diff options
Diffstat (limited to 'src/test/ui/lint/lint-const-item-mutation.stderr')
| -rw-r--r-- | src/test/ui/lint/lint-const-item-mutation.stderr | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/test/ui/lint/lint-const-item-mutation.stderr b/src/test/ui/lint/lint-const-item-mutation.stderr new file mode 100644 index 000000000..94d876423 --- /dev/null +++ b/src/test/ui/lint/lint-const-item-mutation.stderr @@ -0,0 +1,121 @@ +warning: attempting to modify a `const` item + --> $DIR/lint-const-item-mutation.rs:37:5 + | +LL | ARRAY[0] = 5; + | ^^^^^^^^^^^^ + | + = note: `#[warn(const_item_mutation)]` on by default + = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:26:1 + | +LL | const ARRAY: [u8; 1] = [25]; + | ^^^^^^^^^^^^^^^^^^^^ + +warning: attempting to modify a `const` item + --> $DIR/lint-const-item-mutation.rs:38:5 + | +LL | MY_STRUCT.field = false; + | ^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:27:1 + | +LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: attempting to modify a `const` item + --> $DIR/lint-const-item-mutation.rs:39:5 + | +LL | MY_STRUCT.inner_array[0] = 'b'; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:27:1 + | +LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: taking a mutable reference to a `const` item + --> $DIR/lint-const-item-mutation.rs:40:5 + | +LL | MY_STRUCT.use_mut(); + | ^^^^^^^^^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary + = note: the mutable reference will refer to this temporary, not the original `const` item +note: mutable reference created due to call to this method + --> $DIR/lint-const-item-mutation.rs:9:5 + | +LL | fn use_mut(&mut self) {} + | ^^^^^^^^^^^^^^^^^^^^^ +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:27:1 + | +LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: taking a mutable reference to a `const` item + --> $DIR/lint-const-item-mutation.rs:41:5 + | +LL | &mut MY_STRUCT; + | ^^^^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary + = note: the mutable reference will refer to this temporary, not the original `const` item +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:27:1 + | +LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: taking a mutable reference to a `const` item + --> $DIR/lint-const-item-mutation.rs:42:5 + | +LL | (&mut MY_STRUCT).use_mut(); + | ^^^^^^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary + = note: the mutable reference will refer to this temporary, not the original `const` item +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:27:1 + | +LL | const MY_STRUCT: MyStruct = MyStruct { field: true, inner_array: ['a'], raw_ptr: 2 as *mut u8 }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: attempting to modify a `const` item + --> $DIR/lint-const-item-mutation.rs:54:5 + | +LL | MUTABLE2.msg = "wow"; + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary; the original `const` item will not be modified +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:30:1 + | +LL | const MUTABLE2: Mutable2 = Mutable2 { msg: "", other: String::new() }; + | ^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: taking a mutable reference to a `const` item + --> $DIR/lint-const-item-mutation.rs:55:5 + | +LL | VEC.push(0); + | ^^^^^^^^^^^ + | + = note: each usage of a `const` item creates a new temporary + = note: the mutable reference will refer to this temporary, not the original `const` item +note: mutable reference created due to call to this method + --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL + | +LL | pub fn push(&mut self, value: T) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +note: `const` item defined here + --> $DIR/lint-const-item-mutation.rs:31:1 + | +LL | const VEC: Vec<i32> = Vec::new(); + | ^^^^^^^^^^^^^^^^^^^ + +warning: 8 warnings emitted + |