Package com.googlecode.d2j.tools.jar

Class InvocationWeaver

  • All Implemented Interfaces:
    org.objectweb.asm.Opcodes
    public class InvocationWeaver
extends BaseWeaver
implements org.objectweb.asm.Opcodes
    1. Replace class A by another class B, include superclass, new for 

         class Test1 extends A ...
     class Test2 implements A ...
     void amethod(A a) ...

    after 

         class Test1 extends B ...
     class Test2 extends B ...
     void amethod(B a) ...

    2. Replace method A to another method B, method B must be public static, and in either 'public static RET b(ARGs)' or 'public RET b(Invocation inv)' RET: same return type with method A or Object ARGs: if method A is static, ARGs is same with method A, if method A is non-static the ARGs is 'thiz, arguments in methodA' 

     public int a() {
     Test t = new Test();
     return t.test(1, 2);
 }

    after 

         // direct replace
     public int a(){
         Test t=new Test();
         return B(t,1,2);
     }
     // or by MethodInvocation
     public int a(){
         Test t=new Test();
         return test_$$$_A_(t,1,2)
     }
     // the replaced invoke method
     public static int test$$$_A_(Test t, int a, int b){
         MethodInvocation i=new MethodInvocation(t, new Object[]{a.b})
         return B(i).intValue();
     }
     // the callback if MethodInvocation.proceed() is invoked
     public static Object test$$$$_callback(Test t, Object[]args) {
        return box(t.test(args[0].intValue(),args[1].intValue()));
     }

    3. Replace Methods Implementations 

     public int test() {
         ...
 }

    after 

         public int test(){
          MethodInvocation i=new MethodInvocation(t, new Object[]{a.b})
          return B(i).intValue();
     }
     public int org_test(){
         ...
     }

    • Field Summary

      • Fields inherited from interface org.objectweb.asm.Opcodes

        AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V22, V9

    • Constructor Detail

      • InvocationWeaver

        public InvocationWeaver()

    • Method Detail

      • wave0

        public byte[] wave0​(byte[] data)

      • wave0

        public void wave0​(byte[] data,
                  org.objectweb.asm.ClassVisitor cv)

      • wrapper

        public org.objectweb.asm.ClassVisitor wrapper​(org.objectweb.asm.ClassVisitor cv)

      • wave

        public void wave​(java.nio.file.Path from,
                 java.nio.file.Path to)
          throws java.io.IOException
        Throws:
        java.io.IOException

      • buildInvocationClz

        public java.lang.String buildInvocationClz​(org.objectweb.asm.ClassVisitor cw)