diamond.views.viewgenerator source code

1 /**
2 * Copyright © DiamondMVC 2019
3 * License: MIT (https://github.com/DiamondMVC/Diamond/blob/master/LICENSE)
4 * Author: Jacob Jensen (bausshf)
5 */
6 module diamond.views.viewgenerator;
7 
8 import diamond.core.apptype;
9 
10 static if (isWebServer || !isWeb)
11 {
12   /// Mixin template for the view generator.
13   mixin template GenerateViews()
14   {
15     import diamond.core.webconfig;
16     import diamond.views.viewparser;
17 
18     struct ViewResult
19     {
20       string name;
21       string source;
22     }
23 
24     /**
25     * Generates the strings of the view classes to use with mixin.
26     * Returns:
27     *   An array consisting of the generated classes of the views.
28     *   The first element of the array is the routable data.
29     */
30     private ViewResult[] generateViews()
31     {
32       ViewResult[] viewGenerations = [];
33 
34       string routableViewsMixin = "private static __gshared string[string] _routableViews;
35       @property string[string] routableViews()
36       {
37         if (_routableViews) return _routableViews;
38 ";
39 
40       mixin LoadViewData;
41 
42       foreach (viewName,viewContent; getViewData)
43       {
44         import diamond.templates.parser : parseTemplate;
45 
46         auto parts = parseTemplate(viewContent);
47 
48         string route;
49         viewGenerations ~= ViewResult(viewName, parseViewParts(parts, viewName, route));
50 
51         if (route && route.length)
52         {
53           import std..string : format;
54           routableViewsMixin ~= "_routableViews[\"%s\"] = \"%s\";".format(route, viewName);
55         }
56       }
57 
58       routableViewsMixin ~= "return _routableViews;
59       }";
60 
61       return [ViewResult("__routes", routableViewsMixin)] ~ viewGenerations;
62     }
63 
64     /// The result of the generated views.
65     enum generateViewsResult = generateViews();
66   }
67 }