/// <summary>
/// Adds a Rethrow clause into this block. This should only be used if the
/// actual block is a catch or is inside one.
/// </summary>
public TThis Rethrow()
{
_CheckModifiable();
var rethrowExpression = Expression.Rethrow();
var statement = new _Expression(rethrowExpression);
_statements.Add(statement);
return(_this);
}
/// <summary>
/// Adds a Throw clause into this block.
/// </summary>
public TThis Throw(Expression <Func <Exception> > expression)
{
if (expression == null)
{
throw new ArgumentNullException("expression");
}
_CheckModifiable();
var throwExpression = Expression.Throw(expression.Body);
var statement = new _Expression(throwExpression);
_statements.Add(statement);
return(_this);
}
/// <summary>
/// Adds a Break statement to this block, making it exit the actual loop.
/// This should only be used in loop blocks (Loop, While and For) or in sub-blocks of such blocks.
/// </summary>
public TThis Break()
{
_CheckModifiable();
_IBlockBuilder instance = this;
while (instance != null)
{
_ILoop loop = instance as _ILoop;
if (loop != null)
{
var gotoExpression = Expression.Goto(loop.BreakTarget);
var statement = new _Expression(gotoExpression);
_statements.Add(statement);
return(_this);
}
instance = instance.Parent as _IBlockBuilder;
}
throw new InvalidOperationException("You are not inside a breakable block.");
}
public Item(Item item)
{
context = item.context;
value = item.value;
}
public Item(ItemType context, _Expression value)
{
this.context = context;
this.value = value;
}
public Item()
{
context = ItemType.EMPTY;
value = null;
}
public _ParseResult(int index, _Expression value)
{
Index = index;
Value = value;
}