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#include "NodeTools.hpp"
using namespace OpenVic;
using namespace OpenVic::NodeTools;
template<typename T>
static node_callback_t _expect_type(callback_t<T const&> callback) {
return [callback](ast::NodeCPtr node) -> bool {
if (node != nullptr) {
T const* cast_node = node->cast_to<T>();
if (cast_node != nullptr) {
return callback(*cast_node);
}
Logger::error("Invalid node type ", node->get_type(), " when expecting ", T::get_type_static());
} else {
Logger::error("Null node when expecting ", T::get_type_static());
}
return false;
};
}
template<typename T = ast::AbstractStringNode>
requires(std::derived_from<T, ast::AbstractStringNode>)
static callback_t<T const&> abstract_string_node_callback(callback_t<std::string_view> callback) {
return [callback](T const& node) -> bool {
return callback(node._name);
};
}
node_callback_t NodeTools::expect_identifier(callback_t<std::string_view> callback) {
return _expect_type<ast::IdentifierNode>(abstract_string_node_callback<ast::IdentifierNode>(callback));
}
node_callback_t NodeTools::expect_string(callback_t<std::string_view> callback) {
return _expect_type<ast::StringNode>(abstract_string_node_callback<ast::StringNode>(callback));
}
node_callback_t NodeTools::expect_identifier_or_string(callback_t<std::string_view> callback) {
return [callback](ast::NodeCPtr node) -> bool {
if (node != nullptr) {
ast::AbstractStringNode const* cast_node = node->cast_to<ast::IdentifierNode>();
if (cast_node == nullptr) {
cast_node = node->cast_to<ast::StringNode>();
}
if (cast_node != nullptr) {
return abstract_string_node_callback(callback)(*cast_node);
}
Logger::error("Invalid node type ", node->get_type(), " when expecting ", ast::IdentifierNode::get_type_static(), " or ", ast::StringNode::get_type_static());
} else {
Logger::error("Null node when expecting ", ast::IdentifierNode::get_type_static(), " or ", ast::StringNode::get_type_static());
}
return false;
};
}
node_callback_t NodeTools::expect_bool(callback_t<bool> callback) {
return expect_identifier(
[callback](std::string_view identifier) -> bool {
if (identifier == "yes") {
return callback(true);
} else if (identifier == "no") {
return callback(false);
}
Logger::error("Invalid bool identifier text: ", identifier);
return false;
}
);
}
node_callback_t NodeTools::expect_int(callback_t<int64_t> callback) {
return expect_identifier(
[callback](std::string_view identifier) -> bool {
bool successful = false;
const int64_t val = StringUtils::string_to_int64(identifier, &successful, 10);
if (successful) {
return callback(val);
}
Logger::error("Invalid int identifier text: ", identifier);
return false;
}
);
}
node_callback_t NodeTools::expect_uint(callback_t<uint64_t> callback) {
return expect_identifier(
[callback](std::string_view identifier) -> bool {
bool successful = false;
const uint64_t val = StringUtils::string_to_uint64(identifier, &successful, 10);
if (successful) {
return callback(val);
}
Logger::error("Invalid uint identifier text: ", identifier);
return false;
}
);
}
node_callback_t NodeTools::expect_fixed_point(callback_t<fixed_point_t> callback) {
return expect_identifier(
[callback](std::string_view identifier) -> bool {
bool successful = false;
const fixed_point_t val = fixed_point_t::parse(identifier.data(), identifier.length(), &successful);
if (successful) {
return callback(val);
}
Logger::error("Invalid fixed point identifier text: ", identifier);
return false;
}
);
}
node_callback_t NodeTools::expect_colour(callback_t<colour_t> callback) {
return [callback](ast::NodeCPtr node) -> bool {
colour_t col = NULL_COLOUR;
uint32_t components = 0;
bool ret = expect_list_of_length(3,
expect_fixed_point(
[&col, &components](fixed_point_t val) -> bool {
components++;
col <<= 8;
if (val < 0 || val > 255) {
Logger::error("Invalid colour component: ", val);
return false;
} else {
if (val <= 1) val *= 255;
col |= val.to_int32_t();
return true;
}
}
)
)(node);
ret &= callback(col << 8 * (3 - components));
return ret;
};
}
node_callback_t NodeTools::expect_date(callback_t<Date> callback) {
return expect_identifier(
[callback](std::string_view identifier) -> bool {
bool successful = false;
const Date date = Date::from_string(identifier, &successful);
if (successful) {
return callback(date);
}
Logger::error("Invalid date identifier text: ", identifier);
return false;
}
);
}
node_callback_t NodeTools::expect_assign(key_value_callback_t callback) {
return _expect_type<ast::AssignNode>(
[callback](ast::AssignNode const& assign_node) -> bool {
return callback(assign_node._name, assign_node._initializer.get());
}
);
}
node_callback_t NodeTools::expect_list_and_length(length_callback_t length_callback, node_callback_t callback) {
return _expect_type<ast::AbstractListNode>(
[length_callback, callback](ast::AbstractListNode const& list_node) -> bool {
std::vector<ast::NodeUPtr> const& list = list_node._statements;
bool ret = true;
size_t size = length_callback(list.size());
if (size > list.size()) {
Logger::error("Trying to read more values than the list contains: ", size, " > ", list.size());
size = list.size();
ret = false;
}
std::for_each(list.begin(), list.begin() + size,
[callback, &ret](ast::NodeUPtr const& sub_node) -> void {
ret &= callback(sub_node.get());
}
);
return ret;
}
);
}
node_callback_t NodeTools::expect_list_of_length(size_t length, node_callback_t callback) {
return [length, callback](ast::NodeCPtr node) -> bool {
bool ret = true;
ret &= expect_list_and_length(
[length, &ret](size_t size) -> size_t {
if (size != length) {
Logger::error("List length ", size, " does not match expected length ", length);
ret = false;
if (length < size) return length;
}
return size;
},
callback
)(node);
return ret;
};
}
node_callback_t NodeTools::expect_list(node_callback_t callback) {
return expect_list_and_length(default_length_callback, callback);
}
node_callback_t NodeTools::expect_dictionary_and_length(length_callback_t length_callback, key_value_callback_t callback) {
return expect_list_and_length(length_callback, expect_assign(callback));
}
node_callback_t NodeTools::expect_dictionary(key_value_callback_t callback) {
return expect_dictionary_and_length(default_length_callback, callback);
}
node_callback_t NodeTools::_expect_dictionary_keys_and_length(length_callback_t length_callback, bool allow_other_keys, key_map_t&& key_map) {
return [length_callback, allow_other_keys, key_map = std::move(key_map)](ast::NodeCPtr node) mutable -> bool {
bool ret = expect_dictionary_and_length(
length_callback,
[&key_map, allow_other_keys](std::string_view key, ast::NodeCPtr value) -> bool {
const key_map_t::iterator it = key_map.find(key);
if (it == key_map.end()) {
if (allow_other_keys) return true;
Logger::error("Invalid dictionary key: ", key);
return false;
}
dictionary_entry_t& entry = it->second;
if (++entry.count > 1 && !entry.can_repeat()) {
Logger::error("Invalid repeat of dictionary key: ", key);
return false;
}
return entry.callback(value);
}
)(node);
for (key_map_t::value_type const& key_entry : key_map) {
dictionary_entry_t const& entry = key_entry.second;
if (entry.must_appear() && entry.count < 1) {
Logger::error("Mandatory dictionary key not present: ", key_entry.first);
ret = false;
}
}
return ret;
};
}
node_callback_t NodeTools::name_list_callback(std::vector<std::string>& list) {
return expect_list_reserve_length(
list,
expect_identifier_or_string(
[&list](std::string_view str) -> bool {
if (!str.empty()) {
list.push_back(std::string { str });
return true;
}
Logger::error("Empty identifier or string");
return false;
}
)
);
}
|
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