Adding upstream version 1.65.0+dfsg1.upstream/1.65.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/src/tools/clippy/src/docs/not_unsafe_ptr_arg_deref.txt b/src/tools/clippy/src/docs/not_unsafe_ptr_arg_deref.txt
new file mode 100644
index 000000000..31355fbb7
--- /dev/null
+++ b/src/tools/clippy/src/docs/not_unsafe_ptr_arg_deref.txt
@@ -0,0 +1,30 @@
+### What it does
+Checks for public functions that dereference raw pointer
+arguments but are not marked `unsafe`.
+
+### Why is this bad?
+The function should probably be marked `unsafe`, since
+for an arbitrary raw pointer, there is no way of telling for sure if it is
+valid.
+
+### Known problems
+* It does not check functions recursively so if the pointer is passed to a
+private non-`unsafe` function which does the dereferencing, the lint won't
+trigger.
+* It only checks for arguments whose type are raw pointers, not raw pointers
+got from an argument in some other way (`fn foo(bar: &[*const u8])` or
+`some_argument.get_raw_ptr()`).
+
+### Example
+```
+pub fn foo(x: *const u8) {
+    println!("{}", unsafe { *x });
+}
+```
+
+Use instead:
+```
+pub unsafe fn foo(x: *const u8) {
+    println!("{}", unsafe { *x });
+}
+```
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