From 9835e2ae736235810b4ea1c162ca5e65c547e770 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 18 May 2024 04:49:50 +0200 Subject: Merging upstream version 1.71.1+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/methods/call_method_unknown_pointee.rs | 28 +++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 tests/ui/methods/call_method_unknown_pointee.rs (limited to 'tests/ui/methods/call_method_unknown_pointee.rs') diff --git a/tests/ui/methods/call_method_unknown_pointee.rs b/tests/ui/methods/call_method_unknown_pointee.rs new file mode 100644 index 000000000..fe4275f53 --- /dev/null +++ b/tests/ui/methods/call_method_unknown_pointee.rs @@ -0,0 +1,28 @@ +// edition: 2018 + +// tests that the pointee type of a raw pointer must be known to call methods on it +// see also: `tests/ui/editions/edition-raw-pointer-method-2018.rs` + +fn main() { + let val = 1_u32; + let ptr = &val as *const u32; + unsafe { + let _a: i32 = (ptr as *const _).read(); + //~^ ERROR cannot call a method on a raw pointer with an unknown pointee type [E0699] + let b = ptr as *const _; + let _b: u8 = b.read(); + //~^ ERROR cannot call a method on a raw pointer with an unknown pointee type [E0699] + let _c = (ptr as *const u8).read(); // we know the type here + } + + let mut val = 2_u32; + let ptr = &mut val as *mut u32; + unsafe { + let _a: i32 = (ptr as *mut _).read(); + //~^ ERROR cannot call a method on a raw pointer with an unknown pointee type [E0699] + let b = ptr as *mut _; + b.write(10); + //~^ ERROR cannot call a method on a raw pointer with an unknown pointee type [E0699] + (ptr as *mut i32).write(1000); // we know the type here + } +} -- cgit v1.2.3