libfetchers: Rename immutable -> locked

This is more consistent with flake terminology.

2 files changed, 3 insertions, 3 deletions

diff --git a/src/nix/profile.cc b/src/nix/profile.cc
index 508cbd336..0e8dc4380 100644
--- a/src/nix/profile.cc
+++ b/src/nix/profile.cc
@@ -415,7 +415,7 @@ struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProf
         for (size_t i = 0; i < manifest.elements.size(); ++i) {
             auto & element(manifest.elements[i]);
             if (element.source
-                && !element.source->originalRef.input.isImmutable()
+                && !element.source->originalRef.input.isLocked()
                 && matches(*store, element, i, matchers))
             {
                 upgradedCount++;
diff --git a/src/nix/repl.cc b/src/nix/repl.cc
index 60454471d..575eb0c4c 100644
--- a/src/nix/repl.cc
+++ b/src/nix/repl.cc
@@ -627,8 +627,8 @@ void NixRepl::loadFlake(const std::string & flakeRefS)
         throw Error("cannot use ':load-flake' without a path specified. (Use '.' for the current working directory.)");
 
     auto flakeRef = parseFlakeRef(flakeRefS, absPath("."), true);
-    if (evalSettings.pureEval && !flakeRef.input.isImmutable())
-        throw Error("cannot use ':load-flake' on mutable flake reference '%s' (use --impure to override)", flakeRefS);
+    if (evalSettings.pureEval && !flakeRef.input.isLocked())
+        throw Error("cannot use ':load-flake' on locked flake reference '%s' (use --impure to override)", flakeRefS);
 
     Value v;