From 605680530b229d008ea54485e26cf4242e008c1f Mon Sep 17 00:00:00 2001
From: Devin R <devin.ragotzy@gmail.com>
Date: Wed, 15 Jul 2020 15:56:17 -0400
Subject: [PATCH] Add ability to feature gate fields in ruma_api! macro

---
 ruma-api-macros/src/api/request.rs  | 3 +++
 ruma-api-macros/src/api/response.rs | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/ruma-api-macros/src/api/request.rs b/ruma-api-macros/src/api/request.rs
index 3e6395b6..95e3ef0c 100644
--- a/ruma-api-macros/src/api/request.rs
+++ b/ruma-api-macros/src/api/request.rs
@@ -168,8 +168,11 @@ impl Request {
                 let field_name =
                     field.ident.as_ref().expect("expected field to have an identifier");
                 let span = field.span();
+                let cfg_attrs =
+                    field.attrs.iter().filter(|a| a.path.is_ident("cfg")).collect::<Vec<_>>();
 
                 quote_spanned! {span=>
+                    #( #cfg_attrs )*
                     #field_name: #src.#field_name
                 }
             })
diff --git a/ruma-api-macros/src/api/response.rs b/ruma-api-macros/src/api/response.rs
index 78330717..7c9f64b7 100644
--- a/ruma-api-macros/src/api/response.rs
+++ b/ruma-api-macros/src/api/response.rs
@@ -43,10 +43,13 @@ impl Response {
             let field = response_field.field();
             let field_name = field.ident.as_ref().expect("expected field to have an identifier");
             let span = field.span();
+            let cfg_attrs =
+                field.attrs.iter().filter(|a| a.path.is_ident("cfg")).collect::<Vec<_>>();
 
             match response_field {
                 ResponseField::Body(_) => {
                     quote_spanned! {span=>
+                        #( #cfg_attrs )*
                         #field_name: response_body.#field_name
                     }
                 }
@@ -114,8 +117,11 @@ impl Response {
                     let field_name =
                         field.ident.as_ref().expect("expected field to have an identifier");
                     let span = field.span();
+                    let cfg_attrs =
+                        field.attrs.iter().filter(|a| a.path.is_ident("cfg")).collect::<Vec<_>>();
 
                     Some(quote_spanned! {span=>
+                        #( #cfg_attrs )*
                         #field_name: response.#field_name
                     })
                 } else {