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test/java/lang/invoke/lambda/LambdaAsm.java

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   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8027232
  27  * @summary ensures that j.l.i.InvokerByteCodeGenerator and ASM visitMethodInsn
  28  * generate  bytecodes with correct constant pool references


  29  * @compile -XDignore.symbol.file LambdaAsm.java LUtils.java
  30  * @run main/othervm LambdaAsm
  31  */
  32 import com.sun.tools.classfile.Attribute;
  33 import com.sun.tools.classfile.ClassFile;
  34 import com.sun.tools.classfile.Code_attribute;
  35 import com.sun.tools.classfile.ConstantPool;
  36 import com.sun.tools.classfile.ConstantPool.CPInfo;
  37 import com.sun.tools.classfile.Instruction;
  38 import com.sun.tools.classfile.Method;
  39 import java.io.ByteArrayInputStream;
  40 import java.io.File;
  41 import java.util.ArrayList;
  42 import java.nio.file.DirectoryStream;
  43 import java.nio.file.Path;
  44 import jdk.internal.org.objectweb.asm.ClassWriter;
  45 import jdk.internal.org.objectweb.asm.MethodVisitor;
  46 
  47 import static java.nio.file.Files.*;
  48 import static jdk.internal.org.objectweb.asm.Opcodes.*;


 116         for (Method m : cf.methods) {
 117             String mname = m.getName(cf.constant_pool);
 118             if (mname.equals(mthd)) {
 119                 for (Attribute a : m.attributes) {
 120                     if ("Code".equals(a.getName(cf.constant_pool))) {
 121                         count++;
 122                         checkMethod(cf.getName(), mname, cf.constant_pool,
 123                                 (Code_attribute) a);
 124                     }
 125                 }
 126             }
 127         }
 128         return count;
 129     }
 130 
 131     static void verifyInvokerBytecodeGenerator() throws Exception {
 132         int count = 0;
 133         int mcount = 0;
 134         try (DirectoryStream<Path> ds = newDirectoryStream(new File(".").toPath(),
 135                 // filter in lambda proxy classes
 136                 "A$I$$Lambda$?.class")) {
 137             for (Path p : ds) {
 138                 System.out.println(p.toFile());
 139                 ClassFile cf = ClassFile.read(p.toFile());
 140                 // Check those methods implementing Supplier.get
 141                 mcount += checkMethod(cf, "get");
 142                 count++;
 143             }
 144         }
 145         if (count < 3) {
 146             throw new RuntimeException("unexpected number of files, "
 147                     + "expected atleast 3 files, but got only " + count);
 148         }
 149         if (mcount < 3) {
 150             throw new RuntimeException("unexpected number of methods, "
 151                     + "expected atleast 3 methods, but got only " + mcount);
 152         }
 153     }
 154 
 155     static void verifyASM() throws Exception {
 156         ClassWriter cw = new ClassWriter(0);




   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 8027232
  27  * @summary ensures that j.l.i.InvokerByteCodeGenerator and ASM visitMethodInsn
  28  * generate  bytecodes with correct constant pool references
  29  * @modules java.base/jdk.internal.org.objectweb.asm
  30  *          jdk.compiler/com.sun.tools.classfile
  31  * @compile -XDignore.symbol.file LambdaAsm.java LUtils.java
  32  * @run main/othervm LambdaAsm
  33  */
  34 import com.sun.tools.classfile.Attribute;
  35 import com.sun.tools.classfile.ClassFile;
  36 import com.sun.tools.classfile.Code_attribute;
  37 import com.sun.tools.classfile.ConstantPool;
  38 import com.sun.tools.classfile.ConstantPool.CPInfo;
  39 import com.sun.tools.classfile.Instruction;
  40 import com.sun.tools.classfile.Method;
  41 import java.io.ByteArrayInputStream;
  42 import java.io.File;
  43 import java.util.ArrayList;
  44 import java.nio.file.DirectoryStream;
  45 import java.nio.file.Path;
  46 import jdk.internal.org.objectweb.asm.ClassWriter;
  47 import jdk.internal.org.objectweb.asm.MethodVisitor;
  48 
  49 import static java.nio.file.Files.*;
  50 import static jdk.internal.org.objectweb.asm.Opcodes.*;


 118         for (Method m : cf.methods) {
 119             String mname = m.getName(cf.constant_pool);
 120             if (mname.equals(mthd)) {
 121                 for (Attribute a : m.attributes) {
 122                     if ("Code".equals(a.getName(cf.constant_pool))) {
 123                         count++;
 124                         checkMethod(cf.getName(), mname, cf.constant_pool,
 125                                 (Code_attribute) a);
 126                     }
 127                 }
 128             }
 129         }
 130         return count;
 131     }
 132 
 133     static void verifyInvokerBytecodeGenerator() throws Exception {
 134         int count = 0;
 135         int mcount = 0;
 136         try (DirectoryStream<Path> ds = newDirectoryStream(new File(".").toPath(),
 137                 // filter in lambda proxy classes
 138                 "A$I$$Lambda$*.class")) {
 139             for (Path p : ds) {
 140                 System.out.println(p.toFile());
 141                 ClassFile cf = ClassFile.read(p.toFile());
 142                 // Check those methods implementing Supplier.get
 143                 mcount += checkMethod(cf, "get");
 144                 count++;
 145             }
 146         }
 147         if (count < 3) {
 148             throw new RuntimeException("unexpected number of files, "
 149                     + "expected atleast 3 files, but got only " + count);
 150         }
 151         if (mcount < 3) {
 152             throw new RuntimeException("unexpected number of methods, "
 153                     + "expected atleast 3 methods, but got only " + mcount);
 154         }
 155     }
 156 
 157     static void verifyASM() throws Exception {
 158         ClassWriter cw = new ClassWriter(0);


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