Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3 insertions, 54 deletions

diff --git a/vendor/syn/src/parse_macro_input.rs b/vendor/syn/src/parse_macro_input.rs
index 6163cd70a..6f1562f4b 100644
--- a/vendor/syn/src/parse_macro_input.rs
+++ b/vendor/syn/src/parse_macro_input.rs
@@ -40,7 +40,7 @@
 ///     let input = parse_macro_input!(tokens as MyMacroInput);
 ///
 ///     /* ... */
-/// #   "".parse().unwrap()
+/// #   TokenStream::new()
 /// }
 /// ```
 ///
@@ -76,7 +76,7 @@
 ///     let input = parse_macro_input!(tokens with MyMacroInput::parse_alternate);
 ///
 ///     /* ... */
-/// #   "".parse().unwrap()
+/// #   TokenStream::new()
 /// }
 /// ```
 ///
@@ -107,7 +107,7 @@
 #[cfg_attr(doc_cfg, doc(cfg(all(feature = "parsing", feature = "proc-macro"))))]
 macro_rules! parse_macro_input {
     ($tokenstream:ident as $ty:ty) => {
-        match $crate::parse_macro_input::parse::<$ty>($tokenstream) {
+        match $crate::parse::<$ty>($tokenstream) {
             $crate::__private::Ok(data) => data,
             $crate::__private::Err(err) => {
                 return $crate::__private::TokenStream::from(err.to_compile_error());
@@ -126,54 +126,3 @@ macro_rules! parse_macro_input {
         $crate::parse_macro_input!($tokenstream as _)
     };
 }
-
-////////////////////////////////////////////////////////////////////////////////
-// Can parse any type that implements Parse.
-
-use crate::parse::{Parse, ParseStream, Parser, Result};
-use proc_macro::TokenStream;
-
-// Not public API.
-#[doc(hidden)]
-pub fn parse<T: ParseMacroInput>(token_stream: TokenStream) -> Result<T> {
-    T::parse.parse(token_stream)
-}
-
-// Not public API.
-#[doc(hidden)]
-pub trait ParseMacroInput: Sized {
-    fn parse(input: ParseStream) -> Result<Self>;
-}
-
-impl<T: Parse> ParseMacroInput for T {
-    fn parse(input: ParseStream) -> Result<Self> {
-        <T as Parse>::parse(input)
-    }
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// Any other types that we want `parse_macro_input!` to be able to parse.
-
-#[cfg(any(feature = "full", feature = "derive"))]
-use crate::AttributeArgs;
-
-#[cfg(any(feature = "full", feature = "derive"))]
-impl ParseMacroInput for AttributeArgs {
-    fn parse(input: ParseStream) -> Result<Self> {
-        let mut metas = Vec::new();
-
-        loop {
-            if input.is_empty() {
-                break;
-            }
-            let value = input.parse()?;
-            metas.push(value);
-            if input.is_empty() {
-                break;
-            }
-            input.parse::<Token![,]>()?;
-        }
-
-        Ok(metas)
-    }
-}