我正在编写Java编译器插件,以在项目的某些类中添加一个名为MyClass
的简单类(类似于lombok那样)。我设法通过编写下面的代码来做到这一点(您可以找到整个代码为here):
TreeMaker maker = TreeMaker.instance(context);
Names symbolsTable = Names.instance(context);
//...
JCTree.JCMethodDecl constructor = maker.MethodDef(maker.Modifiers(Flags.PUBLIC),
symbolsTable.init,
null,
List.nil(), // params
List.nil(),
List.nil(),
maker.Block(0, List.of(callSuper)),
null
);
JCTree.JCClassDecl myClass = maker
.at(((JCTree) node).pos)
.ClassDef(maker.Modifiers(Flags.PUBLIC | Flags.STATIC | Flags.FINAL),
symbolsTable.fromString("MyClass"),
List.nil(),
maker.Ident(symbolsTable.fromString("AnotherClass")),
List.nil(),
List.of(constructor)
);
((JCTree.JCClassDecl) node).defs = ((JCTree.JCClassDecl) node).defs.append(myClass);
我不知道如何编写callSuper
语句来获取此输出:
public static final MyClass extends AnotherClass {
public MyClass () {
super(); // I want this line
}
}
感谢您的任何帮助。
callSuper
语句的编写如下:
JCTree.JCMethodInvocation superMethod = maker.Apply(List.nil(), maker.Ident(symbolsTable._super), List.nil());
JCTree.JCExpressionStatement callSuper = maker.Exec(superMethod);
然后在构造函数中使用它:
JCTree.JCMethodDecl constructor = maker.MethodDef(maker.Modifiers(Flags.PUBLIC),
symbolsTable.init,
null,
List.nil(),
List.nil(),
List.nil(),
maker.Block(0, List.of(callSuper)),
null
);