Rework SESSION_GLOBALS API to prevent overwriting it

2021-05-05 21:31:25 +02:00
parent 0cd0709f19
commit a2654fb64c
27 changed files with 146 additions and 100 deletions
--- a/compiler/rustc_interface/src/interface.rs
+++ b/compiler/rustc_interface/src/interface.rs
@@ -76,7 +76,7 @@ impl Compiler {

 /// Converts strings provided as `--cfg [cfgspec]` into a `crate_cfg`.
 pub fn parse_cfgspecs(cfgspecs: Vec<String>) -> FxHashSet<(String, Option<String>)> {
-    rustc_span::with_default_session_globals(move || {
+    rustc_span::create_default_session_if_not_set_then(move |_| {
        let cfg = cfgspecs
            .into_iter()
            .map(|s| {