'use strict';

pbc.assignD.get('Tuple')['check_assign'] = function (py2block, node, targets, value) {
    if (value._astname === "Tuple")
        return true;
    return false;
}

pbc.assignD.get('Tuple')['create_block'] = function (py2block, node, targets, value) {
    return block("tuple_create_with", node.lineno, {
            'VAR': py2block.Name_str(targets[0])
        },
        py2block.convertElements("ADD", value.elts), {
            "inline": elts.length < 4 ? "false" : "true",
        }, {
            "@items": value.elts.length
        });
}

//mytup[0]在python_to_blockly.py中实现
//len在text里实现

//max/min在math里已实现

//list(mytuple), set(mytup)在lists.js中实现

pbc.globalFunctionD['tuple'] = function(py2block, func, args, keywords, starargs, kwargs, node){
    if (args.length > 1) {
        throw new Error("Incorrect number of arguments");
    }
    if (args.length ==0){
        return block("tuple_create_with_noreturn", node.lineno, {},{}
            , {
                "inline": "true",
            }, {
                "@items": 0
            });
    }
    if (args.length ==1){
        var numblock = py2block.convert(args[0]);
    return block("tuple_totuple", func.lineno, {}, {
            'VAR': numblock,
        }, {
            "inline": "false"
        });
    }
}