| // Copyright (c) 2024, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /** |
| * Dump of class file for twr.twraddsuppressed.TestClass |
| * |
| * <p>* |
| * |
| * <p>This is used to get the JDK-9 javac code with `$closeResource`, which `-target 9` for later |
| * javac versions does not produce. |
| * |
| * <p>package twr.twraddsuppressed; |
| * |
| * <p>import java.io.Closeable; |
| * |
| * <p>public class TestClass { |
| * |
| * <p>public static class MyClosable implements Closeable { @Override public void close() { throw |
| * new RuntimeException("CLOSE"); } } |
| * |
| * <p>public static void foo() { throw new RuntimeException("FOO"); } |
| * |
| * <p>public static void bar() { // NOTE: The $closeResource helper is _only_ generated by the JDK-9 |
| * compiler. // // Use twr twice to have javac generate a shared $closeResource helper. try |
| * (MyClosable closable = new MyClosable()) { foo(); } try (MyClosable closable = new MyClosable()) |
| * { foo(); } } |
| * |
| * <p>public static void main(String[] args) { try { bar(); } catch (Exception e) { Throwable[] |
| * suppressed = e.getSuppressed(); if (suppressed.length == 0) { System.out.println("NONE"); } else |
| * { for (Throwable throwable : suppressed) { System.out.println(throwable.getMessage()); } } } } } |
| */ |
| package twr.twraddsuppressed.asm; |
| |
| import org.objectweb.asm.AnnotationVisitor; |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.FieldVisitor; |
| import org.objectweb.asm.Label; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| import org.objectweb.asm.RecordComponentVisitor; |
| |
| public class TestClassDump implements Opcodes { |
| |
| public static byte[] dump() throws Exception { |
| |
| ClassWriter classWriter = new ClassWriter(0); |
| FieldVisitor fieldVisitor; |
| RecordComponentVisitor recordComponentVisitor; |
| MethodVisitor methodVisitor; |
| AnnotationVisitor annotationVisitor0; |
| |
| classWriter.visit( |
| V9, |
| ACC_PUBLIC | ACC_SUPER, |
| "twr/twraddsuppressed/TestClass", |
| null, |
| "java/lang/Object", |
| null); |
| |
| classWriter.visitSource("TestClass.java", null); |
| |
| classWriter.visitInnerClass( |
| "twr/twraddsuppressed/TestClass$MyClosable", |
| "twr/twraddsuppressed/TestClass", |
| "MyClosable", |
| ACC_PUBLIC | ACC_STATIC); |
| |
| { |
| methodVisitor = classWriter.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitLineNumber(8, label0); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| methodVisitor.visitInsn(RETURN); |
| Label label1 = new Label(); |
| methodVisitor.visitLabel(label1); |
| methodVisitor.visitLocalVariable( |
| "this", "Ltwraddsuppressed/TestClass;", null, label0, label1, 0); |
| methodVisitor.visitMaxs(1, 1); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "foo", "()V", null, null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitLineNumber(19, label0); |
| methodVisitor.visitTypeInsn(NEW, "java/lang/RuntimeException"); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitLdcInsn("FOO"); |
| methodVisitor.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); |
| methodVisitor.visitInsn(ATHROW); |
| methodVisitor.visitMaxs(3, 0); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = classWriter.visitMethod(ACC_PUBLIC | ACC_STATIC, "bar", "()V", null, null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| Label label1 = new Label(); |
| Label label2 = new Label(); |
| methodVisitor.visitTryCatchBlock(label0, label1, label2, "java/lang/Throwable"); |
| Label label3 = new Label(); |
| methodVisitor.visitTryCatchBlock(label0, label1, label3, null); |
| Label label4 = new Label(); |
| methodVisitor.visitTryCatchBlock(label2, label4, label3, null); |
| Label label5 = new Label(); |
| Label label6 = new Label(); |
| Label label7 = new Label(); |
| methodVisitor.visitTryCatchBlock(label5, label6, label7, "java/lang/Throwable"); |
| Label label8 = new Label(); |
| methodVisitor.visitTryCatchBlock(label5, label6, label8, null); |
| Label label9 = new Label(); |
| methodVisitor.visitTryCatchBlock(label7, label9, label8, null); |
| Label label10 = new Label(); |
| methodVisitor.visitLabel(label10); |
| methodVisitor.visitLineNumber(24, label10); |
| methodVisitor.visitTypeInsn(NEW, "twr/twraddsuppressed/TestClass$MyClosable"); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitMethodInsn( |
| INVOKESPECIAL, "twr/twraddsuppressed/TestClass$MyClosable", "<init>", "()V", false); |
| methodVisitor.visitVarInsn(ASTORE, 0); |
| Label label11 = new Label(); |
| methodVisitor.visitLabel(label11); |
| methodVisitor.visitInsn(ACONST_NULL); |
| methodVisitor.visitVarInsn(ASTORE, 1); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitLineNumber(25, label0); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, "twr/twraddsuppressed/TestClass", "foo", "()V", false); |
| methodVisitor.visitLabel(label1); |
| methodVisitor.visitLineNumber(26, label1); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, |
| "twr/twraddsuppressed/TestClass", |
| "$closeResource", |
| "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", |
| false); |
| Label label12 = new Label(); |
| methodVisitor.visitJumpInsn(GOTO, label12); |
| methodVisitor.visitLabel(label2); |
| methodVisitor.visitLineNumber(24, label2); |
| methodVisitor.visitFrame( |
| Opcodes.F_FULL, |
| 2, |
| new Object[] {"twr/twraddsuppressed/TestClass$MyClosable", "java/lang/Throwable"}, |
| 1, |
| new Object[] {"java/lang/Throwable"}); |
| methodVisitor.visitVarInsn(ASTORE, 2); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitVarInsn(ASTORE, 1); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitInsn(ATHROW); |
| methodVisitor.visitLabel(label3); |
| methodVisitor.visitLineNumber(26, label3); |
| methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Throwable"}); |
| methodVisitor.visitVarInsn(ASTORE, 3); |
| methodVisitor.visitLabel(label4); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, |
| "twr/twraddsuppressed/TestClass", |
| "$closeResource", |
| "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", |
| false); |
| methodVisitor.visitVarInsn(ALOAD, 3); |
| methodVisitor.visitInsn(ATHROW); |
| methodVisitor.visitLabel(label12); |
| methodVisitor.visitLineNumber(27, label12); |
| methodVisitor.visitFrame(Opcodes.F_CHOP, 2, null, 0, null); |
| methodVisitor.visitTypeInsn(NEW, "twr/twraddsuppressed/TestClass$MyClosable"); |
| methodVisitor.visitInsn(DUP); |
| methodVisitor.visitMethodInsn( |
| INVOKESPECIAL, "twr/twraddsuppressed/TestClass$MyClosable", "<init>", "()V", false); |
| methodVisitor.visitVarInsn(ASTORE, 0); |
| Label label13 = new Label(); |
| methodVisitor.visitLabel(label13); |
| methodVisitor.visitInsn(ACONST_NULL); |
| methodVisitor.visitVarInsn(ASTORE, 1); |
| methodVisitor.visitLabel(label5); |
| methodVisitor.visitLineNumber(28, label5); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, "twr/twraddsuppressed/TestClass", "foo", "()V", false); |
| methodVisitor.visitLabel(label6); |
| methodVisitor.visitLineNumber(29, label6); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, |
| "twr/twraddsuppressed/TestClass", |
| "$closeResource", |
| "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", |
| false); |
| Label label14 = new Label(); |
| methodVisitor.visitJumpInsn(GOTO, label14); |
| methodVisitor.visitLabel(label7); |
| methodVisitor.visitLineNumber(27, label7); |
| methodVisitor.visitFrame( |
| Opcodes.F_FULL, |
| 2, |
| new Object[] {"twr/twraddsuppressed/TestClass$MyClosable", "java/lang/Throwable"}, |
| 1, |
| new Object[] {"java/lang/Throwable"}); |
| methodVisitor.visitVarInsn(ASTORE, 2); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitVarInsn(ASTORE, 1); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitInsn(ATHROW); |
| methodVisitor.visitLabel(label8); |
| methodVisitor.visitLineNumber(29, label8); |
| methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Throwable"}); |
| methodVisitor.visitVarInsn(ASTORE, 4); |
| methodVisitor.visitLabel(label9); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, |
| "twr/twraddsuppressed/TestClass", |
| "$closeResource", |
| "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", |
| false); |
| methodVisitor.visitVarInsn(ALOAD, 4); |
| methodVisitor.visitInsn(ATHROW); |
| methodVisitor.visitLabel(label14); |
| methodVisitor.visitLineNumber(30, label14); |
| methodVisitor.visitFrame(Opcodes.F_CHOP, 2, null, 0, null); |
| methodVisitor.visitInsn(RETURN); |
| methodVisitor.visitLocalVariable( |
| "closable", "Ltwraddsuppressed/TestClass$MyClosable;", null, label11, label12, 0); |
| methodVisitor.visitLocalVariable( |
| "closable", "Ltwraddsuppressed/TestClass$MyClosable;", null, label13, label14, 0); |
| methodVisitor.visitMaxs(2, 5); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = |
| classWriter.visitMethod( |
| ACC_PUBLIC | ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| Label label1 = new Label(); |
| Label label2 = new Label(); |
| methodVisitor.visitTryCatchBlock(label0, label1, label2, "java/lang/Exception"); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitLineNumber(34, label0); |
| methodVisitor.visitMethodInsn( |
| INVOKESTATIC, "twr/twraddsuppressed/TestClass", "bar", "()V", false); |
| methodVisitor.visitLabel(label1); |
| methodVisitor.visitLineNumber(44, label1); |
| Label label3 = new Label(); |
| methodVisitor.visitJumpInsn(GOTO, label3); |
| methodVisitor.visitLabel(label2); |
| methodVisitor.visitLineNumber(35, label2); |
| methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Exception"}); |
| methodVisitor.visitVarInsn(ASTORE, 1); |
| Label label4 = new Label(); |
| methodVisitor.visitLabel(label4); |
| methodVisitor.visitLineNumber(36, label4); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/lang/Exception", "getSuppressed", "()[Ljava/lang/Throwable;", false); |
| methodVisitor.visitVarInsn(ASTORE, 2); |
| Label label5 = new Label(); |
| methodVisitor.visitLabel(label5); |
| methodVisitor.visitLineNumber(37, label5); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitInsn(ARRAYLENGTH); |
| Label label6 = new Label(); |
| methodVisitor.visitJumpInsn(IFNE, label6); |
| Label label7 = new Label(); |
| methodVisitor.visitLabel(label7); |
| methodVisitor.visitLineNumber(38, label7); |
| methodVisitor.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| methodVisitor.visitLdcInsn("NONE"); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
| methodVisitor.visitJumpInsn(GOTO, label3); |
| methodVisitor.visitLabel(label6); |
| methodVisitor.visitLineNumber(40, label6); |
| methodVisitor.visitFrame( |
| Opcodes.F_APPEND, |
| 2, |
| new Object[] {"java/lang/Exception", "[Ljava/lang/Throwable;"}, |
| 0, |
| null); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitVarInsn(ASTORE, 3); |
| methodVisitor.visitVarInsn(ALOAD, 3); |
| methodVisitor.visitInsn(ARRAYLENGTH); |
| methodVisitor.visitVarInsn(ISTORE, 4); |
| methodVisitor.visitInsn(ICONST_0); |
| methodVisitor.visitVarInsn(ISTORE, 5); |
| Label label8 = new Label(); |
| methodVisitor.visitLabel(label8); |
| methodVisitor.visitFrame( |
| Opcodes.F_APPEND, |
| 3, |
| new Object[] {"[Ljava/lang/Throwable;", Opcodes.INTEGER, Opcodes.INTEGER}, |
| 0, |
| null); |
| methodVisitor.visitVarInsn(ILOAD, 5); |
| methodVisitor.visitVarInsn(ILOAD, 4); |
| methodVisitor.visitJumpInsn(IF_ICMPGE, label3); |
| methodVisitor.visitVarInsn(ALOAD, 3); |
| methodVisitor.visitVarInsn(ILOAD, 5); |
| methodVisitor.visitInsn(AALOAD); |
| methodVisitor.visitVarInsn(ASTORE, 6); |
| Label label9 = new Label(); |
| methodVisitor.visitLabel(label9); |
| methodVisitor.visitLineNumber(41, label9); |
| methodVisitor.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| methodVisitor.visitVarInsn(ALOAD, 6); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/lang/Throwable", "getMessage", "()Ljava/lang/String;", false); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
| Label label10 = new Label(); |
| methodVisitor.visitLabel(label10); |
| methodVisitor.visitLineNumber(40, label10); |
| methodVisitor.visitIincInsn(5, 1); |
| methodVisitor.visitJumpInsn(GOTO, label8); |
| methodVisitor.visitLabel(label3); |
| methodVisitor.visitLineNumber(45, label3); |
| methodVisitor.visitFrame( |
| Opcodes.F_FULL, 1, new Object[] {"[Ljava/lang/String;"}, 0, new Object[] {}); |
| methodVisitor.visitInsn(RETURN); |
| Label label11 = new Label(); |
| methodVisitor.visitLabel(label11); |
| methodVisitor.visitLocalVariable( |
| "throwable", "Ljava/lang/Throwable;", null, label9, label10, 6); |
| methodVisitor.visitLocalVariable( |
| "suppressed", "[Ljava/lang/Throwable;", null, label5, label3, 2); |
| methodVisitor.visitLocalVariable("e", "Ljava/lang/Exception;", null, label4, label3, 1); |
| methodVisitor.visitLocalVariable("args", "[Ljava/lang/String;", null, label0, label11, 0); |
| methodVisitor.visitMaxs(2, 7); |
| methodVisitor.visitEnd(); |
| } |
| { |
| methodVisitor = |
| classWriter.visitMethod( |
| ACC_PRIVATE | ACC_STATIC | ACC_SYNTHETIC, |
| "$closeResource", |
| "(Ljava/lang/Throwable;Ljava/lang/AutoCloseable;)V", |
| null, |
| null); |
| methodVisitor.visitCode(); |
| Label label0 = new Label(); |
| Label label1 = new Label(); |
| Label label2 = new Label(); |
| methodVisitor.visitTryCatchBlock(label0, label1, label2, "java/lang/Throwable"); |
| Label label3 = new Label(); |
| methodVisitor.visitLabel(label3); |
| methodVisitor.visitLineNumber(26, label3); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| Label label4 = new Label(); |
| methodVisitor.visitJumpInsn(IFNULL, label4); |
| methodVisitor.visitLabel(label0); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitMethodInsn( |
| INVOKEINTERFACE, "java/lang/AutoCloseable", "close", "()V", true); |
| methodVisitor.visitLabel(label1); |
| Label label5 = new Label(); |
| methodVisitor.visitJumpInsn(GOTO, label5); |
| methodVisitor.visitLabel(label2); |
| methodVisitor.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[] {"java/lang/Throwable"}); |
| methodVisitor.visitVarInsn(ASTORE, 2); |
| methodVisitor.visitVarInsn(ALOAD, 0); |
| methodVisitor.visitVarInsn(ALOAD, 2); |
| methodVisitor.visitMethodInsn( |
| INVOKEVIRTUAL, "java/lang/Throwable", "addSuppressed", "(Ljava/lang/Throwable;)V", false); |
| methodVisitor.visitJumpInsn(GOTO, label5); |
| methodVisitor.visitLabel(label4); |
| methodVisitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null); |
| methodVisitor.visitVarInsn(ALOAD, 1); |
| methodVisitor.visitMethodInsn( |
| INVOKEINTERFACE, "java/lang/AutoCloseable", "close", "()V", true); |
| methodVisitor.visitLabel(label5); |
| methodVisitor.visitFrame(Opcodes.F_SAME, 0, null, 0, null); |
| methodVisitor.visitInsn(RETURN); |
| Label label6 = new Label(); |
| methodVisitor.visitLabel(label6); |
| methodVisitor.visitLocalVariable("x0", "Ljava/lang/Throwable;", null, label3, label6, 0); |
| methodVisitor.visitLocalVariable("x1", "Ljava/lang/AutoCloseable;", null, label3, label6, 1); |
| methodVisitor.visitMaxs(2, 3); |
| methodVisitor.visitEnd(); |
| } |
| classWriter.visitEnd(); |
| |
| return classWriter.toByteArray(); |
| } |
| } |
