style(3p/nix): Remove 'using std::*' from types.hh r/840

It is considered bad form to use things from includes in headers, as
these directives propagate to everywhere else and can make it
confusing.

types.hh (which is includes almost literally everywhere) had some of
these directives, which this commit removes.

1 files changed, 13 insertions, 13 deletions

diff --git a/third_party/nix/src/nix-store/dotgraph.cc b/third_party/nix/src/nix-store/dotgraph.cc
index 0186a7b22ebd..ef335bb5318d 100644
--- a/third_party/nix/src/nix-store/dotgraph.cc
+++ b/third_party/nix/src/nix-store/dotgraph.cc
@@ -9,23 +9,23 @@ using std::cout;
 
 namespace nix {
 
-static string dotQuote(const string& s) { return "\"" + s + "\""; }
+static std::string dotQuote(const std::string& s) { return "\"" + s + "\""; }
 
-static string nextColour() {
+static std::string nextColour() {
   static int n = 0;
-  static string colours[] = {"black", "red",     "green",
-                             "blue",  "magenta", "burlywood"};
-  return colours[n++ % (sizeof(colours) / sizeof(string))];
+  static std::string colours[] = {"black", "red",     "green",
+                                  "blue",  "magenta", "burlywood"};
+  return colours[n++ % (sizeof(colours) / sizeof(std::string))];
 }
 
-static string makeEdge(const string& src, const string& dst) {
+static std::string makeEdge(const std::string& src, const std::string& dst) {
   format f = format("%1% -> %2% [color = %3%];\n") % dotQuote(src) %
              dotQuote(dst) % dotQuote(nextColour());
   return f.str();
 }
 
-static string makeNode(const string& id, const string& label,
-                       const string& colour) {
+static std::string makeNode(const std::string& id, const std::string& label,
+                            const std::string& colour) {
   format f = format(
                  "%1% [label = %2%, shape = box, "
                  "style = filled, fillcolor = %3%];\n") %
@@ -33,15 +33,15 @@ static string makeNode(const string& id, const string& label,
   return f.str();
 }
 
-static string symbolicName(const string& path) {
-  string p = baseNameOf(path);
-  return string(p, p.find('-') + 1);
+static std::string symbolicName(const std::string& path) {
+  std::string p = baseNameOf(path);
+  return std::string(p, p.find('-') + 1);
 }
 
 #if 0
-string pathLabel(const Path & nePath, const string & elemPath)
+std::string pathLabel(const Path & nePath, const std::string & elemPath)
 {
-    return (string) nePath + "-" + elemPath;
+    return (std::string) nePath + "-" + elemPath;
 }