JSON JSON::operator[] (const std::string & name) const
{
Pos pos = searchField(name);
if (!pos)
throw JSONException("JSON: there is no element '" + std::string(name) + "' in object.");
return JSON(pos, ptr_end, level + 1).getValue();
}
void FieldAstDeserializer::operator ()(float& v, const char* name, u32 name_hash) {
const AstField* field = searchField(fields, name, name_hash);
if (field == nullptr)
return;
const AstExpression& number = field->expression;
assert(number.type == AstExpression::NUMBER);
v = numberAsFloat(*number.number);
}
AstFlagSetter<T> FieldAstDeserializer::flags(T& v, const char* name, u32 name_hash) {
const AstField* field = searchField(fields, name, name_hash);
if (field == nullptr)
return AstFlagSetter<T>(nullptr, nullptr);
const AstExpression& sequence = field->expression;
assert(sequence.type == AstExpression::LIST);
return AstFlagSetter<T>(sequence.sequence, &v);
}
void FieldAstDeserializer::operator ()(std::string& v, const char* name, u32 name_hash) {
const AstField* field = searchField(fields, name, name_hash);
if (field == nullptr)
return;
const AstExpression& str = field->expression;
assert(str.type == AstExpression::STRING);
v.assign(str.string->begin, str.string->end);
}
void FieldAstDeserializer::operator ()(Quaternion& v, const char* name, u32 name_hash) {
const AstField* field = searchField(fields, name, name_hash);
if (field == nullptr)
return;
const AstExpression& tuple = field->expression;
assert(tuple.type == AstExpression::TUPLE);
const AstSequence* e = tuple.sequence;
for (size_t i = 0; i < 4; ++i) {
assert(e != nullptr);
assert(e->type == AstExpression::NUMBER);
(i == 3 ? v.w : v.v[i]) = numberAsFloat(*e->number);
e = e->next;
}
assert(e == nullptr);
}
void FieldAstDeserializer::operator ()(Handle& v, const char* name, u32 name_hash) {
const AstField* field = searchField(fields, name, name_hash);
if (field == nullptr)
return;
const AstExpression& expr = field->expression;
if (expr.type == AstExpression::INSTANCE) {
v = scene_reader->deserializeObject(*expr.instance);
} else if (expr.type == AstExpression::HANDLE_NAME) {
const AstHandleName& hname = *expr.handle_name;
if (hname.begin == nullptr) {
v = Handle();
} else {
v = scene_reader->handle_map.at(std::string(hname.begin, hname.end));
}
} else {
assert(false);
}
}
bool JSON::has(const char * data, size_t size) const
{
return nullptr != searchField(data, size);
}