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, 27 insertions, 25 deletions

diff --git a/third_party/nix/src/libstore/store-api.hh b/third_party/nix/src/libstore/store-api.hh
index 242a3e6562..cf2520c6ca 100644
--- a/third_party/nix/src/libstore/store-api.hh
+++ b/third_party/nix/src/libstore/store-api.hh
@@ -18,12 +18,14 @@
 
 namespace nix {
 
-MakeError(SubstError, Error)
-    MakeError(BuildError, Error) /* denotes a permanent build failure */
-    MakeError(InvalidPath, Error) MakeError(Unsupported, Error)
-        MakeError(SubstituteGone, Error) MakeError(SubstituterDisabled, Error)
-
-            struct BasicDerivation;
+MakeError(SubstError, Error);
+MakeError(BuildError, Error); /* denotes a permanent build failure */
+MakeError(InvalidPath, Error);
+MakeError(Unsupported, Error);
+MakeError(SubstituteGone, Error);
+MakeError(SubstituterDisabled, Error);
+
+struct BasicDerivation;
 struct Derivation;
 class FSAccessor;
 class NarInfoDiskCache;
@@ -175,7 +177,7 @@ struct ValidPathInfo {
   virtual ~ValidPathInfo() {}
 };
 
-typedef list<ValidPathInfo> ValidPathInfos;
+typedef std::list<ValidPathInfo> ValidPathInfos;
 
 enum BuildMode { bmNormal, bmRepair, bmCheck };
 
@@ -274,23 +276,23 @@ class Store : public std::enable_shared_from_this<Store>, public Config {
   Path followLinksToStorePath(const Path& path) const;
 
   /* Constructs a unique store path name. */
-  Path makeStorePath(const string& type, const Hash& hash,
-                     const string& name) const;
+  Path makeStorePath(const std::string& type, const Hash& hash,
+                     const std::string& name) const;
 
-  Path makeOutputPath(const string& id, const Hash& hash,
-                      const string& name) const;
+  Path makeOutputPath(const std::string& id, const Hash& hash,
+                      const std::string& name) const;
 
   Path makeFixedOutputPath(bool recursive, const Hash& hash,
-                           const string& name) const;
+                           const std::string& name) const;
 
-  Path makeTextPath(const string& name, const Hash& hash,
+  Path makeTextPath(const std::string& name, const Hash& hash,
                     const PathSet& references) const;
 
   /* This is the preparatory part of addToStore(); it computes the
      store path to which srcPath is to be copied.  Returns the store
      path and the cryptographic hash of the contents of srcPath. */
   std::pair<Path, Hash> computeStorePathForPath(
-      const string& name, const Path& srcPath, bool recursive = true,
+      const std::string& name, const Path& srcPath, bool recursive = true,
       HashType hashAlgo = htSHA256,
       PathFilter& filter = defaultPathFilter) const;
 
@@ -308,7 +310,7 @@ class Store : public std::enable_shared_from_this<Store>, public Config {
      simply yield a different store path, so other users wouldn't be
      affected), but it has some backwards compatibility issues (the
      hashing scheme changes), so I'm not doing that for now. */
-  Path computeStorePathForText(const string& name, const string& s,
+  Path computeStorePathForText(const std::string& name, const std::string& s,
                                const PathSet& references) const;
 
   /* Check whether a path is valid. */
@@ -368,7 +370,7 @@ class Store : public std::enable_shared_from_this<Store>, public Config {
 
   /* Query the full store path given the hash part of a valid store
      path, or "" if the path doesn't exist. */
-  virtual Path queryPathFromHashPart(const string& hashPart) = 0;
+  virtual Path queryPathFromHashPart(const std::string& hashPart) = 0;
 
   /* Query which of the given paths have substitutes. */
   virtual PathSet querySubstitutablePaths(const PathSet& paths) { return {}; };
@@ -400,14 +402,14 @@ class Store : public std::enable_shared_from_this<Store>, public Config {
      validity the resulting path.  The resulting path is returned.
      The function object `filter' can be used to exclude files (see
      libutil/archive.hh). */
-  virtual Path addToStore(const string& name, const Path& srcPath,
+  virtual Path addToStore(const std::string& name, const Path& srcPath,
                           bool recursive = true, HashType hashAlgo = htSHA256,
                           PathFilter& filter = defaultPathFilter,
                           RepairFlag repair = NoRepair) = 0;
 
   /* Like addToStore, but the contents written to the output path is
      a regular file containing the given string. */
-  virtual Path addTextToStore(const string& name, const string& s,
+  virtual Path addTextToStore(const std::string& name, const std::string& s,
                               const PathSet& references,
                               RepairFlag repair = NoRepair) = 0;
 
@@ -484,8 +486,8 @@ class Store : public std::enable_shared_from_this<Store>, public Config {
   /* Return a string representing information about the path that
      can be loaded into the database using `nix-store --load-db' or
      `nix-store --register-validity'. */
-  string makeValidityRegistration(const PathSet& paths, bool showDerivers,
-                                  bool showHash);
+  std::string makeValidityRegistration(const PathSet& paths, bool showDerivers,
+                                       bool showHash);
 
   /* Write a JSON representation of store path metadata, such as the
      hash and the references. If ‘includeImpureInfo’ is true,
@@ -637,7 +639,7 @@ class LocalFSStore : public virtual Store {
       rootDir != "" ? rootDir + "/nix/var/log/nix" : settings.nixLogDir, "log",
       "directory where Nix will store state"};
 
-  const static string drvsLogDir;
+  const static std::string drvsLogDir;
 
   LocalFSStore(const Params& params);
 
@@ -660,15 +662,15 @@ class LocalFSStore : public virtual Store {
 };
 
 /* Extract the name part of the given store path. */
-string storePathToName(const Path& path);
+std::string storePathToName(const Path& path);
 
 /* Extract the hash part of the given store path. */
-string storePathToHash(const Path& path);
+std::string storePathToHash(const Path& path);
 
 /* Check whether ‘name’ is a valid store path name part, i.e. contains
    only the characters [a-zA-Z0-9\+\-\.\_\?\=] and doesn't start with
    a dot. */
-void checkStoreName(const string& name);
+void checkStoreName(const std::string& name);
 
 /* Copy a path from one store to another. */
 void copyStorePath(ref<Store> srcStore, const ref<Store>& dstStore,
@@ -756,7 +758,7 @@ struct RegisterStoreImplementation {
 
 /* Display a set of paths in human-readable form (i.e., between quotes
    and separated by commas). */
-string showPaths(const PathSet& paths);
+std::string showPaths(const PathSet& paths);
 
 ValidPathInfo decodeValidPathInfo(std::istream& str, bool hashGiven = false);