Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 15 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0447.md b/compiler/rustc_error_codes/src/error_codes/E0447.md
new file mode 100644
index 000000000..af8cd8d6d
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0447.md
@@ -0,0 +1,15 @@
+#### Note: this error code is no longer emitted by the compiler.
+
+The `pub` keyword was used inside a function.
+
+Erroneous code example:
+
+```
+fn foo() {
+    pub struct Bar; // error: visibility has no effect inside functions
+}
+```
+
+Since we cannot access items defined inside a function, the visibility of its
+items does not impact outer code. So using the `pub` keyword in this context
+is invalid.