| // Copyright (c) 2018, 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. |
| |
| package com.android.tools.r8.debuginfo; |
| |
| 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; |
| |
| /* |
| Generated from the source code below, line numbers removed, except for the false branch, |
| which is set to FALSE_BRANCH_LINE_NUMBER. |
| |
| package com.android.tools.r8.debuginfo; |
| |
| public class PreamblePositionTestSource { |
| public static void main(String[] args) { |
| System.err.println("<first-line>"); |
| if (args.length == 0) { |
| throw new RuntimeException("<true-branch-exception>"); |
| } else { |
| throw new RuntimeException("<false-branch-exception>"); |
| } |
| } |
| } |
| */ |
| |
| public class PreamblePositionTestSourceDump implements Opcodes { |
| |
| static final int FALSE_BRANCH_LINE_NUMBER = 123; |
| |
| public static byte[] dump() { |
| |
| ClassWriter cw = new ClassWriter(0); |
| FieldVisitor fv; |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit( |
| V1_8, |
| ACC_PUBLIC + ACC_SUPER, |
| "com/android/tools/r8/debuginfo/PreamblePositionTestSource", |
| null, |
| "java/lang/Object", |
| null); |
| |
| cw.visitSource("PreamblePositionTestSource.java", null); |
| |
| { |
| mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| mv.visitInsn(RETURN); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitLocalVariable( |
| "this", "Lcom/android/tools/r8/debuginfo/PreamblePositionTestSource;", null, l0, l1, 0); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitFieldInsn(GETSTATIC, "java/lang/System", "err", "Ljava/io/PrintStream;"); |
| mv.visitLdcInsn("<first-line>"); |
| mv.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitInsn(ARRAYLENGTH); |
| Label l2 = new Label(); |
| mv.visitJumpInsn(IFNE, l2); |
| Label l3 = new Label(); |
| mv.visitLabel(l3); |
| mv.visitTypeInsn(NEW, "java/lang/RuntimeException"); |
| mv.visitInsn(DUP); |
| mv.visitLdcInsn("<true-branch-exception>"); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); |
| mv.visitInsn(ATHROW); |
| mv.visitLabel(l2); |
| mv.visitLineNumber(FALSE_BRANCH_LINE_NUMBER, l2); |
| mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); |
| mv.visitTypeInsn(NEW, "java/lang/RuntimeException"); |
| mv.visitInsn(DUP); |
| mv.visitLdcInsn("<false-branch-exception>"); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); |
| mv.visitInsn(ATHROW); |
| Label l4 = new Label(); |
| mv.visitLabel(l4); |
| mv.visitLocalVariable("args", "[Ljava/lang/String;", null, l0, l4, 0); |
| mv.visitMaxs(3, 1); |
| mv.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |