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, 5 insertions, 5 deletions

diff --git a/third_party/nix/src/libutil/xml-writer.hh b/third_party/nix/src/libutil/xml-writer.hh
index 3a2d9a66d8e1..76f3c7e3a2f4 100644
--- a/third_party/nix/src/libutil/xml-writer.hh
+++ b/third_party/nix/src/libutil/xml-writer.hh
@@ -11,7 +11,7 @@ using std::list;
 using std::map;
 using std::string;
 
-typedef map<string, string> XMLAttrs;
+typedef map<std::string, std::string> XMLAttrs;
 
 class XMLWriter {
  private:
@@ -20,7 +20,7 @@ class XMLWriter {
   bool indent;
   bool closed;
 
-  list<string> pendingElems;
+  std::list<std::string> pendingElems;
 
  public:
   XMLWriter(bool indent, std::ostream& output);
@@ -28,10 +28,10 @@ class XMLWriter {
 
   void close();
 
-  void openElement(const string& name, const XMLAttrs& attrs = XMLAttrs());
+  void openElement(const std::string& name, const XMLAttrs& attrs = XMLAttrs());
   void closeElement();
 
-  void writeEmptyElement(const string& name,
+  void writeEmptyElement(const std::string& name,
                          const XMLAttrs& attrs = XMLAttrs());
 
  private:
@@ -45,7 +45,7 @@ class XMLOpenElement {
   XMLWriter& writer;
 
  public:
-  XMLOpenElement(XMLWriter& writer, const string& name,
+  XMLOpenElement(XMLWriter& writer, const std::string& name,
                  const XMLAttrs& attrs = XMLAttrs())
       : writer(writer) {
     writer.openElement(name, attrs);