Fiddling for rustc 1.29 update

1 files changed, 25 insertions, 0 deletions

diff --git a/rustc-1.29.0-src.patch b/rustc-1.29.0-src.patch
new file mode 100644
index 00000000..df6ef8f5
--- /dev/null
+++ b/rustc-1.29.0-src.patch
@@ -0,0 +1,25 @@
+--- src/libcore/intrinsics.rs
++++ src/libcore/intrinsics.rs
+@@ -678,5 +678,9 @@
+     pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize;
+ 
++    /// Obtain the length of a slice pointer
++    #[cfg(rust_compiler="mrustc")]
++    pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize;
++
+     /// Gets a static string slice containing the name of a type.
+     pub fn type_name<T: ?Sized>() -> &'static str;
+
+--- src/libcore/slice/mod.rs
++++ src/libcore/slice/mod.rs
+@@ -413,5 +413,7 @@
+     pub const fn len(&self) -> usize {
+-        unsafe {
+-            Repr { rust: self }.raw.len
+-        }
++        #[cfg(not(rust_compiler="mrustc"))]
++        let rv = unsafe { Repr { rust: self }.raw.len };
++        #[cfg(rust_compiler="mrustc")]
++        let rv = unsafe { ::intrinsics::mrustc_slice_len(self) };
++        rv
+     }