| // 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; |
| |
| public class InliningWithoutPositionsTestSourceDump implements Opcodes { |
| |
| public enum Location { |
| MAIN(123), |
| FOO1(234), |
| BAR(345), |
| FOO2(456); |
| final int line; |
| |
| Location(int line) { |
| this.line = line; |
| } |
| }; |
| |
| /* |
| This generator creates the class 'InliningWithoutPositionsTestSource' with three methods, |
| 'main', calling 'foo', which is calling 'bar'. |
| |
| Depending on the mainPos, foo1Pos, barPos and foo2Pos parameters, we insert line numbers in |
| 'main', in 'foo' before calling 'bar' (marked foo1), in 'foo' after calling 'bar' (marked foo2) |
| and in 'bar'. The methods contain no other line numbers. |
| |
| The throwLocation parameter determines at which location will be an exception thrown. |
| |
| The generator code is based on the ASMifier dump of the following class: |
| |
| package com.android.tools.r8.debuginfo; |
| |
| public class InliningWithoutPositionsTestSource { |
| |
| private static void throwingBar() { |
| throw new RuntimeException("<BAR-exception>"); |
| } |
| |
| private static void printingBar() { |
| System.err.println("<in-BAR>"); |
| } |
| |
| private static void foo(boolean b) { |
| if (b) throw new RuntimeException("<FOO1-exception>"); |
| throwingBar(); |
| } |
| |
| private static void foo2() { |
| throwingBar(); |
| throw new RuntimeException("<FOO2-exception>"); |
| } |
| |
| public static void main(String[] args) { |
| foo(true); |
| } |
| } |
| */ |
| public static byte[] dump( |
| boolean mainPos, boolean foo1Pos, boolean barPos, boolean foo2Pos, Location throwLocation) { |
| ClassWriter cw = new ClassWriter(0); |
| FieldVisitor fv; |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit( |
| V1_8, |
| ACC_PUBLIC + ACC_SUPER, |
| "com/android/tools/r8/debuginfo/InliningWithoutPositionsTestSource", |
| null, |
| "java/lang/Object", |
| null); |
| |
| cw.visitSource("InliningWithoutPositionsTestSource.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/InliningWithoutPositionsTestSource;", |
| null, |
| l0, |
| l1, |
| 0); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| if (throwLocation == Location.BAR) { |
| mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "bar", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| if (barPos) { |
| mv.visitLineNumber(Location.BAR.line, l0); |
| } |
| mv.visitTypeInsn(NEW, "java/lang/RuntimeException"); |
| mv.visitInsn(DUP); |
| mv.visitLdcInsn("<BAR-exception>"); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); |
| mv.visitInsn(ATHROW); |
| mv.visitMaxs(3, 0); |
| mv.visitEnd(); |
| } else { |
| mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "bar", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| if (barPos) { |
| mv.visitLineNumber(Location.BAR.line, l0); |
| } |
| mv.visitFieldInsn(GETSTATIC, "java/lang/System", "err", "Ljava/io/PrintStream;"); |
| mv.visitLdcInsn("<in-BAR>"); |
| mv.visitMethodInsn( |
| INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V", false); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitInsn(RETURN); |
| mv.visitMaxs(2, 0); |
| mv.visitEnd(); |
| } |
| if (throwLocation == Location.FOO2) { |
| mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "foo", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| if (foo1Pos) { |
| mv.visitLineNumber(Location.FOO1.line, l0); |
| } |
| mv.visitMethodInsn( |
| INVOKESTATIC, |
| "com/android/tools/r8/debuginfo/InliningWithoutPositionsTestSource", |
| "bar", |
| "()V", |
| false); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| if (foo2Pos) { |
| mv.visitLineNumber(Location.FOO2.line, l1); |
| } |
| mv.visitTypeInsn(NEW, "java/lang/RuntimeException"); |
| mv.visitInsn(DUP); |
| mv.visitLdcInsn("<FOO2-exception>"); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); |
| mv.visitInsn(ATHROW); |
| mv.visitMaxs(3, 0); |
| mv.visitEnd(); |
| } else { |
| mv = cw.visitMethod(ACC_PRIVATE + ACC_STATIC, "foo", "(Z)V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| if (foo1Pos) { |
| mv.visitLineNumber(Location.FOO1.line, l0); |
| } |
| mv.visitVarInsn(ILOAD, 0); |
| Label l1 = new Label(); |
| mv.visitJumpInsn(IFEQ, l1); |
| mv.visitTypeInsn(NEW, "java/lang/RuntimeException"); |
| mv.visitInsn(DUP); |
| mv.visitLdcInsn("<FOO1-exception>"); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, "java/lang/RuntimeException", "<init>", "(Ljava/lang/String;)V", false); |
| mv.visitInsn(ATHROW); |
| mv.visitLabel(l1); |
| mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); |
| mv.visitMethodInsn( |
| INVOKESTATIC, |
| "com/android/tools/r8/debuginfo/InliningWithoutPositionsTestSource", |
| "bar", |
| "()V", |
| false); |
| Label l2 = new Label(); |
| mv.visitLabel(l2); |
| if (foo2Pos) { |
| mv.visitLineNumber(Location.FOO2.line, l2); |
| } |
| mv.visitInsn(RETURN); |
| Label l3 = new Label(); |
| mv.visitLabel(l3); |
| mv.visitLocalVariable("b", "Z", null, l0, l3, 0); |
| mv.visitMaxs(3, 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); |
| if (mainPos) { |
| mv.visitLineNumber(Location.MAIN.line, l0); |
| } |
| if (throwLocation == Location.FOO2) { |
| mv.visitMethodInsn( |
| INVOKESTATIC, |
| "com/android/tools/r8/debuginfo/InliningWithoutPositionsTestSource", |
| "foo", |
| "()V", |
| false); |
| } else { |
| mv.visitInsn(throwLocation == Location.FOO1 ? ICONST_1 : ICONST_0); |
| mv.visitMethodInsn( |
| INVOKESTATIC, |
| "com/android/tools/r8/debuginfo/InliningWithoutPositionsTestSource", |
| "foo", |
| "(Z)V", |
| false); |
| } |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitInsn(RETURN); |
| Label l2 = new Label(); |
| mv.visitLabel(l2); |
| mv.visitLocalVariable("args", "[Ljava/lang/String;", null, l0, l2, 0); |
| if (throwLocation == Location.FOO2) { |
| mv.visitMaxs(0, 1); |
| } else { |
| mv.visitMaxs(1, 1); |
| } |
| mv.visitEnd(); |
| } |
| |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |