public Operand ForEach(Type elementType, Operand expression)
{
ForeachBlock fb = new ForeachBlock(elementType, expression);
Begin(fb);
return(fb.Element);
}
public ContextualOperand ForEach(Type elementType, Operand expression)
{
ForeachBlock fb = new ForeachBlock(elementType, expression, TypeMapper);
Begin(fb);
return(new ContextualOperand(fb.Element, TypeMapper));
}
public ForeachBlock Build()
{
var foreachBlock = new ForeachBlock(_block);
/*
* resolve header
*
*/
throwErrorIfHasNoNextOrNext("incompleted foreach block;");
throwErrorIfOperatorTypeNotMatch(OperatorType.LeftParenthesis);//(
throwErrorIfHasNoNextOrNext("incompleted foreach block;");
throwErrorIfOperatorTypeNotMatch(OperatorType.Declare);//(var
throwErrorIfHasNoNextOrNext("incompleted foreach block;");
throwIf(x => !x.IsIdentifier());//(var item
var name = _reader.Current().Value;
throwErrorIfHasNoNextOrNext("incompleted foreach block;");
throwIf(x => x.Value != Keywords.IN);//(var item in
foreachBlock.DeclareExpression = new DeclareExpression(_block)
{
Root = new DeclareOperator(_block)
};
foreachBlock.DeclareExpression.Root.Operands.Add(new OperandNode(new JString(name)));//(var item in
foreachBlock.GetCollectionExpression = new Expression(_block);
foreachBlock.GetCollectionExpression.Root = new AstNodeBuilder(_reader, _block, _interceptChars).Build();
/*
* Resolve body
*
*/
if (!_reader.HasNext())
{
throwErrorIfHasNoNextOrNext("incompleted foreach block;");
}
foreachBlock.Body = new OrderedBlockBuilder(_reader, "foreach", foreachBlock).Build();
return(foreachBlock);
}
public Operand ForEach(Type elementType, Operand expression)
{
ForeachBlock fb = new ForeachBlock(elementType, expression);
Begin(fb);
return fb.Element;
}
