private object Evaluate(IExpression expression)
{
return(expression switch
{
UnaryExpression unary => Evaluate(unary),
BinaryExpression binary => Evaluate(binary),
Variable variable => Evaluate(variable),
Number number => Evaluate(number),
Boolean boolean => Evaluate(boolean),
_ => null
});
private FormulaType GetType(IExpression expression)
{
return(expression switch
{
Boolean b => FormulaType.Bool,
Number n => FormulaType.Number,
UnaryExpression u => GetType(u.Expression),
BinaryExpression b => GetBinaryOperationType(b),
Variable v => VariableTypes.ContainsKey(v.Name) ? VariableTypes[v.Name] : FormulaType.Error,
_ => FormulaType.Error
});
private object Evaluate(Boolean boolean)
{
return(boolean.Value);
}