From c0b2eee9f2afc64ba42aa940c81213517b4a337c Mon Sep 17 00:00:00 2001
From: Stephen Chung <schungx@live.com>
Date: Mon, 29 Mar 2021 12:46:46 +0800
Subject: [PATCH] Fix syn regression.

---
 codegen/Cargo.toml         | 2 +-
 codegen/src/rhai_module.rs | 6 ++++--
 codegen/src/test/module.rs | 6 ++++--
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/codegen/Cargo.toml b/codegen/Cargo.toml
index 94b0b2cc..c4b22ab2 100644
--- a/codegen/Cargo.toml
+++ b/codegen/Cargo.toml
@@ -21,5 +21,5 @@ trybuild = "1"
 
 [dependencies]
 proc-macro2 = "1"
-syn = { version = "1", features = ["full", "parsing", "printing", "proc-macro", "extra-traits"] }
+syn = { version = "1.0", features = ["full", "parsing", "printing", "proc-macro", "extra-traits"] }
 quote = "1"
diff --git a/codegen/src/rhai_module.rs b/codegen/src/rhai_module.rs
index 1fafd99e..77025db1 100644
--- a/codegen/src/rhai_module.rs
+++ b/codegen/src/rhai_module.rs
@@ -52,7 +52,8 @@ pub fn generate_body(
             .collect();
         add_mod_blocks.push(
             syn::parse2::<syn::ExprBlock>(quote! {
-                #(#cfg_attrs)* {
+                {
+                    #(#cfg_attrs)*
                     m.set_sub_module(#exported_name, self::#module_name::rhai_module_generate());
                 }
             })
@@ -60,7 +61,8 @@ pub fn generate_body(
         );
         set_flattened_mod_blocks.push(
             syn::parse2::<syn::ExprBlock>(quote! {
-                #(#cfg_attrs)* {
+                {
+                    #(#cfg_attrs)*
                     self::#module_name::rhai_generate_into_module(m, flatten);
                 }
             })
diff --git a/codegen/src/test/module.rs b/codegen/src/test/module.rs
index fdf4cf12..410f25ed 100644
--- a/codegen/src/test/module.rs
+++ b/codegen/src/test/module.rs
@@ -1276,11 +1276,13 @@ mod generate_tests {
                 #[allow(unused_mut)]
                 pub fn rhai_generate_into_module(m: &mut Module, flatten: bool) {
                     if flatten {
-                        #[cfg(not(feature = "no_float"))] {
+                        {
+                            #[cfg(not(feature = "no_float"))]
                             self::it_is::rhai_generate_into_module(m, flatten);
                         }
                     } else {
-                        #[cfg(not(feature = "no_float"))] {
+                        {
+                            #[cfg(not(feature = "no_float"))]
                             m.set_sub_module("it_is", self::it_is::rhai_module_generate());
                         }
                     }