import org.jf.dexlib2.iface.instruction.formats.Instruction21s; //导入依赖的package包/类
@Nonnull
private BuilderInstruction21s newBuilderInstruction21s(@Nonnull Instruction21s instruction) {
    return new BuilderInstruction21s(
            instruction.getOpcode(),
            instruction.getRegisterA(),
            instruction.getNarrowLiteral());
}
 

import org.jf.dexlib2.iface.instruction.formats.Instruction21s; //导入依赖的package包/类
public static ImmutableInstruction21s of(Instruction21s instruction) {
    if (instruction instanceof ImmutableInstruction21s) {
        return (ImmutableInstruction21s)instruction;
    }
    return new ImmutableInstruction21s(
            instruction.getOpcode(),
            instruction.getRegisterA(),
            instruction.getNarrowLiteral());
}
 

import org.jf.dexlib2.iface.instruction.formats.Instruction21s; //导入依赖的package包/类
public static ImmutableInstruction21s of(Instruction21s instruction) {
    if (instruction instanceof ImmutableInstruction21s) {
        return (ImmutableInstruction21s) instruction;
    }
    return new ImmutableInstruction21s(
            instruction.getOpcode(),
            instruction.getRegisterA(),
            instruction.getNarrowLiteral());
}
 

import org.jf.dexlib2.iface.instruction.formats.Instruction21s; //导入依赖的package包/类
public void write(@Nonnull Instruction21s instruction) {
    try {
        writer.write(instruction.getOpcode().value);
        writer.write(instruction.getRegisterA());
        writer.writeShort(instruction.getNarrowLiteral());
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    }
}