@titanium/turbo/Alloy/commands/compile/parsers/Ti.UI.iPhone.NavigationGroup.js

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var styler = require('../styler'),
	U = require('../../../utils'),
	CU = require('../compilerUtils'),
	tiapp = require('../../../tiapp'),
	logger = require('../../../logger');

var DEPRECATED_VERSION = '3.1.3';

exports.parse = function(node, state) {
	return require('./base').parse(node, state, parse);
};

function parse(node, state, args) {
	if (tiapp.version.gte(tiapp.getSdkVersion(), DEPRECATED_VERSION)) {
		logger.warn([
			'Ti.UI.iPhone.NavigationGroup (line ' + node.lineNumber + ') is deprecated as of Titanium ' + DEPRECATED_VERSION,
			'Use Ti.UI.NavigationWindow instead'
		]);
	}

	var children = U.XML.getElementsFromNodes(node.childNodes),
		err = ['NavigationGroup must have only one child element, which must be a Window'],
		code = '';

	// NavigationGroup must have 1 window as a child
	if (children.length !== 1) {
		U.die(err);
	}

	var child = children[0],
		childArgs = CU.getParserArgs(child),
		theNode = CU.validateNodeName(child, 'Ti.UI.Window'),
		windowSymbol;

	// generate the code for the Window first
	if (theNode) {
		const generated_code = CU.generateNodeExtended(child, state, {
			parent: {},
			post: function(node, state, args) {
				windowSymbol = state.parent.symbol;
			}
		});

		if(typeof generated_code === 'object'){
			code += generated_code.content;
		} else {
			code += generated_code;
		}
		
	} else {
		err.unshift('Invalid NavigationGroup child "' + childArgs.fullname + '"');
		U.die(err);
	}

	// create navgroup with window
	state.extraStyle = styler.createVariableStyle('window', windowSymbol);
	code += require('./default').parse(node, state).code;

	// Update the parsing state
	return {
		parent: {},
		styles: state.styles,
		code: code
	};
}