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125 lines
3.1 KiB
C++
125 lines
3.1 KiB
C++
//
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// Struct.cpp
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// Clock Signal
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//
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// Created by Thomas Harte on 13/03/2020.
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// Copyright © 2020 Thomas Harte. All rights reserved.
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//
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#include "Struct.hpp"
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#include <algorithm>
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// MARK: - Setters
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template <> bool Reflection::set(Struct &target, const std::string &name, int value) {
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const auto target_type = target.type_of(name);
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if(!target_type) return false;
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// No need to convert an int or a registered enum.
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if(*target_type == typeid(int) || !Reflection::Enum::name(*target_type).empty()) {
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target.set(name, &value);
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return true;
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}
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// Promote to an int64_t.
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if(*target_type == typeid(int64_t)) {
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const auto int64 = int64_t(value);
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target.set(name, &int64);
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return true;
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}
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return false;
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}
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template <> bool Reflection::set(Struct &target, const std::string &name, const std::string &value) {
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const auto target_type = target.type_of(name);
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if(!target_type) return false;
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if(Reflection::Enum::name(*target_type).empty()) {
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return false;
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}
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const int enum_value = Reflection::Enum::from_string(*target_type, value);
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if(enum_value < 0) {
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return false;
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}
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target.set(name, &enum_value);
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return true;
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}
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template <> bool Reflection::set(Struct &target, const std::string &name, const char *value) {
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const std::string string(value);
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return set<const std::string &>(target, name, string);
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}
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template <> bool Reflection::set(Struct &target, const std::string &name, bool value) {
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const auto target_type = target.type_of(name);
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if(!target_type) return false;
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if(*target_type == typeid(bool)) {
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target.set(name, &value);;
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}
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return false;
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}
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// MARK: - Fuzzy setter
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bool Reflection::fuzzy_set(Struct &target, const std::string &name, const std::string &value) {
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const auto target_type = target.type_of(name);
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if(!target_type) return false;
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// If the target is a registered enum, ttry to convert the value. Failing that,
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// try to match without case sensitivity.
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if(Reflection::Enum::size(*target_type)) {
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const int from_string = Reflection::Enum::from_string(*target_type, value);
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if(from_string >= 0) {
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target.set(name, &from_string);
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return true;
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}
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const auto all_values = Reflection::Enum::all_values(*target_type);
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const auto value_location = std::find_if(all_values.begin(), all_values.end(),
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[&value] (const auto &entry) {
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if(value.size() != entry.size()) return false;
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const char *v = value.c_str();
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const char *e = entry.c_str();
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while(*v) {
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if(tolower(*v) != tolower(*e)) return false;
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++v;
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++e;
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}
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return true;
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});
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if(value_location != all_values.end()) {
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const int offset = int(value_location - all_values.begin());
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target.set(name, &offset);
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return true;
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}
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return false;
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}
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return false;
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}
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// MARK: - Getters
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template <typename Type> bool Reflection::get(Struct &target, const std::string &name, Type &value) {
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return false;
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}
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template <> bool Reflection::get(Struct &target, const std::string &name, bool &value) {
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const auto target_type = target.type_of(name);
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if(!target_type) return false;
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if(*target_type == typeid(bool)) {
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value = *reinterpret_cast<const bool *>(target.get(name));
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return true;
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}
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return false;
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}
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