From 3d169bd3f4cdc2dc3dd09eadbbc17c19214d69f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lauren=C8=9Biu=20Nicola?= <lnicola@dend.ro>
Date: Mon, 3 Aug 2020 13:57:04 +0300
Subject: Add track_env_var to the proc macro server

---
 crates/proc_macro_srv/src/rustc_server.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'crates/proc_macro_srv/src/rustc_server.rs')

diff --git a/crates/proc_macro_srv/src/rustc_server.rs b/crates/proc_macro_srv/src/rustc_server.rs
index 7d1695c86..c5fe3591e 100644
--- a/crates/proc_macro_srv/src/rustc_server.rs
+++ b/crates/proc_macro_srv/src/rustc_server.rs
@@ -242,6 +242,8 @@ impl TokenStreamBuilder {
     }
 }
 
+pub struct FreeFunctions;
+
 #[derive(Clone)]
 pub struct TokenStreamIter {
     trees: IntoIter<TokenTree>,
@@ -254,6 +256,7 @@ pub struct Rustc {
 }
 
 impl server::Types for Rustc {
+    type FreeFunctions = FreeFunctions;
     type TokenStream = TokenStream;
     type TokenStreamBuilder = TokenStreamBuilder;
     type TokenStreamIter = TokenStreamIter;
@@ -267,6 +270,13 @@ impl server::Types for Rustc {
     type MultiSpan = Vec<Span>;
 }
 
+impl server::FreeFunctions for Rustc {
+    fn track_env_var(&mut self, _var: &str, _value: Option<&str>) {
+        // FIXME: track env var accesses
+        // https://github.com/rust-lang/rust/pull/71858
+    }
+}
+
 impl server::TokenStream for Rustc {
     fn new(&mut self) -> Self::TokenStream {
         Self::TokenStream::new()
-- 
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