private void ValidateIfLockedAssignment(Block block)
{
if (_samode)
{
if (!(((ExpressionStatement)block.Children.First()).Expression is AssignmentExpression))
{
throw new ArgumentException("Cannot enter locked assignment mode for a non-assignment expression.");
}
}
}
public FuncDef(String name, IEnumerable<String> args, Block body)
: base(AstNodeType.FuncDef, body.AsArray())
{
Name = name;
Args = args;
}
private void _moveDownButton_Click(object sender, EventArgs e)
{
var oldIndex = SelectedLineIndex;
var head = _root.Children.Take(SelectedLineIndex);
var me = _root.Children.ElementAt(SelectedLineIndex);
var swap = _root.Children.ElementAt(SelectedLineIndex + 1);
var tail = _root.Children.Skip(SelectedLineIndex + 2);
_root = new Block(head.Concat(swap.AsArray())
.Concat(me.AsArray()).Concat(tail).Cast<Statement>());
RebuildTopPanelContent();
SelectedLineIndex = oldIndex + 1;
}
private void _deleteButton_Click(object sender, EventArgs e)
{
if (!this.Confirm()) return;
var oldIndex = SelectedLineIndex;
var head = _root.Children.Take(SelectedLineIndex);
var tail = _root.Children.Skip(SelectedLineIndex + 1);
_root = (Block)_root.ReplaceMeWith(() => new Block(head.Concat(tail).Cast<Statement>()));
RebuildTopPanelContent();
SelectedLineIndex = oldIndex - 1;
}
private void _addButton_Click(object sender, EventArgs e)
{
var expression = new AssignmentExpression(new VariableExpression("?"), new LiteralExpression("[[?]]?"));
var oldIndex = SelectedLineIndex;
var head = _root.Children.Take(oldIndex + 1);
var @new = new ExpressionStatement(expression);
var tail = _root.Children.Skip(oldIndex + 1);
var newchi = head.Concat(@new.AsArray()).Concat(tail).Cast<Statement>();
_root = (Block)_root.ReplaceMeWith(() => new Block(newchi));
RebuildTopPanelContent();
SelectedLineIndex = oldIndex + 1;
}
public IfStatement(Expression test, Block then, Block @else)
: base(AstNodeType.IfStatement, new AstNode[]{test, then, @else})
{
}
private IEnumerable<ElfVmInstruction> CompileBlock(Block b)
{
yield return new Enter();
foreach (var stmt in b.Statements)
foreach (var evi in Compile(stmt))
yield return evi;
yield return new Leave();
}