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147 рядки
4.2 KiB
147 рядки
4.2 KiB
#pragma once
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#include "UserScript.h"
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#include "UserScriptWizardry.h"
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#include <concepts>
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#include <span>
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#include <ranges>
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/*template<size_t arg_number>
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struct verifier_base {
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static constexpr size_t argument_id = arg_number;
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};*/
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namespace details {
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template<size_t argument_counter, typename T>
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struct TypeVerifier {
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static constexpr size_t argument_id = argument_counter;
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bool verify(scripting::UserScript* self, std::vector<scripting::argument>& args) {
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if(argument_id >= args.size()) return false;
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if(args.size() -1 -argument_id < 0) return false;
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auto& argument = args[args.size() -1 -argument_id];
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std::optional<std::reference_wrapper<scripting::script_value>> v = std::visit(
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wizardry::overloaded{
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[&](scripting::script_variable& v) -> std::optional<std::reference_wrapper<scripting::script_value>> {return self->getValue(v.name);},
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[&](scripting::script_value& v) -> std::optional<std::reference_wrapper<scripting::script_value>> {return v;},
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},
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argument
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);
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if(not v) return false;
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return std::visit(wizardry::overloaded{
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[](T& ) {return true;},
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[](auto&) {return false;}
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}, v.value().get());
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}
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};
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template<size_t argument_counter>
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struct VariableVerifier {
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static constexpr size_t argument_id = argument_counter;
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bool verify(scripting::UserScript* self, std::vector<scripting::argument>& args) {
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if(argument_id >= args.size()) return false;
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if(args.size() -1 -argument_id < 0) return false;
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auto& argument = args[args.size() -1 -argument_id];
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return std::visit(
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wizardry::overloaded{
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[&](scripting::script_variable& v) -> bool {return self->getValue(v.name).has_value();},
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[&](scripting::script_value& v) {return false;},
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},
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argument
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);
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}
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};
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template<size_t skip = 0>
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struct NoArrays {
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bool verify(scripting::UserScript* self, std::vector<scripting::argument> args) {
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for(auto& elem : std::ranges::reverse_view(args) | std::ranges::views::drop(skip)) {
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std::optional<std::reference_wrapper<scripting::script_value>> v;
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std::visit(
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wizardry::overloaded{
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[&](scripting::script_variable& n) {v = self->getValue(n.name);},
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[&](scripting::script_value& n) {v = n;},
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},
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elem
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);
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if(not v) return false;
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if(std::visit(wizardry::overloaded{
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[](scripting::array&) {return true;},
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[](auto&) {return false;}
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}, v.value().get())) {
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return false;
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}
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}
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return true;
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}
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};
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template<size_t sz = 0>
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struct SizeEquals {
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bool verify(scripting::UserScript*, std::vector<scripting::argument> args) {
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return args.size() == sz;
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}
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};
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template<size_t sz = 0>
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struct SizeAtLeast {
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bool verify(scripting::UserScript*, std::vector<scripting::argument> args) {
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return args.size() >= sz;
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}
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};
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template<size_t argument_counter>
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struct OctetArrayVerifier {
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static constexpr size_t argument_id = argument_counter;
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bool verify(scripting::UserScript* self, std::vector<scripting::argument>& args) {
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if(argument_id >= args.size()) return false;
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if(args.size() -1 -argument_id < 0) return false;
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auto& argument = args[args.size() -1 -argument_id];
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std::optional<std::reference_wrapper<scripting::script_value>> v;
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std::visit(
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wizardry::overloaded{
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[&](scripting::script_variable& elem) {v = self->getValue(elem.name);},
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[&](scripting::script_value& elem) {v = elem;}
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},
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argument
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);
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if(not v) return false;
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return std::visit(
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wizardry::overloaded{
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[](scripting::array& ary) -> bool {
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for(auto& elem : ary.value) {
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if(std::holds_alternative<int32_t>(elem)) {
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if(auto& byte = std::get<int32_t>(elem); byte < 0 || byte > 255) {
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return false;
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}
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} else {
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return false;
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}
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}
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return true;
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},
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[] (auto&) -> bool {return false;}
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},
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v.value().get()
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);
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}
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};
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}
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template<typename... verifiers>
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struct Verify;
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template<typename n, typename... verifiers>
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struct Verify<n, verifiers...> {
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bool verify(scripting::UserScript* self, std::vector<scripting::argument>& args) {
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return n{}.verify(self, args) && Verify<verifiers...>{}.verify(self, args);
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}
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};
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template<>
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struct Verify<> {
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bool verify(scripting::UserScript*, const std::vector<scripting::argument>&) {
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return true;
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}
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};
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