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-rw-r--r--third_party/nix/src/nix/eval.cc92
1 files changed, 36 insertions, 56 deletions
diff --git a/third_party/nix/src/nix/eval.cc b/third_party/nix/src/nix/eval.cc
index b7058361cb..34d91ba1f0 100644
--- a/third_party/nix/src/nix/eval.cc
+++ b/third_party/nix/src/nix/eval.cc
@@ -1,77 +1,57 @@
+#include "eval.hh"
 #include "command.hh"
 #include "common-args.hh"
+#include "json.hh"
+#include "progress-bar.hh"
 #include "shared.hh"
 #include "store-api.hh"
-#include "eval.hh"
-#include "json.hh"
 #include "value-to-json.hh"
-#include "progress-bar.hh"
 
 using namespace nix;
 
-struct CmdEval : MixJSON, InstallableCommand
-{
-    bool raw = false;
+struct CmdEval : MixJSON, InstallableCommand {
+  bool raw = false;
 
-    CmdEval()
-    {
-        mkFlag(0, "raw", "print strings unquoted", &raw);
-    }
+  CmdEval() { mkFlag(0, "raw", "print strings unquoted", &raw); }
 
-    std::string name() override
-    {
-        return "eval";
-    }
+  std::string name() override { return "eval"; }
 
-    std::string description() override
-    {
-        return "evaluate a Nix expression";
-    }
+  std::string description() override { return "evaluate a Nix expression"; }
 
-    Examples examples() override
-    {
-        return {
-            Example{
-                "To evaluate a Nix expression given on the command line:",
-                "nix eval '(1 + 2)'"
-            },
-            Example{
-                "To evaluate a Nix expression from a file or URI:",
-                "nix eval -f channel:nixos-17.09 hello.name"
-            },
-            Example{
-                "To get the current version of Nixpkgs:",
-                "nix eval --raw nixpkgs.lib.nixpkgsVersion"
-            },
-            Example{
-                "To print the store path of the Hello package:",
-                "nix eval --raw nixpkgs.hello"
-            },
-        };
-    }
+  Examples examples() override {
+    return {
+        Example{"To evaluate a Nix expression given on the command line:",
+                "nix eval '(1 + 2)'"},
+        Example{"To evaluate a Nix expression from a file or URI:",
+                "nix eval -f channel:nixos-17.09 hello.name"},
+        Example{"To get the current version of Nixpkgs:",
+                "nix eval --raw nixpkgs.lib.nixpkgsVersion"},
+        Example{"To print the store path of the Hello package:",
+                "nix eval --raw nixpkgs.hello"},
+    };
+  }
 
-    void run(ref<Store> store) override
-    {
-        if (raw && json)
-            throw UsageError("--raw and --json are mutually exclusive");
+  void run(ref<Store> store) override {
+    if (raw && json)
+      throw UsageError("--raw and --json are mutually exclusive");
 
-        auto state = getEvalState();
+    auto state = getEvalState();
 
-        auto v = installable->toValue(*state);
-        PathSet context;
+    auto v = installable->toValue(*state);
+    PathSet context;
 
-        stopProgressBar();
+    stopProgressBar();
 
-        if (raw) {
-            std::cout << state->coerceToString(noPos, *v, context);
-        } else if (json) {
-            JSONPlaceholder jsonOut(std::cout);
-            printValueAsJSON(*state, true, *v, jsonOut, context);
-        } else {
-            state->forceValueDeep(*v);
-            std::cout << *v << "\n";
-        }
+    if (raw) {
+      std::cout << state->coerceToString(noPos, *v, context);
+    } else if (json) {
+      JSONPlaceholder jsonOut(std::cout);
+      printValueAsJSON(*state, true, *v, jsonOut, context);
+    } else {
+      state->forceValueDeep(*v);
+      std::cout << *v << "\n";
     }
+  }
 };
 
 static RegisterCommand r1(make_ref<CmdEval>());