org.springframework.asm.Opcodes Java Examples

@Override
public void visit(
		int version, int access, String name, String signature, @Nullable String supername, String[] interfaces) {

	this.className = ClassUtils.convertResourcePathToClassName(name);
	this.isInterface = ((access & Opcodes.ACC_INTERFACE) != 0);
	this.isAnnotation = ((access & Opcodes.ACC_ANNOTATION) != 0);
	this.isAbstract = ((access & Opcodes.ACC_ABSTRACT) != 0);
	this.isFinal = ((access & Opcodes.ACC_FINAL) != 0);
	if (supername != null && !this.isInterface) {
		this.superClassName = ClassUtils.convertResourcePathToClassName(supername);
	}
	this.interfaces = new String[interfaces.length];
	for (int i = 0; i < interfaces.length; i++) {
		this.interfaces[i] = ClassUtils.convertResourcePathToClassName(interfaces[i]);
	}
}
 

@Override
public void visit(
		int version, int access, String name, String signature, @Nullable String supername, String[] interfaces) {

	this.className = ClassUtils.convertResourcePathToClassName(name);
	this.isInterface = ((access & Opcodes.ACC_INTERFACE) != 0);
	this.isAnnotation = ((access & Opcodes.ACC_ANNOTATION) != 0);
	this.isAbstract = ((access & Opcodes.ACC_ABSTRACT) != 0);
	this.isFinal = ((access & Opcodes.ACC_FINAL) != 0);
	if (supername != null && !this.isInterface) {
		this.superClassName = ClassUtils.convertResourcePathToClassName(supername);
	}
	this.interfaces = new String[interfaces.length];
	for (int i = 0; i < interfaces.length; i++) {
		this.interfaces[i] = ClassUtils.convertResourcePathToClassName(interfaces[i]);
	}
}
 

public void visit(int version, int access, String name, String signature, String supername, String[] interfaces) {
    this.className = ClassUtils.convertResourcePathToClassName(name);
    this.isInterface = ((access & Opcodes.ACC_INTERFACE) != 0);
    this.isAbstract = ((access & Opcodes.ACC_ABSTRACT) != 0);
    this.isFinal = ((access & Opcodes.ACC_FINAL) != 0);
    if (supername != null) {
        this.superClassName = ClassUtils.convertResourcePathToClassName(supername);
    }
    this.interfaces = new String[interfaces.length];
    for (int i = 0; i < interfaces.length; i++) {
        this.interfaces[i] = ClassUtils.convertResourcePathToClassName(interfaces[i]);
    }
}
 

@Override
public void visit(int version, int access, String name, String signature, String supername, String[] interfaces) {
	this.className = ClassUtils.convertResourcePathToClassName(name);
	this.isInterface = ((access & Opcodes.ACC_INTERFACE) != 0);
	this.isAnnotation = ((access & Opcodes.ACC_ANNOTATION) != 0);
	this.isAbstract = ((access & Opcodes.ACC_ABSTRACT) != 0);
	this.isFinal = ((access & Opcodes.ACC_FINAL) != 0);
	if (supername != null && !this.isInterface) {
		this.superClassName = ClassUtils.convertResourcePathToClassName(supername);
	}
	this.interfaces = new String[interfaces.length];
	for (int i = 0; i < interfaces.length; i++) {
		this.interfaces[i] = ClassUtils.convertResourcePathToClassName(interfaces[i]);
	}
}
 

@Override
public void visitInnerClass(String name, String outerName, String innerName, int access) {
	if (outerName != null) {
		String fqName = ClassUtils.convertResourcePathToClassName(name);
		String fqOuterName = ClassUtils.convertResourcePathToClassName(outerName);
		if (this.className.equals(fqName)) {
			this.enclosingClassName = fqOuterName;
			this.independentInnerClass = ((access & Opcodes.ACC_STATIC) != 0);
		}
		else if (this.className.equals(fqOuterName)) {
			this.memberClassNames.add(fqName);
		}
	}
}
 

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
	// Skip bridge methods - we're only interested in original annotation-defining user methods.
	// On JDK 8, we'd otherwise run into double detection of the same annotated method...
	if ((access & Opcodes.ACC_BRIDGE) != 0) {
		return super.visitMethod(access, name, desc, signature, exceptions);
	}
	return new MethodMetadataReadingVisitor(name, access, getClassName(),
			Type.getReturnType(desc).getClassName(), this.classLoader, this.methodMetadataSet);
}
 

@Override
public void visitInnerClass(String name, @Nullable String outerName, String innerName, int access) {
	if (outerName != null) {
		String fqName = ClassUtils.convertResourcePathToClassName(name);
		String fqOuterName = ClassUtils.convertResourcePathToClassName(outerName);
		if (this.className.equals(fqName)) {
			this.enclosingClassName = fqOuterName;
			this.independentInnerClass = ((access & Opcodes.ACC_STATIC) != 0);
		}
		else if (this.className.equals(fqOuterName)) {
			this.memberClassNames.add(fqName);
		}
	}
}
 

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
	// Skip bridge methods - we're only interested in original annotation-defining user methods.
	// On JDK 8, we'd otherwise run into double detection of the same annotated method...
	if ((access & Opcodes.ACC_BRIDGE) != 0) {
		return super.visitMethod(access, name, desc, signature, exceptions);
	}
	return new MethodMetadataReadingVisitor(name, access, getClassName(),
			Type.getReturnType(desc).getClassName(), this.classLoader, this.methodMetadataSet);
}
 

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
	// Skip bridge methods - we're only interested in original annotation-defining user methods.
	// On JDK 8, we'd otherwise run into double detection of the same annotated method...
	if ((access & Opcodes.ACC_BRIDGE) != 0) {
		return super.visitMethod(access, name, desc, signature, exceptions);
	}
	return new MethodMetadataReadingVisitor(name, access, getClassName(),
			Type.getReturnType(desc).getClassName(), this.classLoader, this.methodMetadataSet);
}
 

@Override
public void visitInnerClass(String name, @Nullable String outerName, String innerName,
		int access) {
	if (outerName != null) {
		String className = toClassName(name);
		String outerClassName = toClassName(outerName);
		if (this.className.equals(className)) {
			this.enclosingClassName = outerClassName;
			this.independentInnerClass = ((access & Opcodes.ACC_STATIC) != 0);
		}
		else if (this.className.equals(outerClassName)) {
			this.memberClassNames.add(className);
		}
	}
}
 

@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
	// Skip bridge methods - we're only interested in original annotation-defining user methods.
	// On JDK 8, we'd otherwise run into double detection of the same annotated method...
	if ((access & Opcodes.ACC_BRIDGE) != 0) {
		return super.visitMethod(access, name, desc, signature, exceptions);
	}
	return new MethodMetadataReadingVisitor(name, access, getClassName(),
			Type.getReturnType(desc).getClassName(), this.classLoader, this.methodMetadataSet);
}
 

@Override
public void visit(int version, int access, String name, String signature, String supername, String[] interfaces) {
	this.className = ClassUtils.convertResourcePathToClassName(name);
	this.isInterface = ((access & Opcodes.ACC_INTERFACE) != 0);
	this.isAnnotation = ((access & Opcodes.ACC_ANNOTATION) != 0);
	this.isAbstract = ((access & Opcodes.ACC_ABSTRACT) != 0);
	this.isFinal = ((access & Opcodes.ACC_FINAL) != 0);
	if (supername != null && !this.isInterface) {
		this.superClassName = ClassUtils.convertResourcePathToClassName(supername);
	}
	this.interfaces = new String[interfaces.length];
	for (int i = 0; i < interfaces.length; i++) {
		this.interfaces[i] = ClassUtils.convertResourcePathToClassName(interfaces[i]);
	}
}
 

@Override
public void visitInnerClass(String name, String outerName, String innerName, int access) {
	if (outerName != null) {
		String fqName = ClassUtils.convertResourcePathToClassName(name);
		String fqOuterName = ClassUtils.convertResourcePathToClassName(outerName);
		if (this.className.equals(fqName)) {
			this.enclosingClassName = fqOuterName;
			this.independentInnerClass = ((access & Opcodes.ACC_STATIC) != 0);
		}
		else if (this.className.equals(fqOuterName)) {
			this.memberClassNames.add(fqName);
		}
	}
}
 

@Override
public void visitInnerClass(String name, @Nullable String outerName, String innerName, int access) {
	if (outerName != null) {
		String fqName = ClassUtils.convertResourcePathToClassName(name);
		String fqOuterName = ClassUtils.convertResourcePathToClassName(outerName);
		if (this.className.equals(fqName)) {
			this.enclosingClassName = fqOuterName;
			this.independentInnerClass = ((access & Opcodes.ACC_STATIC) != 0);
		}
		else if (this.className.equals(fqOuterName)) {
			this.memberClassNames.add(fqName);
		}
	}
}
 

@Override
public boolean isFinal() {
	return ((this.access & Opcodes.ACC_FINAL) != 0);
}
 

public void visitInnerClass(String name, String outerName, String innerName, int access) {
    if (outerName != null && this.className.equals(ClassUtils.convertResourcePathToClassName(name))) {
        this.enclosingClassName = ClassUtils.convertResourcePathToClassName(outerName);
        this.independentInnerClass = ((access & Opcodes.ACC_STATIC) != 0);
    }
}
 

private static boolean isSyntheticOrBridged(int access) {
	return (((access & Opcodes.ACC_SYNTHETIC) | (access & Opcodes.ACC_BRIDGE)) > 0);
}
 

private static boolean isStatic(int access) {
	return ((access & Opcodes.ACC_STATIC) > 0);
}
 

@Override
public boolean isOverridable() {
	return (!isStatic() && !isFinal() && ((this.access & Opcodes.ACC_PRIVATE) == 0));
}
 

@Override
public boolean isFinal() {
	return ((this.access & Opcodes.ACC_FINAL) != 0);
}
 

@Override
public boolean isAbstract() {
	return ((this.access & Opcodes.ACC_ABSTRACT) != 0);
}
 

@Override
public boolean isStatic() {
	return ((this.access & Opcodes.ACC_STATIC) != 0);
}
 

@Override
public boolean isOverridable() {
	return (!isStatic() && !isFinal() && ((this.access & Opcodes.ACC_PRIVATE) == 0));
}
 

@Override
public boolean isOverridable() {
	return (!isStatic() && !isFinal() && ((this.access & Opcodes.ACC_PRIVATE) == 0));
}
 

private static boolean isSyntheticOrBridged(int access) {
	return (((access & Opcodes.ACC_SYNTHETIC) | (access & Opcodes.ACC_BRIDGE)) > 0);
}
 

private static boolean isStatic(int access) {
	return ((access & Opcodes.ACC_STATIC) > 0);
}
 

@Override
public boolean isAbstract() {
	return ((this.access & Opcodes.ACC_ABSTRACT) != 0);
}
 

@Override
public boolean isStatic() {
	return ((this.access & Opcodes.ACC_STATIC) != 0);
}
 

@Override
public boolean isFinal() {
	return ((this.access & Opcodes.ACC_FINAL) != 0);
}
 

/**
 * 处理 map 的 copy
 * @param ce ClassEmitter
 * @param e CodeEmitter
 * @param sourceType sourceType
 * @param targetType targetType
 */
public void generateClassFormMap(ClassEmitter ce, CodeEmitter e, Type sourceType, Type targetType) {
	// 2018.12.27 by L.cm 支持链式 bean
	PropertyDescriptor[] setters = ReflectUtil.getBeanSetters(target);

	// 入口变量
	Local targetLocal = e.make_local();
	Local sourceLocal = e.make_local();
	e.load_arg(1);
	e.checkcast(targetType);
	e.store_local(targetLocal);
	e.load_arg(0);
	e.checkcast(sourceType);
	e.store_local(sourceLocal);
	Type mapBox = Type.getType(Object.class);

	for (PropertyDescriptor setter : setters) {
		String propName = setter.getName();

		// set 上有忽略的 注解
		CopyProperty targetIgnoreCopy = ReflectUtil.getAnnotation(target, propName, CopyProperty.class);
		if (targetIgnoreCopy != null) {
			if (targetIgnoreCopy.ignore()) {
				continue;
			}
			// 注解上的别名
			String aliasTargetPropName = targetIgnoreCopy.value();
			if (StringUtil.isNotBlank(aliasTargetPropName)) {
				propName = aliasTargetPropName;
			}
		}

		Method writeMethod = setter.getWriteMethod();
		MethodInfo write = ReflectUtils.getMethodInfo(writeMethod);
		Type setterType = write.getSignature().getArgumentTypes()[0];

		e.load_local(targetLocal);
		e.load_local(sourceLocal);

		e.push(propName);
		// 执行 map get
		e.invoke_interface(BEAN_MAP, BEAN_MAP_GET);
		// box 装箱，避免 array[] 数组问题
		e.box(mapBox);

		// 生成变量
		Local var = e.make_local();
		e.store_local(var);
		e.load_local(var);

		// 先判断 不为null，然后做类型判断
		Label l0 = e.make_label();
		e.ifnull(l0);
		EmitUtils.load_class(e, setterType);
		e.load_local(var);
		// ClassUtils.isAssignableValue(Integer.class, id)
		e.invoke_static(CLASS_UTILS, IS_ASSIGNABLE_VALUE, false);
		Label l1 = new Label();
		// 返回值，判断 链式 bean
		Class<?> returnType = writeMethod.getReturnType();
		if (useConverter) {
			e.if_jump(Opcodes.IFEQ, l1);
			e.load_local(targetLocal);
			e.load_local(var);
			e.unbox_or_zero(setterType);
			e.invoke(write);
			if (!returnType.equals(Void.TYPE)) {
				e.pop();
			}
			e.goTo(l0);
			e.visitLabel(l1);
			e.load_local(targetLocal);
			e.load_arg(2);
			e.load_local(var);
			EmitUtils.load_class(e, setterType);
			e.push(propName);
			e.invoke_interface(CONVERTER, CONVERT);
		} else {
			e.if_jump(Opcodes.IFEQ, l0);
			e.load_local(targetLocal);
			e.load_local(var);
		}
		e.unbox_or_zero(setterType);
		e.invoke(write);
		// 返回值，判断 链式 bean
		if (!returnType.equals(Void.TYPE)) {
			e.pop();
		}
		e.visitLabel(l0);
	}
	e.return_value();
	e.end_method();
	ce.end_class();
}