diff options
Diffstat (limited to 'src/test/ui/borrowck/mutability-errors.stderr')
| -rw-r--r-- | src/test/ui/borrowck/mutability-errors.stderr | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/mutability-errors.stderr b/src/test/ui/borrowck/mutability-errors.stderr new file mode 100644 index 000000000..dd29ae492 --- /dev/null +++ b/src/test/ui/borrowck/mutability-errors.stderr @@ -0,0 +1,345 @@ +error[E0594]: cannot assign to `*x`, which is behind a `&` reference + --> $DIR/mutability-errors.rs:9:5 + | +LL | fn named_ref(x: &(i32,)) { + | ------- help: consider changing this to be a mutable reference: `&mut (i32,)` +LL | *x = (1,); + | ^^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written + +error[E0594]: cannot assign to `x.0`, which is behind a `&` reference + --> $DIR/mutability-errors.rs:10:5 + | +LL | fn named_ref(x: &(i32,)) { + | ------- help: consider changing this to be a mutable reference: `&mut (i32,)` +LL | *x = (1,); +LL | x.0 = 1; + | ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be written + +error[E0596]: cannot borrow `*x` as mutable, as it is behind a `&` reference + --> $DIR/mutability-errors.rs:11:5 + | +LL | fn named_ref(x: &(i32,)) { + | ------- help: consider changing this to be a mutable reference: `&mut (i32,)` +... +LL | &mut *x; + | ^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as it is behind a `&` reference + --> $DIR/mutability-errors.rs:12:5 + | +LL | fn named_ref(x: &(i32,)) { + | ------- help: consider changing this to be a mutable reference: `&mut (i32,)` +... +LL | &mut x.0; + | ^^^^^^^^ `x` is a `&` reference, so the data it refers to cannot be borrowed as mutable + +error[E0594]: cannot assign to data in a `&` reference + --> $DIR/mutability-errors.rs:16:5 + | +LL | *f() = (1,); + | ^^^^^^^^^^^ cannot assign + +error[E0594]: cannot assign to data in a `&` reference + --> $DIR/mutability-errors.rs:17:5 + | +LL | f().0 = 1; + | ^^^^^^^^^ cannot assign + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mutability-errors.rs:18:5 + | +LL | &mut *f(); + | ^^^^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mutability-errors.rs:19:5 + | +LL | &mut f().0; + | ^^^^^^^^^^ cannot borrow as mutable + +error[E0594]: cannot assign to `*x`, which is behind a `*const` pointer + --> $DIR/mutability-errors.rs:23:5 + | +LL | unsafe fn named_ptr(x: *const (i32,)) { + | ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)` +LL | *x = (1,); + | ^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be written + +error[E0594]: cannot assign to `x.0`, which is behind a `*const` pointer + --> $DIR/mutability-errors.rs:24:5 + | +LL | unsafe fn named_ptr(x: *const (i32,)) { + | ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)` +LL | *x = (1,); +LL | (*x).0 = 1; + | ^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be written + +error[E0596]: cannot borrow `*x` as mutable, as it is behind a `*const` pointer + --> $DIR/mutability-errors.rs:25:5 + | +LL | unsafe fn named_ptr(x: *const (i32,)) { + | ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)` +... +LL | &mut *x; + | ^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as it is behind a `*const` pointer + --> $DIR/mutability-errors.rs:26:5 + | +LL | unsafe fn named_ptr(x: *const (i32,)) { + | ------------- help: consider changing this to be a mutable pointer: `*mut (i32,)` +... +LL | &mut (*x).0; + | ^^^^^^^^^^^ `x` is a `*const` pointer, so the data it refers to cannot be borrowed as mutable + +error[E0594]: cannot assign to data in a `*const` pointer + --> $DIR/mutability-errors.rs:30:5 + | +LL | *f() = (1,); + | ^^^^^^^^^^^ cannot assign + +error[E0594]: cannot assign to data in a `*const` pointer + --> $DIR/mutability-errors.rs:31:5 + | +LL | (*f()).0 = 1; + | ^^^^^^^^^^^^ cannot assign + +error[E0596]: cannot borrow data in a `*const` pointer as mutable + --> $DIR/mutability-errors.rs:32:5 + | +LL | &mut *f(); + | ^^^^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `*const` pointer as mutable + --> $DIR/mutability-errors.rs:33:5 + | +LL | &mut (*f()).0; + | ^^^^^^^^^^^^^ cannot borrow as mutable + +error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure + --> $DIR/mutability-errors.rs:40:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(|| { + | ------ -- in this closure + | | + | expects `Fn` instead of `FnMut` +LL | x = (1,); + | ^^^^^^^^ cannot assign + +error[E0594]: cannot assign to `x.0`, as `Fn` closures cannot mutate their captured variables + --> $DIR/mutability-errors.rs:41:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(|| { + | ------ -- in this closure + | | + | expects `Fn` instead of `FnMut` +LL | x = (1,); +LL | x.0 = 1; + | ^^^^^^^ cannot assign + +error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure + --> $DIR/mutability-errors.rs:42:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(|| { + | ------ -- in this closure + | | + | expects `Fn` instead of `FnMut` +... +LL | &mut x; + | ^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as `Fn` closures cannot mutate their captured variables + --> $DIR/mutability-errors.rs:43:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(|| { + | ------ -- in this closure + | | + | expects `Fn` instead of `FnMut` +... +LL | &mut x.0; + | ^^^^^^^^ cannot borrow as mutable + +error[E0594]: cannot assign to `x`, as it is a captured variable in a `Fn` closure + --> $DIR/mutability-errors.rs:46:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(move || { + | ------ ------- in this closure + | | + | expects `Fn` instead of `FnMut` +LL | x = (1,); + | ^^^^^^^^ cannot assign + +error[E0594]: cannot assign to `x.0`, as `Fn` closures cannot mutate their captured variables + --> $DIR/mutability-errors.rs:47:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(move || { + | ------ ------- in this closure + | | + | expects `Fn` instead of `FnMut` +LL | x = (1,); +LL | x.0 = 1; + | ^^^^^^^ cannot assign + +error[E0596]: cannot borrow `x` as mutable, as it is a captured variable in a `Fn` closure + --> $DIR/mutability-errors.rs:48:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(move || { + | ------ ------- in this closure + | | + | expects `Fn` instead of `FnMut` +... +LL | &mut x; + | ^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as `Fn` closures cannot mutate their captured variables + --> $DIR/mutability-errors.rs:49:9 + | +LL | fn fn_ref<F: Fn()>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | fn_ref(move || { + | ------ ------- in this closure + | | + | expects `Fn` instead of `FnMut` +... +LL | &mut x.0; + | ^^^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable + --> $DIR/mutability-errors.rs:54:5 + | +LL | fn imm_local(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +LL | &mut x; + | ^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable + --> $DIR/mutability-errors.rs:55:5 + | +LL | fn imm_local(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +LL | &mut x; +LL | &mut x.0; + | ^^^^^^^^ cannot borrow as mutable + +error[E0594]: cannot assign to `x`, as it is not declared as mutable + --> $DIR/mutability-errors.rs:60:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +LL | || { +LL | x = (1,); + | ^^^^^^^^ cannot assign + +error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable + --> $DIR/mutability-errors.rs:61:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | x.0 = 1; + | ^^^^^^^ cannot assign + +error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable + --> $DIR/mutability-errors.rs:62:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | &mut x; + | ^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable + --> $DIR/mutability-errors.rs:63:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | &mut x.0; + | ^^^^^^^^ cannot borrow as mutable + +error[E0594]: cannot assign to `x`, as it is not declared as mutable + --> $DIR/mutability-errors.rs:66:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | x = (1,); + | ^^^^^^^^ cannot assign + +error[E0594]: cannot assign to `x.0`, as `x` is not declared as mutable + --> $DIR/mutability-errors.rs:67:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | x.0 = 1; + | ^^^^^^^ cannot assign + +error[E0596]: cannot borrow `x` as mutable, as it is not declared as mutable + --> $DIR/mutability-errors.rs:68:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | &mut x; + | ^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `x.0` as mutable, as `x` is not declared as mutable + --> $DIR/mutability-errors.rs:69:9 + | +LL | fn imm_capture(x: (i32,)) { + | - help: consider changing this to be mutable: `mut x` +... +LL | &mut x.0; + | ^^^^^^^^ cannot borrow as mutable + +error[E0594]: cannot assign to immutable static item `X` + --> $DIR/mutability-errors.rs:76:5 + | +LL | X = (1,); + | ^^^^^^^^ cannot assign + +error[E0594]: cannot assign to `X.0`, as `X` is an immutable static item + --> $DIR/mutability-errors.rs:77:5 + | +LL | X.0 = 1; + | ^^^^^^^ cannot assign + +error[E0596]: cannot borrow immutable static item `X` as mutable + --> $DIR/mutability-errors.rs:78:5 + | +LL | &mut X; + | ^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow `X.0` as mutable, as `X` is an immutable static item + --> $DIR/mutability-errors.rs:79:5 + | +LL | &mut X.0; + | ^^^^^^^^ cannot borrow as mutable + +error: aborting due to 38 previous errors + +Some errors have detailed explanations: E0594, E0596. +For more information about an error, try `rustc --explain E0594`. |