From 0f2cf531f705d370321843e5ba9135b2ebdb5d19 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <tazjin@google.com>
Date: Sun, 17 May 2020 16:31:57 +0100
Subject: style(3p/nix): Reformat project in Google C++ style

Reformatted with:

    fd . -e hh -e cc | xargs clang-format -i
---
 third_party/nix/src/libutil/args.hh | 343 +++++++++++++++++++-----------------
 1 file changed, 179 insertions(+), 164 deletions(-)

(limited to 'third_party/nix/src/libutil/args.hh')

diff --git a/third_party/nix/src/libutil/args.hh b/third_party/nix/src/libutil/args.hh
index ad5fcca39418..dc41a6849b40 100644
--- a/third_party/nix/src/libutil/args.hh
+++ b/third_party/nix/src/libutil/args.hh
@@ -3,7 +3,6 @@
 #include <iostream>
 #include <map>
 #include <memory>
-
 #include "util.hh"
 
 namespace nix {
@@ -12,190 +11,206 @@ MakeError(UsageError, Error);
 
 enum HashType : char;
 
-class Args
-{
-public:
+class Args {
+ public:
+  /* Parse the command line, throwing a UsageError if something goes
+     wrong. */
+  void parseCmdline(const Strings& cmdline);
 
-    /* Parse the command line, throwing a UsageError if something goes
-       wrong. */
-    void parseCmdline(const Strings & cmdline);
+  virtual void printHelp(const string& programName, std::ostream& out);
 
-    virtual void printHelp(const string & programName, std::ostream & out);
+  virtual std::string description() { return ""; }
 
-    virtual std::string description() { return ""; }
+ protected:
+  static const size_t ArityAny = std::numeric_limits<size_t>::max();
 
-protected:
+  /* Flags. */
+  struct Flag {
+    typedef std::shared_ptr<Flag> ptr;
+    std::string longName;
+    char shortName = 0;
+    std::string description;
+    Strings labels;
+    size_t arity = 0;
+    std::function<void(std::vector<std::string>)> handler;
+    std::string category;
+  };
 
-    static const size_t ArityAny = std::numeric_limits<size_t>::max();
+  std::map<std::string, Flag::ptr> longFlags;
+  std::map<char, Flag::ptr> shortFlags;
 
-    /* Flags. */
-    struct Flag
-    {
-        typedef std::shared_ptr<Flag> ptr;
-        std::string longName;
-        char shortName = 0;
-        std::string description;
-        Strings labels;
-        size_t arity = 0;
-        std::function<void(std::vector<std::string>)> handler;
-        std::string category;
-    };
+  virtual bool processFlag(Strings::iterator& pos, Strings::iterator end);
+
+  virtual void printFlags(std::ostream& out);
+
+  /* Positional arguments. */
+  struct ExpectedArg {
+    std::string label;
+    size_t arity;  // 0 = any
+    bool optional;
+    std::function<void(std::vector<std::string>)> handler;
+  };
 
-    std::map<std::string, Flag::ptr> longFlags;
-    std::map<char, Flag::ptr> shortFlags;
+  std::list<ExpectedArg> expectedArgs;
 
-    virtual bool processFlag(Strings::iterator & pos, Strings::iterator end);
+  virtual bool processArgs(const Strings& args, bool finish);
 
-    virtual void printFlags(std::ostream & out);
+  std::set<std::string> hiddenCategories;
+
+ public:
+  class FlagMaker {
+    Args& args;
+    Flag::ptr flag;
+    friend class Args;
+    FlagMaker(Args& args) : args(args), flag(std::make_shared<Flag>()){};
+
+   public:
+    ~FlagMaker();
+    FlagMaker& longName(const std::string& s) {
+      flag->longName = s;
+      return *this;
+    };
+    FlagMaker& shortName(char s) {
+      flag->shortName = s;
+      return *this;
+    };
+    FlagMaker& description(const std::string& s) {
+      flag->description = s;
+      return *this;
+    };
+    FlagMaker& label(const std::string& l) {
+      flag->arity = 1;
+      flag->labels = {l};
+      return *this;
+    };
+    FlagMaker& labels(const Strings& ls) {
+      flag->arity = ls.size();
+      flag->labels = ls;
+      return *this;
+    };
+    FlagMaker& arity(size_t arity) {
+      flag->arity = arity;
+      return *this;
+    };
+    FlagMaker& handler(std::function<void(std::vector<std::string>)> handler) {
+      flag->handler = handler;
+      return *this;
+    };
+    FlagMaker& handler(std::function<void()> handler) {
+      flag->handler = [handler](std::vector<std::string>) { handler(); };
+      return *this;
+    };
+    FlagMaker& handler(std::function<void(std::string)> handler) {
+      flag->arity = 1;
+      flag->handler = [handler](std::vector<std::string> ss) {
+        handler(std::move(ss[0]));
+      };
+      return *this;
+    };
+    FlagMaker& category(const std::string& s) {
+      flag->category = s;
+      return *this;
+    };
 
-    /* Positional arguments. */
-    struct ExpectedArg
-    {
-        std::string label;
-        size_t arity; // 0 = any
-        bool optional;
-        std::function<void(std::vector<std::string>)> handler;
+    template <class T>
+    FlagMaker& dest(T* dest) {
+      flag->arity = 1;
+      flag->handler = [=](std::vector<std::string> ss) { *dest = ss[0]; };
+      return *this;
     };
 
-    std::list<ExpectedArg> expectedArgs;
-
-    virtual bool processArgs(const Strings & args, bool finish);
-
-    std::set<std::string> hiddenCategories;
-
-public:
-
-    class FlagMaker
-    {
-        Args & args;
-        Flag::ptr flag;
-        friend class Args;
-        FlagMaker(Args & args) : args(args), flag(std::make_shared<Flag>()) { };
-    public:
-        ~FlagMaker();
-        FlagMaker & longName(const std::string & s) { flag->longName = s; return *this; };
-        FlagMaker & shortName(char s) { flag->shortName = s; return *this; };
-        FlagMaker & description(const std::string & s) { flag->description = s; return *this; };
-        FlagMaker & label(const std::string & l) { flag->arity = 1; flag->labels = {l}; return *this; };
-        FlagMaker & labels(const Strings & ls) { flag->arity = ls.size(); flag->labels = ls; return *this; };
-        FlagMaker & arity(size_t arity) { flag->arity = arity; return *this; };
-        FlagMaker & handler(std::function<void(std::vector<std::string>)> handler) { flag->handler = handler; return *this; };
-        FlagMaker & handler(std::function<void()> handler) { flag->handler = [handler](std::vector<std::string>) { handler(); }; return *this; };
-        FlagMaker & handler(std::function<void(std::string)> handler) {
-            flag->arity = 1;
-            flag->handler = [handler](std::vector<std::string> ss) { handler(std::move(ss[0])); };
-            return *this;
-        };
-        FlagMaker & category(const std::string & s) { flag->category = s; return *this; };
-
-        template<class T>
-        FlagMaker & dest(T * dest)
-        {
-            flag->arity = 1;
-            flag->handler = [=](std::vector<std::string> ss) { *dest = ss[0]; };
-            return *this;
-        };
-
-        template<class T>
-        FlagMaker & set(T * dest, const T & val)
-        {
-            flag->arity = 0;
-            flag->handler = [=](std::vector<std::string> ss) { *dest = val; };
-            return *this;
-        };
-
-        FlagMaker & mkHashTypeFlag(HashType * ht);
+    template <class T>
+    FlagMaker& set(T* dest, const T& val) {
+      flag->arity = 0;
+      flag->handler = [=](std::vector<std::string> ss) { *dest = val; };
+      return *this;
     };
 
-    FlagMaker mkFlag();
-
-    /* Helper functions for constructing flags / positional
-       arguments. */
-
-    void mkFlag1(char shortName, const std::string & longName,
-        const std::string & label, const std::string & description,
-        std::function<void(std::string)> fun)
-    {
-        mkFlag()
-            .shortName(shortName)
-            .longName(longName)
-            .labels({label})
-            .description(description)
-            .arity(1)
-            .handler([=](std::vector<std::string> ss) { fun(ss[0]); });
-    }
-
-    void mkFlag(char shortName, const std::string & name,
-        const std::string & description, bool * dest)
-    {
-        mkFlag(shortName, name, description, dest, true);
-    }
-
-    template<class T>
-    void mkFlag(char shortName, const std::string & longName, const std::string & description,
-        T * dest, const T & value)
-    {
-        mkFlag()
-            .shortName(shortName)
-            .longName(longName)
-            .description(description)
-            .handler([=](std::vector<std::string> ss) { *dest = value; });
-    }
-
-    template<class I>
-    void mkIntFlag(char shortName, const std::string & longName,
-        const std::string & description, I * dest)
-    {
-        mkFlag<I>(shortName, longName, description, [=](I n) {
-            *dest = n;
+    FlagMaker& mkHashTypeFlag(HashType* ht);
+  };
+
+  FlagMaker mkFlag();
+
+  /* Helper functions for constructing flags / positional
+     arguments. */
+
+  void mkFlag1(char shortName, const std::string& longName,
+               const std::string& label, const std::string& description,
+               std::function<void(std::string)> fun) {
+    mkFlag()
+        .shortName(shortName)
+        .longName(longName)
+        .labels({label})
+        .description(description)
+        .arity(1)
+        .handler([=](std::vector<std::string> ss) { fun(ss[0]); });
+  }
+
+  void mkFlag(char shortName, const std::string& name,
+              const std::string& description, bool* dest) {
+    mkFlag(shortName, name, description, dest, true);
+  }
+
+  template <class T>
+  void mkFlag(char shortName, const std::string& longName,
+              const std::string& description, T* dest, const T& value) {
+    mkFlag()
+        .shortName(shortName)
+        .longName(longName)
+        .description(description)
+        .handler([=](std::vector<std::string> ss) { *dest = value; });
+  }
+
+  template <class I>
+  void mkIntFlag(char shortName, const std::string& longName,
+                 const std::string& description, I* dest) {
+    mkFlag<I>(shortName, longName, description, [=](I n) { *dest = n; });
+  }
+
+  template <class I>
+  void mkFlag(char shortName, const std::string& longName,
+              const std::string& description, std::function<void(I)> fun) {
+    mkFlag()
+        .shortName(shortName)
+        .longName(longName)
+        .labels({"N"})
+        .description(description)
+        .arity(1)
+        .handler([=](std::vector<std::string> ss) {
+          I n;
+          if (!string2Int(ss[0], n))
+            throw UsageError("flag '--%s' requires a integer argument",
+                             longName);
+          fun(n);
         });
-    }
-
-    template<class I>
-    void mkFlag(char shortName, const std::string & longName,
-        const std::string & description, std::function<void(I)> fun)
-    {
-        mkFlag()
-            .shortName(shortName)
-            .longName(longName)
-            .labels({"N"})
-            .description(description)
-            .arity(1)
-            .handler([=](std::vector<std::string> ss) {
-                I n;
-                if (!string2Int(ss[0], n))
-                    throw UsageError("flag '--%s' requires a integer argument", longName);
-                fun(n);
-            });
-    }
-
-    /* Expect a string argument. */
-    void expectArg(const std::string & label, string * dest, bool optional = false)
-    {
-        expectedArgs.push_back(ExpectedArg{label, 1, optional, [=](std::vector<std::string> ss) {
-            *dest = ss[0];
-        }});
-    }
-
-    /* Expect 0 or more arguments. */
-    void expectArgs(const std::string & label, std::vector<std::string> * dest)
-    {
-        expectedArgs.push_back(ExpectedArg{label, 0, false, [=](std::vector<std::string> ss) {
-            *dest = std::move(ss);
-        }});
-    }
-
-    friend class MultiCommand;
+  }
+
+  /* Expect a string argument. */
+  void expectArg(const std::string& label, string* dest,
+                 bool optional = false) {
+    expectedArgs.push_back(
+        ExpectedArg{label, 1, optional,
+                    [=](std::vector<std::string> ss) { *dest = ss[0]; }});
+  }
+
+  /* Expect 0 or more arguments. */
+  void expectArgs(const std::string& label, std::vector<std::string>* dest) {
+    expectedArgs.push_back(ExpectedArg{
+        label, 0, false,
+        [=](std::vector<std::string> ss) { *dest = std::move(ss); }});
+  }
+
+  friend class MultiCommand;
 };
 
-Strings argvToStrings(int argc, char * * argv);
+Strings argvToStrings(int argc, char** argv);
 
 /* Helper function for rendering argument labels. */
-std::string renderLabels(const Strings & labels);
+std::string renderLabels(const Strings& labels);
 
 /* Helper function for printing 2-column tables. */
 typedef std::vector<std::pair<std::string, std::string>> Table2;
 
-void printTable(std::ostream & out, const Table2 & table);
+void printTable(std::ostream& out, const Table2& table);
 
-}
+}  // namespace nix
-- 
cgit 1.4.1