Eclipse抽象语法树编程访问

它不是一个 准确的 回答,这可能会给你一个开始的地方:

正如在这里所说的 question ,

这里有一个完整的例子 eclipse corner article ,更多详细信息请参见 eclipse help . 在第59张幻灯片中, this presentation ,您将看到如何对源代码应用更改。

// get an ICompilationUnit by some means
// you might drill down from an IJavaProject, for instance 
ICompilationUnit iunit = ...

// create a new parser for the latest Java Language Spec
ASTParser parser = ASTParser.newParser(AST.JLS3);

// tell the parser you are going to pass it some code where the type level is a source file
// you might also just want to parse a block, or a method ("class body declaration"), etc
parser.setKind(ASTParser.K_COMPILATION_UNIT);

// set the source to be parsed to the ICompilationUnit
// we could also use a character array
parser.setSource(iunit);

// parse it.
// the output will be a CompilationUnit (also an ASTNode)
// the null is because we're not using a progress monitor
CompilationUnit unit = (CompilationUnit) parser.createAST(null);

不要被ICompilationUnit与CompilationUnit之间的区别搞糊涂,这似乎只是它们本身没有创造性命名的结果。compilationUnit是一种astnode类型。此上下文中的ICompilationUnit类似于文件句柄。有关区别的更多信息,请参见以下内容: http://wiki.eclipse.org/FAQ_How_do_I_manipulate_Java_code%3F