public void Gather(TisLangParser.ProgramContext program)
{
int ip = 0;
foreach (var expression in program.expression()) {
var label = expression.label();
var instruction = expression.instruction();
var eol = expression.EOL();
if (label != null) {
var name = label.SYMBOL().GetText().ToUpper();
Labels[name] = ip;
} else if (instruction != null) {
ip++;
} else if (eol != null) {
} else {
throw new Exception("Unknown expression type");
}
}
}
public void Gather(TisLangParser.ProgramContext program, Dictionary<string, int> labels)
{
foreach (var expression in program.expression()) {
var label = expression.label();
var instruction = expression.instruction();
var eol = expression.EOL();
if (label != null) {
} else if (instruction != null) {
var name = instruction.SYMBOL().GetText();
var instructionType = GetInstructionType(name);
var constructorArgumentCount = GetConstructorArgumentCount(instructionType);
var rawArguments = instruction.argumentList().argument();
if (rawArguments.Count != constructorArgumentCount) {
throw new Exception(string.Format("Instruction '{0}' takes exactly {1} arguments", name, constructorArgumentCount));
}
var arguments = rawArguments.Select(arg => GetArgument(arg, labels))
.ToArray();
var op = (IOperation)Activator.CreateInstance(instructionType, arguments);
Operations.Add(op);
} else if (eol != null) {
} else {
throw new Exception("Unknown expression type");
}
}
}
