public void Accept(ForeachNode node)
{
}
public void Accept(ForeachNode node)
{
var startLabel = nextLabel();
var endLabel = nextLabel();
method.ContinueLabels.Push(startLabel);
method.BreakLabels.Push(endLabel);
int tmp, variable;
if (!table.ContainsSymbol((++labelIndex).ToString()))
table.AddSymbol(labelIndex.ToString());
tmp = table.GetSymbol(labelIndex.ToString());
if (table.ContainsSymbol(node.Variable))
variable = table.GetSymbol(node.Variable);
else
variable = table.AddSymbol(node.Variable);
node.Target.Visit(this);
method.Emit(node.SourceLocation, InstructionType.Iter);
method.Emit(node.SourceLocation, InstructionType.StoreLocal, tmp);
method.EmitLabel(node.SourceLocation, startLabel);
method.Emit(node.SourceLocation, InstructionType.LoadLocal, tmp);
method.Emit(node.SourceLocation, InstructionType.IterableFull);
method.Emit(node.SourceLocation, InstructionType.JumpIfTrue, endLabel);
method.Emit(node.SourceLocation, InstructionType.LoadLocal, tmp);
method.Emit(node.SourceLocation, InstructionType.IterableNext);
method.Emit(node.SourceLocation, InstructionType.StoreLocal, variable);
node.Body.Visit(this);
method.Emit(node.SourceLocation, InstructionType.Jump, startLabel);
method.EmitLabel(node.SourceLocation, endLabel);
}
