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crosslang/src/vm/bc/tostring.cpp
T

135 lines
4.7 KiB
C++

/*
CrossLang is a dynamically-typed scripting language built on
TessesFramework, named in honor of Jesus's sacrifice.
Copyright (C) 2026 Mike Nolan
SPDX-License-Identifier: GPL-3.0-or-later WITH TessesFramework-Exception-1.0
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "CrossLang.hpp"
#include "TessesFramework/Serialization/BitConverter.hpp"
#include "TessesFramework/Streams/ByteReader.hpp"
#include "TessesFramework/Uuid.hpp"
#include <cmath>
#include <cstddef>
#include <cstring>
#include <exception>
#include <iostream>
#include <sstream>
#include <variant>
namespace Tesses::CrossLang {
std::string ToString(std::shared_ptr<GC> gc, TObject o) {
if (std::holds_alternative<Tesses::Framework::Filesystem::VFSPath>(o)) {
return std::get<Tesses::Framework::Filesystem::VFSPath>(o).ToString();
}
if (std::holds_alternative<std::string>(o)) {
return std::get<std::string>(o);
}
if (std::holds_alternative<TVMVersion>(o)) {
return std::get<TVMVersion>(o).ToString();
}
if (std::holds_alternative<int64_t>(o)) {
return std::to_string(std::get<int64_t>(o));
}
if (std::holds_alternative<double>(o)) {
return std::to_string(std::get<double>(o));
}
if (std::holds_alternative<char>(o)) {
return std::string{std::get<char>(o)};
}
if (IsNull(o)) {
return "null";
}
if (std::holds_alternative<Undefined>(o)) {
return "undefined";
}
if (std::holds_alternative<bool>(o)) {
return std::get<bool>(o) ? "true" : "false";
}
if (std::holds_alternative<
std::shared_ptr<Tesses::Framework::Date::DateTime>>(o)) {
return std::get<std::shared_ptr<Tesses::Framework::Date::DateTime>>(o)
->ToString();
}
if (std::holds_alternative<
std::shared_ptr<Tesses::Framework::Date::TimeSpan>>(o)) {
return std::get<std::shared_ptr<Tesses::Framework::Date::TimeSpan>>(o)
->ToString(false);
}
if (std::holds_alternative<Tesses::Framework::Uuid>(o)) {
return std::get<Tesses::Framework::Uuid>(o).ToString(
Framework::UuidStringifyConfig::LowercaseNoCurly);
}
if (std::holds_alternative<THeapObject *>(o)) {
auto obj = std::get<THeapObject *>(o);
auto dict = dynamic_cast<TDictionary *>(obj);
auto list = dynamic_cast<TList *>(obj);
auto bArray = dynamic_cast<TByteArray *>(obj);
auto natObj = dynamic_cast<TNativeObject *>(obj);
auto cls = dynamic_cast<TClassObject *>(obj);
auto aArray = dynamic_cast<TAssociativeArray *>(obj);
if (aArray != nullptr) {
std::string str = {};
gc->BarrierBegin();
bool first = true;
for (auto item : aArray->items) {
if (!first)
str.push_back('\n');
first = false;
str.push_back('[');
str.append(Json_Encode(item.first));
str.append("] = ");
str.append(Json_Encode(item.second));
str.append(";");
}
gc->BarrierEnd();
return str;
}
if (cls != nullptr) {
auto res = cls->GetValue("", "ToString");
TCallable *call;
GCList ls(gc);
if (GetObjectHeap(res, call))
return ToString(gc, call->Call(ls, {}));
return cls->TypeName();
}
if (natObj != nullptr) {
GCList ls(gc);
TObject o = natObj->CallMethod(ls, "ToString", {});
return ToString(gc, o);
}
if (dict != nullptr) {
GCList ls(gc);
if (dict->MethodExists(ls, "ToString"))
return ToString(gc, dict->CallMethod(ls, "ToString", {}));
else {
return Json_Encode(dict);
}
} else if (bArray != nullptr) {
return std::string(bArray->data.begin(), bArray->data.end());
} else if (list != nullptr) {
return Json_Encode(list);
}
}
return "";
}
} // namespace Tesses::CrossLang