Bug 36476

Description Konstantin Scheglov 2003-04-14 22:51:56 EDT

I need way for parsing part of Java code in String and add it then in existing AST. I.e. something like this is needed:
AST.parseExpression(String)
AST.parseMethodDeclaration(String)
  May be also other information, like position in current AST, where I am going to add new AST subtree.


Here is small description of problem:
  I want to edit Java file in multipage editor, one page is standard java
editor and second is my page. For my page I need AST of source, so I parse
source on open and then use it. However now I need change source, but I
still need AST, and I show AST in tree view, so I don't want parse source
again and recreate view. Parsing takes long time and after recreate
position in tree view lost. So, I want change source and then manually
update (replace, insert or delete) part of AST. Is there better way?
  Currently I create all needed AST structures manually, using AST.newXXX.
But this is fairly complex work, and I would like to simplify it. For
example, is it possible to parse only one line of code in context of
current position in AST. But I can not find way to do this.