/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug     6338064 6346249 6340951 6392177

 * @summary Tree API: can't determine kind of operator

 * @author  Peter von der Ah\u00e9

 * @compile -processor TestOperators -proc:only TestOperators.java

 */

import java.util.Set;

import javax.annotation.processing.*;

import javax.lang.model.element.*;

import javax.lang.model.util.*;

import static javax.tools.Diagnostic.Kind.*;

import com.sun.source.tree.*;

import com.sun.source.util.Trees;

import static com.sun.source.tree.Tree.Kind.*;

@interface TestMe {

    Tree.Kind value();

}

@SupportedAnnotationTypes("TestMe")

    @TestMe(POSTFIX_INCREMENT)

    public int test_POSTFIX_INCREMENT(int i) {

        return i++;

    }

    @TestMe(POSTFIX_DECREMENT)

    public int test_POSTFIX_DECREMENT(int i) {

        return i--;

    }

    @TestMe(PREFIX_INCREMENT)

    public int test_PREFIX_INCREMENT(int i) {

        return ++i;

    }

    @TestMe(PREFIX_DECREMENT)

    public int test_PREFIX_DECREMENT(int i) {

        return --i;

    }

    @TestMe(UNARY_PLUS)

    public int test_UNARY_PLUS(int i) {

        return +i;

    }

    @TestMe(UNARY_MINUS)

    public int test_UNARY_MINUS(int i) {

        return -i;

    }

    @TestMe(BITWISE_COMPLEMENT)

    public int test_BITWISE_COMPLEMENT(int i) {

        return ~i;

    }

    @TestMe(LOGICAL_COMPLEMENT)

    public boolean test_LOGICAL_COMPLEMENT(boolean b) {

        return !b;

    }

    @TestMe(MULTIPLY)

    public int test_MULTIPLY(int i, int j) {

        return i * j;

    }

    @TestMe(DIVIDE)

    public int test_DIVIDE(int i, int j) {

        return i / j;

    }

    @TestMe(REMAINDER)

    public int test_REMAINDER(int i, int j) {

        return i % j;

    }

    @TestMe(PLUS)

    public int test_PLUS(int i, int j) {

        return i + j;

    }

    @TestMe(MINUS)

    public int test_MINUS(int i, int j) {

        return i - j;

    }

    @TestMe(LEFT_SHIFT)

    public int test_LEFT_SHIFT(int i, int j) {

        return i << j;

    }

    @TestMe(RIGHT_SHIFT)

    public int test_RIGHT_SHIFT(int i, int j) {

        return i >> j;

    }

    @TestMe(UNSIGNED_RIGHT_SHIFT)

    public int test_UNSIGNED_RIGHT_SHIFT(int i, int j) {

        return i >>> j;

    }

    @TestMe(LESS_THAN)

    public boolean test_LESS_THAN(int i, int j) {

        return i < j;

    }

    @TestMe(GREATER_THAN)

    public boolean test_GREATER_THAN(int i, int j) {

        return i > j;

    }

    @TestMe(LESS_THAN_EQUAL)

    public boolean test_LESS_THAN_EQUAL(int i, int j) {

        return i <= j;

    }

    @TestMe(GREATER_THAN_EQUAL)

    public boolean test_GREATER_THAN_EQUAL(int i, int j) {

        return i >= j;

    }

    @TestMe(EQUAL_TO)

    public boolean test_EQUAL_TO(int i, int j) {

        return i == j;

    }

    @TestMe(NOT_EQUAL_TO)

    public boolean test_NOT_EQUAL_TO(int i, int j) {

        return i != j;

    }

    @TestMe(AND)

    public boolean test_AND(boolean a, boolean b) {

        return a & b;

    }

    @TestMe(XOR)

    public boolean test_XOR(boolean a, boolean b) {

        return a ^ b;

    }

    @TestMe(OR)

    public boolean test_OR(boolean a, boolean b) {

        return a | b;

    }

    @TestMe(CONDITIONAL_AND)

    public boolean test_CONDITIONAL_AND(boolean a, boolean b) {

        return a && b;

    }

    @TestMe(CONDITIONAL_OR)

    public boolean test_CONDITIONAL_OR(boolean a, boolean b) {

        return a || b;

    }

    @TestMe(MULTIPLY_ASSIGNMENT)

    public int test_MULTIPLY_ASSIGNMENT(int i, int j) {

        return i *= j;

    }

    @TestMe(DIVIDE_ASSIGNMENT)

    public int test_DIVIDE_ASSIGNMENT(int i, int j) {

        return i /= j;

    }

    @TestMe(REMAINDER_ASSIGNMENT)

    public int test_REMAINDER_ASSIGNMENT(int i, int j) {

        return i %= j;

    }

    @TestMe(PLUS_ASSIGNMENT)

    public int test_PLUS_ASSIGNMENT(int i, int j) {

        return i += j;

    }

    @TestMe(MINUS_ASSIGNMENT)

    public int test_MINUS_ASSIGNMENT(int i, int j) {

        return i -= j;

    }

    @TestMe(LEFT_SHIFT_ASSIGNMENT)

    public int test_LEFT_SHIFT_ASSIGNMENT(int i, int j) {

        return i <<= j;

    }

    @TestMe(RIGHT_SHIFT_ASSIGNMENT)

    public int test_RIGHT_SHIFT_ASSIGNMENT(int i, int j) {

        return i >>= j;

    }

    @TestMe(UNSIGNED_RIGHT_SHIFT_ASSIGNMENT)

    public int test_UNSIGNED_RIGHT_SHIFT_ASSIGNMENT(int i, int j) {

        return i >>>= j;

    }

    @TestMe(AND_ASSIGNMENT)

    public boolean test_AND_ASSIGNMENT(boolean a, boolean b) {

        return a &= b;

    }

    @TestMe(XOR_ASSIGNMENT)

    public boolean test_XOR_ASSIGNMENT(boolean a, boolean b) {

        return a ^= b;

    }

    @TestMe(OR_ASSIGNMENT)

    public boolean test_OR_ASSIGNMENT(boolean a, boolean b) {

        return a |= b;

    }

    @TestMe(INT_LITERAL)

    public Object test_INT_LITERAL() {

        return 0;

    }

    @TestMe(LONG_LITERAL)

    public Object test_LONG_LITERAL() {

        return 0L;

    }

    @TestMe(FLOAT_LITERAL)

    public Object test_FLOAT_LITERAL() {

        return 0.0F;

    }

    @TestMe(DOUBLE_LITERAL)

    public Object test_DOUBLE_LITERAL() {

        return 0.0;

    }

    @TestMe(BOOLEAN_LITERAL)

    public Object test_BOOLEAN_LITERAL() {

        return true;

    }

    @TestMe(CHAR_LITERAL)

    public Object test_CHAR_LITERAL() {

        return 'a';

    }

    @TestMe(STRING_LITERAL)

    public Object test_STRING_LITERAL() {

        return "a";

    }

    @TestMe(NULL_LITERAL)

    public Object test_NULL_LITERAL() {

        return null;

    }

    @TestMe(UNBOUNDED_WILDCARD)

    public Set<?> test_UNBOUNDED_WILDCARD() {

        return null;

    }

    @TestMe(EXTENDS_WILDCARD)

    public Set<? extends Number> test_EXTENDS_WILDCARD() {

        return null;

    }

    @TestMe(SUPER_WILDCARD)

    public Set<? super Number> test_SUPER_WILDCARD() {

        return null;

    }

    public boolean process(Set<? extends TypeElement> annotations,

                           RoundEnvironment roundEnvironment)

    {

        final Trees trees = Trees.instance(processingEnv);

        final Messager log = processingEnv.getMessager();

        final Elements elements = processingEnv.getElementUtils();

            @Override

            public Void visitExecutable(ExecutableElement e, Void p) {

                Object debug = e; // info for exception handler

                try {

                    TestMe info = e.getAnnotation(TestMe.class);

                    if (info == null)

                        return null;

                    Tree.Kind kind = info.value();

                    MethodTree node = trees.getTree(e);

                    debug = node;

                    Tree testNode;

                    switch (kind) {

                    case UNBOUNDED_WILDCARD:

                    case EXTENDS_WILDCARD:

                    case SUPER_WILDCARD:

                        ParameterizedTypeTree typeTree;

                        typeTree = (ParameterizedTypeTree) node.getReturnType();

                        testNode = typeTree.getTypeArguments().get(0);

                        break;

                    default:

                        ReturnTree returnNode;

                        returnNode = (ReturnTree) node.getBody().getStatements().get(0);

                        testNode = returnNode.getExpression();

                    }

                    if (testNode.getKind() != kind) {

                        log.printMessage(ERROR, testNode.getKind() + " != " + kind, e);

                        throw new AssertionError(testNode);

                    }

                    System.err.format("OK: %32s %s%n", kind, testNode);

                } catch (Error ex) {

                    System.err.println("Error while looking at " + debug);

                    throw ex;

                }

                return null;

            }

        }

        Scan scan = new Scan();

        for (Element e : roundEnvironment.getRootElements()) {

            scan.scan(e);

        }

        return true;

    }

}