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Creating a Type variable that refers to arguments[i]. Including parentheses when calling the constructor. r=elemoine (closes #2791)

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git-svn-id: http://svn.openlayers.org/trunk/openlayers@10642 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2010-08-20 15:50:46 +00:00
parent 0d6658f52d
commit 9d4e91e717
1 changed files with 10 additions and 9 deletions
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19
lib/OpenLayers/BaseTypes/Class.js
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@@ -35,30 +35,31 @@ OpenLayers.Class = function() {
}
};
var extended = {};
var parent, initialize;
var parent, initialize, Type;
for(var i=0, len=arguments.length; i<len; ++i) {
if(typeof arguments[i] == "function") {
Type = arguments[i];
if(typeof Type == "function") {
// make the class passed as the first argument the superclass
if(i == 0 && len > 1) {
initialize = arguments[i].prototype.initialize;
initialize = Type.prototype.initialize;
// replace the initialize method with an empty function,
// because we do not want to create a real instance here
arguments[i].prototype.initialize = function() {};
Type.prototype.initialize = function() {};
// the line below makes sure that the new class has a
// superclass
extended = new arguments[i];
extended = new Type();
// restore the original initialize method
if(initialize === undefined) {
delete arguments[i].prototype.initialize;
delete Type.prototype.initialize;
} else {
arguments[i].prototype.initialize = initialize;
Type.prototype.initialize = initialize;
}
}
// get the prototype of the superclass
parent = arguments[i].prototype;
parent = Type.prototype;
} else {
// in this case we're extending with the prototype
parent = arguments[i];
parent = Type;
}
OpenLayers.Util.extend(extended, parent);
}