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get rid of unwrap

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This commit is contained in:
vms 2020-07-02 11:38:20 +03:00
parent 79d7e181ee
commit 9839e54383
1 changed files with 10 additions and 5 deletions
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15
crates/macro/src/parse_macro_input/item_foreign_mod.rs
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@ -50,12 +50,17 @@ impl ParseMacroInput for syn::ItemForeignMod {
.into_iter()
.filter_map(|attr| attr.parse_meta().ok())
.filter(|meta| meta.path().is_ident(LINK_DIRECTIVE_NAME))
.filter_map(|meta| match meta {
syn::Meta::List(meta_list) => Some(meta_list),
_ => None,
.filter_map(|meta| {
let pair = match meta {
syn::Meta::List(mut meta_list) if meta_list.nested.len() == 1 => {
meta_list.nested.pop().unwrap()
}
_ => return None,
};
Some(pair.into_tuple().0)
})
.filter_map(|meta_list| match meta_list.nested.first().unwrap() {
syn::NestedMeta::Meta(meta) => Some(meta.clone()),
.filter_map(|nested| match nested {
syn::NestedMeta::Meta(meta) => Some(meta),
_ => None,
})
.filter(|meta| meta.path().is_ident(WASM_IMPORT_MODULE_DIRECTIVE_NAME))