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Use as_slice() method on option

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This commit is contained in:
Niko Matsakis 2014-01-15 19:35:38 -05:00
parent 419ac4a1b8
commit e71571a3cd
1 changed files with 6 additions and 6 deletions
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12
src/librustc/middle/trans/foreign.rs
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@ -282,20 +282,20 @@ pub fn trans_native_call<'a>(
// FIXME(#8357) We really ought to report a span here
ccx.sess.fatal(
format!("ABI string `{}` has no suitable ABI \
for target architecture",
fn_abis.user_string(ccx.tcx)));
for target architecture",
fn_abis.user_string(ccx.tcx)));
}
};
// A function pointer is called without the declaration available, so we have to apply
// any attributes with ABI implications directly to the call instruction. Right now, the
// only attribute we need to worry about is `sret`.
let sret_attr = [(1, StructRetAttribute)];
let attrs = if fn_type.ret_ty.is_indirect() {
sret_attr.as_slice()
let sret_attr = if fn_type.ret_ty.is_indirect() {
Some((1, StructRetAttribute))
} else {
&[]
None
};
let attrs = sret_attr.as_slice();
let llforeign_retval = CallWithConv(bcx, llfn, llargs_foreign, cc, attrs);
// If the function we just called does not use an outpointer,