Skip to content

Add run-rustfix for bool_comparison lint #3977

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Apr 17, 2019
Merged

Add run-rustfix for bool_comparison lint #3977

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
113 changes: 113 additions & 0 deletions tests/ui/bool_comparison.fixed
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,113 @@
// run-rustfix

#[warn(clippy::bool_comparison)]
fn main() {
let x = true;
if x {
"yes"
} else {
"no"
};
if !x {
"yes"
} else {
"no"
};
if x {
"yes"
} else {
"no"
};
if !x {
"yes"
} else {
"no"
};
if !x {
"yes"
} else {
"no"
};
if x {
"yes"
} else {
"no"
};
if !x {
"yes"
} else {
"no"
};
if x {
"yes"
} else {
"no"
};
if !x {
"yes"
} else {
"no"
};
if x {
"yes"
} else {
"no"
};
if x {
"yes"
} else {
"no"
};
if !x {
"yes"
} else {
"no"
};
let y = true;
if !x & y {
"yes"
} else {
"no"
};
if x & !y {
"yes"
} else {
"no"
};
}

#[allow(dead_code)]
fn issue3703() {
struct Foo;
impl PartialEq<bool> for Foo {
fn eq(&self, _: &bool) -> bool {
true
}
}
impl PartialEq<Foo> for bool {
fn eq(&self, _: &Foo) -> bool {
true
}
}
impl PartialOrd<bool> for Foo {
fn partial_cmp(&self, _: &bool) -> Option<std::cmp::Ordering> {
None
}
}
impl PartialOrd<Foo> for bool {
fn partial_cmp(&self, _: &Foo) -> Option<std::cmp::Ordering> {
None
}
}

if Foo == true {}
if true == Foo {}
if Foo != true {}
if true != Foo {}
if Foo == false {}
if false == Foo {}
if Foo != false {}
if false != Foo {}
if Foo < false {}
if false < Foo {}
}
2 changes: 2 additions & 0 deletions tests/ui/bool_comparison.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
// run-rustfix

#[warn(clippy::bool_comparison)]
fn main() {
let x = true;
Expand Down
28 changes: 14 additions & 14 deletions tests/ui/bool_comparison.stderr
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,85 +1,85 @@
error: equality checks against true are unnecessary
--> $DIR/bool_comparison.rs:4:8
--> $DIR/bool_comparison.rs:6:8
|
LL | if x == true {
| ^^^^^^^^^ help: try simplifying it as shown: `x`
|
= note: `-D clippy::bool-comparison` implied by `-D warnings`

error: equality checks against false can be replaced by a negation
--> $DIR/bool_comparison.rs:9:8
--> $DIR/bool_comparison.rs:11:8
|
LL | if x == false {
| ^^^^^^^^^^ help: try simplifying it as shown: `!x`

error: equality checks against true are unnecessary
--> $DIR/bool_comparison.rs:14:8
--> $DIR/bool_comparison.rs:16:8
|
LL | if true == x {
| ^^^^^^^^^ help: try simplifying it as shown: `x`

error: equality checks against false can be replaced by a negation
--> $DIR/bool_comparison.rs:19:8
--> $DIR/bool_comparison.rs:21:8
|
LL | if false == x {
| ^^^^^^^^^^ help: try simplifying it as shown: `!x`

error: inequality checks against true can be replaced by a negation
--> $DIR/bool_comparison.rs:24:8
--> $DIR/bool_comparison.rs:26:8
|
LL | if x != true {
| ^^^^^^^^^ help: try simplifying it as shown: `!x`

error: inequality checks against false are unnecessary
--> $DIR/bool_comparison.rs:29:8
--> $DIR/bool_comparison.rs:31:8
|
LL | if x != false {
| ^^^^^^^^^^ help: try simplifying it as shown: `x`

error: inequality checks against true can be replaced by a negation
--> $DIR/bool_comparison.rs:34:8
--> $DIR/bool_comparison.rs:36:8
|
LL | if true != x {
| ^^^^^^^^^ help: try simplifying it as shown: `!x`

error: inequality checks against false are unnecessary
--> $DIR/bool_comparison.rs:39:8
--> $DIR/bool_comparison.rs:41:8
|
LL | if false != x {
| ^^^^^^^^^^ help: try simplifying it as shown: `x`

error: less than comparison against true can be replaced by a negation
--> $DIR/bool_comparison.rs:44:8
--> $DIR/bool_comparison.rs:46:8
|
LL | if x < true {
| ^^^^^^^^ help: try simplifying it as shown: `!x`

error: greater than checks against false are unnecessary
--> $DIR/bool_comparison.rs:49:8
--> $DIR/bool_comparison.rs:51:8
|
LL | if false < x {
| ^^^^^^^^^ help: try simplifying it as shown: `x`

error: greater than checks against false are unnecessary
--> $DIR/bool_comparison.rs:54:8
--> $DIR/bool_comparison.rs:56:8
|
LL | if x > false {
| ^^^^^^^^^ help: try simplifying it as shown: `x`

error: less than comparison against true can be replaced by a negation
--> $DIR/bool_comparison.rs:59:8
--> $DIR/bool_comparison.rs:61:8
|
LL | if true > x {
| ^^^^^^^^ help: try simplifying it as shown: `!x`

error: order comparisons between booleans can be simplified
--> $DIR/bool_comparison.rs:65:8
--> $DIR/bool_comparison.rs:67:8
|
LL | if x < y {
| ^^^^^ help: try simplifying it as shown: `!x & y`

error: order comparisons between booleans can be simplified
--> $DIR/bool_comparison.rs:70:8
--> $DIR/bool_comparison.rs:72:8
|
LL | if x > y {
| ^^^^^ help: try simplifying it as shown: `x & !y`
Expand Down