From 1f6abb7fbae35dbd036032a6ea2a9e04307f1f55 Mon Sep 17 00:00:00 2001
From: Jade <software@lfcode.ca>
Date: Sat, 12 Jun 2021 05:16:22 -0700
Subject: Fix libcore not being included in rust-lang/rust module tree

If you are opening libcore from rust-lang/rust as opposed to e.g.
goto definition from some other crate which would use the sysroot
instance of libcore, a `#![cfg(not(test))]` would previously have made
all the code excluded from the module tree, breaking the editor
experience.

This puts in a slight hack that checks for the crate name "core" and
turns off `#[cfg(test)]`.
---
 crates/cfg/src/lib.rs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'crates/cfg/src')

diff --git a/crates/cfg/src/lib.rs b/crates/cfg/src/lib.rs
index 03b8dd767..87bf0c925 100644
--- a/crates/cfg/src/lib.rs
+++ b/crates/cfg/src/lib.rs
@@ -1,4 +1,4 @@
-//! cfg defines conditional compiling options, `cfg` attibute parser and evaluator
+//! cfg defines conditional compiling options, `cfg` attribute parser and evaluator
 
 mod cfg_expr;
 mod dnf;
@@ -59,6 +59,20 @@ pub struct CfgDiff {
 }
 
 impl CfgDiff {
+    /// Create a new CfgDiff. Will return None if the same item appears more than once in the set
+    /// of both.
+    pub fn new(enable: Vec<CfgAtom>, disable: Vec<CfgAtom>) -> Option<CfgDiff> {
+        let mut occupied = FxHashSet::default();
+        for item in enable.iter().chain(disable.iter()) {
+            if !occupied.insert(item) {
+                // was present
+                return None;
+            }
+        }
+
+        Some(CfgDiff { enable, disable })
+    }
+
     /// Returns the total number of atoms changed by this diff.
     pub fn len(&self) -> usize {
         self.enable.len() + self.disable.len()
-- 
cgit v1.2.3


From 8b77e2692cd97552b1b8d66eb51cec69695b3a5b Mon Sep 17 00:00:00 2001
From: Jade <software@lfcode.ca>
Date: Sun, 13 Jun 2021 21:41:46 -0700
Subject: Implement a config override for the default #[cfg(test)] in cargo
 crates

Fixes crates which vanish when the 'test' cfg atom is set.

Fix #7243.
Fix #9203.
Fix #7225.
---
 crates/cfg/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'crates/cfg/src')

diff --git a/crates/cfg/src/lib.rs b/crates/cfg/src/lib.rs
index 87bf0c925..916d39a0b 100644
--- a/crates/cfg/src/lib.rs
+++ b/crates/cfg/src/lib.rs
@@ -52,6 +52,7 @@ impl CfgOptions {
     }
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct CfgDiff {
     // Invariants: No duplicates, no atom that's both in `enable` and `disable`.
     enable: Vec<CfgAtom>,
-- 
cgit v1.2.3