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, 7 insertions, 7 deletions

diff --git a/third_party/nix/src/nix-build/nix-build.cc b/third_party/nix/src/nix-build/nix-build.cc
index a98603f351..6906a80583 100644
--- a/third_party/nix/src/nix-build/nix-build.cc
+++ b/third_party/nix/src/nix-build/nix-build.cc
@@ -27,10 +27,10 @@ using namespace std::string_literals;
 /* Recreate the effect of the perl shellwords function, breaking up a
  * string into arguments like a shell word, including escapes
  */
-std::vector<string> shellwords(const string& s) {
+std::vector<std::string> shellwords(const std::string& s) {
   std::regex whitespace("^(\\s+).*");
   auto begin = s.cbegin();
-  std::vector<string> res;
+  std::vector<std::string> res;
   std::string cur;
   enum state { sBegin, sQuote };
   state st = sBegin;
@@ -90,14 +90,14 @@ static void _main(int argc, char** argv) {
 
   auto inShebang = false;
   std::string script;
-  std::vector<string> savedArgs;
+  std::vector<std::string> savedArgs;
 
   AutoDelete tmpDir(createTempDir("", myName));
 
   std::string outLink = "./result";
 
   // List of environment variables kept for --pure
-  std::set<string> keepVars{
+  std::set<std::string> keepVars{
       "HOME",         "USER", "LOGNAME", "DISPLAY",         "PATH", "TERM",
       "IN_NIX_SHELL", "TZ",   "PAGER",   "NIX_BUILD_SHELL", "SHLVL"};
 
@@ -405,7 +405,7 @@ static void _main(int argc, char** argv) {
     // Build or fetch all dependencies of the derivation.
     for (const auto& input : drv.inputDrvs) {
       if (std::all_of(envExclude.cbegin(), envExclude.cend(),
-                      [&](const string& exclude) {
+                      [&](const std::string& exclude) {
                         return !std::regex_search(input.first,
                                                   std::regex(exclude));
                       })) {
@@ -452,7 +452,7 @@ static void _main(int argc, char** argv) {
     for (auto& var : drv.env) {
       if (passAsFile.count(var.first) != 0u) {
         keepTmp = true;
-        string fn = ".attr-" + std::to_string(fileNr++);
+        std::string fn = ".attr-" + std::to_string(fileNr++);
         Path p = (Path)tmpDir + "/" + fn;
         writeFile(p, var.second);
         env[var.first + "Path"] = p;
@@ -489,7 +489,7 @@ static void _main(int argc, char** argv) {
             (Path)tmpDir, (pure ? "" : "p=$PATH; "),
             (pure ? "" : "PATH=$PATH:$p; unset p; "), dirOf(shell), shell,
             (getenv("TZ") != nullptr
-                 ? (string("export TZ='") + getenv("TZ") + "'; ")
+                 ? (std::string("export TZ='") + getenv("TZ") + "'; ")
                  : ""),
             envCommand));