diff options
Diffstat (limited to 'src/librustc_trans/assert_module_sources.rs')
| -rw-r--r-- | src/librustc_trans/assert_module_sources.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc_trans/assert_module_sources.rs b/src/librustc_trans/assert_module_sources.rs index 7a41f834109..8528482c785 100644 --- a/src/librustc_trans/assert_module_sources.rs +++ b/src/librustc_trans/assert_module_sources.rs @@ -113,7 +113,7 @@ impl<'a, 'tcx> AssertModuleSource<'a, 'tcx> { } fn field(&self, attr: &ast::Attribute, name: &str) -> ast::Name { - for item in attr.meta_item_list().unwrap_or(&[]) { + for item in attr.meta_item_list().unwrap_or_else(Vec::new) { if item.check_name(name) { if let Some(value) = item.value_str() { return value; |