10 files changed, 52 insertions, 20 deletions
diff --git a/vendor/quote/tests/test.rs b/vendor/quote/tests/test.rs
index 52ec7bcfb..eab4f55aa 100644
--- a/vendor/quote/tests/test.rs
+++ b/vendor/quote/tests/test.rs
@@ -1,14 +1,17 @@
 #![allow(
     clippy::disallowed_names,
+    clippy::let_underscore_untyped,
     clippy::shadow_unrelated,
     clippy::unseparated_literal_suffix,
     clippy::used_underscore_binding
 )]
 
+extern crate proc_macro;
+
 use std::borrow::Cow;
 use std::collections::BTreeSet;
 
-use proc_macro2::{Ident, Span, TokenStream};
+use proc_macro2::{Delimiter, Group, Ident, Span, TokenStream};
 use quote::{format_ident, quote, quote_spanned, TokenStreamExt};
 
 struct X;
@@ -517,3 +520,30 @@ fn test_quote_raw_id() {
     let id = quote!(r#raw_id);
     assert_eq!(id.to_string(), "r#raw_id");
 }
+
+#[test]
+fn test_type_inference_for_span() {
+    trait CallSite {
+        fn get() -> Self;
+    }
+
+    impl CallSite for Span {
+        fn get() -> Self {
+            Span::call_site()
+        }
+    }
+
+    let span = Span::call_site();
+    let _ = quote_spanned!(span=> ...);
+
+    let delim_span = Group::new(Delimiter::Parenthesis, TokenStream::new()).delim_span();
+    let _ = quote_spanned!(delim_span=> ...);
+
+    let inferred = CallSite::get();
+    let _ = quote_spanned!(inferred=> ...);
+
+    if false {
+        let proc_macro_span = proc_macro::Span::call_site();
+        let _ = quote_spanned!(proc_macro_span.into()=> ...);
+    }
+}
diff --git a/vendor/quote/tests/ui/does-not-have-iter-interpolated-dup.stderr b/vendor/quote/tests/ui/does-not-have-iter-interpolated-dup.stderr
index 8087879af..57d8bf0bd 100644
--- a/vendor/quote/tests/ui/does-not-have-iter-interpolated-dup.stderr
+++ b/vendor/quote/tests/ui/does-not-have-iter-interpolated-dup.stderr
@@ -4,7 +4,7 @@ error[E0308]: mismatched types
 8 |     quote!(#(#nonrep #nonrep)*);
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |     |
-  |     expected struct `HasIterator`, found struct `ThereIsNoIteratorInRepetition`
+  |     expected `HasIterator`, found `ThereIsNoIteratorInRepetition`
   |     expected due to this
   |
   = note: this error originates in the macro `$crate::quote_token_with_context` which comes from the expansion of the macro `quote` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/quote/tests/ui/does-not-have-iter-interpolated.stderr b/vendor/quote/tests/ui/does-not-have-iter-interpolated.stderr
index 2dcf206dd..8ec2d40ef 100644
--- a/vendor/quote/tests/ui/does-not-have-iter-interpolated.stderr
+++ b/vendor/quote/tests/ui/does-not-have-iter-interpolated.stderr
@@ -4,7 +4,7 @@ error[E0308]: mismatched types
 8 |     quote!(#(#nonrep)*);
   |     ^^^^^^^^^^^^^^^^^^^
   |     |
-  |     expected struct `HasIterator`, found struct `ThereIsNoIteratorInRepetition`
+  |     expected `HasIterator`, found `ThereIsNoIteratorInRepetition`
   |     expected due to this
   |
   = note: this error originates in the macro `$crate::quote_token_with_context` which comes from the expansion of the macro `quote` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/quote/tests/ui/does-not-have-iter-separated.stderr b/vendor/quote/tests/ui/does-not-have-iter-separated.stderr
index 87a19fe07..7c6e30f2b 100644
--- a/vendor/quote/tests/ui/does-not-have-iter-separated.stderr
+++ b/vendor/quote/tests/ui/does-not-have-iter-separated.stderr
@@ -4,7 +4,7 @@ error[E0308]: mismatched types
 4 |     quote!(#(a b),*);
   |     ^^^^^^^^^^^^^^^^
   |     |
-  |     expected struct `HasIterator`, found struct `ThereIsNoIteratorInRepetition`
+  |     expected `HasIterator`, found `ThereIsNoIteratorInRepetition`
   |     expected due to this
   |
   = note: this error originates in the macro `$crate::quote_token_with_context` which comes from the expansion of the macro `quote` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/quote/tests/ui/does-not-have-iter.stderr b/vendor/quote/tests/ui/does-not-have-iter.stderr
index 32aa62d9b..0b13e5cb7 100644
--- a/vendor/quote/tests/ui/does-not-have-iter.stderr
+++ b/vendor/quote/tests/ui/does-not-have-iter.stderr
@@ -4,7 +4,7 @@ error[E0308]: mismatched types
 4 |     quote!(#(a b)*);
   |     ^^^^^^^^^^^^^^^
   |     |
-  |     expected struct `HasIterator`, found struct `ThereIsNoIteratorInRepetition`
+  |     expected `HasIterator`, found `ThereIsNoIteratorInRepetition`
   |     expected due to this
   |
   = note: this error originates in the macro `$crate::quote_token_with_context` which comes from the expansion of the macro `quote` (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/quote/tests/ui/not-quotable.rs b/vendor/quote/tests/ui/not-quotable.rs
index 220542d84..f991c1883 100644
--- a/vendor/quote/tests/ui/not-quotable.rs
+++ b/vendor/quote/tests/ui/not-quotable.rs
@@ -3,5 +3,5 @@ use std::net::Ipv4Addr;
 
 fn main() {
     let ip = Ipv4Addr::LOCALHOST;
-    _ = quote! { #ip };
+    let _ = quote! { #ip };
 }
diff --git a/vendor/quote/tests/ui/not-quotable.stderr b/vendor/quote/tests/ui/not-quotable.stderr
index c323d99b7..79d46548d 100644
--- a/vendor/quote/tests/ui/not-quotable.stderr
+++ b/vendor/quote/tests/ui/not-quotable.stderr
@@ -1,11 +1,11 @@
 error[E0277]: the trait bound `Ipv4Addr: ToTokens` is not satisfied
- --> tests/ui/not-quotable.rs:6:9
+ --> tests/ui/not-quotable.rs:6:13
   |
-6 |     _ = quote! { #ip };
-  |         ^^^^^^^^^^^^^^
-  |         |
-  |         the trait `ToTokens` is not implemented for `Ipv4Addr`
-  |         required by a bound introduced by this call
+6 |     let _ = quote! { #ip };
+  |             ^^^^^^^^^^^^^^
+  |             |
+  |             the trait `ToTokens` is not implemented for `Ipv4Addr`
+  |             required by a bound introduced by this call
   |
   = help: the following other types implement trait `ToTokens`:
             &'a T
diff --git a/vendor/quote/tests/ui/not-repeatable.rs b/vendor/quote/tests/ui/not-repeatable.rs
index c1debf5f8..a8f0fe773 100644
--- a/vendor/quote/tests/ui/not-repeatable.rs
+++ b/vendor/quote/tests/ui/not-repeatable.rs
@@ -4,5 +4,5 @@ struct Ipv4Addr;
 
 fn main() {
     let ip = Ipv4Addr;
-    _ = quote! { #(#ip)* };
+    let _ = quote! { #(#ip)* };
 }
diff --git a/vendor/quote/tests/ui/not-repeatable.stderr b/vendor/quote/tests/ui/not-repeatable.stderr
index 264a89f9e..2ed1da043 100644
--- a/vendor/quote/tests/ui/not-repeatable.stderr
+++ b/vendor/quote/tests/ui/not-repeatable.stderr
@@ -1,5 +1,5 @@
 error[E0599]: the method `quote_into_iter` exists for struct `Ipv4Addr`, but its trait bounds were not satisfied
- --> tests/ui/not-repeatable.rs:7:9
+ --> tests/ui/not-repeatable.rs:7:13
   |
 3 | struct Ipv4Addr;
   | ---------------
@@ -10,8 +10,8 @@ error[E0599]: the method `quote_into_iter` exists for struct `Ipv4Addr`, but its
   | doesn't satisfy `Ipv4Addr: ext::RepIteratorExt`
   | doesn't satisfy `Ipv4Addr: ext::RepToTokensExt`
 ...
-7 |     _ = quote! { #(#ip)* };
-  |         ^^^^^^^^^^^^^^^^^^ method cannot be called on `Ipv4Addr` due to unsatisfied trait bounds
+7 |     let _ = quote! { #(#ip)* };
+  |             ^^^^^^^^^^^^^^^^^^ method cannot be called on `Ipv4Addr` due to unsatisfied trait bounds
   |
   = note: the following trait bounds were not satisfied:
           `Ipv4Addr: Iterator`
diff --git a/vendor/quote/tests/ui/wrong-type-span.stderr b/vendor/quote/tests/ui/wrong-type-span.stderr
index c774a4c3a..12ad30770 100644
--- a/vendor/quote/tests/ui/wrong-type-span.stderr
+++ b/vendor/quote/tests/ui/wrong-type-span.stderr
@@ -1,8 +1,10 @@
 error[E0308]: mismatched types
- --> tests/ui/wrong-type-span.rs:6:20
+ --> tests/ui/wrong-type-span.rs:6:5
   |
 6 |     quote_spanned!(span=> #x);
-  |     ---------------^^^^------
-  |     |              |
-  |     |              expected struct `Span`, found `&str`
+  |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+  |     |
+  |     expected `Span`, found `&str`
   |     expected due to this
+  |
+  = note: this error originates in the macro `quote_spanned` (in Nightly builds, run with -Z macro-backtrace for more info)