From 22231518b9c2c0b7f73c72a6ca834df659c63c7f Mon Sep 17 00:00:00 2001
From: Dennis Brentjes <d.brentjes@gmail.com>
Date: Wed, 22 Jun 2016 00:15:08 +0200
Subject: Reduces the amount of boilerplate neccesary to parse the binary
 format.

---
 mz/mz_header.cpp | 38 ++++++++------------------------------
 1 file changed, 8 insertions(+), 30 deletions(-)

(limited to 'mz/mz_header.cpp')

diff --git a/mz/mz_header.cpp b/mz/mz_header.cpp
index 02241cf..c33270f 100644
--- a/mz/mz_header.cpp
+++ b/mz/mz_header.cpp
@@ -1,18 +1,16 @@
 
 #include "mz_header.hpp"
 
-#include "index_list.hpp"
-
-#include "binparse.hpp"
+#include "parse.hpp"
+#include "output.hpp"
 
 #include <boost/fusion/adapted/struct.hpp>
-#include <boost/fusion/adapted/struct/detail/extension.hpp>
 
 #include <vector>
 #include <iomanip>
 
 BOOST_FUSION_ADAPT_STRUCT(
-	mz::MZHeader,
+	mz::Header,
 	(binparse::Magic16, magic)
 	(binparse::Value16, bytes_in_last_block)
 	(binparse::Value16, blocks_in_file)
@@ -35,35 +33,15 @@ NotAMZFileException::NotAMZFileException()
 : std::runtime_error("This stream does not contain a valid MZ executable")
 {}
 
-template <int... Indices>
-MZHeader parse_header_impl(std::istream& is, indices<Indices...>) {
-	
-	return {parse<typename std::decay<typename boost::fusion::result_of::at_c<MZHeader, Indices>::type>::type>(is, boost::fusion::extension::struct_member_name<MZHeader, Indices>::call())...};
-	
-}
-
-MZHeader parse_header(std::istream& is) {
-	
-	typedef build_indices<boost::fusion::result_of::size<MZHeader>::value>::type indices;
+Header parse_header(std::istream& is) {
+	using binparse::parse;
 	
-	return parse_header_impl(is, indices{});
+	return parse<Header>(is);
 }
 
-std::ostream& output_impl(std::ostream& os, MZHeader const&, indices<>) {
-	return os;
-}
-
-template <int I, int... Indices>
-std::ostream& output_impl(std::ostream& os, const MZHeader& header, indices<I, Indices...>) {
-	os << boost::fusion::extension::struct_member_name<MZHeader, I>::call() << ": " << boost::fusion::at_c<I>(header) << std::endl;
-	return output_impl(os, header, indices<Indices...>{});
-}
-
-std::ostream& operator<<(std::ostream& os, MZHeader const& header)
+std::ostream& operator<<(std::ostream& os, Header const& header)
 {
-	typedef build_indices<boost::fusion::result_of::size<MZHeader>::value>::type indices;
-	
-	return output_impl(os, header, indices{});
+	return binparse::operator<<(os, header);
 }
 
 }
-- 
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