Eclipse JDT：以编程方式调用“正确的缩进” [英] Eclipse JDT: Call 'correct indentation' programmatically?

问题描述

我正在使用一个Eclipse插件来修改用户项目中的Java代码。

这个插件的结果基本上是将Java注释添加到某些方法中，所以

  void foo（）{...} 
  

成为

  @MyAnnotation 
 void foo（）{...} 
  

除了它不太像这样;新插入的注释的缩进是wack（具体来说，新注释一直到该行的左侧）。我想对文件进行所有更改，然后以编程方式调用正确缩进。

有谁知道如何做？我找不到答案在这里或在JDT论坛，所有看起来相关的类（IndentAction，JavaIndenter）都是内部的包，我不应该使用...

谢谢！

解决方案

我想我可能已经想出了我想要的解决方案。猜猜我应该花更多的时间来搜索...但是为了将来参考，这里是我做的！好的东西在ToolFactory ...

  import org.eclipse.jdt.core.ToolFactory; 
 import org.eclipse.jdt.core.formatter.CodeFormatter; 
 import org.eclipse.jdt.core.ISourceRange; 
 import org.eclipse.text.edits.TextEdit; 
 import org.eclipse.jdt.core.ICompilationUnit; 
 
 ... 
 
 ICompilationUnit cu = ... 
 
 ... 
 
 CodeFormatter formatter = ToolFactory.createCodeFormatter （空值）; 
 ISourceRange range = cu.getSourceRange（）; 
 TextEdit indent_edit = 
 formatter.format（CodeFormatter.K_COMPILATION_UNIT，
 cu.getSource（），range.getOffset（），range.getLength（），0，null）; 
 cu.applyTextEdit（indent_edit，null）; 
 
 cu.reconcile（）; 
  

重新格式化整个文件。如果您需要重新格式化，还有其他选项...

I am working on an Eclipse plugin that modifies Java code in a user's project.

Basically the result of this plugin is that Java annotations are added to some methods, so

void foo() { ... }

becomes

@MyAnnotation
void foo() { ... }

Except that it doesn't quite look like that; the indentation on the newly inserted annotation is wack (specifically, the new annotation is all the way to the left-hand side of the line). I'd like to make all my changes to the file, and then programmatically call "Correct Indentation."

Does anyone know how to do this? I can't find the answer here or in the JDT forums, and all the classes that look relevant (IndentAction, JavaIndenter) are in internal packages which I'm not supposed to use...

Thanks!

解决方案

Well I think I may have figured out the solution I want. Guess I should have spend more time searching before asking... but for future reference, here's what I did! The good stuff was in the ToolFactory...

import org.eclipse.jdt.core.ToolFactory;
import org.eclipse.jdt.core.formatter.CodeFormatter;
import org.eclipse.jdt.core.ISourceRange;
import org.eclipse.text.edits.TextEdit;
import org.eclipse.jdt.core.ICompilationUnit;

...

ICompilationUnit cu = ...

...

CodeFormatter formatter = ToolFactory.createCodeFormatter(null);
ISourceRange range = cu.getSourceRange();
TextEdit indent_edit =
  formatter.format(CodeFormatter.K_COMPILATION_UNIT, 
    cu.getSource(), range.getOffset(), range.getLength(), 0, null);
cu.applyTextEdit(indent_edit, null);

cu.reconcile();

This reformats the entire file. There are other options if you need to reformat less...

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