places that cannot have a coverage attribute, to demonstrate the +// interaction between multiple errors. + +// FIXME(#126658): The error messages for using this syntax are inconsistent +// with the error message in other cases. They also sometimes appear together +// with other errors, and they suggest using the incorrect `#[coverage]` syntax. + +#[coverage = "off"] //~ ERROR malformed `coverage` attribute input +mod my_mod {} + +mod my_mod_inner { + #![coverage = "off"] //~ ERROR malformed `coverage` attribute input +} + +#[coverage = "off"] +//~^ ERROR `#[coverage]` must be applied to coverable code +//~| ERROR malformed `coverage` attribute input +struct MyStruct; + +#[coverage = "off"] //~ ERROR malformed `coverage` attribute input +impl MyStruct { + #[coverage = "off"] + //~^ ERROR `#[coverage]` must be applied to coverable code + //~| ERROR malformed `coverage` attribute input + const X: u32 = 7; +} + +#[coverage = "off"] //~ ERROR malformed `coverage` attribute input +trait MyTrait { + #[coverage = "off"] + //~^ ERROR `#[coverage]` must be applied to coverable code + //~| ERROR malformed `coverage` attribute input + const X: u32; + + #[coverage = "off"] + //~^ ERROR `#[coverage]` must be applied to coverable code + //~| ERROR malformed `coverage` attribute input + type T; +} + +#[coverage = "off"] //~ ERROR malformed `coverage` attribute input +impl MyTrait for MyStruct { + #[coverage = "off"] + //~^ ERROR `#[coverage]` must be applied to coverable code + //~| ERROR malformed `coverage` attribute input + const X: u32 = 8; + + #[coverage = "off"] + //~^ ERROR `#[coverage]` must be applied to coverable code + //~| ERROR malformed `coverage` attribute input + type T = (); +} + +#[coverage = "off"] +//~^ ERROR expected `coverage(off)` or `coverage(on)` +//~| ERROR malformed `coverage` attribute input +fn main() {} diff --git a/tests/ui/coverage-attr/name-value.stderr b/tests/ui/coverage-attr/name-value.stderr new file mode 100644 index 0000000000000..90bc3a3b53b3e --- /dev/null +++ b/tests/ui/coverage-attr/name-value.stderr @@ -0,0 +1,219 @@ +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:15:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | ~~~~~~~~~~~~~~~~~~~ +LL | #[coverage] + | ~~~~~~~~~~~ + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:19:5 + | +LL | #![coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #![coverage(on|off)] + | ~~~~~~~~~~~~~~~~~~~~ +LL | #![coverage] + | ~~~~~~~~~~~~ + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:22:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:29:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:27:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | ~~~~~~~~~~~~~~~~~~~ +LL | #[coverage] + | ~~~~~~~~~~~ + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:37:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:42:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:35:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | ~~~~~~~~~~~~~~~~~~~ +LL | #[coverage] + | ~~~~~~~~~~~ + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:50:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:55:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:48:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | ~~~~~~~~~~~~~~~~~~~ +LL | #[coverage] + | ~~~~~~~~~~~ + +error: malformed `coverage` attribute input + --> $DIR/name-value.rs:61:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + | +help: the following are the possible correct uses + | +LL | #[coverage(on|off)] + | +LL | #[coverage] + | + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/name-value.rs:22:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ +... +LL | struct MyStruct; + | ---------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/name-value.rs:37:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ +... +LL | const X: u32; + | ------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/name-value.rs:42:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ +... +LL | type T; + | ------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/name-value.rs:29:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ +... +LL | const X: u32 = 7; + | ----------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/name-value.rs:50:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ +... +LL | const X: u32 = 8; + | ----------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/name-value.rs:55:5 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ +... +LL | type T = (); + | ------------ not coverable code + +error: expected `coverage(off)` or `coverage(on)` + --> $DIR/name-value.rs:61:1 + | +LL | #[coverage = "off"] + | ^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 19 previous errors + +For more information about this error, try `rustc --explain E0788`. diff --git a/tests/ui/coverage-attr/word-only.rs b/tests/ui/coverage-attr/word-only.rs new file mode 100644 index 0000000000000..5c723b1b6b61e --- /dev/null +++ b/tests/ui/coverage-attr/word-only.rs @@ -0,0 +1,54 @@ +#![feature(coverage_attribute)] +//@ edition: 2021 + +// Demonstrates the diagnostics produced when using the syntax `#[coverage]`, +// which should not be allowed. +// +// The syntax is tested both in places that can have a coverage attribute, +// and in places that cannot have a coverage attribute, to demonstrate the +// interaction between multiple errors. + +// FIXME(#126658): The error messages for using this syntax give the impression +// that it is legal, even though it should never be legal. + +// FIXME(#126658): This is silently allowed, but should not be. +#[coverage] +mod my_mod {} + +// FIXME(#126658): This is silently allowed, but should not be. +mod my_mod_inner { + #![coverage] +} + +#[coverage] //~ ERROR `#[coverage]` must be applied to coverable code +struct MyStruct; + +// FIXME(#126658): This is silently allowed, but should not be. +#[coverage] +impl MyStruct { + #[coverage] //~ ERROR `#[coverage]` must be applied to coverable code + const X: u32 = 7; +} + +// FIXME(#126658): This is silently allowed, but should not be. +#[coverage] +trait MyTrait { + #[coverage] //~ ERROR `#[coverage]` must be applied to coverable code + const X: u32; + + #[coverage] //~ ERROR `#[coverage]` must be applied to coverable code + type T; +} + +// FIXME(#126658): This is silently allowed, but should not be. +#[coverage] +impl MyTrait for MyStruct { + #[coverage] //~ ERROR `#[coverage]` must be applied to coverable code + const X: u32 = 8; + + #[coverage] //~ ERROR `#[coverage]` must be applied to coverable code + type T = (); +} + +#[coverage] //~ ERROR expected `coverage(off)` or `coverage(on)` +fn main() {} diff --git a/tests/ui/coverage-attr/word-only.stderr b/tests/ui/coverage-attr/word-only.stderr new file mode 100644 index 0000000000000..bcafc23bc8d7d --- /dev/null +++ b/tests/ui/coverage-attr/word-only.stderr @@ -0,0 +1,57 @@ +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/word-only.rs:23:1 + | +LL | #[coverage] + | ^^^^^^^^^^^ +LL | struct MyStruct; + | ---------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/word-only.rs:36:5 + | +LL | #[coverage] + | ^^^^^^^^^^^ +LL | const X: u32; + | ------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/word-only.rs:39:5 + | +LL | #[coverage] + | ^^^^^^^^^^^ +LL | type T; + | ------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/word-only.rs:29:5 + | +LL | #[coverage] + | ^^^^^^^^^^^ +LL | const X: u32 = 7; + | ----------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/word-only.rs:46:5 + | +LL | #[coverage] + | ^^^^^^^^^^^ +LL | const X: u32 = 8; + | ----------------- not coverable code + +error[E0788]: `#[coverage]` must be applied to coverable code + --> $DIR/word-only.rs:49:5 + | +LL | #[coverage] + | ^^^^^^^^^^^ +LL | type T = (); + | ------------ not coverable code + +error: expected `coverage(off)` or `coverage(on)` + --> $DIR/word-only.rs:53:1 + | +LL | #[coverage] + | ^^^^^^^^^^^ + +error: aborting due to 7 previous errors + +For more information about this error, try `rustc --explain E0788`.