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json-util.cpp
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// Copyright Cartesi and individual authors (see AUTHORS)
// SPDX-License-Identifier: LGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option) any
// later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
// PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License along
// with this program (see COPYING). If not, see <https://www.gnu.org/licenses/>.
//
#include "json-util.h"
#include <climits>
#include <string>
#include <unordered_map>
#include <utility>
#include "base64.h"
#include "machine-merkle-tree.h"
namespace cartesi {
std::string to_string(const std::string &s) {
return s;
}
std::string to_string(const char *s) {
return s;
}
std::string encode_base64(const unsigned char *data, uint64_t length) {
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
const std::string input(reinterpret_cast<const char *>(data), length);
return encode_base64(input);
}
std::string encode_base64(const machine_merkle_tree::hash_type &hash) {
return encode_base64(hash.data(), hash.size());
}
std::string encode_base64(const access_data &data) {
return encode_base64(data.data(), data.size());
}
/// \brief Converts between a register name and a register index
/// \param name Register name
/// \returns The register index
static auto reg_from_name(const std::string &name) {
using reg = machine::reg;
const static std::unordered_map<std::string, reg> g_reg_name = {
{"x0", reg::x0},
{"x1", reg::x1},
{"x2", reg::x2},
{"x3", reg::x3},
{"x4", reg::x4},
{"x5", reg::x5},
{"x6", reg::x6},
{"x7", reg::x7},
{"x8", reg::x8},
{"x9", reg::x9},
{"x10", reg::x10},
{"x11", reg::x11},
{"x12", reg::x12},
{"x13", reg::x13},
{"x14", reg::x14},
{"x15", reg::x15},
{"x16", reg::x16},
{"x17", reg::x17},
{"x18", reg::x18},
{"x19", reg::x19},
{"x20", reg::x20},
{"x21", reg::x21},
{"x22", reg::x22},
{"x23", reg::x23},
{"x24", reg::x24},
{"x25", reg::x25},
{"x26", reg::x26},
{"x27", reg::x27},
{"x28", reg::x28},
{"x29", reg::x29},
{"x30", reg::x30},
{"x31", reg::x31},
{"f0", reg::f0},
{"f1", reg::f1},
{"f2", reg::f2},
{"f3", reg::f3},
{"f4", reg::f4},
{"f5", reg::f5},
{"f6", reg::f6},
{"f7", reg::f7},
{"f8", reg::f8},
{"f9", reg::f9},
{"f10", reg::f10},
{"f11", reg::f11},
{"f12", reg::f12},
{"f13", reg::f13},
{"f14", reg::f14},
{"f15", reg::f15},
{"f16", reg::f16},
{"f17", reg::f17},
{"f18", reg::f18},
{"f19", reg::f19},
{"f20", reg::f20},
{"f21", reg::f21},
{"f22", reg::f22},
{"f23", reg::f23},
{"f24", reg::f24},
{"f25", reg::f25},
{"f26", reg::f26},
{"f27", reg::f27},
{"f28", reg::f28},
{"f29", reg::f29},
{"f30", reg::f30},
{"f31", reg::f31},
{"pc", reg::pc},
{"fcsr", reg::fcsr},
{"mvendorid", reg::mvendorid},
{"marchid", reg::marchid},
{"mimpid", reg::mimpid},
{"mcycle", reg::mcycle},
{"icycleinstret", reg::icycleinstret},
{"mstatus", reg::mstatus},
{"mtvec", reg::mtvec},
{"mscratch", reg::mscratch},
{"mepc", reg::mepc},
{"mcause", reg::mcause},
{"mtval", reg::mtval},
{"misa", reg::misa},
{"mie", reg::mie},
{"mip", reg::mip},
{"medeleg", reg::medeleg},
{"mideleg", reg::mideleg},
{"mcounteren", reg::mcounteren},
{"menvcfg", reg::menvcfg},
{"stvec", reg::stvec},
{"sscratch", reg::sscratch},
{"sepc", reg::sepc},
{"scause", reg::scause},
{"stval", reg::stval},
{"satp", reg::satp},
{"scounteren", reg::scounteren},
{"senvcfg", reg::senvcfg},
{"ilrsc", reg::ilrsc},
{"iflags", reg::iflags},
{"iflags_prv", reg::iflags_prv},
{"iflags_x", reg::iflags_x},
{"iflags_y", reg::iflags_y},
{"iflags_h", reg::iflags_h},
{"iunrep", reg::iunrep},
{"clint_mtimecmp", reg::clint_mtimecmp},
{"plic_girqpend", reg::plic_girqpend},
{"plic_girqsrvd", reg::plic_girqsrvd},
{"htif_tohost", reg::htif_tohost},
{"htif_tohost_dev", reg::htif_tohost_dev},
{"htif_tohost_cmd", reg::htif_tohost_cmd},
{"htif_tohost_reason", reg::htif_tohost_reason},
{"htif_tohost_data", reg::htif_tohost_data},
{"htif_fromhost", reg::htif_fromhost},
{"htif_fromhost_dev", reg::htif_fromhost_dev},
{"htif_fromhost_cmd", reg::htif_fromhost_cmd},
{"htif_fromhost_reason", reg::htif_fromhost_reason},
{"htif_fromhost_data", reg::htif_fromhost_data},
{"htif_ihalt", reg::htif_ihalt},
{"htif_iconsole", reg::htif_iconsole},
{"htif_iyield", reg::htif_iyield},
{"uarch_x0", reg::uarch_x0},
{"uarch_x1", reg::uarch_x1},
{"uarch_x2", reg::uarch_x2},
{"uarch_x3", reg::uarch_x3},
{"uarch_x4", reg::uarch_x4},
{"uarch_x5", reg::uarch_x5},
{"uarch_x6", reg::uarch_x6},
{"uarch_x7", reg::uarch_x7},
{"uarch_x8", reg::uarch_x8},
{"uarch_x9", reg::uarch_x9},
{"uarch_x10", reg::uarch_x10},
{"uarch_x11", reg::uarch_x11},
{"uarch_x12", reg::uarch_x12},
{"uarch_x13", reg::uarch_x13},
{"uarch_x14", reg::uarch_x14},
{"uarch_x15", reg::uarch_x15},
{"uarch_x16", reg::uarch_x16},
{"uarch_x17", reg::uarch_x17},
{"uarch_x18", reg::uarch_x18},
{"uarch_x19", reg::uarch_x19},
{"uarch_x20", reg::uarch_x20},
{"uarch_x21", reg::uarch_x21},
{"uarch_x22", reg::uarch_x22},
{"uarch_x23", reg::uarch_x23},
{"uarch_x24", reg::uarch_x24},
{"uarch_x25", reg::uarch_x25},
{"uarch_x26", reg::uarch_x26},
{"uarch_x27", reg::uarch_x27},
{"uarch_x28", reg::uarch_x28},
{"uarch_x29", reg::uarch_x29},
{"uarch_x30", reg::uarch_x30},
{"uarch_x31", reg::uarch_x31},
{"uarch_pc", reg::uarch_pc},
{"uarch_cycle", reg::uarch_cycle},
{"uarch_halt_flag", reg::uarch_halt_flag},
};
auto got = g_reg_name.find(name);
if (got == g_reg_name.end()) {
throw std::domain_error{"invalid register"};
}
return got->second;
}
static auto reg_to_name(machine::reg r) {
using reg = machine::reg;
switch (r) {
case reg::x0:
return "x0";
case reg::x1:
return "x1";
case reg::x2:
return "x2";
case reg::x3:
return "x3";
case reg::x4:
return "x4";
case reg::x5:
return "x5";
case reg::x6:
return "x6";
case reg::x7:
return "x7";
case reg::x8:
return "x8";
case reg::x9:
return "x9";
case reg::x10:
return "x10";
case reg::x11:
return "x11";
case reg::x12:
return "x12";
case reg::x13:
return "x13";
case reg::x14:
return "x14";
case reg::x15:
return "x15";
case reg::x16:
return "x16";
case reg::x17:
return "x17";
case reg::x18:
return "x18";
case reg::x19:
return "x19";
case reg::x20:
return "x20";
case reg::x21:
return "x21";
case reg::x22:
return "x22";
case reg::x23:
return "x23";
case reg::x24:
return "x24";
case reg::x25:
return "x25";
case reg::x26:
return "x26";
case reg::x27:
return "x27";
case reg::x28:
return "x28";
case reg::x29:
return "x29";
case reg::x30:
return "x30";
case reg::x31:
return "x31";
case reg::f0:
return "f0";
case reg::f1:
return "f1";
case reg::f2:
return "f2";
case reg::f3:
return "f3";
case reg::f4:
return "f4";
case reg::f5:
return "f5";
case reg::f6:
return "f6";
case reg::f7:
return "f7";
case reg::f8:
return "f8";
case reg::f9:
return "f9";
case reg::f10:
return "f10";
case reg::f11:
return "f11";
case reg::f12:
return "f12";
case reg::f13:
return "f13";
case reg::f14:
return "f14";
case reg::f15:
return "f15";
case reg::f16:
return "f16";
case reg::f17:
return "f17";
case reg::f18:
return "f18";
case reg::f19:
return "f19";
case reg::f20:
return "f20";
case reg::f21:
return "f21";
case reg::f22:
return "f22";
case reg::f23:
return "f23";
case reg::f24:
return "f24";
case reg::f25:
return "f25";
case reg::f26:
return "f26";
case reg::f27:
return "f27";
case reg::f28:
return "f28";
case reg::f29:
return "f29";
case reg::f30:
return "f30";
case reg::f31:
return "f31";
case reg::pc:
return "pc";
case reg::fcsr:
return "fcsr";
case reg::mvendorid:
return "mvendorid";
case reg::marchid:
return "marchid";
case reg::mimpid:
return "mimpid";
case reg::mcycle:
return "mcycle";
case reg::icycleinstret:
return "icycleinstret";
case reg::mstatus:
return "mstatus";
case reg::mtvec:
return "mtvec";
case reg::mscratch:
return "mscratch";
case reg::mepc:
return "mepc";
case reg::mcause:
return "mcause";
case reg::mtval:
return "mtval";
case reg::misa:
return "misa";
case reg::mie:
return "mie";
case reg::mip:
return "mip";
case reg::medeleg:
return "medeleg";
case reg::mideleg:
return "mideleg";
case reg::mcounteren:
return "mcounteren";
case reg::menvcfg:
return "menvcfg";
case reg::stvec:
return "stvec";
case reg::sscratch:
return "sscratch";
case reg::sepc:
return "sepc";
case reg::scause:
return "scause";
case reg::stval:
return "stval";
case reg::satp:
return "satp";
case reg::scounteren:
return "scounteren";
case reg::senvcfg:
return "senvcfg";
case reg::ilrsc:
return "ilrsc";
case reg::iflags:
return "iflags";
case reg::iflags_prv:
return "iflags_prv";
case reg::iflags_x:
return "iflags_x";
case reg::iflags_y:
return "iflags_y";
case reg::iflags_h:
return "iflags_h";
case reg::iunrep:
return "iunrep";
case reg::clint_mtimecmp:
return "clint_mtimecmp";
case reg::plic_girqpend:
return "plic_girqpend";
case reg::plic_girqsrvd:
return "plic_girqsrvd";
case reg::htif_tohost:
return "htif_tohost";
case reg::htif_tohost_dev:
return "htif_tohost_dev";
case reg::htif_tohost_cmd:
return "htif_tohost_cmd";
case reg::htif_tohost_reason:
return "htif_tohost_reason";
case reg::htif_tohost_data:
return "htif_tohost_data";
case reg::htif_fromhost:
return "htif_fromhost";
case reg::htif_fromhost_dev:
return "htif_fromhost_dev";
case reg::htif_fromhost_cmd:
return "htif_fromhost_cmd";
case reg::htif_fromhost_reason:
return "htif_fromhost_reason";
case reg::htif_fromhost_data:
return "htif_fromhost_data";
case reg::htif_ihalt:
return "htif_ihalt";
case reg::htif_iconsole:
return "htif_iconsole";
case reg::htif_iyield:
return "htif_iyield";
case reg::uarch_x0:
return "uarch_x0";
case reg::uarch_x1:
return "uarch_x1";
case reg::uarch_x2:
return "uarch_x2";
case reg::uarch_x3:
return "uarch_x3";
case reg::uarch_x4:
return "uarch_x4";
case reg::uarch_x5:
return "uarch_x5";
case reg::uarch_x6:
return "uarch_x6";
case reg::uarch_x7:
return "uarch_x7";
case reg::uarch_x8:
return "uarch_x8";
case reg::uarch_x9:
return "uarch_x9";
case reg::uarch_x10:
return "uarch_x10";
case reg::uarch_x11:
return "uarch_x11";
case reg::uarch_x12:
return "uarch_x12";
case reg::uarch_x13:
return "uarch_x13";
case reg::uarch_x14:
return "uarch_x14";
case reg::uarch_x15:
return "uarch_x15";
case reg::uarch_x16:
return "uarch_x16";
case reg::uarch_x17:
return "uarch_x17";
case reg::uarch_x18:
return "uarch_x18";
case reg::uarch_x19:
return "uarch_x19";
case reg::uarch_x20:
return "uarch_x20";
case reg::uarch_x21:
return "uarch_x21";
case reg::uarch_x22:
return "uarch_x22";
case reg::uarch_x23:
return "uarch_x23";
case reg::uarch_x24:
return "uarch_x24";
case reg::uarch_x25:
return "uarch_x25";
case reg::uarch_x26:
return "uarch_x26";
case reg::uarch_x27:
return "uarch_x27";
case reg::uarch_x28:
return "uarch_x28";
case reg::uarch_x29:
return "uarch_x29";
case reg::uarch_x30:
return "uarch_x30";
case reg::uarch_x31:
return "uarch_x31";
case reg::uarch_pc:
return "uarch_pc";
case reg::uarch_cycle:
return "uarch_cycle";
case reg::uarch_halt_flag:
return "uarch_halt_flag";
default:
throw std::domain_error{"invalid register"};
break;
}
return "";
}
interpreter_break_reason interpreter_break_reason_from_name(const std::string &name) {
using ibr = interpreter_break_reason;
const static std::unordered_map<std::string, ibr> g_ibr_name = {{"failed", ibr::failed}, {"halted", ibr::halted},
{"yielded_manually", ibr::yielded_manually}, {"yielded_automatically", ibr::yielded_automatically},
{"yielded_softly", ibr::yielded_softly}, {"reached_target_mcycle", ibr::reached_target_mcycle}};
auto got = g_ibr_name.find(name);
if (got == g_ibr_name.end()) {
throw std::domain_error{"invalid interpreter break reason"};
}
return got->second;
}
uarch_interpreter_break_reason uarch_interpreter_break_reason_from_name(const std::string &name) {
using uibr = uarch_interpreter_break_reason;
if (name == "reached_target_cycle") {
return uibr::reached_target_cycle;
}
if (name == "uarch_halted") {
return uibr::uarch_halted;
}
throw std::domain_error{"invalid uarch interpreter break reason"};
}
static std::string access_type_name(access_type at) {
switch (at) {
case access_type::read:
return "read";
case access_type::write:
return "write";
}
throw std::domain_error{"invalid access type"};
}
static std::string bracket_type_name(bracket_type bt) {
switch (bt) {
case bracket_type::begin:
return "begin";
case bracket_type::end:
return "end";
}
throw std::domain_error{"invalid bracket type"};
}
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, std::string &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
value = jk.template get<std::string>();
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, std::string &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, std::string &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, bool &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_boolean()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a Boolean");
}
value = jk.template get<bool>();
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, bool &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, bool &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, uint64_t &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_number_integer() && !jk.is_number_unsigned() && !jk.is_number_float()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not an unsigned integer");
}
if (jk.is_number_float()) {
auto f = jk.template get<nlohmann::json::number_float_t>();
if (f < 0 || std::fmod(f, static_cast<nlohmann::json::number_float_t>(1.0)) != 0 ||
f > static_cast<nlohmann::json::number_float_t>(UINT64_MAX)) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not an unsigned integer");
}
value = static_cast<uint64_t>(f);
return;
}
if (jk.is_number_unsigned()) {
value = jk.template get<uint64_t>();
return;
}
auto i = jk.template get<nlohmann::json::number_integer_t>();
// in case of negative integers, cast them to the unsigned representation
value = static_cast<uint64_t>(i);
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, uint64_t &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, uint64_t &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, uint32_t &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
uint64_t value64 = 0;
ju_get_field(j, key, value64, path);
if (value64 > UINT32_MAX) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" out of range");
}
value = static_cast<uint32_t>(value64);
}
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, uint16_t &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
uint64_t value64 = 0;
ju_get_field(j, key, value64, path);
if (value64 > UINT16_MAX) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" out of range");
}
value = static_cast<uint16_t>(value64);
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, uint32_t &value,
const std::string &path);
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, uint16_t &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, uint32_t &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, uint16_t &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, semantic_version &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_object()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a semantic version");
}
const auto new_path = path + to_string(key) + "/";
ju_get_field(jk, "major"s, value.major, new_path);
ju_get_field(jk, "minor"s, value.minor, new_path);
ju_get_field(jk, "patch"s, value.patch, new_path);
ju_get_field(jk, "pre_release"s, value.pre_release, new_path);
ju_get_field(jk, "build"s, value.build, new_path);
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, semantic_version &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, semantic_version &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, machine::reg &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
value = reg_from_name(jk.template get<std::string>());
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, machine::reg &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, machine::reg &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, interpreter_break_reason &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
value = interpreter_break_reason_from_name(jk.template get<std::string>());
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, interpreter_break_reason &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key,
interpreter_break_reason &value, const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, uarch_interpreter_break_reason &value,
const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
value = uarch_interpreter_break_reason_from_name(jk.template get<std::string>());
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key,
uarch_interpreter_break_reason &value, const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key,
uarch_interpreter_break_reason &value, const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, concurrency_runtime_config &value,
const std::string &path) {
if (!contains(j, key)) {
return;
}
ju_get_opt_field(j[key], "update_merkle_tree"s, value.update_merkle_tree, path + to_string(key) + "/");
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key,
concurrency_runtime_config &value, const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key,
concurrency_runtime_config &value, const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, htif_runtime_config &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
ju_get_opt_field(j[key], "no_console_putchar"s, value.no_console_putchar, path + to_string(key) + "/");
}
template void ju_get_opt_field<bool>(const nlohmann::json &j, const bool &key, htif_runtime_config &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, htif_runtime_config &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, machine_runtime_config &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
ju_get_opt_field(j[key], "concurrency"s, value.concurrency, path + to_string(key) + "/");
ju_get_opt_field(j[key], "htif"s, value.htif, path + to_string(key) + "/");
ju_get_opt_field(j[key], "skip_root_hash_check"s, value.skip_root_hash_check, path + to_string(key) + "/");
ju_get_opt_field(j[key], "skip_root_hash_store"s, value.skip_root_hash_store, path + to_string(key) + "/");
ju_get_opt_field(j[key], "skip_version_check"s, value.skip_version_check, path + to_string(key) + "/");
ju_get_opt_field(j[key], "soft_yield"s, value.soft_yield, path + to_string(key) + "/");
ju_get_opt_field(j[key], "copy_reflink"s, value.copy_reflink, path + to_string(key) + "/");
ju_get_opt_field(j[key], "backing_storage"s, value.backing_storage, path + to_string(key) + "/");
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, machine_runtime_config &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key,
machine_runtime_config &value, const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, machine_merkle_tree::proof_type::hash_type &value,
const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
std::string bin = decode_base64(jk.template get<std::string>());
if (bin.size() != value.size()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a base64-encoded 256-bit hash");
}
std::copy(bin.begin(), bin.end(), value.data());
}
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key,
std::optional<machine_merkle_tree::proof_type::hash_type> &optional, const std::string &path) {
optional = {};
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
std::string bin = decode_base64(jk.template get<std::string>());
optional.emplace();
if (bin.size() != optional.value().size()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a base64-encoded 256-bit hash");
}
std::copy(bin.begin(), bin.end(), optional.value().data());
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key,
machine_merkle_tree::proof_type::hash_type &value, const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key,
machine_merkle_tree::proof_type::hash_type &value, const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key,
not_default_constructible<machine_merkle_tree::proof_type> &value, const std::string &path) {
value = {};
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
const auto new_path = path + to_string(key) + "/";
uint64_t log2_root_size = 0;
ju_get_field(jk, "log2_root_size"s, log2_root_size, new_path);
if (log2_root_size > INT_MAX) {
throw std::domain_error("field \""s + new_path + "log2_root_size\" is out of bounds");
}
uint64_t log2_target_size = 0;
ju_get_field(jk, "log2_target_size"s, log2_target_size, new_path);
if (log2_root_size > INT_MAX) {
throw std::domain_error("field \""s + new_path + "log2_target_size\" is out of bounds");
}
value.emplace(static_cast<int>(log2_root_size), static_cast<int>(log2_target_size));
auto &proof = value.value();
machine_merkle_tree::proof_type::address_type target_address = 0;
ju_get_field(jk, "target_address"s, target_address, new_path);
proof.set_target_address(target_address);
machine_merkle_tree::proof_type::hash_type target_hash;
ju_get_field(jk, "target_hash"s, target_hash, new_path);
proof.set_target_hash(target_hash);
machine_merkle_tree::proof_type::hash_type root_hash;
ju_get_field(jk, "root_hash"s, root_hash, new_path);
proof.set_root_hash(root_hash);
if (!contains(jk, "sibling_hashes")) {
throw std::invalid_argument("missing field \""s + new_path + "sibling_hashes\""s);
}
const auto &sh = jk["sibling_hashes"];
if (!sh.is_array()) {
throw std::invalid_argument("field \""s + new_path + "sibling_hashes\" not an array"s);
}
const auto sibling_hashes_base = path + "sibling_hashes/";
for (int log2_size = proof.get_log2_target_size(), i = 0; log2_size < proof.get_log2_root_size();
++log2_size, ++i) {
machine_merkle_tree::proof_type::hash_type sibling_hash;
ju_get_field(sh, i, sibling_hash, sibling_hashes_base);
proof.set_sibling_hash(sibling_hash, log2_size);
}
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key,
not_default_constructible<machine_merkle_tree::proof_type> &value, const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key,
not_default_constructible<machine_merkle_tree::proof_type> &value, const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, access_type &value, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
const auto &v = jk.template get<std::string>();
if (v == "read") {
value = access_type::read;
return;
}
if (v == "write") {
value = access_type::write;
return;
}
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not an access type");
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, access_type &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, access_type &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, access_data &data, const std::string &path) {
data.clear();
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
const auto &bin = decode_base64(jk.template get<std::string>());
std::copy(bin.begin(), bin.end(), std::back_inserter(data));
}
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, std::optional<access_data> &optional,
const std::string &path) {
optional = {};
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_string()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not a string");
}
const auto &bin = decode_base64(jk.template get<std::string>());
optional.emplace();
std::copy(bin.begin(), bin.end(), std::back_inserter(optional.value()));
}
template void ju_get_opt_field<uint64_t>(const nlohmann::json &j, const uint64_t &key, access_data &value,
const std::string &path);
template void ju_get_opt_field<std::string>(const nlohmann::json &j, const std::string &key, access_data &value,
const std::string &path);
template <typename K>
void ju_get_opt_field(const nlohmann::json &j, const K &key, access &access, const std::string &path) {
if (!contains(j, key)) {
return;
}
const auto &jk = j[key];
if (!jk.is_object()) {
throw std::invalid_argument("field \""s + path + to_string(key) + "\" not an object");
}
const auto new_path = path + to_string(key) + "/";
access_type type = access_type::read;
ju_get_field(jk, "type"s, type, new_path);
access.set_type(type);
uint64_t log2_size = 0;
ju_get_field(jk, "log2_size"s, log2_size, new_path);
if (log2_size >= 64) {
throw std::domain_error("field \""s + new_path + "log2_size\" is out of bounds");
}
access.set_log2_size(static_cast<int>(log2_size));
// Minimum logged data size is merkle tree word size
const uint64_t data_log2_size =
std::max(log2_size, static_cast<uint64_t>(machine_merkle_tree::get_log2_word_size()));
uint64_t address = 0;
ju_get_field(jk, "address"s, address, new_path);
access.set_address(address);
machine_merkle_tree::proof_type::hash_type read_hash;
ju_get_field(jk, "read_hash", read_hash, new_path);
access.set_read_hash(read_hash);
not_default_constructible<machine_merkle_tree::proof_type::hash_type> written_hash;
ju_get_opt_field(jk, "written_hash", written_hash, new_path);
if (written_hash.has_value()) {
access.set_written_hash(written_hash.value());
}
std::optional<access_data> read;
ju_get_opt_field(jk, "read"s, read, new_path);
if (read.has_value()) {
if (read.value().size() != (UINT64_C(1) << data_log2_size)) {
throw std::invalid_argument("field \""s + new_path + "written\" has wrong length");
}
access.set_read(std::move(read.value()));