53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#pragma once
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#include <memory>
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#include <stdexcept>
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#include <string>
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#include <type_traits>
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#include "cmd/args/arg_base.hpp"
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#include "ast/ast_component.hpp"
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#include "lexer.hpp"
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#include "util/stringliteral.hpp"
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namespace fsh {
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template <typename T>
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class Argument : public _Argument {
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public:
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static T& get(std::shared_ptr<_Argument> a) { return std::dynamic_pointer_cast<Argument<T> >(a)->gvalue(); }
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Argument() {}
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virtual void svalue(const std::string& val, const Lexer::TokenType& type) override;
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virtual T& gvalue() { return value; }
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bool gis_string_literal() { return is_string_literal; }
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protected:
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bool is_string_literal; // Currently no getter
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T value;
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};
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template <class T>
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void Argument<T>::svalue(const std::string& val, const Lexer::TokenType& type) {
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is_string_literal = type == Lexer::TokenType::STRING_LITERAL;
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if constexpr (std::is_same_v<T, StringLiteral>) {
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if(type != Lexer::TokenType::STRING_LITERAL) {
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throw std::invalid_argument("Incorrect type");
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}
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}
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if constexpr (!std::is_same_v<T, std::string> && !std::is_base_of_v<std::string, T>) {
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std::stringstream ss_val(val);
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if (!(ss_val >> value)) { throw std::invalid_argument("Incorrect type"); }
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} else {
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value = val;
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}
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}
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} |