无法获取ITranslationUnit在Eclipse插件中创建C文件的AST [英] Can't get ITranslationUnit for creating an AST of an C-File within a Eclipse Plugin
问题描述
我正在通过工作区中生成的项目的C-File生成一个具有CDT Eclipse Framework帮助的AST。但是每次我尝试通过
$ pre>
ice and tu为null，我收到以下错误
java.lang.NullPointerException
在org.eclipse.cdt.internal.core.pdom.TeamPDOMImportOperation.expandLocation（TeamPDOMImportOperation.java:135）
在org.eclipse.cdt.internal.core.pdom.TeamPDOMImportOperation.getImportLocation（TeamPDOMImportOperation.java:126）
在org.eclipse.cdt.internal.core.pdom.TeamPDOMImportOperation.run（TeamPDOMImportOperation.java:92）
在org.eclipse.cdt.internal.core.pdom.PDOMManager.createIndexer（PDOMManager.java:600）
在org.eclipse.cdt.internal.core.pdom.PDOMSetupJob.run（PDOMSetupJob。 java：58）
在org.eclipse.core.internal.jobs.Worker.run（Worker.java:54）
我有一个Eclipse插件，它实现了IApplication扩展。在运行方法我有以下代码。
IProgressMonitor progressMonitor = new NullProgressMonitor（）;
IWorkspaceRoot root = ResourcesPlugin.getWorkspace（）。getRoot（）;
IProject project = root.getProject（NewProject）;
try {
if（project.exists（））{
if（project.isOpen（））
project.close（null）;
project.delete（false，false，progressMonitor）;
project.create（progressMonitor）;
project.open（progressMonitor）;
}
else {
project.create（progressMonitor）;
project.open（progressMonitor）;
}
if（！project.isNatureEnabled（org.eclipse.cdt.core.CProjectNature.C_NATURE_ID））{
CProjectNature.addCNature（project，null）;
}
project.close（null）;
project.open（null）;
} catch（CoreException e1）{
e1.printStackTrace（）;
}
IFile file = project.getFile（stub.c）;
try {
IPath workspacerawlocation = ResourcesPlugin.getWorkspace（）。getRoot（）。getRawLocation（）;
FileInputStream fileStream = new FileInputStream（workspacerawlocation.append（stub.h）。toString（））;
if（！file.exists（））
file.create（fileStream，false，null）;
ICElement ice = CoreModel.getDefault（）。create（file）;
if（ice == null）
System.out.println（ice is null）;
ITranslationUnit tu =（ITranslationUnit）ice;
if（tu == null）{
System.out.println（tu is null）;
}
else {
IASTTranslationUnit ast = tu.getAST（）;
}
} catch（CoreException e）{
// TODO自动生成的catch块
e.printStackTrace（）;
} catch（FileNotFoundException e）{
// TODO自动生成的catch块
e.printStackTrace（）;
}
}
有人可以帮忙吗？我是否想念一些插件依赖或初始化？
跟随我的评论：为了做一些代码操作，你必须使CDT索引器按照C Model / AST所要求的工作。我建议创建C项目配置的两种可能方法：
1]查看 org.eclipse.cdt.core.tests 中的测试列表，请参见＃How_can_I_programmatically_create_a_new_CDT_project.3Frel =nofollow>这里。这些项目包含非常简单的.cproject配置，但可能需要对您的需求进行某些更改。
2]将C程序从工作C项目保存到某处，并在创建项目，只需将其复制。您可能需要刷新项目，或关闭/重新打开它，以便CDT重新加载配置。
I'm trying to generate an AST with help of the CDT Eclipse Framework from an C-File of a generated project in my workspace. But every time i try to get an TranslationUnit through
ICElement ice = CoreModel.getDefault().create(file);
ITranslationUnit tu= (ITranslationUnit) ice;
ice and tu are null and i get the following error
java.lang.NullPointerException
at org.eclipse.cdt.internal.core.pdom.TeamPDOMImportOperation.expandLocation(TeamPDOMImportOperation.java:135)
at org.eclipse.cdt.internal.core.pdom.TeamPDOMImportOperation.getImportLocation(TeamPDOMImportOperation.java:126)
at org.eclipse.cdt.internal.core.pdom.TeamPDOMImportOperation.run(TeamPDOMImportOperation.java:92)
at org.eclipse.cdt.internal.core.pdom.PDOMManager.createIndexer(PDOMManager.java:600)
at org.eclipse.cdt.internal.core.pdom.PDOMSetupJob.run(PDOMSetupJob.java:58)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
I have an Eclipse Plugin which implements an IApplication extension. In the run Method i have following code.
IProgressMonitor progressMonitor = new NullProgressMonitor();
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
IProject project = root.getProject("NewProject");
try {
if(project.exists()){
if(project.isOpen())
project.close(null);
project.delete(false, false, progressMonitor);
project.create(progressMonitor);
project.open(progressMonitor);
}
else{
project.create(progressMonitor);
project.open(progressMonitor);
}
if(!project.isNatureEnabled(org.eclipse.cdt.core.CProjectNature.C_NATURE_ID)){
CProjectNature.addCNature(project, null);
}
project.close(null);
project.open(null);
} catch (CoreException e1) {
e1.printStackTrace();
}
IFile file = project.getFile("stub.c");
try {
IPath workspacerawlocation = ResourcesPlugin.getWorkspace().getRoot().getRawLocation();
FileInputStream fileStream = new FileInputStream(workspacerawlocation.append("stub.h").toString());
if(!file.exists())
file.create(fileStream, false, null);
ICElement ice = CoreModel.getDefault().create(file);
if(ice == null)
System.out.println("ice is null");
ITranslationUnit tu= (ITranslationUnit) ice;
if(tu == null){
System.out.println("tu is null");
}
else{
IASTTranslationUnit ast = tu.getAST();
}
} catch (CoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Can anyone help? Did i miss some Plugin-dependencies or initializations?
Following up to my comment: in order to do some code manipulation, you have to have the CDT indexer working as it is required by C Model/AST. I suggest two possible ways of creating a C project configuration:
1] Look here for list of tests in org.eclipse.cdt.core.tests which create CDT projects. These projects contain very simple .cproject configuration, but some alterations to your needs might be required.
2] Save a .cproject from a working C project somewhere and when creating your projects, just copy it into. You may need to refresh the project somehow or close/reopen it so that CDT reloads the configuration.
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