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Diffstat (limited to 'src/univalue/lib/univalue.cpp')
| -rw-r--r-- | src/univalue/lib/univalue.cpp | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/src/univalue/lib/univalue.cpp b/src/univalue/lib/univalue.cpp new file mode 100644 index 0000000000..d8ad7c4b90 --- /dev/null +++ b/src/univalue/lib/univalue.cpp @@ -0,0 +1,244 @@ +// Copyright 2014 BitPay Inc. +// Copyright 2015 Bitcoin Core Developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <stdint.h> +#include <iomanip> +#include <sstream> +#include <stdlib.h> + +#include "univalue.h" + +using namespace std; + +const UniValue NullUniValue; + +void UniValue::clear() +{ + typ = VNULL; + val.clear(); + keys.clear(); + values.clear(); +} + +bool UniValue::setNull() +{ + clear(); + return true; +} + +bool UniValue::setBool(bool val_) +{ + clear(); + typ = VBOOL; + if (val_) + val = "1"; + return true; +} + +static bool validNumStr(const string& s) +{ + string tokenVal; + unsigned int consumed; + enum jtokentype tt = getJsonToken(tokenVal, consumed, s.data(), s.data() + s.size()); + return (tt == JTOK_NUMBER); +} + +bool UniValue::setNumStr(const string& val_) +{ + if (!validNumStr(val_)) + return false; + + clear(); + typ = VNUM; + val = val_; + return true; +} + +bool UniValue::setInt(uint64_t val_) +{ + ostringstream oss; + + oss << val_; + + return setNumStr(oss.str()); +} + +bool UniValue::setInt(int64_t val_) +{ + ostringstream oss; + + oss << val_; + + return setNumStr(oss.str()); +} + +bool UniValue::setFloat(double val_) +{ + ostringstream oss; + + oss << std::setprecision(16) << val_; + + bool ret = setNumStr(oss.str()); + typ = VNUM; + return ret; +} + +bool UniValue::setStr(const string& val_) +{ + clear(); + typ = VSTR; + val = val_; + return true; +} + +bool UniValue::setArray() +{ + clear(); + typ = VARR; + return true; +} + +bool UniValue::setObject() +{ + clear(); + typ = VOBJ; + return true; +} + +bool UniValue::push_back(const UniValue& val_) +{ + if (typ != VARR) + return false; + + values.push_back(val_); + return true; +} + +bool UniValue::push_backV(const std::vector<UniValue>& vec) +{ + if (typ != VARR) + return false; + + values.insert(values.end(), vec.begin(), vec.end()); + + return true; +} + +void UniValue::__pushKV(const std::string& key, const UniValue& val_) +{ + keys.push_back(key); + values.push_back(val_); +} + +bool UniValue::pushKV(const std::string& key, const UniValue& val_) +{ + if (typ != VOBJ) + return false; + + size_t idx; + if (findKey(key, idx)) + values[idx] = val_; + else + __pushKV(key, val_); + return true; +} + +bool UniValue::pushKVs(const UniValue& obj) +{ + if (typ != VOBJ || obj.typ != VOBJ) + return false; + + for (size_t i = 0; i < obj.keys.size(); i++) + __pushKV(obj.keys[i], obj.values.at(i)); + + return true; +} + +void UniValue::getObjMap(std::map<std::string,UniValue>& kv) const +{ + if (typ != VOBJ) + return; + + kv.clear(); + for (size_t i = 0; i < keys.size(); i++) + kv[keys[i]] = values[i]; +} + +bool UniValue::findKey(const std::string& key, size_t& retIdx) const +{ + for (size_t i = 0; i < keys.size(); i++) { + if (keys[i] == key) { + retIdx = i; + return true; + } + } + + return false; +} + +bool UniValue::checkObject(const std::map<std::string,UniValue::VType>& t) const +{ + if (typ != VOBJ) + return false; + + for (std::map<std::string,UniValue::VType>::const_iterator it = t.begin(); + it != t.end(); ++it) { + size_t idx = 0; + if (!findKey(it->first, idx)) + return false; + + if (values.at(idx).getType() != it->second) + return false; + } + + return true; +} + +const UniValue& UniValue::operator[](const std::string& key) const +{ + if (typ != VOBJ) + return NullUniValue; + + size_t index = 0; + if (!findKey(key, index)) + return NullUniValue; + + return values.at(index); +} + +const UniValue& UniValue::operator[](size_t index) const +{ + if (typ != VOBJ && typ != VARR) + return NullUniValue; + if (index >= values.size()) + return NullUniValue; + + return values.at(index); +} + +const char *uvTypeName(UniValue::VType t) +{ + switch (t) { + case UniValue::VNULL: return "null"; + case UniValue::VBOOL: return "bool"; + case UniValue::VOBJ: return "object"; + case UniValue::VARR: return "array"; + case UniValue::VSTR: return "string"; + case UniValue::VNUM: return "number"; + } + + // not reached + return NULL; +} + +const UniValue& find_value(const UniValue& obj, const std::string& name) +{ + for (unsigned int i = 0; i < obj.keys.size(); i++) + if (obj.keys[i] == name) + return obj.values.at(i); + + return NullUniValue; +} + |