public ForRangeNodeTests()
{
start = new IntNode(SourcePosition.NIL, 0);
end = new IntNode(SourcePosition.NIL, 100);
by = new IntNode(SourcePosition.NIL, 3);
code = new BlockNode(SourcePosition.NIL);
subject = new ForRangeNode(SourcePosition.NIL, new IdentNode(SourcePosition.NIL, "i"), start, end, by, code);
}
public void VisitForRange(ForRangeNode node)
{
UpdateLine(node);
PushScope();
asm.Declare(node.Iterator.Value, VariableFlags.NONE);
node.Start.Accept(this);
asm.MarkLocal(node.Iterator.Value);
asm.SetLocal(node.Iterator.Value);
var endValue = "__end_" + Guid.NewGuid().ToString("n");
asm.Declare(endValue, VariableFlags.FINAL);
node.End.Accept(this);
asm.MarkLocal(endValue);
asm.SetLocal(endValue);
var byValue = "__by_" + Guid.NewGuid().ToString("n");
asm.Declare(byValue, VariableFlags.FINAL);
if (node.By != null)
{
node.By.Accept(this);
}
else
{
asm.PushConstant(NeoInt.ValueOf(1));
}
asm.MarkLocal(byValue);
asm.SetLocal(byValue);
var cmpValue = "__cmp_" + Guid.NewGuid().ToString("n");
asm.Declare(cmpValue, VariableFlags.NONE);
asm.MarkLocal(cmpValue);
asm.PushConstant(NeoInt.ValueOf(1));
asm.SetLocal(cmpValue);
var skip = asm.NewLabel();
asm.GetLocal(byValue);
asm.PushConstant(NeoInt.ValueOf(0));
asm.Lte();
asm.Branch(skip);
asm.PushConstant(NeoInt.ValueOf(-1));
asm.SetLocal(cmpValue);
asm.MarkLabel(skip);
var start = asm.NewLabel();
asm.MarkLabel(start);
asm.GetLocal(node.Iterator.Value);
asm.GetLocal(endValue);
asm.Cmp();
asm.GetLocal(cmpValue);
asm.Eq();
var end = asm.NewLabel();
var codeEnd = asm.NewLabel();
PushLoop(start, end, codeEnd);
asm.Branch(end);
PreLoopCode(node.Code);
node.Code.Accept(this);
asm.MarkLabel(codeEnd);
PostLoopCode(node.Code);
asm.GetLocal(node.Iterator.Value);
asm.GetLocal(byValue);
asm.Add();
asm.SetLocal(node.Iterator.Value);
asm.Jump(start);
asm.MarkLabel(end);
PopLoop();
PopScope();
}
public void VisitForRange(ForRangeNode node)
{
VisitForRangeHandler(node);
}
