29 lines
1001 B
Diff
29 lines
1001 B
Diff
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See https://github.com/thepowersgang/mrustc/archive/v0.8.0.tar.gz
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--- rustc-1.19.0-src-orig/src/libcore/intrinsics.rs
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+++ rustc-1.19.0-src/src/libcore/intrinsics.rs
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@@ -678,5 +678,9 @@
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pub fn min_align_of_val<T: ?Sized>(_: &T) -> usize;
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+ /// Obtain the length of a slice pointer
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+ #[cfg(rust_compiler="mrustc")]
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+ pub fn mrustc_slice_len<T>(pointer: *const [T]) -> usize;
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+
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/// Gets a static string slice containing the name of a type.
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pub fn type_name<T: ?Sized>() -> &'static str;
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--- rustc-1.19.0-src-orig/src/libcore/slice/mod.rs
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+++ rustc-1.19.0-src/src/libcore/slice/mod.rs
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@@ -413,6 +413,8 @@
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#[inline]
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fn len(&self) -> usize {
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- unsafe {
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- mem::transmute::<&[T], Repr<T>>(self).len
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- }
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+ #[cfg(not(rust_compiler="mrustc"))]
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+ let rv = unsafe { mem::transmute::<&[T], Repr<T>>(self).len };
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+ #[cfg(rust_compiler="mrustc")]
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+ let rv = unsafe { ::intrinsics::mrustc_slice_len(self) };
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+ rv
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}
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