rust-clippy/tests/ui/no_effect.stderr
F3real 6b22bba902 Lint on underscore variable assignment
Fix tests after no_effect update

Add a drop testcase

Don't lint _ variables in macro expansion

Address review comments and update tests

Don't shadow unnecessary operation lint if no_effect is allowed

Revert shadowing change and remove no_effect allows

Update clippy_lints/src/no_effect.rs

Co-authored-by: Takayuki Nakata <f.seasons017@gmail.com>

Update clippy_lints/src/no_effect.rs

Co-authored-by: Takayuki Nakata <f.seasons017@gmail.com>

Address review comments
2021-10-20 00:39:28 +02:00

186 lines
3.6 KiB
Text

error: statement with no effect
--> $DIR/no_effect.rs:65:5
|
LL | 0;
| ^^
|
= note: `-D clippy::no-effect` implied by `-D warnings`
error: statement with no effect
--> $DIR/no_effect.rs:66:5
|
LL | s2;
| ^^^
error: statement with no effect
--> $DIR/no_effect.rs:67:5
|
LL | Unit;
| ^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:68:5
|
LL | Tuple(0);
| ^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:69:5
|
LL | Struct { field: 0 };
| ^^^^^^^^^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:70:5
|
LL | Struct { ..s };
| ^^^^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:71:5
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LL | Union { a: 0 };
| ^^^^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:72:5
|
LL | Enum::Tuple(0);
| ^^^^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:73:5
|
LL | Enum::Struct { field: 0 };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:74:5
|
LL | 5 + 6;
| ^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:75:5
|
LL | *&42;
| ^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:76:5
|
LL | &6;
| ^^^
error: statement with no effect
--> $DIR/no_effect.rs:77:5
|
LL | (5, 6, 7);
| ^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:78:5
|
LL | box 42;
| ^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:79:5
|
LL | ..;
| ^^^
error: statement with no effect
--> $DIR/no_effect.rs:80:5
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LL | 5..;
| ^^^^
error: statement with no effect
--> $DIR/no_effect.rs:81:5
|
LL | ..5;
| ^^^^
error: statement with no effect
--> $DIR/no_effect.rs:82:5
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LL | 5..6;
| ^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:83:5
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LL | 5..=6;
| ^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:84:5
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LL | [42, 55];
| ^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:85:5
|
LL | [42, 55][1];
| ^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:86:5
|
LL | (42, 55).1;
| ^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:87:5
|
LL | [42; 55];
| ^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:88:5
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LL | [42; 55][13];
| ^^^^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:90:5
|
LL | || x += 5;
| ^^^^^^^^^^
error: statement with no effect
--> $DIR/no_effect.rs:92:5
|
LL | FooString { s: s };
| ^^^^^^^^^^^^^^^^^^^
error: binding to `_` prefixed variable with no side-effect
--> $DIR/no_effect.rs:93:5
|
LL | let _unused = 1;
| ^^^^^^^^^^^^^^^^
|
= note: `-D clippy::no-effect-underscore-binding` implied by `-D warnings`
error: binding to `_` prefixed variable with no side-effect
--> $DIR/no_effect.rs:94:5
|
LL | let _penguin = || println!("Some helpful closure");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: binding to `_` prefixed variable with no side-effect
--> $DIR/no_effect.rs:95:5
|
LL | let _duck = Struct { field: 0 };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: binding to `_` prefixed variable with no side-effect
--> $DIR/no_effect.rs:96:5
|
LL | let _cat = [2, 4, 6, 8][2];
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 30 previous errors