How to use MaxLocalsMethodVisitor method of org.powermock.core.bytebuddy.MaxLocalsExtractor class

Best Powermock code snippet using org.powermock.core.bytebuddy.MaxLocalsExtractor.MaxLocalsMethodVisitor

Source:MaxLocalsExtractor.java Github

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...32 public MethodVisitor visitMethod(final int access, final String name, final String desc, final String signature,33 final String[] exceptions) {34 if (MethodDescription.CONSTRUCTOR_INTERNAL_NAME.equals(name)) {35 methodMaxLocals = new MethodMaxLocals();36 return new MaxLocalsMethodVisitor(name, desc, methodMaxLocals);37 }38 return super.visitMethod(access, name, desc, signature, exceptions);39 }40 41 public MethodMaxLocals getMethods() {42 return methodMaxLocals;43 }44 45 private static class MaxLocalsMethodVisitor extends MethodVisitor {46 47 private final String name;48 private final String signature;49 private final MethodMaxLocals methodMaxLocals;50 private int maxLocals;51 52 private MaxLocalsMethodVisitor(final String name, final String signature,53 final MethodMaxLocals methodMaxLocals) {54 super(Opcodes.ASM5);55 this.name = name;56 this.signature = signature;57 this.methodMaxLocals = methodMaxLocals;58 }59 60 @Override61 public void visitMaxs(final int maxStack, final int maxLocals) {62 this.maxLocals = maxLocals;63 super.visitMaxs(maxStack, maxLocals);64 }65 66 @Override...

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MaxLocalsMethodVisitor

Using AI Code Generation

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1 private static int getMaxLocals(final Method method) {2 try {3 final MethodVisitor methodVisitor = new MaxLocalsMethodVisitor(Opcodes.ASM5);4 final ClassReader classReader = new ClassReader(method.getDeclaringClass().getName());5 classReader.accept(new ClassVisitor(Opcodes.ASM5) {6 public MethodVisitor visitMethod(final int access, final String name, final String desc, final String signature, final String[] exceptions) {7 if (name.equals(method.getName()) && desc.equals(Type.getMethodDescriptor(method))) {8 return methodVisitor;9 }10 return super.visitMethod(access, name, desc, signature, exceptions);11 }12 }, ClassReader.SKIP_FRAMES);13 return methodVisitor.getMaxLocals();14 } catch (IOException e) {15 throw new RuntimeException(e);16 }17 }18}19 private static int getMaxLocals(final Method method) {20 try {21 final MethodVisitor methodVisitor = new MaxLocalsMethodVisitor(Opcodes.ASM5);22 final ClassReader classReader = new ClassReader(method.getDeclaringClass().getName());23 classReader.accept(new ClassVisitor(Opcodes.ASM5) {24 public MethodVisitor visitMethod(final int access, final String name, final String desc, final String signature, final String[] exceptions) {25 if (name.equals(method.getName()) && desc.equals(Type.getMethodDescriptor(method))) {26 return methodVisitor;27 }28 return super.visitMethod(access, name, desc, signature, exceptions);29 }30 }, ClassReader.SKIP_FRAMES);31 return methodVisitor.getMaxLocals();32 } catch (IOException e) {33 throw new RuntimeException(e);34 }35 }36Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgumentException: Cannot find method org.powermock.core.bytebuddy.MaxLocalsMethodVisitor.visitMaxs(int, int) in org.powermock.core.bytebuddy.MaxLocalsMethodVisitor

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MaxLocalsMethodVisitor

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1public class MaxLocalsMethodVisitor extends MethodVisitor {2 private int maxLocals = 0;3 public MaxLocalsMethodVisitor() {4 super(Opcodes.ASM9);5 }6 public int getMaxLocals() {7 return maxLocals;8 }9 public void visitLocalVariable(String name, String descriptor, String signature, Label start, Label end, int index) {10 maxLocals = Math.max(index + 1, maxLocals);11 }12}13public class MaxStackMethodVisitor extends MethodVisitor {14 private int maxStack = 0;15 public MaxStackMethodVisitor() {16 super(Opcodes.ASM9);17 }18 public int getMaxStack() {19 return maxStack;20 }21 public void visitMaxs(int maxStack, int maxLocals) {22 this.maxStack = maxStack;23 }24}25public class MethodVisitorFactory {26 public static MethodVisitor createMethodVisitor(final ClassVisitor classVisitor, final int access, final String name, final String desc, final String signature, final String[] exceptions) {27 return classVisitor.visitMethod(access, name, desc, signature, exceptions);28 }29 public static MethodVisitor createMethodVisitor(final ClassVisitor classVisitor, final int access, final String name, final String desc, final String signature, final String[] exceptions, final MethodVisitor methodVisitor) {30 return classVisitor.visitMethod(access, name, desc, signature, exceptions);31 }32}33public class MethodVisitorFactory {34 public static MethodVisitor createMethodVisitor(final ClassVisitor classVisitor, final int access, final String name, final String desc, final String signature, final String[] exceptions) {35 return classVisitor.visitMethod(access, name, desc, signature, exceptions);36 }37 public static MethodVisitor createMethodVisitor(final ClassVisitor classVisitor, final int access, final String name, final String desc, final String signature, final String[] exceptions, final MethodVisitor methodVisitor) {

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MaxLocalsMethodVisitor

Using AI Code Generation

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1public class MaxLocalsExtractorTest {2 private static final String CLASS_NAME = "org/powermock/core/bytebuddy/MaxLocalsExtractorTest";3 private static final String METHOD_NAME = "test";4 private static final String METHOD_DESCRIPTOR = "()V";5 private static final String METHOD_SIGNATURE = null;6 private static final String[] EXCEPTIONS = new String[0];7 private static final String[] INTERFACES = new String[0];8 private static final String SUPER_CLASS = "java/lang/Object";9 private static final String[] INTERFACES_OF_SUPER_CLASS = new String[0];10 private static final String[] ANNOTATIONS = new String[0];11 public void testMaxLocalsExtractor() throws Exception {12 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);13 cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, CLASS_NAME, null, SUPER_CLASS, INTERFACES);14 MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, METHOD_NAME, METHOD_DESCRIPTOR, METHOD_SIGNATURE, EXCEPTIONS);15 mv.visitCode();16 mv.visitInsn(Opcodes.RETURN);17 mv.visitMaxs(0, 0);18 mv.visitEnd();19 cw.visitEnd();20 ClassReader cr = new ClassReader(cw.toByteArray());21 ClassNode cn = new ClassNode();22 cr.accept(cn, ClassReader.SKIP_FRAMES);23 MethodNode mn = (MethodNode) cn.methods.get(0);24 MethodVisitor mv2 = new MaxLocalsMethodVisitor(mn.access, mn.desc, mn.signature, mn.exceptions.toArray(new String[mn.exceptions.size()]), mn);25 mn.accept(mv2);26 Assert.assertEquals(1, mn.maxLocals);27 }28}29public class MaxLocalsExtractorTest {30 public void test() {31 }32}

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MaxLocalsMethodVisitor

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1public class MaxLocalsExtractorTest {2 private static final String CLASS_NAME = "org.powermock.core.bytebuddy.MaxLocalsExtractorTest";3 private static final String METHOD_NAME = "method";4 private static final String METHOD_DESC = "()V";5 private static final String METHOD_SIGNATURE = null;6 private static final String[] EXCEPTIONS = new String[0];7 private static final int MAX_LOCALS = 2;8 public void testMaxLocalsExtractor() throws Exception {9 ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);10 cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, CLASS_NAME, null, "java/lang/Object", null);11 MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC, METHOD_NAME,12 METHOD_DESC, METHOD_SIGNATURE, EXCEPTIONS);13 mv.visitCode();14 mv.visitIntInsn(Opcodes.BIPUSH, 1);15 mv.visitVarInsn(Opcodes.ISTORE, 0);16 mv.visitIntInsn(Opcodes.BIPUSH, 2);17 mv.visitVarInsn(Opcodes.ISTORE, 1);18 mv.visitInsn(Opcodes.RETURN);19 mv.visitMaxs(0, 0);20 mv.visitEnd();21 cw.visitEnd();22 Class<?> clazz = new ByteBuddy()23 .redefine(MaxLocalsExtractorTest.class)24 .visit(new MaxLocalsExtractor(CLASS_NAME, METHOD_NAME, METHOD_DESC, METHOD_SIGNATURE, EXCEPTIONS))25 .make()26 .load(getClass().getClassLoader())27 .getLoaded();28 Method method = clazz.getMethod(METHOD_NAME);29 Assert.assertEquals(MAX_LOCALS, method.getAnnotation(MaxLocals.class).value());30 }31}32public class MaxLocalsExtractorTest {33 private static final String CLASS_NAME = "org.powermock.core.bytebuddy.MaxLocalsExtractorTest";34 private static final String METHOD_NAME = "method";35 private static final String METHOD_DESC = "()V";36 private static final String METHOD_SIGNATURE = null;37 private static final String[] EXCEPTIONS = new String[0];38 private static final int MAX_LOCALS = 2;

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