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Don't ICE if an argument in a default method doesn't have a name. Closes #8417.

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This commit is contained in:
Michael Sullivan 2013-08-19 15:49:37 -07:00
parent 5003f607ec
commit 48a682398a
1 changed files with 1 additions and 1 deletions
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src/librustc/middle/liveness.rs
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@ -1617,7 +1617,7 @@ impl Liveness {
pub fn should_warn(&self, var: Variable) -> Option<@str> {
let name = self.ir.variable_name(var);
if name[0] == ('_' as u8) { None } else { Some(name) }
if name.len() == 0 || name[0] == ('_' as u8) { None } else { Some(name) }
}
pub fn warn_about_unused_args(&self, decl: &fn_decl, entry_ln: LiveNode) {