ASM中是否有任何utils类可让我从操作码中推断出指令是某种存储，加载还是其他形式？
例如，并考虑以下代码（来自ASM）
/**
* Visits a zero operand instruction.
*
* @param 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.
*/
public void visitInsn(int opcode) {
if (mv != null) {
mv.visitInsn(opcode);
}
}
使用诸如Utils.isConst（opcode）或Utils.isLoad（opcode）或Utils.isStore（opcode）之类的方法会很方便。
ASM中有类似的东西吗？
最佳答案
看看InstructionAdapter。它将操作码转换为更粗粒度的方法调用。