36 import javax.lang.model.type.DeclaredType;
37 import javax.lang.model.type.ErrorType;
38 import javax.lang.model.type.TypeMirror;
39 import javax.tools.Diagnostic;
40 import javax.tools.JavaCompiler.CompilationTask;
41
42 import com.sun.source.tree.CatchTree;
43 import com.sun.source.tree.ClassTree;
44 import com.sun.source.tree.CompilationUnitTree;
45 import com.sun.source.tree.MethodTree;
46 import com.sun.source.tree.Scope;
47 import com.sun.source.tree.Tree;
48
49 /**
50 * Bridges JSR 199, JSR 269, and the Tree API.
51 *
52 * @author Peter von der Ahé
53 */
54 public abstract class Trees {
55 /**
56 * Returns a Trees object for a given CompilationTask.
57 * @param task the compilation task for which to get the Trees object
58 * @throws IllegalArgumentException if the task does not support the Trees API.
59 * @return the Trees object
60 */
61 public static Trees instance(CompilationTask task) {
62 String taskClassName = task.getClass().getName();
63 if (!taskClassName.equals("com.sun.tools.javac.api.JavacTaskImpl")
64 && !taskClassName.equals("com.sun.tools.javac.api.BasicJavacTask"))
65 throw new IllegalArgumentException();
66 return getJavacTrees(CompilationTask.class, task);
67 }
68
69 /**
70 * Returns a Trees object for a given ProcessingEnvironment.
71 * @param env the processing environment for which to get the Trees object
72 * @throws IllegalArgumentException if the env does not support the Trees API.
73 * @return the Trees object
74 */
75 public static Trees instance(ProcessingEnvironment env) {
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36 import javax.lang.model.type.DeclaredType;
37 import javax.lang.model.type.ErrorType;
38 import javax.lang.model.type.TypeMirror;
39 import javax.tools.Diagnostic;
40 import javax.tools.JavaCompiler.CompilationTask;
41
42 import com.sun.source.tree.CatchTree;
43 import com.sun.source.tree.ClassTree;
44 import com.sun.source.tree.CompilationUnitTree;
45 import com.sun.source.tree.MethodTree;
46 import com.sun.source.tree.Scope;
47 import com.sun.source.tree.Tree;
48
49 /**
50 * Bridges JSR 199, JSR 269, and the Tree API.
51 *
52 * @author Peter von der Ahé
53 */
54 public abstract class Trees {
55 /**
56 * Constructor for subclasses to call.
57 */
58 public Trees() {}
59
60 /**
61 * Returns a Trees object for a given CompilationTask.
62 * @param task the compilation task for which to get the Trees object
63 * @throws IllegalArgumentException if the task does not support the Trees API.
64 * @return the Trees object
65 */
66 public static Trees instance(CompilationTask task) {
67 String taskClassName = task.getClass().getName();
68 if (!taskClassName.equals("com.sun.tools.javac.api.JavacTaskImpl")
69 && !taskClassName.equals("com.sun.tools.javac.api.BasicJavacTask"))
70 throw new IllegalArgumentException();
71 return getJavacTrees(CompilationTask.class, task);
72 }
73
74 /**
75 * Returns a Trees object for a given ProcessingEnvironment.
76 * @param env the processing environment for which to get the Trees object
77 * @throws IllegalArgumentException if the env does not support the Trees API.
78 * @return the Trees object
79 */
80 public static Trees instance(ProcessingEnvironment env) {
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