1 files changed, 0 insertions, 72 deletions
diff --git a/vendor/proc-macro-error-attr/src/settings.rs b/vendor/proc-macro-error-attr/src/settings.rs
deleted file mode 100644
index 0b7ec766f..000000000
--- a/vendor/proc-macro-error-attr/src/settings.rs
+++ /dev/null
@@ -1,72 +0,0 @@
-use crate::{Error, Result};
-use proc_macro2::{Ident, Span, TokenStream, TokenTree};
-
-macro_rules! decl_settings {
-    ($($val:expr => $variant:ident),+ $(,)*) => {
-        #[derive(PartialEq)]
-        pub(crate) enum Setting {
-            $($variant),*
-        }
-
-        fn ident_to_setting(ident: Ident) -> Result<Setting> {
-            match &*ident.to_string() {
-                $($val => Ok(Setting::$variant),)*
-                _ => {
-                    let possible_vals = [$($val),*]
-                        .iter()
-                        .map(|v| format!("`{}`", v))
-                        .collect::<Vec<_>>()
-                        .join(", ");
-
-                    Err(Error::new(
-                        ident.span(),
-                        format!("unknown setting `{}`, expected one of {}", ident, possible_vals)))
-                }
-            }
-        }
-    };
-}
-
-decl_settings! {
-    "assert_unwind_safe" => AssertUnwindSafe,
-    "allow_not_macro"    => AllowNotMacro,
-    "proc_macro_hack"    => ProcMacroHack,
-}
-
-pub(crate) fn parse_settings(input: TokenStream) -> Result<Settings> {
-    let mut input = input.into_iter();
-    let mut res = Settings(Vec::new());
-    loop {
-        match input.next() {
-            Some(TokenTree::Ident(ident)) => {
-                res.0.push(ident_to_setting(ident)?);
-            }
-            None => return Ok(res),
-            other => {
-                let span = other.map_or(Span::call_site(), |tt| tt.span());
-                return Err(Error::new(span, "expected identifier".to_string()));
-            }
-        }
-
-        match input.next() {
-            Some(TokenTree::Punct(ref punct)) if punct.as_char() == ',' => {}
-            None => return Ok(res),
-            other => {
-                let span = other.map_or(Span::call_site(), |tt| tt.span());
-                return Err(Error::new(span, "expected `,`".to_string()));
-            }
-        }
-    }
-}
-
-pub(crate) struct Settings(Vec<Setting>);
-
-impl Settings {
-    pub(crate) fn is_set(&self, setting: Setting) -> bool {
-        self.0.iter().any(|s| *s == setting)
-    }
-
-    pub(crate) fn set(&mut self, setting: Setting) {
-        self.0.push(setting)
-    }
-}