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#include "NodeTools.hpp"
#include <charconv>
using namespace OpenVic;
template<typename T>
return_t NodeTools::expect_type(ast::NodeCPtr node, std::function<return_t(T const&)> callback) {
if (node != nullptr) {
if (node->is_type<T>()) {
return callback(ast::cast_node_cptr<T>(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 FAILURE;
}
static return_t identifier_callback_wrapper(std::function<return_t(std::string_view)> callback, std::string_view identifier) {
if (!identifier.empty()) {
return callback(identifier);
}
Logger::error("Empty identifier node string");
return FAILURE;
}
return_t NodeTools::expect_identifier(ast::NodeCPtr node, std::function<return_t(std::string_view)> callback) {
return expect_type<ast::IdentifierNode>(node, [callback](ast::IdentifierNode const& identifier_node) -> return_t {
return identifier_callback_wrapper(callback, identifier_node._name);
});
}
return_t NodeTools::expect_string(ast::NodeCPtr node, std::function<return_t(std::string_view)> callback) {
return expect_type<ast::StringNode>(node, [callback](ast::StringNode const& string_node) -> return_t {
return callback(string_node._name);
});
}
return_t NodeTools::expect_identifier_or_string(ast::NodeCPtr node, std::function<return_t(std::string_view)> callback) {
if (node != nullptr) {
if (node->is_type<ast::IdentifierNode>()) {
return identifier_callback_wrapper(callback, ast::cast_node_cptr<ast::IdentifierNode>(node)._name);
} else if (node->is_type<ast::StringNode>()) {
return callback(ast::cast_node_cptr<ast::StringNode>(node)._name);
} else {
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 FAILURE;
}
return_t NodeTools::expect_bool(ast::NodeCPtr node, std::function<return_t(bool)> callback) {
return expect_identifier(node, [callback](std::string_view identifier) -> return_t {
if (identifier == "yes") {
return callback(true);
} else if (identifier == "no") {
return callback(false);
}
Logger::error("Invalid bool identifier text: ", identifier);
return FAILURE;
});
}
return_t NodeTools::expect_int(ast::NodeCPtr node, std::function<return_t(int64_t)> callback) {
return expect_identifier(node, [callback](std::string_view identifier) -> return_t {
int64_t val;
char const* const start = identifier.data();
char const* const end = start + identifier.size();
const std::from_chars_result result = std::from_chars(start, end, val);
if (result.ec == std::errc{} && result.ptr == end) {
return callback(val);
}
Logger::error("Invalid int identifier text: ", identifier);
return FAILURE;
});
}
return_t NodeTools::expect_uint(ast::NodeCPtr node, std::function<return_t(uint64_t)> callback) {
return expect_identifier(node, [callback](std::string_view identifier) -> return_t {
uint64_t val;
char const* identifier_end = identifier.data() + identifier.size();
const std::from_chars_result result = std::from_chars(identifier.data(), identifier_end, val);
if (result.ec == std::errc{} && result.ptr == identifier_end) {
return callback(val);
}
Logger::error("Invalid uint identifier text: ", identifier);
return FAILURE;
});
}
return_t NodeTools::expect_fixed_point(ast::NodeCPtr node, std::function<return_t(FP)> callback) {
return expect_identifier(node, [callback](std::string_view identifier) -> return_t {
bool successful = false;
FP val = FP::parse(identifier.data(), identifier.length(), &successful);
if (successful) {
return callback(val);
}
Logger::error("Invalid fixed point identifier text: ", identifier);
return FAILURE;
});
}
return_t NodeTools::expect_colour(ast::NodeCPtr node, std::function<return_t(colour_t)> callback) {
colour_t col = NULL_COLOUR;
uint32_t components = 0;
return_t ret = expect_list(node, std::bind(expect_fixed_point, std::placeholders::_1,
[&col, &components](FP val) -> return_t {
return_t ret = SUCCESS;
if (val < 0 || val > 255) {
Logger::error("Invalid colour component: ", val);
val = FP::_0();
ret = FAILURE;
}
if (val <= 1) val *= 255;
col = (col << 8) | val.to_int32_t();
components++;
return ret;
}), 3);
if (components < 3) col <<= 8 * (3 - components);
if (callback(col) != SUCCESS) ret = FAILURE;
return ret;
}
return_t NodeTools::expect_date(ast::NodeCPtr node, std::function<return_t(Date)> callback) {
return expect_identifier(node, [callback](std::string_view identifier) -> return_t {
bool successful = false;
Date date = Date::from_string(identifier, &successful);
if (successful) {
return callback(date);
}
Logger::error("Invalid date identifier text: ", identifier);
return FAILURE;
});
}
return_t NodeTools::expect_assign(ast::NodeCPtr node, std::function<return_t(std::string_view, ast::NodeCPtr)> callback) {
return expect_type<ast::AssignNode>(node, [callback](ast::AssignNode const& assign_node) -> return_t {
return callback(assign_node._name, assign_node._initializer.get());
});
}
return_t NodeTools::expect_list(ast::NodeCPtr node, std::function<return_t(ast::NodeCPtr)> callback, size_t length, bool file_node) {
const std::function<return_t(std::vector<ast::NodeUPtr> const&)> list_func = [length, callback](std::vector<ast::NodeUPtr> const& list) -> return_t {
return_t ret = SUCCESS;
size_t size = list.size();
if (length > 0 && size != length) {
Logger::error("List length ", size, " does not match expected length ", length);
ret = FAILURE;
if (length < size) size = length;
}
std::for_each(list.begin(), list.begin() + size, [callback, &ret](ast::NodeUPtr const& sub_node) {
if (callback(sub_node.get()) != SUCCESS) ret = FAILURE;
});
return ret;
};
if (!file_node) {
return expect_type<ast::ListNode>(node, [list_func](ast::ListNode const& list_node) -> return_t {
return list_func(list_node._statements);
});
} else {
return expect_type<ast::FileNode>(node, [list_func](ast::FileNode const& file_node) -> return_t {
return list_func(file_node._statements);
});
}
}
return_t NodeTools::expect_dictionary(ast::NodeCPtr node, std::function<return_t(const std::string_view, ast::NodeCPtr)> callback, bool file_node) {
return expect_list(node, std::bind(expect_assign, std::placeholders::_1, callback), 0, file_node);
}
return_t NodeTools::expect_dictionary_keys(ast::NodeCPtr node, dictionary_key_map_t const& keys, bool allow_other_keys, bool file_node) {
std::map<std::string, size_t, std::less<void>> key_count;
return_t ret = expect_dictionary(node, [keys, allow_other_keys, &key_count](const std::string_view key, ast::NodeCPtr value) -> return_t {
const dictionary_key_map_t::const_iterator it = keys.find(key);
if (it == keys.end()) {
if (allow_other_keys) return SUCCESS;
Logger::error("Invalid dictionary key: ", key);
return FAILURE;
}
const size_t count = ++key_count[it->first];
dictionary_entry_t const& entry = it->second;
if (!entry.can_repeat && count > 1) {
Logger::error("Invalid repeat of dictionary key: ", key);
return FAILURE;
}
return entry.callback(value);
}, file_node);
for (dictionary_key_map_t::value_type const& entry : keys) {
if (entry.second.must_appear && key_count.find(entry.first) == key_count.end()) {
Logger::error("Mandatory dictionary key not present: ", entry.first);
ret = FAILURE;
}
}
return ret;
}
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