Class CodeSizeEvaluator

    • Constructor Detail

      • CodeSizeEvaluator

        public CodeSizeEvaluator​(MethodVisitor methodVisitor)
      • CodeSizeEvaluator

        protected CodeSizeEvaluator​(int api,
                                    MethodVisitor methodVisitor)
    • Method Detail

      • getMinSize

        public int getMinSize()
      • getMaxSize

        public int getMaxSize()
      • visitInsn

        public void visitInsn​(int opcode)
        Description copied from class: MethodVisitor
        Visits a zero operand instruction.
        Overrides:
        visitInsn in class MethodVisitor
        Parameters:
        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.
      • visitVarInsn

        public void visitVarInsn​(int opcode,
                                 int var)
        Description copied from class: MethodVisitor
        Visits a local variable instruction. A local variable instruction is an instruction that loads or stores the value of a local variable.
        Overrides:
        visitVarInsn in class MethodVisitor
        Parameters:
        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,
                                  java.lang.String type)
        Description copied from class: MethodVisitor
        Visits a type instruction. A type instruction is an instruction that takes the internal name of a class as parameter.
        Overrides:
        visitTypeInsn in class MethodVisitor
        Parameters:
        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 Type.getInternalName()).
      • visitFieldInsn

        public void visitFieldInsn​(int opcode,
                                   java.lang.String owner,
                                   java.lang.String name,
                                   java.lang.String descriptor)
        Description copied from class: MethodVisitor
        Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object.
        Overrides:
        visitFieldInsn in class MethodVisitor
        Parameters:
        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 Type.getInternalName()).
        name - the field's name.
        descriptor - the field's descriptor (see Type).
      • visitMethodInsn

        public void visitMethodInsn​(int opcodeAndSource,
                                    java.lang.String owner,
                                    java.lang.String name,
                                    java.lang.String descriptor,
                                    boolean isInterface)
        Description copied from class: MethodVisitor
        Visits a method instruction. A method instruction is an instruction that invokes a method.
        Overrides:
        visitMethodInsn in class MethodVisitor
        Parameters:
        opcodeAndSource - the opcode of the type instruction to be visited. This opcode is either INVOKEVIRTUAL, INVOKESPECIAL, INVOKESTATIC or INVOKEINTERFACE.
        owner - the internal name of the method's owner class (see Type.getInternalName()).
        name - the method's name.
        descriptor - the method's descriptor (see Type).
        isInterface - if the method's owner class is an interface.
      • visitInvokeDynamicInsn

        public void visitInvokeDynamicInsn​(java.lang.String name,
                                           java.lang.String descriptor,
                                           Handle bootstrapMethodHandle,
                                           java.lang.Object... bootstrapMethodArguments)
        Description copied from class: MethodVisitor
        Visits an invokedynamic instruction.
        Overrides:
        visitInvokeDynamicInsn in class MethodVisitor
        Parameters:
        name - the method's name.
        descriptor - the method's descriptor (see Type).
        bootstrapMethodHandle - the bootstrap method.
        bootstrapMethodArguments - the bootstrap method constant arguments. Each argument must be an Integer, Float, Long, Double, String, Type, Handle or ConstantDynamic value. This method is allowed to modify the content of the array so a caller should expect that this array may change.
      • visitJumpInsn

        public void visitJumpInsn​(int opcode,
                                  Label label)
        Description copied from class: MethodVisitor
        Visits a jump instruction. A jump instruction is an instruction that may jump to another instruction.
        Overrides:
        visitJumpInsn in class MethodVisitor
        Parameters:
        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.
      • visitLdcInsn

        public void visitLdcInsn​(java.lang.Object value)
        Description copied from class: MethodVisitor
        Visits a LDC instruction. Note that new constant types may be added in future versions of the Java Virtual Machine. To easily detect new constant types, implementations of this method should check for unexpected constant types, like this:
         if (cst instanceof Integer) {
             // ...
         } else if (cst instanceof Float) {
             // ...
         } else if (cst instanceof Long) {
             // ...
         } else if (cst instanceof Double) {
             // ...
         } else if (cst instanceof String) {
             // ...
         } else if (cst instanceof Type) {
             int sort = ((Type) cst).getSort();
             if (sort == Type.OBJECT) {
                 // ...
             } else if (sort == Type.ARRAY) {
                 // ...
             } else if (sort == Type.METHOD) {
                 // ...
             } else {
                 // throw an exception
             }
         } else if (cst instanceof Handle) {
             // ...
         } else if (cst instanceof ConstantDynamic) {
             // ...
         } else {
             // throw an exception
         }
         
        Overrides:
        visitLdcInsn in class MethodVisitor
        Parameters:
        value - the constant to be loaded on the stack. This parameter must be a non null Integer, a Float, a Long, a Double, a String, a Type of OBJECT or ARRAY sort for .class constants, for classes whose version is 49, a Type of METHOD sort for MethodType, a Handle for MethodHandle constants, for classes whose version is 51 or a ConstantDynamic for a constant dynamic for classes whose version is 55.
      • visitIincInsn

        public void visitIincInsn​(int var,
                                  int increment)
        Description copied from class: MethodVisitor
        Visits an IINC instruction.
        Overrides:
        visitIincInsn in class MethodVisitor
        Parameters:
        var - index of the local variable to be incremented.
        increment - amount to increment the local variable by.
      • visitTableSwitchInsn

        public void visitTableSwitchInsn​(int min,
                                         int max,
                                         Label dflt,
                                         Label... labels)
        Description copied from class: MethodVisitor
        Visits a TABLESWITCH instruction.
        Overrides:
        visitTableSwitchInsn in class MethodVisitor
        Parameters:
        min - the minimum key value.
        max - the maximum key value.
        dflt - beginning of the default handler block.
        labels - beginnings of the handler blocks. labels[i] is the beginning of the handler block for the min + i key.
      • visitLookupSwitchInsn

        public void visitLookupSwitchInsn​(Label dflt,
                                          int[] keys,
                                          Label[] labels)
        Description copied from class: MethodVisitor
        Visits a LOOKUPSWITCH instruction.
        Overrides:
        visitLookupSwitchInsn in class MethodVisitor
        Parameters:
        dflt - beginning of the default handler block.
        keys - the values of the keys.
        labels - beginnings of the handler blocks. labels[i] is the beginning of the handler block for the keys[i] key.
      • visitMultiANewArrayInsn

        public void visitMultiANewArrayInsn​(java.lang.String descriptor,
                                            int numDimensions)
        Description copied from class: MethodVisitor
        Visits a MULTIANEWARRAY instruction.
        Overrides:
        visitMultiANewArrayInsn in class MethodVisitor
        Parameters:
        descriptor - an array type descriptor (see Type).
        numDimensions - the number of dimensions of the array to allocate.