com.alibaba.fastjson.asm

类 MethodWriter

java.lang.Object

com.alibaba.fastjson.asm.MethodWriter

所有已实现的接口:

MethodVisitor

public class MethodWriter
extends Object
implements MethodVisitor

作者:

Eric Bruneton, Eugene Kuleshov

构造器概要

构造器

构造器和说明
MethodWriter(ClassWriter cw, int access, String name, String desc, String signature, String[] exceptions)

方法概要

限定符和类型	方法和说明
void	visitEnd() Visits the end of the method.
void	visitFieldInsn(int opcode, String owner, String name, String desc) Visits a field instruction.
void	visitIincInsn(int var, int increment) Visits an IINC instruction.
void	visitInsn(int opcode) Visits a zero operand instruction.
void	visitIntInsn(int opcode, int operand)
void	visitJumpInsn(int opcode, Label label) Visits a jump instruction.
void	visitLabel(Label label) Visits a label.
void	visitLdcInsn(Object cst) Visits a LDC instruction.
void	visitMaxs(int maxStack, int maxLocals) Visits the maximum stack size and the maximum number of local variables of the method.
void	visitMethodInsn(int opcode, String owner, String name, String desc)
void	visitTypeInsn(int opcode, String type) Visits a type instruction.
void	visitVarInsn(int opcode, int var) Visits a local variable instruction.

从类继承的方法 java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

MethodWriter

public MethodWriter(ClassWriter cw,
                    int access,
                    String name,
                    String desc,
                    String signature,
                    String[] exceptions)

方法详细资料

visitInsn

public void visitInsn(int opcode)

从接口复制的说明: MethodVisitor

Visits a zero operand instruction.

指定者:

visitInsn 在接口中 MethodVisitor

参数:

opcode - the opcode of the instruction to be visited. This opcode is either NOP, ACONST_NULL, ICONST_M1, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, LCONST_0, LCONST_1, FCONST_0, FCONST_1, FCONST_2, DCONST_0, DCONST_1, IALOAD, LALOAD, FALOAD, DALOAD, AALOAD, BALOAD, CALOAD, SALOAD, IASTORE, LASTORE, FASTORE, DASTORE, AASTORE, BASTORE, CASTORE, SASTORE, POP, POP2, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, SWAP, IADD, LADD, FADD, DADD, ISUB, LSUB, FSUB, DSUB, IMUL, LMUL, FMUL, DMUL, IDIV, LDIV, FDIV, DDIV, IREM, LREM, FREM, DREM, INEG, LNEG, FNEG, DNEG, ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR, IAND, LAND, IOR, LOR, IXOR, LXOR, I2L, I2F, I2D, L2I, L2F, L2D, F2I, F2L, F2D, D2I, D2L, D2F, I2B, I2C, I2S, LCMP, FCMPL, FCMPG, DCMPL, DCMPG, IRETURN, LRETURN, FRETURN, DRETURN, ARETURN, RETURN, ARRAYLENGTH, ATHROW, MONITORENTER, or MONITOREXIT.

visitIntInsn

public void visitIntInsn(int opcode,
                         int operand)

指定者:

visitIntInsn 在接口中 MethodVisitor

visitVarInsn

public void visitVarInsn(int opcode,
                         int var)

从接口复制的说明: MethodVisitor

Visits a local variable instruction. A local variable instruction is an instruction that loads or stores the value of a local variable.

指定者:

visitVarInsn 在接口中 MethodVisitor

参数:

opcode - the opcode of the local variable instruction to be visited. This opcode is either ILOAD, LLOAD, FLOAD, DLOAD, ALOAD, ISTORE, LSTORE, FSTORE, DSTORE, ASTORE or RET.

var - the operand of the instruction to be visited. This operand is the index of a local variable.

visitTypeInsn

public void visitTypeInsn(int opcode,
                          String type)

从接口复制的说明: MethodVisitor

Visits a type instruction. A type instruction is an instruction that takes the internal name of a class as parameter.

指定者:

visitTypeInsn 在接口中 MethodVisitor

参数:

opcode - the opcode of the type instruction to be visited. This opcode is either NEW, ANEWARRAY, CHECKCAST or INSTANCEOF.

type - the operand of the instruction to be visited. This operand must be the internal name of an object or array class (see getInternalName).

visitFieldInsn

public void visitFieldInsn(int opcode,
                           String owner,
                           String name,
                           String desc)

从接口复制的说明: MethodVisitor

Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object.

指定者:

visitFieldInsn 在接口中 MethodVisitor

参数:

opcode - the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD.

owner - the internal name of the field's owner class (see getInternalName).

name - the field's name.

desc - the field's descriptor (see Type).

visitMethodInsn

public void visitMethodInsn(int opcode,
                            String owner,
                            String name,
                            String desc)

指定者:

visitMethodInsn 在接口中 MethodVisitor

visitJumpInsn

public void visitJumpInsn(int opcode,
                          Label label)

从接口复制的说明: MethodVisitor

Visits a jump instruction. A jump instruction is an instruction that may jump to another instruction.

指定者:

visitJumpInsn 在接口中 MethodVisitor

参数:

opcode - the opcode of the type instruction to be visited. This opcode is either IFEQ, IFNE, IFLT, IFGE, IFGT, IFLE, IF_ICMPEQ, IF_ICMPNE, IF_ICMPLT, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ACMPEQ, IF_ACMPNE, GOTO, JSR, IFNULL or IFNONNULL.

label - the operand of the instruction to be visited. This operand is a label that designates the instruction to which the jump instruction may jump.

visitLabel

public void visitLabel(Label label)

从接口复制的说明: MethodVisitor

Visits a label. A label designates the instruction that will be visited just after it.

指定者:

visitLabel 在接口中 MethodVisitor

参数:

label - a Label object.

visitLdcInsn

public void visitLdcInsn(Object cst)

从接口复制的说明: MethodVisitor

Visits a LDC instruction.

指定者:

visitLdcInsn 在接口中 MethodVisitor

参数:

cst - the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double a String (or a Type for .class constants, for classes whose version is 49.0 or more).

visitIincInsn

public void visitIincInsn(int var,
                          int increment)

从接口复制的说明: MethodVisitor

Visits an IINC instruction.

指定者:

visitIincInsn 在接口中 MethodVisitor

参数:

var - index of the local variable to be incremented.

increment - amount to increment the local variable by.

visitMaxs

public void visitMaxs(int maxStack,
                      int maxLocals)

从接口复制的说明: MethodVisitor

Visits the maximum stack size and the maximum number of local variables of the method.

指定者:

visitMaxs 在接口中 MethodVisitor

参数:

maxStack - maximum stack size of the method.

maxLocals - maximum number of local variables for the method.

visitEnd

public void visitEnd()

从接口复制的说明: MethodVisitor

Visits the end of the method. This method, which is the last one to be called, is used to inform the visitor that all the annotations and attributes of the method have been visited.

指定者:

visitEnd 在接口中 MethodVisitor