Convert tree to using univalue. Eliminate all json_spirit uses.

src/univalue/univalue.h

@@ -11,6 +11,10 @@
 #include <map>
 #include <cassert>
 
+#include <sstream>        // .get_int64()
+#include <utility>        // std::pair
+#include <stdlib.h>       // atoi(), atof()   TODO: remove
+
 class UniValue {
 public:
     enum VType { VNULL, VOBJ, VARR, VSTR, VNUM, VBOOL, };
@@ -130,8 +134,88 @@ private:
     int findKey(const std::string& key) const;
     void writeArray(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const;
     void writeObject(unsigned int prettyIndent, unsigned int indentLevel, std::string& s) const;
+
+public:
+    //
+    // The following were added for compatibility with json_spirit.
+    // Most duplicate other methods, and should be removed.
+    //
+    std::vector<std::string> getKeys() const { return keys; }
+    std::vector<UniValue> getValues() const { return values; }
+    bool get_bool() const { return getBool(); }
+    std::string get_str() const { return getValStr(); }
+    int get_int() const { return atoi(getValStr().c_str()); }
+    double get_real() const { return atof(getValStr().c_str()); }
+    const UniValue& get_obj() const { return *this; }
+    const UniValue& get_array() const { return *this; }
+    enum VType type() const { return getType(); }
+    bool push_back(std::pair<std::string,UniValue> pear) {
+        return pushKV(pear.first, pear.second);
+    }
+    int64_t get_int64() const {
+        int64_t ret;
+        std::istringstream(getValStr()) >> ret;
+        return ret;
+    }
 };
 
+//
+// The following were added for compatibility with json_spirit.
+// Most duplicate other methods, and should be removed.
+//
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, const char *cVal)
+{
+    std::string key(cKey);
+    UniValue uVal(cVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, std::string strVal)
+{
+    std::string key(cKey);
+    UniValue uVal(strVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, uint64_t u64Val)
+{
+    std::string key(cKey);
+    UniValue uVal(u64Val);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, int64_t i64Val)
+{
+    std::string key(cKey);
+    UniValue uVal(i64Val);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, int iVal)
+{
+    std::string key(cKey);
+    UniValue uVal(iVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, double dVal)
+{
+    std::string key(cKey);
+    UniValue uVal(dVal);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(const char *cKey, const UniValue& uVal)
+{
+    std::string key(cKey);
+    return std::make_pair(key, uVal);
+}
+
+static inline std::pair<std::string,UniValue> Pair(std::string key, const UniValue& uVal)
+{
+    return std::make_pair(key, uVal);
+}
+
 enum jtokentype {
     JTOK_ERR        = -1,
     JTOK_NONE       = 0,                           // eof