refactor(3p/nix/libexpr): Use std::string as qualified type r/797

Replaces most uses of `string` with `std::string`.

This came up because I removed the "types.hh" import from
"symbol-table.hh", which percolated through a bunch of files where
`string` was suddenly no longer defined ... *sigh*

1 files changed, 3 insertions, 3 deletions

diff --git a/third_party/nix/src/libexpr/attr-path.cc b/third_party/nix/src/libexpr/attr-path.cc
index b9b9106be8..3a467504aa 100644
--- a/third_party/nix/src/libexpr/attr-path.cc
+++ b/third_party/nix/src/libexpr/attr-path.cc
@@ -5,9 +5,9 @@
 
 namespace nix {
 
-static Strings parseAttrPath(const string& s) {
+static Strings parseAttrPath(const std::string& s) {
   Strings res;
-  string cur;
+  std::string cur;
   string::const_iterator i = s.begin();
   while (i != s.end()) {
     if (*i == '.') {
@@ -36,7 +36,7 @@ static Strings parseAttrPath(const string& s) {
   return res;
 }
 
-Value* findAlongAttrPath(EvalState& state, const string& attrPath,
+Value* findAlongAttrPath(EvalState& state, const std::string& attrPath,
                          Bindings& autoArgs, Value& vIn) {
   Strings tokens = parseAttrPath(attrPath);