From e26f57d0d340fce1f69bbb7211643e7a5012b071 Mon Sep 17 00:00:00 2001
From: Alekos Filini <alekos.filini@gmail.com>
Date: Mon, 29 Mar 2021 13:41:00 +0200
Subject: [PATCH 1/3] Correctly consume tokens when parsing `js_namespace`

`syn` < 1.0.66 would consume the `AnyIdent` anyway while trying to parse
the `ExprArray`.

Now due to a refactoring they did, they (correctly) leave the `ParseBuffer`
untouched if the input is not a valid `ExprArray`, so we should avoid forking
the input buffer and just use the same for both tries, otherwise the unwanted
tokens left in there would make `Punctuated` break soon after.

Fixes #2508
---
 crates/macro-support/src/parser.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/crates/macro-support/src/parser.rs b/crates/macro-support/src/parser.rs
index 22c72042b79..bf3ff55aaad 100644
--- a/crates/macro-support/src/parser.rs
+++ b/crates/macro-support/src/parser.rs
@@ -299,7 +299,6 @@ impl Parse for BindgenAttr {
 
             (@parser $variant:ident(Span, Vec<String>, Vec<Span>)) => ({
                 input.parse::<Token![=]>()?;
-                let input_before_parse = input.fork();
                 let (vals, spans) = match input.parse::<syn::ExprArray>() {
                     Ok(exprs) => {
                         let mut vals = vec![];
@@ -320,7 +319,7 @@ impl Parse for BindgenAttr {
                         (vals, spans)
                     },
                     Err(_) => {
-                        let ident = input_before_parse.parse::<AnyIdent>()?.0;
+                        let ident = input.parse::<AnyIdent>()?.0;
                         (vec![ident.to_string()], vec![ident.span()])
                     }
                 };

From 0cf36e6b216654cc460954dffcce4061b96f1dc6 Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Mon, 29 Mar 2021 06:59:03 -0700
Subject: [PATCH 2/3] Update nightly used on CI

---
 azure-pipelines.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index d9fa449d3ec..15d285a1636 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -87,7 +87,7 @@ jobs:
     steps:
       - template: ci/azure-install-rust.yml
         parameters:
-          toolchain: nightly-2021-01-23
+          toolchain: nightly-2021-03-28
       - template: ci/azure-install-node.yml
       - script: cargo test --target wasm32-unknown-unknown --features nightly --test wasm
 

From 94b119f87eeb454d88a361a7878b228fcacdc27a Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Mon, 29 Mar 2021 06:59:30 -0700
Subject: [PATCH 3/3] Update syn version dependency

---
 crates/macro-support/Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/macro-support/Cargo.toml b/crates/macro-support/Cargo.toml
index aadaaf97d3a..f1728537fa0 100644
--- a/crates/macro-support/Cargo.toml
+++ b/crates/macro-support/Cargo.toml
@@ -17,7 +17,7 @@ extra-traits = ["syn/extra-traits"]
 strict-macro = []
 
 [dependencies]
-syn = { version = '1.0.27', features = ['visit', 'full'] }
+syn = { version = '1.0.67', features = ['visit', 'full'] }
 quote = '1.0'
 proc-macro2 = "1.0"
 wasm-bindgen-backend = { path = "../backend", version = "=0.2.72" }