heap

package
v1.7.1 Latest Latest
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 Go to latest Published: Sep 18, 2020 License: Apache-2.0 Imports: 5 Imported by: 0

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Constants

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const (
	// public
	ACC_PUBLIC = 0x0001
	// private
	ACC_PRIVATE = 0x0002
	// protected
	ACC_PROTECTED = 0x0004
	// static
	ACC_STATIC = 0x0008
	// final
	ACC_FINAL = 0x0010
	// synchronized
	ACC_SYNCHRONIZED = 0x0020
	// volatile
	ACC_VOLATILE = 0x0020
	// super
	ACC_SUPER = 0x0020
	// bridge
	ACC_BRIDGE = 0x0040
	// transient
	ACC_TRANSIENT = 0x0040
	// varargs
	ACC_VARARGS = 0x0080
	// native
	ACC_NATIVE = 0x0100
	// interface
	ACC_INTERFACE = 0x0200
	// abstract
	ACC_ABSTRACT = 0x0400
	// strict
	ACC_STRICT = 0x0800
	// synthetic
	ACC_SYNTHETIC = 0x1000
	// annotation
	ACC_ANNOTATION = 0x2000
	// enum
	ACC_ENUM = 0x4000
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Class 

type Class struct {
	// contains filtered or unexported fields
}

func (*Class) ConstantPool 

func (self *Class) ConstantPool() *ConstantPool

func (*Class) GetMainMethod 

func (self *Class) GetMainMethod() *Method

func (*Class) GetPackageName added in v1.7.0 

func (self *Class) GetPackageName() string

func (Class) IsAbstract 

func (self Class) IsAbstract() bool

func (*Class) IsImplements added in v1.7.0 

func (self *Class) IsImplements(class *Class) bool

func (*Class) IsInterface 

func (self *Class) IsInterface() bool

func (*Class) IsPrivate 

func (self *Class) IsPrivate() bool

func (*Class) IsProtected 

func (self *Class) IsProtected() bool

func (*Class) IsPublic 

func (self *Class) IsPublic() bool

func (*Class) IsSubClassOf added in v1.7.0 

func (self *Class) IsSubClassOf(class *Class) bool

判断本类是否是参数class的子类

func (*Class) IsSuper added in v1.7.0 

func (self *Class) IsSuper() bool

判断方法的ACC_SUPER是否有被标记

func (*Class) IsSuperClassOf added in v1.7.0 

func (self *Class) IsSuperClassOf(class *Class) bool

判断本类是否是参数class的父类

func (*Class) Name added in v1.7.0 

func (self *Class) Name() string

func (*Class) NewObject 

func (self *Class) NewObject() *Object

func (Class) StaticVars 

func (self Class) StaticVars() Slots

func (*Class) SuperClass added in v1.7.0 

func (self *Class) SuperClass() *Class

type ClassLoader 

type ClassLoader struct {
	// contains filtered or unexported fields
}

类加载器 类加载器依赖ClassPath来搜寻和读取class文件

func NewClassLoader 

func NewClassLoader(cp *classpath.Classpath, verboseFlag bool) *ClassLoader

创建一个加载器实例

func (*ClassLoader) LoadClass 

func (self *ClassLoader) LoadClass(name string) *Class

在classMap中根据name查询类 然后将将类数据加载到方法区中

type ClassMember 

type ClassMember struct {
	// contains filtered or unexported fields
}

func (*ClassMember) IsPrivate 

func (self *ClassMember) IsPrivate() bool

func (*ClassMember) IsProtected 

func (self *ClassMember) IsProtected() bool

func (*ClassMember) IsPublic 

func (self *ClassMember) IsPublic() bool

type ClassRef 

type ClassRef struct {
	SymRef
}

type Constant 

type Constant interface {
}

type ConstantPool 

type ConstantPool struct {
	// contains filtered or unexported fields
}

运行时常量池

func (*ConstantPool) GetConstant 

func (self *ConstantPool) GetConstant(index uint) Constant

根据索引返回常量

func (*ConstantPool) Name 

func (self *ConstantPool) Name() string

type Field 

type Field struct {
	ClassMember
	// contains filtered or unexported fields
}

实例字段

func (Field) Class 

func (self Field) Class() *Class

func (Field) ConstValueIndex 

func (self Field) ConstValueIndex() uint

func (Field) Descriptor 

func (self Field) Descriptor() string

func (Field) IsFinal 

func (self Field) IsFinal() bool

func (Field) IsLongOrDouble 

func (self Field) IsLongOrDouble() bool

判断描述符是否属于J或者D，J -> long,D -> double 基本类型中，除了long的定义奇特外，其他都是基于首字母

func (Field) IsStatic 

func (self Field) IsStatic() bool

func (Field) SlotId 

func (self Field) SlotId() uint

type FieldRef 

type FieldRef struct {
	MemberRef
	// contains filtered or unexported fields
}

func (FieldRef) IsStatic 

func (self FieldRef) IsStatic() bool

func (*FieldRef) ResolvedField 

func (self *FieldRef) ResolvedField() *Field

* 字段符号引用解析

type InterfaceMethodRef 

type InterfaceMethodRef struct {
	MemberRef
	// contains filtered or unexported fields
}

接口方法的符号引用

func (InterfaceMethodRef) Descriptor added in v1.7.0 

func (self InterfaceMethodRef) Descriptor() string

func (InterfaceMethodRef) Name added in v1.7.0 

func (self InterfaceMethodRef) Name() string

func (*InterfaceMethodRef) ResolvedInterfaceMethod added in v1.7.0 

func (self *InterfaceMethodRef) ResolvedInterfaceMethod() *Method

解析接口方法

type MemberRef 

type MemberRef struct {
	SymRef
	// contains filtered or unexported fields
}

type Method 

type Method struct {
	ClassMember
	// contains filtered or unexported fields
}

func LookupMethodInClass added in v1.7.0 

func LookupMethodInClass(class *Class, name, descriptor string) *Method

在类和父类中搜寻指定的方法

func (*Method) ArgSlotCount added in v1.7.0 

func (self *Method) ArgSlotCount() uint

func (*Method) Class 

func (self *Method) Class() *Class

func (*Method) Code 

func (self *Method) Code() []byte

func (Method) Descriptor added in v1.7.0 

func (self Method) Descriptor() string

func (Method) IsAbstract added in v1.7.0 

func (self Method) IsAbstract() bool

func (Method) IsStatic 

func (self Method) IsStatic() bool

func (Method) MaxLocals 

func (self Method) MaxLocals() uint16

func (Method) MaxStack 

func (self Method) MaxStack() uint16

func (Method) MethodDescriptor added in v1.7.0 

func (self Method) MethodDescriptor() string

func (Method) Name 

func (self Method) Name() string

type MethodDescriptor added in v1.7.0 

type MethodDescriptor struct {
	ParameterTypes []TypeDescriptor
	ReturnType     TypeDescriptor
}

方法的描述符 参考点有两个： 1 方法参数类型与数量 2 返回类型

虽然在虚拟机层面返回类型是可以作为方法的特征之一 但是在java中，返回类型不作为方法重载的特征之一。 原因可能是因为方法即使有返回值，调用者也可以不接收方法的返回值，这会导致编译器无法根据返回类型作为判断依据

type MethodDescriptorParser added in v1.7.0 

type MethodDescriptorParser struct {
	// contains filtered or unexported fields
}

type MethodRef 

type MethodRef struct {
	MemberRef
	// contains filtered or unexported fields
}

func (MethodRef) Descriptor 

func (self MethodRef) Descriptor() string

func (MethodRef) Name 

func (self MethodRef) Name() string

func (*MethodRef) ResolvedMethod added in v1.7.0 

func (self *MethodRef) ResolvedMethod() *Method

解析非接口方法

type Object 

type Object struct {
	// contains filtered or unexported fields
}

func (Object) Class added in v1.7.0 

func (self Object) Class() *Class

func (*Object) Fields 

func (self *Object) Fields() Slots

func (*Object) IsInstanceOf 

func (self *Object) IsInstanceOf(class *Class) bool

type Slot 

type Slot struct {
	// contains filtered or unexported fields
}

type Slots 

type Slots []Slot

func (Slots) GetDouble 

func (self Slots) GetDouble(index uint) float64

func (Slots) GetFloat 

func (self Slots) GetFloat(index uint) float32

func (Slots) GetInt 

func (self Slots) GetInt(index uint) int32

func (Slots) GetLong 

func (self Slots) GetLong(index uint) int64

func (Slots) GetRef 

func (self Slots) GetRef(index uint) *Object

func (Slots) SetDouble 

func (self Slots) SetDouble(index uint, val float64)

double consumes two slots

func (Slots) SetFloat 

func (self Slots) SetFloat(index uint, val float32)

func (Slots) SetInt 

func (self Slots) SetInt(index uint, val int32)

func (Slots) SetLong 

func (self Slots) SetLong(index uint, val int64)

long consumes two slots

func (Slots) SetRef 

func (self Slots) SetRef(index uint, ref *Object)

type SymRef 

type SymRef struct {
	// contains filtered or unexported fields
}

符号引用 cp,className,class是所有符号引用通用的字段 利用继承的方式来进行定制

func (*SymRef) ResolvedClass 

func (self *SymRef) ResolvedClass() *Class

解析符号引用 如果类还没有被解析过，先解析类的符号引用 如果类已经被解析过，直接返回类的指针

type TypeDescriptor added in v1.7.0 

type TypeDescriptor string

func (TypeDescriptor) IsArrayType added in v1.7.0 

func (td TypeDescriptor) IsArrayType() bool

数组类型

func (TypeDescriptor) IsBaseType added in v1.7.0 

func (td TypeDescriptor) IsBaseType() bool

基本类型

func (TypeDescriptor) IsLongOrDouble added in v1.7.0 

func (td TypeDescriptor) IsLongOrDouble() bool

long或者double类型

func (TypeDescriptor) IsObjectType added in v1.7.0 

func (td TypeDescriptor) IsObjectType() bool

对象类型

func (TypeDescriptor) IsVoidType added in v1.7.0 

func (td TypeDescriptor) IsVoidType() bool

void类型

Source Files

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