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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/functional-struct-update
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/functional-struct-update')
-rw-r--r--src/test/ui/functional-struct-update/functional-struct-update-noncopyable.rs14
-rw-r--r--src/test/ui/functional-struct-update/functional-struct-update-noncopyable.stderr12
-rw-r--r--src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.rs32
-rw-r--r--src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.stderr9
4 files changed, 67 insertions, 0 deletions
diff --git a/src/test/ui/functional-struct-update/functional-struct-update-noncopyable.rs b/src/test/ui/functional-struct-update/functional-struct-update-noncopyable.rs
new file mode 100644
index 000000000..a9d7d9c8a
--- /dev/null
+++ b/src/test/ui/functional-struct-update/functional-struct-update-noncopyable.rs
@@ -0,0 +1,14 @@
+// issue 7327
+
+use std::sync::Arc;
+
+struct A { y: Arc<isize>, x: Arc<isize> }
+
+impl Drop for A {
+ fn drop(&mut self) { println!("x={}", *self.x); }
+}
+fn main() {
+ let a = A { y: Arc::new(1), x: Arc::new(2) };
+ let _b = A { y: Arc::new(3), ..a }; //~ ERROR cannot move out of type `A`
+ let _c = a;
+}
diff --git a/src/test/ui/functional-struct-update/functional-struct-update-noncopyable.stderr b/src/test/ui/functional-struct-update/functional-struct-update-noncopyable.stderr
new file mode 100644
index 000000000..45cdd3d2d
--- /dev/null
+++ b/src/test/ui/functional-struct-update/functional-struct-update-noncopyable.stderr
@@ -0,0 +1,12 @@
+error[E0509]: cannot move out of type `A`, which implements the `Drop` trait
+ --> $DIR/functional-struct-update-noncopyable.rs:12:14
+ |
+LL | let _b = A { y: Arc::new(3), ..a };
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^
+ | |
+ | cannot move out of here
+ | move occurs because `a.x` has type `Arc<isize>`, which does not implement the `Copy` trait
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0509`.
diff --git a/src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.rs b/src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.rs
new file mode 100644
index 000000000..500633edf
--- /dev/null
+++ b/src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.rs
@@ -0,0 +1,32 @@
+// RFC 736 (and Issue 21407): functional struct update should respect privacy.
+
+// The `foo` module attempts to maintains an invariant that each `S`
+// has a unique `u64` id.
+use self::foo::S;
+mod foo {
+ use std::cell::{UnsafeCell};
+
+ static mut COUNT : UnsafeCell<u64> = UnsafeCell::new(1);
+
+ pub struct S { pub a: u8, pub b: String, secret_uid: u64 }
+
+ pub fn make_secrets(a: u8, b: String) -> S {
+ let val = unsafe { let p = COUNT.get(); let val = *p; *p = val + 1; val };
+ println!("creating {}, uid {}", b, val);
+ S { a: a, b: b, secret_uid: val }
+ }
+
+ impl Drop for S {
+ fn drop(&mut self) {
+ println!("dropping {}, uid {}", self.b, self.secret_uid);
+ }
+ }
+}
+
+fn main() {
+ let s_1 = foo::make_secrets(3, format!("ess one"));
+ let s_2 = foo::S { b: format!("ess two"), ..s_1 }; // FRU ...
+ //~^ ERROR field `secret_uid` of struct `S` is private
+ println!("main forged an S named: {}", s_2.b);
+ // at end of scope, ... both s_1 *and* s_2 get dropped. Boom!
+}
diff --git a/src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.stderr b/src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.stderr
new file mode 100644
index 000000000..0b8af90b4
--- /dev/null
+++ b/src/test/ui/functional-struct-update/functional-struct-update-respects-privacy.stderr
@@ -0,0 +1,9 @@
+error[E0451]: field `secret_uid` of struct `S` is private
+ --> $DIR/functional-struct-update-respects-privacy.rs:28:49
+ |
+LL | let s_2 = foo::S { b: format!("ess two"), ..s_1 }; // FRU ...
+ | ^^^ field `secret_uid` is private
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0451`.