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rust/tests/ui/nll/issue-51191.stderr

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remove allow(unconditional_recursion)
2021-07-27 16:12:59 +00:00
warning: function cannot return without recursing
--> $DIR/issue-51191.rs:4:5
|
LL | fn bar(self: &mut Self) {
| ^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
...
LL | (&mut self).bar();
| ----------------- recursive call site
|
= help: a `loop` may express intention better if this is on purpose
bless ui tests
2022-09-18 15:55:36 +00:00
= note: `#[warn(unconditional_recursion)]` on by default
remove allow(unconditional_recursion)
2021-07-27 16:12:59 +00:00
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
suggest removing unnecessary \&mut as help message
2021-07-25 14:23:48 +00:00
--> $DIR/issue-51191.rs:7:9
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
|
Suggestion for call on immutable binding of mutable type When calling a method requiring a mutable self borrow on an inmutable to a mutable borrow of the type, suggest making the binding mutable. Fix #83241.
2021-03-18 01:45:49 +00:00
LL | (&mut self).bar();
| ^^^^^^^^^^^ cannot borrow as mutable
|
note: the binding is already a mutable borrow
--> $DIR/issue-51191.rs:4:18
|
LL | fn bar(self: &mut Self) {
| ^^^^^^^^^
help: try removing `&mut` here
--> $DIR/issue-51191.rs:7:9
|
Improve mutability error suggestions. This commit improves mutability error suggestions by suggesting the removal of `&mut` where a mutable borrow is being taken of a `&mut self` or a `self: &mut Self`.
2018-10-01 17:20:57 +00:00
LL | (&mut self).bar();
| ^^^^^^^^^^^
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
suggest removing unnecessary \&mut as help message
2021-07-25 14:23:48 +00:00
--> $DIR/issue-51191.rs:13:9
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
|
Improve mutability error suggestions. This commit improves mutability error suggestions by suggesting the removal of `&mut` where a mutable borrow is being taken of a `&mut self` or a `self: &mut Self`.
2018-10-01 17:20:57 +00:00
LL | (&mut self).bar();
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
| ^^^^^^^^^^^ cannot borrow as mutable
Verbose suggestions
2023-01-01 08:06:31 +00:00
|
help: consider changing this to be mutable
|
LL | fn imm(mut self) {
| +++
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
suggest removing unnecessary \&mut as help message
2021-07-25 14:23:48 +00:00
--> $DIR/issue-51191.rs:22:9
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
|
Improve mutability error suggestions. This commit improves mutability error suggestions by suggesting the removal of `&mut` where a mutable borrow is being taken of a `&mut self` or a `self: &mut Self`.
2018-10-01 17:20:57 +00:00
LL | (&mut self).bar();
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
| ^^^^^^^^^^^ cannot borrow as mutable
error[E0596]: cannot borrow data in a `&` reference as mutable
suggest removing unnecessary \&mut as help message
2021-07-25 14:23:48 +00:00
--> $DIR/issue-51191.rs:22:9
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
|
Improve mutability error suggestions. This commit improves mutability error suggestions by suggesting the removal of `&mut` where a mutable borrow is being taken of a `&mut self` or a `self: &mut Self`.
2018-10-01 17:20:57 +00:00
LL | (&mut self).bar();
Use larger span for adjustments on method calls Currently, we use a relatively 'small' span for THIR expressions generated by an 'adjustment' (e.g. an autoderef, autoborrow, unsizing). As a result, if a borrow generated by an adustment ends up causing a borrowcheck error, for example: ```rust let mut my_var = String::new(); let my_ref = &my_var my_var.push('a'); my_ref; ``` then the span for the mutable borrow may end up referring to only the base expression (e.g. `my_var`), rather than the method call which triggered the mutable borrow (e.g. `my_var.push('a')`) Due to a quirk of the MIR borrowck implementation, this doesn't always get exposed in migration mode, but it does in many cases. This commit makes THIR building consistently use 'larger' spans for adjustment expressions The intent of this change it make it clearer to users when it's the specific way in which a variable is used (for example, in a method call) that produdes a borrowcheck error. For example, an error message claiming that a 'mutable borrow occurs here' might be confusing if it just points at a usage of a variable (e.g. `my_var`), when no `&mut` is in sight. Pointing at the entire expression should help to emphasize that the method call itself is responsible for the mutable borrow. In several cases, this makes the `#![feature(nll)]` diagnostic output match up exactly with the default (migration mode) output. As a result, several `.nll.stderr` files end up getting removed entirely.
2021-09-16 20:01:22 +00:00
| ^^^^^^^^^^^^^^^^^ cannot borrow as mutable
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
error[E0596]: cannot borrow `self` as mutable, as it is not declared as mutable
suggest removing unnecessary \&mut as help message
2021-07-25 14:23:48 +00:00
--> $DIR/issue-51191.rs:28:9
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
|
Suggestion for call on immutable binding of mutable type When calling a method requiring a mutable self borrow on an inmutable to a mutable borrow of the type, suggest making the binding mutable. Fix #83241.
2021-03-18 01:45:49 +00:00
LL | (&mut self).bar();
| ^^^^^^^^^^^ cannot borrow as mutable
|
note: the binding is already a mutable borrow
--> $DIR/issue-51191.rs:27:16
|
LL | fn mtblref(&mut self) {
| ^^^^^^^^^
help: try removing `&mut` here
--> $DIR/issue-51191.rs:28:9
|
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
LL | (&mut self).bar();
Improve mutability error suggestions. This commit improves mutability error suggestions by suggesting the removal of `&mut` where a mutable borrow is being taken of a `&mut self` or a `self: &mut Self`.
2018-10-01 17:20:57 +00:00
| ^^^^^^^^^^^
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
remove allow(unconditional_recursion)
2021-07-27 16:12:59 +00:00
error: aborting due to 5 previous errors; 1 warning emitted
Improve implicit self mutability suggestions. This commit adds an `ImplicitSelfKind` to the HIR and the MIR that keeps track of whether a implicit self argument is immutable by-value, mutable by-value, immutable reference or mutable reference so that the addition of the `mut` keyword can be suggested for the immutable by-value case.
2018-10-01 15:46:04 +00:00
For more information about this error, try `rustc --explain E0596`.
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