Question

我目前正在开发一个Eclipse Plug-In，它可以让我使用手势触发重构。我一直试图在Eclipse中以编程方式触发“提取方法”一段时间，但我不断遇到问题。我在搜索解决方案时发现的大多数建议都需要使用内部类。

我现在卡在这个代码模板上。问题是，我找不到可以提供我想要提取的代码作为ISelection或类似内容的地方。

RefactoringContribution rc = RefactoringCore.getRefactoringContribution(IJavaRefactorings.EXTRACT_METHOD);
ExtractMethodDescriptor rd = (ExtractMethodDescriptor) rc.createDescriptor();

rd.setProject(staticHelper.getIProject().getName());
//There should be some more rd.setXXXXX() here.

RefactoringStatus rs = new RefactoringStatus();

try {
    Refactoring r = rd.createRefactoring(rs);
    IProgressMonitor pm = new NullProgressMonitor();

    r.checkInitialConditions(pm);
    r.checkFinalConditions(pm);

    Change change = r.createChange(pm);
    change.perform(pm);
}

catch(Exception e) {e.printStackTrace();}
}

以下方法有效，但它使用内部API：

@SuppressWarnings("restriction")    //Works but is INTERNAL USE ONLY
public static void extractMethodRefactoring() {
    ITextSelection selection = staticHelper.getITextSelection();
    int start = selection.getOffset();
    int length = selection.getLength();


    //The following line is part of the internal API
    ExtractMethodRefactoring tempR = new ExtractMethodRefactoring(staticHelper.getICompilationUnit(), start, length);

    try {
        NullProgressMonitor pm = new NullProgressMonitor();
        tempR.checkAllConditions(pm);
        Change change = tempR.createChange(pm);
        change.perform(pm);
    } catch (Exception e) {e.printStackTrace();}

}

这又需要内部类ExtractMethodRefactoring，不应该使用它。

在Eclipse Refactoring / LTK API中触发'extract method'

0 个答案: