From 75cd64de58ada309e7fed647d10a68628f467d1b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20Ka=CC=88fer?= <mail@kkaefer.com>
Date: Mon, 24 Mar 2014 14:47:21 +0100
Subject: [PATCH] add toString method for Value variant

---
 include/llmr/style/value.hpp | 2 ++
 src/style/value.cpp          | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/llmr/style/value.hpp b/include/llmr/style/value.hpp
index a24e0e8e8..0ff6e7b20 100644
--- a/include/llmr/style/value.hpp
+++ b/include/llmr/style/value.hpp
@@ -8,6 +8,8 @@ namespace llmr {
 
 typedef util::variant<bool, int64_t, uint64_t, double, std::string> Value;
 
+std::string toString(const Value& value);
+
 Value parseValue(pbf data);
 
 }
diff --git a/src/style/value.cpp b/src/style/value.cpp
index 4ea1a6cd8..f845990c7 100644
--- a/src/style/value.cpp
+++ b/src/style/value.cpp
@@ -26,3 +26,12 @@ llmr::Value llmr::parseValue(pbf data) {
     }
     return false;
 }
+
+std::string llmr::toString(const llmr::Value& value) {
+    if (value.is<std::string>()) return value.get<std::string>();
+    else if (value.is<bool>()) return value.get<bool>() ? "true" : "false";
+    else if (value.is<int64_t>()) return std::to_string(value.get<int64_t>());
+    else if (value.is<uint64_t>()) return std::to_string(value.get<uint64_t>());
+    else if (value.is<double>()) return std::to_string(value.get<double>());
+    else return "null";
+}