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#include "squirrel/squirrel.h"
#include "rapidjson/error/en.h"
#include "rapidjson/document.h"
#include "rapidjson/writer.h"
#include "rapidjson/stringbuffer.h"
#ifdef _MSC_VER
#undef GetObject // fuck microsoft developers
#endif
template <ScriptContext context> void
DecodeJsonArray(HSquirrelVM* sqvm, rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>* arr)
{
g_pSquirrel<context>->newarray(sqvm, 0);
for (auto& itr : arr->GetArray())
{
switch (itr.GetType())
{
case rapidjson::kObjectType:
DecodeJsonTable<context>(sqvm, &itr);
g_pSquirrel<context>->arrayappend(sqvm, -2);
break;
case rapidjson::kArrayType:
DecodeJsonArray<context>(sqvm, &itr);
g_pSquirrel<context>->arrayappend(sqvm, -2);
break;
case rapidjson::kStringType:
g_pSquirrel<context>->pushstring(sqvm, itr.GetString(), -1);
g_pSquirrel<context>->arrayappend(sqvm, -2);
break;
case rapidjson::kTrueType:
case rapidjson::kFalseType:
g_pSquirrel<context>->pushbool(sqvm, itr.GetBool());
g_pSquirrel<context>->arrayappend(sqvm, -2);
break;
case rapidjson::kNumberType:
if (itr.IsDouble() || itr.IsFloat())
g_pSquirrel<context>->pushfloat(sqvm, itr.GetFloat());
else
g_pSquirrel<context>->pushinteger(sqvm, itr.GetInt());
g_pSquirrel<context>->arrayappend(sqvm, -2);
break;
case rapidjson::kNullType:
break;
}
}
}
template <ScriptContext context> void
DecodeJsonTable(HSquirrelVM* sqvm, rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>* obj)
{
g_pSquirrel<context>->newtable(sqvm);
for (auto itr = obj->MemberBegin(); itr != obj->MemberEnd(); itr++)
{
switch (itr->value.GetType())
{
case rapidjson::kObjectType:
g_pSquirrel<context>->pushstring(sqvm, itr->name.GetString(), -1);
DecodeJsonTable<context>(
sqvm, (rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>*)&itr->value);
g_pSquirrel<context>->newslot(sqvm, -3, false);
break;
case rapidjson::kArrayType:
g_pSquirrel<context>->pushstring(sqvm, itr->name.GetString(), -1);
DecodeJsonArray<context>(
sqvm, (rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>*)&itr->value);
g_pSquirrel<context>->newslot(sqvm, -3, false);
break;
case rapidjson::kStringType:
g_pSquirrel<context>->pushstring(sqvm, itr->name.GetString(), -1);
g_pSquirrel<context>->pushstring(sqvm, itr->value.GetString(), -1);
g_pSquirrel<context>->newslot(sqvm, -3, false);
break;
case rapidjson::kTrueType:
case rapidjson::kFalseType:
g_pSquirrel<context>->pushstring(sqvm, itr->name.GetString(), -1);
g_pSquirrel<context>->pushbool(sqvm, itr->value.GetBool());
g_pSquirrel<context>->newslot(sqvm, -3, false);
break;
case rapidjson::kNumberType:
if (itr->value.IsDouble() || itr->value.IsFloat())
{
g_pSquirrel<context>->pushstring(sqvm, itr->name.GetString(), -1);
g_pSquirrel<context>->pushfloat(sqvm, itr->value.GetFloat());
}
else
{
g_pSquirrel<context>->pushstring(sqvm, itr->name.GetString(), -1);
g_pSquirrel<context>->pushinteger(sqvm, itr->value.GetInt());
}
g_pSquirrel<context>->newslot(sqvm, -3, false);
break;
case rapidjson::kNullType:
break;
}
}
}
template <ScriptContext context> void EncodeJSONTable(
SQTable* table,
rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>* obj,
rapidjson::MemoryPoolAllocator<SourceAllocator>& allocator)
{
for (int i = 0; i < table->_numOfNodes; i++)
{
tableNode* node = &table->_nodes[i];
if (node->key._Type == OT_STRING)
{
rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>> newObj(rapidjson::kObjectType);
rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>> newArray(rapidjson::kArrayType);
switch (node->val._Type)
{
case OT_STRING:
obj->AddMember(
rapidjson::StringRef(node->key._VAL.asString->_val), rapidjson::StringRef(node->val._VAL.asString->_val), allocator);
break;
case OT_INTEGER:
obj->AddMember(rapidjson::StringRef(node->key._VAL.asString->_val), node->val._VAL.asInteger, allocator);
break;
case OT_FLOAT:
obj->AddMember(rapidjson::StringRef(node->key._VAL.asString->_val), node->val._VAL.asFloat, allocator);
break;
case OT_BOOL:
if (node->val._VAL.asInteger)
{
obj->AddMember(rapidjson::StringRef(node->key._VAL.asString->_val), true, allocator);
}
else
{
obj->AddMember(rapidjson::StringRef(node->key._VAL.asString->_val), false, allocator);
}
break;
case OT_TABLE:
EncodeJSONTable<context>(node->val._VAL.asTable, &newObj, allocator);
obj->AddMember(rapidjson::StringRef(node->key._VAL.asString->_val), newObj, allocator);
break;
case OT_ARRAY:
EncodeJSONArray<context>(node->val._VAL.asArray, &newArray, allocator);
obj->AddMember(rapidjson::StringRef(node->key._VAL.asString->_val), newArray, allocator);
break;
default:
spdlog::warn("SQ_EncodeJSON: squirrel type {} not supported", SQTypeNameFromID(node->val._Type));
break;
}
}
}
}
template <ScriptContext context> void EncodeJSONArray(
SQArray* arr,
rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>* obj,
rapidjson::MemoryPoolAllocator<SourceAllocator>& allocator)
{
for (int i = 0; i < arr->_usedSlots; i++)
{
SQObject* node = &arr->_values[i];
rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>> newObj(rapidjson::kObjectType);
rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>> newArray(rapidjson::kArrayType);
switch (node->_Type)
{
case OT_STRING:
obj->PushBack(rapidjson::StringRef(node->_VAL.asString->_val), allocator);
break;
case OT_INTEGER:
obj->PushBack(node->_VAL.asInteger, allocator);
break;
case OT_FLOAT:
obj->PushBack(node->_VAL.asFloat, allocator);
break;
case OT_BOOL:
if (node->_VAL.asInteger)
obj->PushBack(rapidjson::StringRef("true"), allocator);
else
obj->PushBack(rapidjson::StringRef("false"), allocator);
break;
case OT_TABLE:
EncodeJSONTable<context>(node->_VAL.asTable, &newObj, allocator);
obj->PushBack(newObj, allocator);
break;
case OT_ARRAY:
EncodeJSONArray<context>(node->_VAL.asArray, &newArray, allocator);
obj->PushBack(newArray, allocator);
break;
default:
spdlog::info("SQ encode Json type {} not supported", SQTypeNameFromID(node->_Type));
}
}
}
ADD_SQFUNC(
"table",
DecodeJSON,
"string json, bool fatalParseErrors = false",
"converts a json string to a squirrel table",
ScriptContext::UI | ScriptContext::CLIENT | ScriptContext::SERVER)
{
const char* pJson = g_pSquirrel<context>->getstring(sqvm, 1);
const bool bFatalParseErrors = g_pSquirrel<context>->getbool(sqvm, 2);
rapidjson_document doc;
doc.Parse(pJson);
if (doc.HasParseError())
{
g_pSquirrel<context>->newtable(sqvm);
std::string sErrorString = fmt::format(
"Failed parsing json file: encountered parse error \"{}\" at offset {}",
GetParseError_En(doc.GetParseError()),
doc.GetErrorOffset());
if (bFatalParseErrors)
{
g_pSquirrel<context>->raiseerror(sqvm, sErrorString.c_str());
return SQRESULT_ERROR;
}
spdlog::warn(sErrorString);
return SQRESULT_NOTNULL;
}
DecodeJsonTable<context>(sqvm, (rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<SourceAllocator>>*)&doc);
return SQRESULT_NOTNULL;
}
ADD_SQFUNC(
"string",
EncodeJSON,
"table data",
"converts a squirrel table to a json string",
ScriptContext::UI | ScriptContext::CLIENT | ScriptContext::SERVER)
{
rapidjson_document doc;
doc.SetObject();
// temp until this is just the func parameter type
HSquirrelVM* vm = (HSquirrelVM*)sqvm;
SQTable* table = vm->_stackOfCurrentFunction[1]._VAL.asTable;
EncodeJSONTable<context>(table, &doc, doc.GetAllocator());
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
doc.Accept(writer);
const char* pJsonString = buffer.GetString();
g_pSquirrel<context>->pushstring(sqvm, pJsonString, -1);
return SQRESULT_NOTNULL;
}
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