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-rw-r--r--vendor/serde_derive/src/dummy.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/vendor/serde_derive/src/dummy.rs b/vendor/serde_derive/src/dummy.rs
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+++ b/vendor/serde_derive/src/dummy.rs
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+use proc_macro2::TokenStream;
+use quote::quote;
+
+pub fn wrap_in_const(serde_path: Option<&syn::Path>, code: TokenStream) -> TokenStream {
+ let use_serde = match serde_path {
+ Some(path) => quote! {
+ use #path as _serde;
+ },
+ None => quote! {
+ #[allow(unused_extern_crates, clippy::useless_attribute)]
+ extern crate serde as _serde;
+ },
+ };
+
+ quote! {
+ #[doc(hidden)]
+ #[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
+ const _: () = {
+ #use_serde
+ #code
+ };
+ }
+}