UI test cleanup: Extract match_same_arms tests

This commit is contained in:
Philipp Hansch 2019-02-10 10:19:24 +01:00
parent 5725726345
commit 83a87fb7b6
No known key found for this signature in database
GPG Key ID: B6FA06A6E0E2665B
4 changed files with 499 additions and 479 deletions

View File

@ -5,7 +5,6 @@
clippy::eq_op,
clippy::needless_continue,
clippy::needless_return,
clippy::never_loop,
clippy::no_effect,
clippy::zero_divided_by_zero,
clippy::unused_unit
@ -16,64 +15,15 @@ fn foo() -> bool {
unimplemented!()
}
struct Foo {
bar: u8,
}
pub enum Abc {
A,
B,
C,
}
#[warn(clippy::if_same_then_else)]
#[warn(clippy::match_same_arms)]
#[allow(clippy::unused_unit)]
fn if_same_then_else() -> Result<&'static str, ()> {
if true {
Foo { bar: 42 };
0..10;
..;
0..;
..10;
0..=10;
foo();
} else {
//~ ERROR same body as `if` block
Foo { bar: 42 };
0..10;
..;
0..;
..10;
0..=10;
foo();
}
if true {
Foo { bar: 42 };
} else {
Foo { bar: 43 };
}
if true {
();
} else {
()
}
if true {
0..10;
} else {
0..=10;
}
if true {
foo();
foo();
} else {
foo();
}
fn match_same_arms() {
let _ = match 42 {
42 => {
foo();
@ -102,129 +52,6 @@ fn if_same_then_else() -> Result<&'static str, ()> {
_ => 0, //~ ERROR match arms have same body
};
if true {
foo();
}
let _ = if true {
42
} else {
//~ ERROR same body as `if` block
42
};
if true {
for _ in &[42] {
let foo: &Option<_> = &Some::<u8>(42);
if true {
break;
} else {
continue;
}
}
} else {
//~ ERROR same body as `if` block
for _ in &[42] {
let foo: &Option<_> = &Some::<u8>(42);
if true {
break;
} else {
continue;
}
}
}
if true {
let bar = if true { 42 } else { 43 };
while foo() {
break;
}
bar + 1;
} else {
//~ ERROR same body as `if` block
let bar = if true { 42 } else { 43 };
while foo() {
break;
}
bar + 1;
}
if true {
let _ = match 42 {
42 => 1,
a if a > 0 => 2,
10..=15 => 3,
_ => 4,
};
} else if false {
foo();
} else if foo() {
let _ = match 42 {
42 => 1,
a if a > 0 => 2,
10..=15 => 3,
_ => 4,
};
}
if true {
if let Some(a) = Some(42) {}
} else {
//~ ERROR same body as `if` block
if let Some(a) = Some(42) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
//~ ERROR same body as `if` block
if let (1, .., 3) = (1, 2, 3) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
if let (.., 3) = (1, 2, 3) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
if let (.., 4) = (1, 2, 3) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
if let (.., 1, 3) = (1, 2, 3) {}
}
if true {
if let Some(42) = None {}
} else {
if let Option::Some(42) = None {}
}
if true {
if let Some(42) = None::<u8> {}
} else {
if let Some(42) = None {}
}
if true {
if let Some(42) = None::<u8> {}
} else {
if let Some(42) = None::<u32> {}
}
if true {
if let Some(a) = Some(42) {}
} else {
if let Some(a) = Some(43) {}
}
let _ = match 42 {
42 => foo(),
51 => foo(), //~ ERROR match arms have same body
@ -271,33 +98,6 @@ fn if_same_then_else() -> Result<&'static str, ()> {
_ => 0,
};
let _ = if true {
0.0
} else {
//~ ERROR same body as `if` block
0.0
};
let _ = if true {
-0.0
} else {
//~ ERROR same body as `if` block
-0.0
};
let _ = if true { 0.0 } else { -0.0 };
// Different NaNs
let _ = if true { 0.0 / 0.0 } else { std::f32::NAN };
// Same NaNs
let _ = if true {
std::f32::NAN
} else {
//~ ERROR same body as `if` block
std::f32::NAN
};
let _ = match Some(()) {
Some(()) => 0.0,
None => -0.0,
@ -308,50 +108,6 @@ fn if_same_then_else() -> Result<&'static str, ()> {
(None, Some(a)) => bar(a), // bindings have different types
_ => (),
}
if true {
try!(Ok("foo"));
} else {
//~ ERROR same body as `if` block
try!(Ok("foo"));
}
if true {
let foo = "";
return Ok(&foo[0..]);
} else if false {
let foo = "bar";
return Ok(&foo[0..]);
} else {
let foo = "";
return Ok(&foo[0..]);
}
// false positive if_same_then_else, let(x,y) vs let(y,x), see #3559
if true {
let foo = "";
let (x, y) = (1, 2);
return Ok(&foo[x..y]);
} else {
let foo = "";
let (y, x) = (1, 2);
return Ok(&foo[x..y]);
}
}
fn main() {}
// Issue #2423. This was causing an ICE
fn func() {
if true {
f(&[0; 62]);
f(&[0; 4]);
f(&[0; 3]);
} else {
f(&[0; 62]);
f(&[0; 6]);
f(&[0; 6]);
}
}
fn f(val: &[u8]) {}

View File

@ -1,32 +1,5 @@
error: this `if` has identical blocks
--> $DIR/copies.rs:41:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | Foo { bar: 42 };
LL | | 0..10;
... |
LL | | foo();
LL | | }
| |_____^
|
= note: `-D clippy::if-same-then-else` implied by `-D warnings`
note: same as this
--> $DIR/copies.rs:33:13
|
LL | if true {
| _____________^
LL | | Foo { bar: 42 };
LL | | 0..10;
LL | | ..;
... |
LL | | foo();
LL | | } else {
| |_____^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:87:14
--> $DIR/copies.rs:37:14
|
LL | _ => {
| ______________^
@ -40,7 +13,7 @@ LL | | },
|
= note: `-D clippy::match-same-arms` implied by `-D warnings`
note: same as this
--> $DIR/copies.rs:78:15
--> $DIR/copies.rs:28:15
|
LL | 42 => {
| _______________^
@ -52,7 +25,7 @@ LL | | a
LL | | },
| |_________^
note: `42` has the same arm body as the `_` wildcard, consider removing it`
--> $DIR/copies.rs:78:15
--> $DIR/copies.rs:28:15
|
LL | 42 => {
| _______________^
@ -65,291 +38,106 @@ LL | | },
| |_________^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:102:14
--> $DIR/copies.rs:52:14
|
LL | _ => 0, //~ ERROR match arms have same body
| ^
|
note: same as this
--> $DIR/copies.rs:100:19
--> $DIR/copies.rs:50:19
|
LL | Abc::A => 0,
| ^
note: `Abc::A` has the same arm body as the `_` wildcard, consider removing it`
--> $DIR/copies.rs:100:19
--> $DIR/copies.rs:50:19
|
LL | Abc::A => 0,
| ^
error: this `if` has identical blocks
--> $DIR/copies.rs:111:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | 42
LL | | };
| |_____^
|
note: same as this
--> $DIR/copies.rs:109:21
|
LL | let _ = if true {
| _____________________^
LL | | 42
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:125:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | for _ in &[42] {
LL | | let foo: &Option<_> = &Some::<u8>(42);
... |
LL | | }
LL | | }
| |_____^
|
note: same as this
--> $DIR/copies.rs:116:13
|
LL | if true {
| _____________^
LL | | for _ in &[42] {
LL | | let foo: &Option<_> = &Some::<u8>(42);
LL | | if true {
... |
LL | | }
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:144:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | let bar = if true { 42 } else { 43 };
LL | |
... |
LL | | bar + 1;
LL | | }
| |_____^
|
note: same as this
--> $DIR/copies.rs:137:13
|
LL | if true {
| _____________^
LL | | let bar = if true { 42 } else { 43 };
LL | |
LL | | while foo() {
... |
LL | | bar + 1;
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:174:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | if let Some(a) = Some(42) {}
LL | | }
| |_____^
|
note: same as this
--> $DIR/copies.rs:172:13
|
LL | if true {
| _____________^
LL | | if let Some(a) = Some(42) {}
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:181:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | if let (1, .., 3) = (1, 2, 3) {}
LL | | }
| |_____^
|
note: same as this
--> $DIR/copies.rs:179:13
|
LL | if true {
| _____________^
LL | | if let (1, .., 3) = (1, 2, 3) {}
LL | | } else {
| |_____^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:230:15
--> $DIR/copies.rs:57:15
|
LL | 51 => foo(), //~ ERROR match arms have same body
| ^^^^^
|
note: same as this
--> $DIR/copies.rs:229:15
--> $DIR/copies.rs:56:15
|
LL | 42 => foo(),
| ^^^^^
note: consider refactoring into `42 | 51`
--> $DIR/copies.rs:229:15
--> $DIR/copies.rs:56:15
|
LL | 42 => foo(),
| ^^^^^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:236:17
--> $DIR/copies.rs:63:17
|
LL | None => 24, //~ ERROR match arms have same body
| ^^
|
note: same as this
--> $DIR/copies.rs:235:20
--> $DIR/copies.rs:62:20
|
LL | Some(_) => 24,
| ^^
note: consider refactoring into `Some(_) | None`
--> $DIR/copies.rs:235:20
--> $DIR/copies.rs:62:20
|
LL | Some(_) => 24,
| ^^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:258:28
--> $DIR/copies.rs:85:28
|
LL | (None, Some(a)) => bar(a), //~ ERROR match arms have same body
| ^^^^^^
|
note: same as this
--> $DIR/copies.rs:257:28
--> $DIR/copies.rs:84:28
|
LL | (Some(a), None) => bar(a),
| ^^^^^^
note: consider refactoring into `(Some(a), None) | (None, Some(a))`
--> $DIR/copies.rs:257:28
--> $DIR/copies.rs:84:28
|
LL | (Some(a), None) => bar(a),
| ^^^^^^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:264:26
--> $DIR/copies.rs:91:26
|
LL | (.., Some(a)) => bar(a), //~ ERROR match arms have same body
| ^^^^^^
|
note: same as this
--> $DIR/copies.rs:263:26
--> $DIR/copies.rs:90:26
|
LL | (Some(a), ..) => bar(a),
| ^^^^^^
note: consider refactoring into `(Some(a), ..) | (.., Some(a))`
--> $DIR/copies.rs:263:26
--> $DIR/copies.rs:90:26
|
LL | (Some(a), ..) => bar(a),
| ^^^^^^
error: this `match` has identical arm bodies
--> $DIR/copies.rs:270:20
--> $DIR/copies.rs:97:20
|
LL | (.., 3) => 42, //~ ERROR match arms have same body
| ^^
|
note: same as this
--> $DIR/copies.rs:269:23
--> $DIR/copies.rs:96:23
|
LL | (1, .., 3) => 42,
| ^^
note: consider refactoring into `(1, .., 3) | (.., 3)`
--> $DIR/copies.rs:269:23
--> $DIR/copies.rs:96:23
|
LL | (1, .., 3) => 42,
| ^^
error: this `if` has identical blocks
--> $DIR/copies.rs:276:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | 0.0
LL | | };
| |_____^
|
note: same as this
--> $DIR/copies.rs:274:21
|
LL | let _ = if true {
| _____________________^
LL | | 0.0
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:283:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | -0.0
LL | | };
| |_____^
|
note: same as this
--> $DIR/copies.rs:281:21
|
LL | let _ = if true {
| _____________________^
LL | | -0.0
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:296:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | std::f32::NAN
LL | | };
| |_____^
|
note: same as this
--> $DIR/copies.rs:294:21
|
LL | let _ = if true {
| _____________________^
LL | | std::f32::NAN
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/copies.rs:314:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | try!(Ok("foo"));
LL | | }
| |_____^
|
note: same as this
--> $DIR/copies.rs:312:13
|
LL | if true {
| _____________^
LL | | try!(Ok("foo"));
LL | | } else {
| |_____^
error: aborting due to 17 previous errors
error: aborting due to 7 previous errors

View File

@ -0,0 +1,262 @@
#![warn(clippy::if_same_then_else)]
#![allow(
clippy::blacklisted_name,
clippy::collapsible_if,
clippy::cyclomatic_complexity,
clippy::eq_op,
clippy::needless_return,
clippy::never_loop,
clippy::no_effect,
clippy::zero_divided_by_zero,
clippy::unused_unit,
)]
struct Foo {
bar: u8,
}
fn foo() -> bool {
unimplemented!()
}
fn if_same_then_else() -> Result<&'static str, ()> {
if true {
Foo { bar: 42 };
0..10;
..;
0..;
..10;
0..=10;
foo();
} else {
//~ ERROR same body as `if` block
Foo { bar: 42 };
0..10;
..;
0..;
..10;
0..=10;
foo();
}
if true {
Foo { bar: 42 };
} else {
Foo { bar: 43 };
}
if true {
();
} else {
()
}
if true {
0..10;
} else {
0..=10;
}
if true {
foo();
foo();
} else {
foo();
}
let _ = if true {
0.0
} else {
//~ ERROR same body as `if` block
0.0
};
let _ = if true {
-0.0
} else {
//~ ERROR same body as `if` block
-0.0
};
let _ = if true { 0.0 } else { -0.0 };
// Different NaNs
let _ = if true { 0.0 / 0.0 } else { std::f32::NAN };
if true {
foo();
}
let _ = if true {
42
} else {
//~ ERROR same body as `if` block
42
};
if true {
for _ in &[42] {
let foo: &Option<_> = &Some::<u8>(42);
if true {
break;
} else {
continue;
}
}
} else {
//~ ERROR same body as `if` block
for _ in &[42] {
let foo: &Option<_> = &Some::<u8>(42);
if true {
break;
} else {
continue;
}
}
}
if true {
let bar = if true { 42 } else { 43 };
while foo() {
break;
}
bar + 1;
} else {
//~ ERROR same body as `if` block
let bar = if true { 42 } else { 43 };
while foo() {
break;
}
bar + 1;
}
if true {
let _ = match 42 {
42 => 1,
a if a > 0 => 2,
10..=15 => 3,
_ => 4,
};
} else if false {
foo();
} else if foo() {
let _ = match 42 {
42 => 1,
a if a > 0 => 2,
10..=15 => 3,
_ => 4,
};
}
if true {
if let Some(a) = Some(42) {}
} else {
//~ ERROR same body as `if` block
if let Some(a) = Some(42) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
//~ ERROR same body as `if` block
if let (1, .., 3) = (1, 2, 3) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
if let (.., 3) = (1, 2, 3) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
if let (.., 4) = (1, 2, 3) {}
}
if true {
if let (1, .., 3) = (1, 2, 3) {}
} else {
if let (.., 1, 3) = (1, 2, 3) {}
}
if true {
if let Some(42) = None {}
} else {
if let Option::Some(42) = None {}
}
if true {
if let Some(42) = None::<u8> {}
} else {
if let Some(42) = None {}
}
if true {
if let Some(42) = None::<u8> {}
} else {
if let Some(42) = None::<u32> {}
}
if true {
if let Some(a) = Some(42) {}
} else {
if let Some(a) = Some(43) {}
}
// Same NaNs
let _ = if true {
std::f32::NAN
} else {
//~ ERROR same body as `if` block
std::f32::NAN
};
if true {
try!(Ok("foo"));
} else {
//~ ERROR same body as `if` block
try!(Ok("foo"));
}
if true {
let foo = "";
return Ok(&foo[0..]);
} else if false {
let foo = "bar";
return Ok(&foo[0..]);
} else {
let foo = "";
return Ok(&foo[0..]);
}
// false positive if_same_then_else, let(x,y) vs let(y,x), see #3559
if true {
let foo = "";
let (x, y) = (1, 2);
return Ok(&foo[x..y]);
} else {
let foo = "";
let (y, x) = (1, 2);
return Ok(&foo[x..y]);
}
}
// Issue #2423. This was causing an ICE
fn func() {
if true {
f(&[0; 62]);
f(&[0; 4]);
f(&[0; 3]);
} else {
f(&[0; 62]);
f(&[0; 6]);
f(&[0; 6]);
}
}
fn f(val: &[u8]) {}
fn main() {}

View File

@ -0,0 +1,214 @@
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:31:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | Foo { bar: 42 };
LL | | 0..10;
... |
LL | | foo();
LL | | }
| |_____^
|
= note: `-D clippy::if-same-then-else` implied by `-D warnings`
note: same as this
--> $DIR/if_same_then_else.rs:23:13
|
LL | if true {
| _____________^
LL | | Foo { bar: 42 };
LL | | 0..10;
LL | | ..;
... |
LL | | foo();
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:69:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | 0.0
LL | | };
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:67:21
|
LL | let _ = if true {
| _____________________^
LL | | 0.0
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:76:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | -0.0
LL | | };
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:74:21
|
LL | let _ = if true {
| _____________________^
LL | | -0.0
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:92:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | 42
LL | | };
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:90:21
|
LL | let _ = if true {
| _____________________^
LL | | 42
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:106:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | for _ in &[42] {
LL | | let foo: &Option<_> = &Some::<u8>(42);
... |
LL | | }
LL | | }
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:97:13
|
LL | if true {
| _____________^
LL | | for _ in &[42] {
LL | | let foo: &Option<_> = &Some::<u8>(42);
LL | | if true {
... |
LL | | }
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:125:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | let bar = if true { 42 } else { 43 };
LL | |
... |
LL | | bar + 1;
LL | | }
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:118:13
|
LL | if true {
| _____________^
LL | | let bar = if true { 42 } else { 43 };
LL | |
LL | | while foo() {
... |
LL | | bar + 1;
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:155:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | if let Some(a) = Some(42) {}
LL | | }
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:153:13
|
LL | if true {
| _____________^
LL | | if let Some(a) = Some(42) {}
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:162:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | if let (1, .., 3) = (1, 2, 3) {}
LL | | }
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:160:13
|
LL | if true {
| _____________^
LL | | if let (1, .., 3) = (1, 2, 3) {}
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:212:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | std::f32::NAN
LL | | };
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:210:21
|
LL | let _ = if true {
| _____________________^
LL | | std::f32::NAN
LL | | } else {
| |_____^
error: this `if` has identical blocks
--> $DIR/if_same_then_else.rs:219:12
|
LL | } else {
| ____________^
LL | | //~ ERROR same body as `if` block
LL | | try!(Ok("foo"));
LL | | }
| |_____^
|
note: same as this
--> $DIR/if_same_then_else.rs:217:13
|
LL | if true {
| _____________^
LL | | try!(Ok("foo"));
LL | | } else {
| |_____^
error: aborting due to 10 previous errors