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, 24 insertions, 0 deletions

diff --git a/src/tools/clippy/src/docs/zero_sized_map_values.txt b/src/tools/clippy/src/docs/zero_sized_map_values.txt
new file mode 100644
index 000000000..0502bdbf3
--- /dev/null
+++ b/src/tools/clippy/src/docs/zero_sized_map_values.txt
@@ -0,0 +1,24 @@
+### What it does
+Checks for maps with zero-sized value types anywhere in the code.
+
+### Why is this bad?
+Since there is only a single value for a zero-sized type, a map
+containing zero sized values is effectively a set. Using a set in that case improves
+readability and communicates intent more clearly.
+
+### Known problems
+* A zero-sized type cannot be recovered later if it contains private fields.
+* This lints the signature of public items
+
+### Example
+```
+fn unique_words(text: &str) -> HashMap<&str, ()> {
+    todo!();
+}
+```
+Use instead:
+```
+fn unique_words(text: &str) -> HashSet<&str> {
+    todo!();
+}
+```
\ No newline at end of file