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Diffstat (limited to 'src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.stderr')
| -rw-r--r-- | src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.stderr | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.stderr b/src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.stderr new file mode 100644 index 000000000..d6e74b5b8 --- /dev/null +++ b/src/test/ui/unboxed-closures/unboxed-closures-mutate-upvar.stderr @@ -0,0 +1,43 @@ +error[E0594]: cannot assign to `n`, as it is not declared as mutable + --> $DIR/unboxed-closures-mutate-upvar.rs:15:9 + | +LL | let n = 0; + | - help: consider changing this to be mutable: `mut n` +LL | let mut f = to_fn_mut(|| { +LL | n += 1; + | ^^^^^^ cannot assign + +error[E0594]: cannot assign to `n`, as it is not declared as mutable + --> $DIR/unboxed-closures-mutate-upvar.rs:32:9 + | +LL | let n = 0; + | - help: consider changing this to be mutable: `mut n` +... +LL | n += 1; + | ^^^^^^ cannot assign + +error[E0594]: cannot assign to `n`, as it is not declared as mutable + --> $DIR/unboxed-closures-mutate-upvar.rs:46:9 + | +LL | let n = 0; + | - help: consider changing this to be mutable: `mut n` +LL | let mut f = to_fn(move || { +LL | n += 1; + | ^^^^^^ cannot assign + +error[E0594]: cannot assign to `n`, as it is a captured variable in a `Fn` closure + --> $DIR/unboxed-closures-mutate-upvar.rs:53:9 + | +LL | fn to_fn<A,F:Fn<A>>(f: F) -> F { f } + | - change this to accept `FnMut` instead of `Fn` +... +LL | let mut f = to_fn(move || { + | ----- ------- in this closure + | | + | expects `Fn` instead of `FnMut` +LL | n += 1; + | ^^^^^^ cannot assign + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0594`. |