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Reverse order of lookup

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This commit is contained in:
Niko Matsakis 2014-11-03 12:36:48 -05:00
parent 680d579ff0
commit f791473937
1 changed files with 3 additions and 3 deletions
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6
src/librustc/middle/typeck/check/mod.rs
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@ -2147,11 +2147,11 @@ fn try_overloaded_call<'a>(fcx: &FnCtxt,
_ => {}
}
// Try `FnOnce`, then `FnMut`, then `Fn`.
// Try the options that are least restrictive on the caller first.
for &(maybe_function_trait, method_name) in [
(fcx.tcx().lang_items.fn_once_trait(), token::intern("call_once")),
(fcx.tcx().lang_items.fn_trait(), token::intern("call")),
(fcx.tcx().lang_items.fn_mut_trait(), token::intern("call_mut")),
(fcx.tcx().lang_items.fn_trait(), token::intern("call"))
(fcx.tcx().lang_items.fn_once_trait(), token::intern("call_once")),
].iter() {
let function_trait = match maybe_function_trait {
None => continue,