如何使用重构浏览器添加实例变量？

Question

我想使用重构浏览器以编程方式将实例变量添加到现有类：

| theClass className |
className := #MyClass.
theClass := (RBClass existingNamed: className)
                model: (RBNamespace new classNamed: className; yourself);
                yourself.
theClass addInstanceVariable: 'testIVar'

但是没有使用新的实例变量修改类，我缺少什么？

Answer 1

您忘了执行重构。试试这个

| model className theClass iVarName |
className := #MyClass.
iVarName := 'testIVar'.
model := RBNamespace new classNamed: className; yourself.
theClass := (RBClass existingNamed: className)
                model: model;
                yourself.
(RBAddInstanceVariableRefactoring 
        model: model
        variable: iVarName
        class: theClass) execute.

你可能想为你的新实例变量添加authomatic accession方法（getter和setter）

(RBCreateAccessorsForVariableRefactoring 
        model: model
        variable: iVarName
        class: theClass 
        classVariable: false) execute