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+// ASM: a very small and fast Java bytecode manipulation framework
+// Copyright (c) 2000-2011 INRIA, France Telecom
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the copyright holders nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+// THE POSSIBILITY OF SUCH DAMAGE.
+package org.objectweb.asm.commons;
+
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.function.Executable;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+import org.objectweb.asm.test.AsmTest;
+import org.objectweb.asm.test.ClassFile;
+import org.objectweb.asm.tree.MethodNode;
+
+/**
+ * Unit tests forĀ {@link LocalVariablesSorter}.
+ *
+ * @author Eric Bruneton
+ */
+class LocalVariablesSorterTest extends AsmTest {
+
+ @Test
+ void testConstructor() {
+ MethodNode methodNode = new MethodNode();
+
+ assertDoesNotThrow(() -> new LocalVariablesSorter(Opcodes.ACC_PUBLIC, "()V", methodNode));
+ assertThrows(
+ IllegalStateException.class,
+ () -> new LocalVariablesSorter(Opcodes.ACC_PUBLIC, "()V", methodNode) {});
+ }
+
+ @Test
+ void testVisitFrame_emptyFrame() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_PUBLIC, "()V", new MethodNode());
+
+ Executable visitFrame = () -> localVariablesSorter.visitFrame(Opcodes.F_NEW, 0, null, 0, null);
+
+ assertDoesNotThrow(visitFrame);
+ }
+
+ @Test
+ void testVisitFrame_invalidFrameType() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_PUBLIC, "()V", new MethodNode());
+
+ Executable visitFrame = () -> localVariablesSorter.visitFrame(Opcodes.F_FULL, 0, null, 0, null);
+
+ Exception exception = assertThrows(IllegalArgumentException.class, visitFrame);
+ assertEquals(
+ "LocalVariablesSorter only accepts expanded frames (see ClassReader.EXPAND_FRAMES)",
+ exception.getMessage());
+ }
+
+ @Test
+ void testNewLocal_boolean() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.BOOLEAN_TYPE);
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_byte() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.BYTE_TYPE);
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_char() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.CHAR_TYPE);
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_short() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.SHORT_TYPE);
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_int() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.INT_TYPE);
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_float() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.FLOAT_TYPE);
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_long() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.LONG_TYPE);
+ assertEquals(2, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_double() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.DOUBLE_TYPE);
+
+ assertEquals(2, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_object() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.getObjectType("pkg/Class"));
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @Test
+ void testNewLocal_array() {
+ LocalVariablesSorter localVariablesSorter =
+ new LocalVariablesSorter(Opcodes.ACC_STATIC, "()V", new MethodNode());
+
+ localVariablesSorter.newLocal(Type.getType("[I"));
+
+ assertEquals(1, localVariablesSorter.nextLocal);
+ }
+
+ @ParameterizedTest
+ @MethodSource(ALL_CLASSES_AND_ALL_APIS)
+ void testAllMethods_precompiledClass(
+ final PrecompiledClass classParameter, final Api apiParameter) {
+ ClassReader classReader = new ClassReader(classParameter.getBytes());
+ ClassWriter classWriter = new ClassWriter(0);
+ ClassVisitor localVariablesSorter =
+ new LocalVariablesSorterClassAdapter(apiParameter.value(), classWriter);
+
+ Executable accept = () -> classReader.accept(localVariablesSorter, ClassReader.EXPAND_FRAMES);
+
+ if (classParameter.isMoreRecentThan(apiParameter)) {
+ Exception exception = assertThrows(UnsupportedOperationException.class, accept);
+ assertTrue(exception.getMessage().matches(UNSUPPORTED_OPERATION_MESSAGE_PATTERN));
+ } else {
+ assertDoesNotThrow(accept);
+ Executable newInstance = () -> new ClassFile(classWriter.toByteArray()).newInstance();
+ if (classParameter.isNotCompatibleWithCurrentJdk()) {
+ assertThrows(UnsupportedClassVersionError.class, newInstance);
+ } else {
+ assertDoesNotThrow(newInstance);
+ }
+ }
+ }
+
+ @Test
+ void testAllMethods_issue317586() throws FileNotFoundException, IOException {
+ ClassReader classReader =
+ new ClassReader(Files.newInputStream(Paths.get("src/test/resources/Issue317586.class")));
+ ClassWriter classWriter = new ClassWriter(0);
+ ClassVisitor localVariablesSorter =
+ new LocalVariablesSorterClassAdapter(/* latest */ Opcodes.ASM10_EXPERIMENTAL, classWriter);
+
+ classReader.accept(localVariablesSorter, ClassReader.EXPAND_FRAMES);
+
+ assertDoesNotThrow(() -> new ClassFile(classWriter.toByteArray()).newInstance());
+ }
+
+ static class LocalVariablesSorterClassAdapter extends ClassVisitor {
+
+ LocalVariablesSorterClassAdapter(final int api, final ClassVisitor classVisitor) {
+ super(api, classVisitor);
+ }
+
+ @Override
+ public MethodVisitor visitMethod(
+ final int access,
+ final String name,
+ final String descriptor,
+ final String signature,
+ final String[] exceptions) {
+ MethodVisitor methodVisitor =
+ super.visitMethod(access, name, descriptor, signature, exceptions);
+ return new LocalVariablesSorter(api, access, descriptor, methodVisitor) {};
+ }
+ }
+}