public void GenerateCodeForInstruction(CodeLine line)
{
if (InstructionHelper.IsMoveInstruction(line.instruction))
{
var command = new MoveCommand(InstructionHelper.GetInstructionDirection(line.instruction), currentCodeLineNumber + 1);
commandToCodeLineMapping.Add(command, line);
allCommands.Add(command);
}
if (InstructionHelper.IsPutInstruction(line.instruction))
{
var command = new PutCommand(currentCodeLineNumber + 1);
commandToCodeLineMapping.Add(command, line);
allCommands.Add(command);
}
if (InstructionHelper.IsPickInstruction(line.instruction))
{
var command = new PickCommand(currentCodeLineNumber + 1);
commandToCodeLineMapping.Add(command, line);
allCommands.Add(command);
}
if (InstructionHelper.IsJumpInstruction(line.instruction))
{
ICommand command;
if (InstructionHelper.IsJumpInstructionLabel(line.instruction))
{
command = new JumpCommand(currentCodeLineNumber + 1);
allCommands.Add(command);
}
else
{
//this is being set in code later - otherwise forward jumps will not work - see RepairJumps for reference.
command = new JumpCommand(currentCodeLineNumber + 1);
allCommands.Add(command);
}
commandToCodeLineMapping.Add(command, line);
}
if (InstructionHelper.IsIfInstruction(line.instruction))
{
int trueLineNumber = currentCodeLineNumber + 1;
int elseLineNumber = currentCodeLineNumber + line.TotalChildrenCount + 1;
var command = new IfCommand(trueLineNumber, elseLineNumber, GetConditions(line), GetLogicalOperators(line));
allCommands.Add(command);
commandToCodeLineMapping.Add(command, line);
currentCodeLineNumber++;
foreach (var child in line.children)
{
GenerateCodeForInstruction(child);
}
command.NextCommandId = currentCodeLineNumber;
currentCodeLineNumber--; //this may seem wrong but actually it is not
}
if (InstructionHelper.IsWhileInstruction(line.instruction))
{
int trueLineNumber = currentCodeLineNumber + 1;
int falseLineNumber = currentCodeLineNumber + line.TotalChildrenCount + 1;
var command = new WhileCommand(trueLineNumber, falseLineNumber, GetConditions(line), GetLogicalOperators(line));
allCommands.Add(command);
commandToCodeLineMapping.Add(command, line);
currentCodeLineNumber++;
foreach (var child in line.children)
{
GenerateCodeForInstruction(child);
}
var loopJumpCommand = new JumpCommand(trueLineNumber - 1);
commandToCodeLineMapping.Add(loopJumpCommand, null);
command.NextCommandId = currentCodeLineNumber + 1;
allCommands.Add(loopJumpCommand);
}
if (InstructionHelper.IsRepeatInstruction(line.instruction))
{
int trueLineNumber = currentCodeLineNumber + 1;
int falseLineNumber = currentCodeLineNumber + line.TotalChildrenCount + 1;
var command = new RepeatCommand(trueLineNumber, falseLineNumber, InstructionHelper.GetRepeatTimes(line.instruction));
allCommands.Add(command);
commandToCodeLineMapping.Add(command, line);
currentCodeLineNumber++;
foreach (var child in line.children)
{
GenerateCodeForInstruction(child);
}
var loopJumpCommand = new JumpCommand(trueLineNumber - 1);
commandToCodeLineMapping.Add(loopJumpCommand, null);
command.NextCommandId = currentCodeLineNumber;
allCommands.Add(loopJumpCommand);
}
currentCodeLineNumber++;
}
