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| author | Ellen <supbscripter@gmail.com> | 2022-04-27 08:51:33 +0100 |
|---|---|---|
| committer | Ellen <supbscripter@gmail.com> | 2022-04-27 08:51:33 +0100 |
| commit | f697955c1eb72e3dac6b6aafa411e58cb8d18706 (patch) | |
| tree | 7c4144db47e778adc08e4bd86109d1b4070ce004 /compiler/rustc_expand/src | |
| parent | de1026a67b0a3f5d6b61a1f77093af97d4799376 (diff) | |
| download | rust-f697955c1eb72e3dac6b6aafa411e58cb8d18706.tar.gz rust-f697955c1eb72e3dac6b6aafa411e58cb8d18706.zip | |
tut tut tut
Diffstat (limited to 'compiler/rustc_expand/src')
| -rw-r--r-- | compiler/rustc_expand/src/base.rs | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 3799623563f..ae1b50a4176 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -1272,9 +1272,7 @@ pub fn parse_macro_name_and_helper_attrs( // Once we've located the `#[proc_macro_derive]` attribute, verify // that it's of the form `#[proc_macro_derive(Foo)]` or // `#[proc_macro_derive(Foo, attributes(A, ..))]` - let Some(list) = attr.meta_item_list() else { - return None; - }; + let list = attr.meta_item_list()?; if list.len() != 1 && list.len() != 2 { diag.span_err(attr.span, "attribute must have either one or two arguments"); return None; |