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    • js.prompto.value.TupleValue.js Maven / Gradle / Ivy

    var BaseValueList = require("./BaseValueList").BaseValueList;
var TupleType = null;
var SetValue = null;

exports.resolve = function() {
    TupleType = require("../type/TupleType").TupleType;
    SetValue = require("./SetValue").SetValue;
};

function TupleValue(items, item, mutable) {
	BaseValueList.call(this, TupleType.instance, items, item, mutable);
	return this;
}

TupleValue.prototype = Object.create(BaseValueList.prototype);
TupleValue.prototype.constructor = TupleValue;

TupleValue.prototype.toString = function() {
	return "(" + this.items.join(", ") + ")";
};

TupleValue.prototype.toDialect = function(writer) {
    writer.append('(');
    BaseValueList.prototype.toDialect.call(this, writer);
    writer.append(')');
};

/*

@Override
protected TupleValue newInstance(List items) {
	return new TupleValue(items);
}

*/

TupleValue.prototype.Add = function(context, value) {
	if (value instanceof BaseValueList) {
        var items = this.items.concat(value.items);
        return new TupleValue(items);
    } else if(value instanceof SetValue) {
        var items = this.items.concat([]);
        for(var name in value.items) {
            items.push(value.items[name]);
        }
        return new TupleValue(items);
    } else {
		throw new SyntaxError("Illegal: Tuple + " + typeof(value));
	}
};

TupleValue.prototype.filter = function(context, itemId, filter) {
    var result = new TupleValue();
    var iter = this.getIterator(context);
    while(iter.hasNext()) {
        var o = iter.next();
        context.setValue(itemId, o);
        var test = filter.interpret(context);
        if(!(test instanceof Bool)) {
            throw new InternalError("Illegal test result: " + test);
        }
        if(test.value) {
            result.add(o);
        }
    }
    return result;
}

exports.TupleValue = TupleValue;    
    
    
    

    




    
    
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