diff options
Diffstat (limited to 'src/test/ui')
| -rw-r--r-- | src/test/ui/async-await/issue-69446-fnmut-capture.rs | 22 | ||||
| -rw-r--r-- | src/test/ui/async-await/issue-69446-fnmut-capture.stderr | 19 | ||||
| -rw-r--r-- | src/test/ui/borrowck/borrowck-describe-lvalue.stderr | 3 | ||||
| -rw-r--r-- | src/test/ui/issues/issue-40510-1.stderr | 8 | ||||
| -rw-r--r-- | src/test/ui/issues/issue-40510-3.stderr | 4 | ||||
| -rw-r--r-- | src/test/ui/issues/issue-49824.stderr | 3 | ||||
| -rw-r--r-- | src/test/ui/nll/issue-53040.stderr | 8 | ||||
| -rw-r--r-- | src/test/ui/regions/regions-return-ref-to-upvar-issue-17403.stderr | 8 |
8 files changed, 70 insertions, 5 deletions
diff --git a/src/test/ui/async-await/issue-69446-fnmut-capture.rs b/src/test/ui/async-await/issue-69446-fnmut-capture.rs new file mode 100644 index 00000000000..842115538c9 --- /dev/null +++ b/src/test/ui/async-await/issue-69446-fnmut-capture.rs @@ -0,0 +1,22 @@ +// Regression test for issue #69446 - we should display +// which variable is captured +// edition:2018 + +use core::future::Future; + +struct Foo; +impl Foo { + fn foo(&mut self) {} +} + +async fn bar<T>(_: impl FnMut() -> T) +where + T: Future<Output = ()>, +{} + +fn main() { + let mut x = Foo; + bar(move || async { //~ ERROR captured + x.foo(); + }); +} diff --git a/src/test/ui/async-await/issue-69446-fnmut-capture.stderr b/src/test/ui/async-await/issue-69446-fnmut-capture.stderr new file mode 100644 index 00000000000..3d2b0402bc5 --- /dev/null +++ b/src/test/ui/async-await/issue-69446-fnmut-capture.stderr @@ -0,0 +1,19 @@ +error: captured variable cannot escape `FnMut` closure body + --> $DIR/issue-69446-fnmut-capture.rs:19:17 + | +LL | let mut x = Foo; + | ----- variable defined here +LL | bar(move || async { + | _______________-_^ + | | | + | | inferred to be a `FnMut` closure +LL | | x.foo(); + | | - variable captured here +LL | | }); + | |_____^ returns an `async` block that contains a reference to a captured variable, which then escapes the closure body + | + = note: `FnMut` closures only have access to their captured variables while they are executing... + = note: ...therefore, they cannot allow references to captured variables to escape + +error: aborting due to previous error + diff --git a/src/test/ui/borrowck/borrowck-describe-lvalue.stderr b/src/test/ui/borrowck/borrowck-describe-lvalue.stderr index 075e0e2e451..4144d70cc16 100644 --- a/src/test/ui/borrowck/borrowck-describe-lvalue.stderr +++ b/src/test/ui/borrowck/borrowck-describe-lvalue.stderr @@ -21,10 +21,13 @@ LL | *y = 1; error: captured variable cannot escape `FnMut` closure body --> $DIR/borrowck-describe-lvalue.rs:264:16 | +LL | let mut x = 0; + | ----- variable defined here LL | || { | - inferred to be a `FnMut` closure LL | / || { LL | | let y = &mut x; + | | - variable captured here LL | | &mut x; LL | | *y = 1; LL | | drop(y); diff --git a/src/test/ui/issues/issue-40510-1.stderr b/src/test/ui/issues/issue-40510-1.stderr index f4fda0abc20..54df40b6e3d 100644 --- a/src/test/ui/issues/issue-40510-1.stderr +++ b/src/test/ui/issues/issue-40510-1.stderr @@ -1,10 +1,16 @@ error: captured variable cannot escape `FnMut` closure body --> $DIR/issue-40510-1.rs:7:9 | +LL | let mut x: Box<()> = Box::new(()); + | ----- variable defined here +LL | LL | || { | - inferred to be a `FnMut` closure LL | &mut x - | ^^^^^^ returns a reference to a captured variable which escapes the closure body + | ^^^^^- + | | | + | | variable captured here + | returns a reference to a captured variable which escapes the closure body | = note: `FnMut` closures only have access to their captured variables while they are executing... = note: ...therefore, they cannot allow references to captured variables to escape diff --git a/src/test/ui/issues/issue-40510-3.stderr b/src/test/ui/issues/issue-40510-3.stderr index 4bc7d0f5dea..cb885ec7d95 100644 --- a/src/test/ui/issues/issue-40510-3.stderr +++ b/src/test/ui/issues/issue-40510-3.stderr @@ -1,10 +1,14 @@ error: captured variable cannot escape `FnMut` closure body --> $DIR/issue-40510-3.rs:7:9 | +LL | let mut x: Vec<()> = Vec::new(); + | ----- variable defined here +LL | LL | || { | - inferred to be a `FnMut` closure LL | / || { LL | | x.push(()) + | | - variable captured here LL | | } | |_________^ returns a closure that contains a reference to a captured variable, which then escapes the closure body | diff --git a/src/test/ui/issues/issue-49824.stderr b/src/test/ui/issues/issue-49824.stderr index 6b486aafcdf..2fec482543d 100644 --- a/src/test/ui/issues/issue-49824.stderr +++ b/src/test/ui/issues/issue-49824.stderr @@ -1,11 +1,14 @@ error: captured variable cannot escape `FnMut` closure body --> $DIR/issue-49824.rs:4:9 | +LL | let mut x = 0; + | ----- variable defined here LL | || { | - inferred to be a `FnMut` closure LL | / || { LL | | LL | | let _y = &mut x; + | | - variable captured here LL | | } | |_________^ returns a closure that contains a reference to a captured variable, which then escapes the closure body | diff --git a/src/test/ui/nll/issue-53040.stderr b/src/test/ui/nll/issue-53040.stderr index 7cba32c6743..87ffe9b1abf 100644 --- a/src/test/ui/nll/issue-53040.stderr +++ b/src/test/ui/nll/issue-53040.stderr @@ -1,9 +1,13 @@ error: captured variable cannot escape `FnMut` closure body --> $DIR/issue-53040.rs:3:8 | +LL | let mut v: Vec<()> = Vec::new(); + | ----- variable defined here LL | || &mut v; - | - ^^^^^^ returns a reference to a captured variable which escapes the closure body - | | + | - ^^^^^- + | | | | + | | | variable captured here + | | returns a reference to a captured variable which escapes the closure body | inferred to be a `FnMut` closure | = note: `FnMut` closures only have access to their captured variables while they are executing... diff --git a/src/test/ui/regions/regions-return-ref-to-upvar-issue-17403.stderr b/src/test/ui/regions/regions-return-ref-to-upvar-issue-17403.stderr index 4c275b19492..b087e03b464 100644 --- a/src/test/ui/regions/regions-return-ref-to-upvar-issue-17403.stderr +++ b/src/test/ui/regions/regions-return-ref-to-upvar-issue-17403.stderr @@ -1,9 +1,13 @@ error: captured variable cannot escape `FnMut` closure body --> $DIR/regions-return-ref-to-upvar-issue-17403.rs:7:24 | +LL | let mut x = 0; + | ----- variable defined here LL | let mut f = || &mut x; - | - ^^^^^^ returns a reference to a captured variable which escapes the closure body - | | + | - ^^^^^- + | | | | + | | | variable captured here + | | returns a reference to a captured variable which escapes the closure body | inferred to be a `FnMut` closure | = note: `FnMut` closures only have access to their captured variables while they are executing... |