Add a test with a struct containing a String.
This commit is contained in:
Chris Emerson
parent
fcdce8fc1d
commit
dcaaab3801
|
|
@ -37,7 +37,9 @@ enum DropEnum {
|
|||
impl Drop for DropEnum {
|
||||
fn drop(&mut self) {}
|
||||
}
|
||||
|
||||
struct FooString {
|
||||
s: String,
|
||||
}
|
||||
union Union {
|
||||
a: u8,
|
||||
b: f64,
|
||||
|
|
@ -79,6 +81,8 @@ fn main() {
|
|||
[42; 55][13];
|
||||
let mut x = 0;
|
||||
|| x += 5;
|
||||
let s: String = "foo".into();
|
||||
FooString { s: s };
|
||||
|
||||
// Do not warn
|
||||
get_number();
|
||||
|
|
@ -108,6 +112,7 @@ fn main() {
|
|||
[get_number(); 55];
|
||||
[42; 55][get_number() as usize];
|
||||
{get_number()};
|
||||
FooString { s: String::from("blah"), };
|
||||
|
||||
// Do not warn
|
||||
DropTuple(get_number());
|
||||
|
|
|
|||
|
|
@ -1,268 +1,280 @@
|
|||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:56:5
|
||||
--> $DIR/no_effect.rs:58:5
|
||||
|
|
||||
56 | 0;
|
||||
58 | 0;
|
||||
| ^^
|
||||
|
|
||||
= note: `-D no-effect` implied by `-D warnings`
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:57:5
|
||||
|
|
||||
57 | s2;
|
||||
| ^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:58:5
|
||||
|
|
||||
58 | Unit;
|
||||
| ^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:59:5
|
||||
|
|
||||
59 | Tuple(0);
|
||||
| ^^^^^^^^^
|
||||
59 | s2;
|
||||
| ^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:60:5
|
||||
|
|
||||
60 | Struct { field: 0 };
|
||||
| ^^^^^^^^^^^^^^^^^^^^
|
||||
60 | Unit;
|
||||
| ^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:61:5
|
||||
|
|
||||
61 | Struct { ..s };
|
||||
| ^^^^^^^^^^^^^^^
|
||||
61 | Tuple(0);
|
||||
| ^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:62:5
|
||||
|
|
||||
62 | Union { a: 0 };
|
||||
| ^^^^^^^^^^^^^^^
|
||||
62 | Struct { field: 0 };
|
||||
| ^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:63:5
|
||||
|
|
||||
63 | Enum::Tuple(0);
|
||||
63 | Struct { ..s };
|
||||
| ^^^^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:64:5
|
||||
|
|
||||
64 | Enum::Struct { field: 0 };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
64 | Union { a: 0 };
|
||||
| ^^^^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:65:5
|
||||
|
|
||||
65 | 5 + 6;
|
||||
| ^^^^^^
|
||||
65 | Enum::Tuple(0);
|
||||
| ^^^^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:66:5
|
||||
|
|
||||
66 | *&42;
|
||||
| ^^^^^
|
||||
66 | Enum::Struct { field: 0 };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:67:5
|
||||
|
|
||||
67 | &6;
|
||||
| ^^^
|
||||
67 | 5 + 6;
|
||||
| ^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:68:5
|
||||
|
|
||||
68 | (5, 6, 7);
|
||||
| ^^^^^^^^^^
|
||||
68 | *&42;
|
||||
| ^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:69:5
|
||||
|
|
||||
69 | box 42;
|
||||
| ^^^^^^^
|
||||
69 | &6;
|
||||
| ^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:70:5
|
||||
|
|
||||
70 | ..;
|
||||
| ^^^
|
||||
70 | (5, 6, 7);
|
||||
| ^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:71:5
|
||||
|
|
||||
71 | 5..;
|
||||
| ^^^^
|
||||
71 | box 42;
|
||||
| ^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:72:5
|
||||
|
|
||||
72 | ..5;
|
||||
| ^^^^
|
||||
72 | ..;
|
||||
| ^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:73:5
|
||||
|
|
||||
73 | 5..6;
|
||||
| ^^^^^
|
||||
73 | 5..;
|
||||
| ^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:74:5
|
||||
|
|
||||
74 | 5..=6;
|
||||
| ^^^^^^
|
||||
74 | ..5;
|
||||
| ^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:75:5
|
||||
|
|
||||
75 | [42, 55];
|
||||
| ^^^^^^^^^
|
||||
75 | 5..6;
|
||||
| ^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:76:5
|
||||
|
|
||||
76 | [42, 55][1];
|
||||
| ^^^^^^^^^^^^
|
||||
76 | 5..=6;
|
||||
| ^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:77:5
|
||||
|
|
||||
77 | (42, 55).1;
|
||||
| ^^^^^^^^^^^
|
||||
77 | [42, 55];
|
||||
| ^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:78:5
|
||||
|
|
||||
78 | [42; 55];
|
||||
| ^^^^^^^^^
|
||||
78 | [42, 55][1];
|
||||
| ^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:79:5
|
||||
|
|
||||
79 | [42; 55][13];
|
||||
| ^^^^^^^^^^^^^
|
||||
79 | (42, 55).1;
|
||||
| ^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:80:5
|
||||
|
|
||||
80 | [42; 55];
|
||||
| ^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:81:5
|
||||
|
|
||||
81 | || x += 5;
|
||||
81 | [42; 55][13];
|
||||
| ^^^^^^^^^^^^^
|
||||
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:83:5
|
||||
|
|
||||
83 | || x += 5;
|
||||
| ^^^^^^^^^^
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:92:5
|
||||
error: statement with no effect
|
||||
--> $DIR/no_effect.rs:85:5
|
||||
|
|
||||
92 | Tuple(get_number());
|
||||
85 | FooString { s: s };
|
||||
| ^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:96:5
|
||||
|
|
||||
96 | Tuple(get_number());
|
||||
| ^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
|
||||
= note: `-D unnecessary-operation` implied by `-D warnings`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:93:5
|
||||
|
|
||||
93 | Struct { field: get_number() };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:94:5
|
||||
|
|
||||
94 | Struct { ..get_struct() };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_struct();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:95:5
|
||||
|
|
||||
95 | Enum::Tuple(get_number());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:96:5
|
||||
|
|
||||
96 | Enum::Struct { field: get_number() };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:97:5
|
||||
|
|
||||
97 | 5 + get_number();
|
||||
| ^^^^^^^^^^^^^^^^^ help: replace it with: `5;get_number();`
|
||||
97 | Struct { field: get_number() };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:98:5
|
||||
|
|
||||
98 | *&get_number();
|
||||
| ^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
98 | Struct { ..get_struct() };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_struct();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:99:5
|
||||
|
|
||||
99 | &get_number();
|
||||
| ^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
99 | Enum::Tuple(get_number());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:100:5
|
||||
|
|
||||
100 | (5, 6, get_number());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `5;6;get_number();`
|
||||
100 | Enum::Struct { field: get_number() };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:101:5
|
||||
|
|
||||
101 | box get_number();
|
||||
| ^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
101 | 5 + get_number();
|
||||
| ^^^^^^^^^^^^^^^^^ help: replace it with: `5;get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:102:5
|
||||
|
|
||||
102 | get_number()..;
|
||||
102 | *&get_number();
|
||||
| ^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:103:5
|
||||
|
|
||||
103 | ..get_number();
|
||||
| ^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
103 | &get_number();
|
||||
| ^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:104:5
|
||||
|
|
||||
104 | 5..get_number();
|
||||
| ^^^^^^^^^^^^^^^^ help: replace it with: `5;get_number();`
|
||||
104 | (5, 6, get_number());
|
||||
| ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `5;6;get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:105:5
|
||||
|
|
||||
105 | [42, get_number()];
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: replace it with: `42;get_number();`
|
||||
105 | box get_number();
|
||||
| ^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:106:5
|
||||
|
|
||||
106 | [42, 55][get_number() as usize];
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `[42, 55];get_number() as usize;`
|
||||
106 | get_number()..;
|
||||
| ^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:107:5
|
||||
|
|
||||
107 | (42, get_number()).1;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `42;get_number();`
|
||||
107 | ..get_number();
|
||||
| ^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:108:5
|
||||
|
|
||||
108 | [get_number(); 55];
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
108 | 5..get_number();
|
||||
| ^^^^^^^^^^^^^^^^ help: replace it with: `5;get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:109:5
|
||||
|
|
||||
109 | [42; 55][get_number() as usize];
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `[42; 55];get_number() as usize;`
|
||||
109 | [42, get_number()];
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: replace it with: `42;get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:110:5
|
||||
|
|
||||
110 | {get_number()};
|
||||
110 | [42, 55][get_number() as usize];
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `[42, 55];get_number() as usize;`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:111:5
|
||||
|
|
||||
111 | (42, get_number()).1;
|
||||
| ^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `42;get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:112:5
|
||||
|
|
||||
112 | [get_number(); 55];
|
||||
| ^^^^^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:113:5
|
||||
|
|
||||
113 | [42; 55][get_number() as usize];
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `[42; 55];get_number() as usize;`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:114:5
|
||||
|
|
||||
114 | {get_number()};
|
||||
| ^^^^^^^^^^^^^^^ help: replace it with: `get_number();`
|
||||
|
||||
error: statement can be reduced
|
||||
--> $DIR/no_effect.rs:115:5
|
||||
|
|
||||
115 | FooString { s: String::from("blah"), };
|
||||
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `String::from("blah");`
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue