30 import java.util.List;
  31 
  32 import javax.annotation.processing.ProcessingEnvironment;
  33 import javax.lang.model.element.Element;
  34 import javax.lang.model.element.PackageElement;
  35 import javax.lang.model.type.TypeMirror;
  36 import javax.tools.Diagnostic;
  37 import javax.tools.FileObject;
  38 import javax.tools.JavaCompiler.CompilationTask;
  39 
  40 import com.sun.source.doctree.DocCommentTree;
  41 import com.sun.source.doctree.DocTree;
  42 
  43 /**
  44  * Provides access to syntax trees for doc comments.
  45  *
  46  * @since 1.8
  47  */
  48 public abstract class DocTrees extends Trees {
  49     /**





  50      * Returns a DocTrees object for a given CompilationTask.
  51      * @param task the compilation task for which to get the Trees object
  52      * @return the DocTrees object
  53      * @throws IllegalArgumentException if the task does not support the Trees API.
  54      */
  55     public static DocTrees instance(CompilationTask task) {
  56         return (DocTrees) Trees.instance(task);
  57     }
  58 
  59     /**
  60      * Returns a DocTrees object for a given ProcessingEnvironment.
  61      * @param env the processing environment for which to get the Trees object
  62      * @return the DocTrees object
  63      * @throws IllegalArgumentException if the env does not support the Trees API.
  64      */
  65     public static DocTrees instance(ProcessingEnvironment env) {
  66         if (!env.getClass().getName().equals("com.sun.tools.javac.processing.JavacProcessingEnvironment"))
  67             throw new IllegalArgumentException();
  68         return (DocTrees) getJavacTrees(ProcessingEnvironment.class, env);
  69     }

  30 import java.util.List;
  31 
  32 import javax.annotation.processing.ProcessingEnvironment;
  33 import javax.lang.model.element.Element;
  34 import javax.lang.model.element.PackageElement;
  35 import javax.lang.model.type.TypeMirror;
  36 import javax.tools.Diagnostic;
  37 import javax.tools.FileObject;
  38 import javax.tools.JavaCompiler.CompilationTask;
  39 
  40 import com.sun.source.doctree.DocCommentTree;
  41 import com.sun.source.doctree.DocTree;
  42 
  43 /**
  44  * Provides access to syntax trees for doc comments.
  45  *
  46  * @since 1.8
  47  */
  48 public abstract class DocTrees extends Trees {
  49     /**
  50      * Constructor for subclasses to call.
  51      */
  52     public DocTrees() {}
  53 
  54     /**
  55      * Returns a DocTrees object for a given CompilationTask.
  56      * @param task the compilation task for which to get the Trees object
  57      * @return the DocTrees object
  58      * @throws IllegalArgumentException if the task does not support the Trees API.
  59      */
  60     public static DocTrees instance(CompilationTask task) {
  61         return (DocTrees) Trees.instance(task);
  62     }
  63 
  64     /**
  65      * Returns a DocTrees object for a given ProcessingEnvironment.
  66      * @param env the processing environment for which to get the Trees object
  67      * @return the DocTrees object
  68      * @throws IllegalArgumentException if the env does not support the Trees API.
  69      */
  70     public static DocTrees instance(ProcessingEnvironment env) {
  71         if (!env.getClass().getName().equals("com.sun.tools.javac.processing.JavacProcessingEnvironment"))
  72             throw new IllegalArgumentException();
  73         return (DocTrees) getJavacTrees(ProcessingEnvironment.class, env);
  74     }