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Add cross-crate tuple field count error test

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This commit is contained in:
Noah Lev 2021-08-21 12:29:11 -07:00
parent 02ed23c031
commit 08ceac8ee3
3 changed files with 613 additions and 0 deletions
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20
src/test/ui/pattern/auxiliary/declarations-for-tuple-field-count-errors.rs Normal file
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@ -0,0 +1,20 @@
pub struct Z0;
pub struct Z1();
pub struct S(pub u8, pub u8, pub u8);
pub struct M(
pub u8,
pub u8,
pub u8,
);
pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
pub enum E2 {
S(u8, u8, u8),
M(
u8,
u8,
u8,
),
}

57
src/test/ui/pattern/pat-tuple-field-count-cross.rs Normal file
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// aux-build:declarations-for-tuple-field-count-errors.rs
extern crate declarations_for_tuple_field_count_errors;
use declarations_for_tuple_field_count_errors::*;
fn main() {
match Z0 {
Z0() => {} //~ ERROR expected tuple struct or tuple variant, found unit struct `Z0`
Z0(x) => {} //~ ERROR expected tuple struct or tuple variant, found unit struct `Z0`
}
match Z1() {
Z1 => {} //~ ERROR match bindings cannot shadow tuple structs
Z1(x) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple struct has 0 fields
}
match S(1, 2, 3) {
S() => {} //~ ERROR this pattern has 0 fields, but the corresponding tuple struct has 3 fields
S(1) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple struct has 3 fields
S(xyz, abc) => {} //~ ERROR this pattern has 2 fields, but the corresponding tuple struct has 3 fields
S(1, 2, 3, 4) => {} //~ ERROR this pattern has 4 fields, but the corresponding tuple struct has 3 fields
}
match M(1, 2, 3) {
M() => {} //~ ERROR this pattern has 0 fields, but the corresponding tuple struct has 3 fields
M(1) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple struct has 3 fields
M(xyz, abc) => {} //~ ERROR this pattern has 2 fields, but the corresponding tuple struct has 3 fields
M(1, 2, 3, 4) => {} //~ ERROR this pattern has 4 fields, but the corresponding tuple struct has 3 fields
}
match E1::Z0 {
E1::Z0() => {} //~ ERROR expected tuple struct or tuple variant, found unit variant `E1::Z0`
E1::Z0(x) => {} //~ ERROR expected tuple struct or tuple variant, found unit variant `E1::Z0`
}
match E1::Z1() {
E1::Z1 => {} //~ ERROR expected unit struct, unit variant or constant, found tuple variant `E1::Z1`
E1::Z1(x) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple variant has 0 fields
}
match E1::S(1, 2, 3) {
E1::S() => {} //~ ERROR this pattern has 0 fields, but the corresponding tuple variant has 3 fields
E1::S(1) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple variant has 3 fields
E1::S(xyz, abc) => {} //~ ERROR this pattern has 2 fields, but the corresponding tuple variant has 3 fields
E1::S(1, 2, 3, 4) => {} //~ ERROR this pattern has 4 fields, but the corresponding tuple variant has 3 fields
}
match E2::S(1, 2, 3) {
E2::S() => {} //~ ERROR this pattern has 0 fields, but the corresponding tuple variant has 3 fields
E2::S(1) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple variant has 3 fields
E2::S(xyz, abc) => {} //~ ERROR this pattern has 2 fields, but the corresponding tuple variant has 3 fields
E2::S(1, 2, 3, 4) => {} //~ ERROR this pattern has 4 fields, but the corresponding tuple variant has 3 fields
}
match E2::M(1, 2, 3) {
E2::M() => {} //~ ERROR this pattern has 0 fields, but the corresponding tuple variant has 3 fields
E2::M(1) => {} //~ ERROR this pattern has 1 field, but the corresponding tuple variant has 3 fields
E2::M(xyz, abc) => {} //~ ERROR this pattern has 2 fields, but the corresponding tuple variant has 3 fields
E2::M(1, 2, 3, 4) => {} //~ ERROR this pattern has 4 fields, but the corresponding tuple variant has 3 fields
}
}

536
src/test/ui/pattern/pat-tuple-field-count-cross.stderr Normal file
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error[E0530]: match bindings cannot shadow tuple structs
--> $DIR/pat-tuple-field-count-cross.rs:13:9
|
LL | use declarations_for_tuple_field_count_errors::*;
| -------------------------------------------- the tuple struct `Z1` is imported here
...
LL | Z1 => {}
| ^^ cannot be named the same as a tuple struct
error[E0532]: expected tuple struct or tuple variant, found unit struct `Z0`
--> $DIR/pat-tuple-field-count-cross.rs:9:9
|
LL | Z0() => {}
| ^^^^
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:1:1
|
LL | pub struct Z0;
| -------------- `Z0` defined here
LL | pub struct Z1();
| ---------------- similarly named tuple struct `Z1` defined here
|
help: use this syntax instead
|
LL | Z0 => {}
| ~~
help: a tuple struct with a similar name exists
|
LL | Z1() => {}
| ~~
error[E0532]: expected tuple struct or tuple variant, found unit struct `Z0`
--> $DIR/pat-tuple-field-count-cross.rs:10:9
|
LL | Z0(x) => {}
| ^^^^^
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:1:1
|
LL | pub struct Z0;
| -------------- `Z0` defined here
LL | pub struct Z1();
| ---------------- similarly named tuple struct `Z1` defined here
|
help: use this syntax instead
|
LL | Z0 => {}
| ~~
help: a tuple struct with a similar name exists
|
LL | Z1(x) => {}
| ~~
error[E0532]: expected tuple struct or tuple variant, found unit variant `E1::Z0`
--> $DIR/pat-tuple-field-count-cross.rs:31:9
|
LL | E1::Z0() => {}
| ^^^^^^^^
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:15
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- ---- similarly named tuple variant `Z1` defined here
| |
| `E1::Z0` defined here
|
help: use this syntax instead
|
LL | E1::Z0 => {}
| ~~~~~~
help: a tuple variant with a similar name exists
|
LL | E1::Z1() => {}
| ~~
error[E0532]: expected tuple struct or tuple variant, found unit variant `E1::Z0`
--> $DIR/pat-tuple-field-count-cross.rs:32:9
|
LL | E1::Z0(x) => {}
| ^^^^^^^^^
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:15
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- ---- similarly named tuple variant `Z1` defined here
| |
| `E1::Z0` defined here
|
help: use this syntax instead
|
LL | E1::Z0 => {}
| ~~~~~~
help: a tuple variant with a similar name exists
|
LL | E1::Z1(x) => {}
| ~~
error[E0532]: expected unit struct, unit variant or constant, found tuple variant `E1::Z1`
--> $DIR/pat-tuple-field-count-cross.rs:35:9
|
LL | E1::Z1 => {}
| ^^^^^^
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:19
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- ---- `E1::Z1` defined here
| |
| similarly named unit variant `Z0` defined here
|
help: use the tuple variant pattern syntax instead
|
LL | E1::Z1(/* fields */) => {}
| ~~~~~~~~~~~~~~~~~~~~
help: a unit variant with a similar name exists
|
LL | E1::Z0 => {}
| ~~
error[E0023]: this pattern has 1 field, but the corresponding tuple struct has 0 fields
--> $DIR/pat-tuple-field-count-cross.rs:14:12
|
LL | Z1(x) => {}
| -- ^ expected 0 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:2:1
|
LL | pub struct Z1();
| ---------------- tuple struct has 0 fields
error[E0023]: this pattern has 0 fields, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:18:10
|
LL | S() => {}
| -^^ expected 3 fields, found 0
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:4:14
|
LL | pub struct S(pub u8, pub u8, pub u8);
| ------ ------ ------ tuple struct has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | S(_, _, _) => {}
| +++++++
help: use `..` to ignore all fields
|
LL | S(..) => {}
| ++
error[E0023]: this pattern has 1 field, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:19:11
|
LL | S(1) => {}
| - ^ expected 3 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:4:14
|
LL | pub struct S(pub u8, pub u8, pub u8);
| ------ ------ ------ tuple struct has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | S(1, _, _) => {}
| ++++++
help: use `..` to ignore the rest of the fields
|
LL | S(1, ..) => {}
| ++++
error[E0023]: this pattern has 2 fields, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:20:11
|
LL | S(xyz, abc) => {}
| - ^^^ ^^^ expected 3 fields, found 2
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:4:14
|
LL | pub struct S(pub u8, pub u8, pub u8);
| ------ ------ ------ tuple struct has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | S(xyz, abc, _) => {}
| +++
error[E0023]: this pattern has 4 fields, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:21:11
|
LL | S(1, 2, 3, 4) => {}
| - ^ ^ ^ ^ expected 3 fields, found 4
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:4:14
|
LL | pub struct S(pub u8, pub u8, pub u8);
| ------ ------ ------ tuple struct has 3 fields
error[E0023]: this pattern has 0 fields, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:24:10
|
LL | M() => {}
| -^^ expected 3 fields, found 0
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:5:1
|
LL | / pub struct M(
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------ tuple struct has 3 fields
LL | | );
| |__- tuple struct defined here
|
help: use `_` to explicitly ignore each field
|
LL | M(_, _, _) => {}
| +++++++
help: use `..` to ignore all fields
|
LL | M(..) => {}
| ++
error[E0023]: this pattern has 1 field, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:25:11
|
LL | M(1) => {}
| - ^ expected 3 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:5:1
|
LL | / pub struct M(
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------ tuple struct has 3 fields
LL | | );
| |__- tuple struct defined here
|
help: use `_` to explicitly ignore each field
|
LL | M(1, _, _) => {}
| ++++++
help: use `..` to ignore the rest of the fields
|
LL | M(1, ..) => {}
| ++++
error[E0023]: this pattern has 2 fields, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:26:11
|
LL | M(xyz, abc) => {}
| - ^^^ ^^^ expected 3 fields, found 2
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:5:1
|
LL | / pub struct M(
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------ tuple struct has 3 fields
LL | | );
| |__- tuple struct defined here
|
help: use `_` to explicitly ignore each field
|
LL | M(xyz, abc, _) => {}
| +++
error[E0023]: this pattern has 4 fields, but the corresponding tuple struct has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:27:11
|
LL | M(1, 2, 3, 4) => {}
| - ^ ^ ^ ^ expected 3 fields, found 4
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:5:1
|
LL | / pub struct M(
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------
LL | | pub u8,
| | ------ tuple struct has 3 fields
LL | | );
| |__- tuple struct defined here
error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 0 fields
--> $DIR/pat-tuple-field-count-cross.rs:36:16
|
LL | E1::Z1(x) => {}
| ------ ^ expected 0 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:19
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| ---- tuple variant has 0 fields
error[E0023]: this pattern has 0 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:39:14
|
LL | E1::S() => {}
| -----^^ expected 3 fields, found 0
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:27
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- -- -- tuple variant has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | E1::S(_, _, _) => {}
| +++++++
help: use `..` to ignore all fields
|
LL | E1::S(..) => {}
| ++
error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:40:15
|
LL | E1::S(1) => {}
| ----- ^ expected 3 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:27
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- -- -- tuple variant has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | E1::S(1, _, _) => {}
| ++++++
help: use `..` to ignore the rest of the fields
|
LL | E1::S(1, ..) => {}
| ++++
error[E0023]: this pattern has 2 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:41:15
|
LL | E1::S(xyz, abc) => {}
| ----- ^^^ ^^^ expected 3 fields, found 2
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:27
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- -- -- tuple variant has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | E1::S(xyz, abc, _) => {}
| +++
error[E0023]: this pattern has 4 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:42:15
|
LL | E1::S(1, 2, 3, 4) => {}
| ----- ^ ^ ^ ^ expected 3 fields, found 4
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:11:27
|
LL | pub enum E1 { Z0, Z1(), S(u8, u8, u8) }
| -- -- -- tuple variant has 3 fields
error[E0023]: this pattern has 0 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:46:14
|
LL | E2::S() => {}
| -----^^ expected 3 fields, found 0
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:14:7
|
LL | S(u8, u8, u8),
| -- -- -- tuple variant has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | E2::S(_, _, _) => {}
| +++++++
help: use `..` to ignore all fields
|
LL | E2::S(..) => {}
| ++
error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:47:15
|
LL | E2::S(1) => {}
| ----- ^ expected 3 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:14:7
|
LL | S(u8, u8, u8),
| -- -- -- tuple variant has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | E2::S(1, _, _) => {}
| ++++++
help: use `..` to ignore the rest of the fields
|
LL | E2::S(1, ..) => {}
| ++++
error[E0023]: this pattern has 2 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:48:15
|
LL | E2::S(xyz, abc) => {}
| ----- ^^^ ^^^ expected 3 fields, found 2
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:14:7
|
LL | S(u8, u8, u8),
| -- -- -- tuple variant has 3 fields
|
help: use `_` to explicitly ignore each field
|
LL | E2::S(xyz, abc, _) => {}
| +++
error[E0023]: this pattern has 4 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:49:15
|
LL | E2::S(1, 2, 3, 4) => {}
| ----- ^ ^ ^ ^ expected 3 fields, found 4
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:14:7
|
LL | S(u8, u8, u8),
| -- -- -- tuple variant has 3 fields
error[E0023]: this pattern has 0 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:52:14
|
LL | E2::M() => {}
| -----^^ expected 3 fields, found 0
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:15:5
|
LL | / M(
LL | | u8,
| | --
LL | | u8,
| | --
LL | | u8,
| | -- tuple variant has 3 fields
LL | | ),
| |_____- tuple variant defined here
|
help: use `_` to explicitly ignore each field
|
LL | E2::M(_, _, _) => {}
| +++++++
help: use `..` to ignore all fields
|
LL | E2::M(..) => {}
| ++
error[E0023]: this pattern has 1 field, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:53:15
|
LL | E2::M(1) => {}
| ----- ^ expected 3 fields, found 1
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:15:5
|
LL | / M(
LL | | u8,
| | --
LL | | u8,
| | --
LL | | u8,
| | -- tuple variant has 3 fields
LL | | ),
| |_____- tuple variant defined here
|
help: use `_` to explicitly ignore each field
|
LL | E2::M(1, _, _) => {}
| ++++++
help: use `..` to ignore the rest of the fields
|
LL | E2::M(1, ..) => {}
| ++++
error[E0023]: this pattern has 2 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:54:15
|
LL | E2::M(xyz, abc) => {}
| ----- ^^^ ^^^ expected 3 fields, found 2
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:15:5
|
LL | / M(
LL | | u8,
| | --
LL | | u8,
| | --
LL | | u8,
| | -- tuple variant has 3 fields
LL | | ),
| |_____- tuple variant defined here
|
help: use `_` to explicitly ignore each field
|
LL | E2::M(xyz, abc, _) => {}
| +++
error[E0023]: this pattern has 4 fields, but the corresponding tuple variant has 3 fields
--> $DIR/pat-tuple-field-count-cross.rs:55:15
|
LL | E2::M(1, 2, 3, 4) => {}
| ----- ^ ^ ^ ^ expected 3 fields, found 4
|
::: $DIR/auxiliary/declarations-for-tuple-field-count-errors.rs:15:5
|
LL | / M(
LL | | u8,
| | --
LL | | u8,
| | --
LL | | u8,
| | -- tuple variant has 3 fields
LL | | ),
| |_____- tuple variant defined here
error: aborting due to 28 previous errors
Some errors have detailed explanations: E0023, E0530, E0532.
For more information about an error, try `rustc --explain E0023`.