IEnumerable <IToken> Assemble(ITokenGroup group)
{
if (_numberAssembler.CanAssemble(group))
{
return(_numberAssembler.Assemble(group.Tokens));
}
if (_parenthesisAssembler.CanAssemble(group))
{
return(_parenthesisAssembler.Assemble(group.Tokens));
}
if (_operationAssembler.CanAssemble(group))
{
return(_operationAssembler.Assemble(group.Tokens));
}
var exceptionMessage = $"Unknown rule for assembling token group.";
throw new GroupAssemblingException(exceptionMessage, group);
}
public bool CanAssemble(ITokenGroup group) => group.Tokens.Count == 1 && group.TokenTypes[0] == typeof(OperationToken);
public bool CanAssemble(ITokenGroup group) => group.TokenTypes.Contains(typeof(ParenthesisToken));
public bool CanAssemble(ITokenGroup group) => group.TokenTypes.Length == 1 && group.TokenTypes[0] == typeof(DigitToken);
public GroupAssemblingException(string message, ITokenGroup failureGroup)
: base(message)
{
AssemblingFailedFor = failureGroup;
}
