private static RegistersCollection SolveCore(string input)
{
var lines = input.Split(Environment.NewLine.ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
var registers = new RegistersCollection();
var instructionParser = new InstructionParser(registers);
var instructions = lines.Select(instructionParser.Parse).ToList();
instructions.ForEach(i => i.Execute());
return(registers);
}
public InstructionFactory(RegistersCollection registers)
{
this.registers = registers;
}
public Instruction(RegistersCollection registers)
{
this.registers = registers ?? throw new ArgumentNullException(nameof(registers));
}
public InstructionParser(RegistersCollection registers)
{
this.registers = registers;
}