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-rw-r--r--third_party/nix/src/libutil/istringstream_nocopy.hh116
1 files changed, 53 insertions, 63 deletions
diff --git a/third_party/nix/src/libutil/istringstream_nocopy.hh b/third_party/nix/src/libutil/istringstream_nocopy.hh
index f7beac578e..997965630b 100644
--- a/third_party/nix/src/libutil/istringstream_nocopy.hh
+++ b/third_party/nix/src/libutil/istringstream_nocopy.hh
@@ -5,88 +5,78 @@
 
 #pragma once
 
-#include <string>
 #include <iostream>
+#include <string>
 
-template <class CharT, class Traits = std::char_traits<CharT>, class Allocator = std::allocator<CharT>>
-class basic_istringbuf_nocopy : public std::basic_streambuf<CharT, Traits>
-{
-public:
-    typedef std::basic_string<CharT, Traits, Allocator> string_type;
+template <class CharT, class Traits = std::char_traits<CharT>,
+          class Allocator = std::allocator<CharT>>
+class basic_istringbuf_nocopy : public std::basic_streambuf<CharT, Traits> {
+ public:
+  typedef std::basic_string<CharT, Traits, Allocator> string_type;
 
-    typedef typename std::basic_streambuf<CharT, Traits>::off_type off_type;
+  typedef typename std::basic_streambuf<CharT, Traits>::off_type off_type;
 
-    typedef typename std::basic_streambuf<CharT, Traits>::pos_type pos_type;
+  typedef typename std::basic_streambuf<CharT, Traits>::pos_type pos_type;
 
-    typedef typename std::basic_streambuf<CharT, Traits>::int_type int_type;
+  typedef typename std::basic_streambuf<CharT, Traits>::int_type int_type;
 
-    typedef typename std::basic_streambuf<CharT, Traits>::traits_type traits_type;
+  typedef typename std::basic_streambuf<CharT, Traits>::traits_type traits_type;
 
-private:
-    const string_type & s;
+ private:
+  const string_type& s;
 
-    off_type off;
+  off_type off;
 
-public:
-    basic_istringbuf_nocopy(const string_type & s) : s{s}, off{0}
-    {
-    }
-
-private:
-    pos_type seekoff(off_type off, std::ios_base::seekdir dir, std::ios_base::openmode which)
-    {
-        if (which & std::ios_base::in) {
-            this->off = dir == std::ios_base::beg
-                ? off
-                : (dir == std::ios_base::end
-                    ? s.size() + off
-                    : this->off + off);
-        }
-        return pos_type(this->off);
-    }
+ public:
+  basic_istringbuf_nocopy(const string_type& s) : s{s}, off{0} {}
 
-    pos_type seekpos(pos_type pos, std::ios_base::openmode which)
-    {
-        return seekoff(pos, std::ios_base::beg, which);
+ private:
+  pos_type seekoff(off_type off, std::ios_base::seekdir dir,
+                   std::ios_base::openmode which) {
+    if (which & std::ios_base::in) {
+      this->off =
+          dir == std::ios_base::beg
+              ? off
+              : (dir == std::ios_base::end ? s.size() + off : this->off + off);
     }
+    return pos_type(this->off);
+  }
 
-    std::streamsize showmanyc()
-    {
-        return s.size() - off;
-    }
+  pos_type seekpos(pos_type pos, std::ios_base::openmode which) {
+    return seekoff(pos, std::ios_base::beg, which);
+  }
 
-    int_type underflow()
-    {
-        if (typename string_type::size_type(off) == s.size())
-            return traits_type::eof();
-        return traits_type::to_int_type(s[off]);
-    }
+  std::streamsize showmanyc() { return s.size() - off; }
 
-    int_type uflow()
-    {
-        if (typename string_type::size_type(off) == s.size())
-            return traits_type::eof();
-        return traits_type::to_int_type(s[off++]);
-    }
+  int_type underflow() {
+    if (typename string_type::size_type(off) == s.size())
+      return traits_type::eof();
+    return traits_type::to_int_type(s[off]);
+  }
 
-    int_type pbackfail(int_type ch)
-    {
-        if (off == 0 || (ch != traits_type::eof() && ch != s[off - 1]))
-            return traits_type::eof();
+  int_type uflow() {
+    if (typename string_type::size_type(off) == s.size())
+      return traits_type::eof();
+    return traits_type::to_int_type(s[off++]);
+  }
 
-        return traits_type::to_int_type(s[--off]);
-    }
+  int_type pbackfail(int_type ch) {
+    if (off == 0 || (ch != traits_type::eof() && ch != s[off - 1]))
+      return traits_type::eof();
 
+    return traits_type::to_int_type(s[--off]);
+  }
 };
 
-template <class CharT, class Traits = std::char_traits<CharT>, class Allocator = std::allocator<CharT>>
-class basic_istringstream_nocopy : public std::basic_iostream<CharT, Traits>
-{
-    typedef basic_istringbuf_nocopy<CharT, Traits, Allocator> buf_type;
-    buf_type buf;
-public:
-    basic_istringstream_nocopy(const typename buf_type::string_type & s) :
-        std::basic_iostream<CharT, Traits>(&buf), buf(s) {};
+template <class CharT, class Traits = std::char_traits<CharT>,
+          class Allocator = std::allocator<CharT>>
+class basic_istringstream_nocopy : public std::basic_iostream<CharT, Traits> {
+  typedef basic_istringbuf_nocopy<CharT, Traits, Allocator> buf_type;
+  buf_type buf;
+
+ public:
+  basic_istringstream_nocopy(const typename buf_type::string_type& s)
+      : std::basic_iostream<CharT, Traits>(&buf), buf(s){};
 };
 
 typedef basic_istringstream_nocopy<char> istringstream_nocopy;