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#include "math_parser_diag_value.h"
#include <optional>
#include <stdexcept>
#include <string>
#include <utility>
#include <variant>
#include "cata_utility.h"
#include "debug.h"
#include "math_parser.h"
#include "string_formatter.h"
namespace
{
template<typename T>
constexpr std::string_view _str_type_of( T /* t */ )
{
if constexpr( std::is_same_v<T, double> ) {
return "double";
} else if constexpr( std::is_same_v<T, std::string> ) {
return "string";
} else if constexpr( std::is_same_v<T, var_info> ) {
return "variable";
} else if constexpr( std::is_same_v<T, math_exp> ) {
return "sub-expression";
} else if constexpr( std::is_same_v<T, diag_array> ) {
return "array";
}
return "cookies";
}
template<class C, class R = C, bool at_runtime = false>
constexpr R _diag_value_at_parse_time( diag_value::impl_t const &data )
{
return std::visit( overloaded{
[]( C const & v ) -> R
{
return v;
},
[]( auto const & v ) -> R
{
if constexpr( at_runtime )
{
debugmsg( "Expected %s, got %s", _str_type_of( C{} ), _str_type_of( v ) );
static R null_R{};
return null_R;
} else
{
throw std::invalid_argument( string_format( "Expected %s, got %s", _str_type_of( C{} ),
_str_type_of( v ) ) );
}
},
},
data );
}
} // namespace
double diag_value::dbl() const
{
return _diag_value_at_parse_time<double>( data );
}
double diag_value::dbl( dialogue const &d ) const
{
return std::visit( overloaded{
[]( double v )
{
return v;
},
[]( std::string const & v )
{
if( std::optional<double> ret = svtod( v ); ret ) {
return *ret;
}
debugmsg( R"(Could not convert string "%s" to double)", v );
return 0.0;
},
[&d]( var_info const & v )
{
std::string const val = read_var_value( v, d );
if( std::optional<double> ret = svtod( val ); ret ) {
return *ret;
}
debugmsg( R"(Could not convert variable "%s" with value "%s" to double)", v.name, val );
return 0.0;
},
[&d]( math_exp const & v )
{
// FIXME: maybe re-constify eval paths?
return v.eval( const_cast<dialogue &>( d ) );
},
[]( diag_array const & )
{
debugmsg( R"(Cannot directly convert array to doubles)" );
return 0.0;
},
},
data );
}
std::string_view diag_value::str() const
{
return _diag_value_at_parse_time<std::string, std::string_view>( data );
}
std::string diag_value::str( dialogue const &d ) const
{
return std::visit( overloaded{
[]( double v )
{
// NOLINTNEXTLINE(cata-translate-string-literal)
return string_format( "%g", v );
},
[]( std::string const & v )
{
return v;
},
[&d]( var_info const & v )
{
return read_var_value( v, d );
},
[&d]( math_exp const & v )
{
// NOLINTNEXTLINE(cata-translate-string-literal)
return string_format( "%g", v.eval( const_cast<dialogue &>( d ) ) );
},
[]( diag_array const & )
{
debugmsg( R"(Cannot directly convert array to strings)" );
return std::string{};
},
},
data );
}
var_info diag_value::var() const
{
return _diag_value_at_parse_time<var_info>( data );
}
bool diag_value::is_array() const
{
return std::holds_alternative<diag_array>( data );
}
diag_array const &diag_value::array() const
{
return _diag_value_at_parse_time<diag_array, diag_array const &>( data );
}
diag_array const &diag_value::array( dialogue const &/* d */ ) const
{
return _diag_value_at_parse_time<diag_array, diag_array const &, true>( data );
}
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