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  1. #1
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    Default Ext.Loader stalls on circular referenced components

    Ext.Loader stalls on circular referenced components


    I am using the requires config to dynamically load my components on demand. I ran into one problem where the loader would stall if the component chain has a circular reference.

    For example (pseudo-code):
    Code:
    Ext.define('Grid_A', {
      extend:'Grid'
      requires: ['Window_A']
      initComponent: function(){
        this.callParent(args);
        Ext.create('Window_A').show();
      }
    });
    
    Ext.define('Window_A', {
      extend:'Window'
      requires: ['Grid_A']
      constructor: function(){
        Ext.apply(this,{ items: [ 'Grid_A' ] });
        this.callParent(args);
      }
    });
    
    Ext.define('Panel_A', {
      extend:'Panel'
      requires: ['Grid_A']
      constructor: function(){
        Ext.apply(this,{ items: [ 'Grid_A' ] });
        this.callParent(args);
      }
    });
    This is not a very common occurrence but in the effort of component re-use, it is possible. If I change the Window_A requires to uses, then it works.

  2. #2
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    Default


    Use ext-dev.js during development. Ext.Loader has built-in deadlock detection so it will throw a very useful message and let you know the full deadlock path.
    Sencha Touch Lead Architect

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