github.com/stafiprotocol/go-substrate-rpc-client@v1.4.7/types/null.go (about)

     1  // Go Substrate RPC Client (GSRPC) provides APIs and types around Polkadot and any Substrate-based chain RPC calls
     2  //
     3  // Copyright 2020 Stafi Protocol
     4  //
     5  // Licensed under the Apache License, Version 2.0 (the "License");
     6  // you may not use this file except in compliance with the License.
     7  // You may obtain a copy of the License at
     8  //
     9  //     http://www.apache.org/licenses/LICENSE-2.0
    10  //
    11  // Unless required by applicable law or agreed to in writing, software
    12  // distributed under the License is distributed on an "AS IS" BASIS,
    13  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14  // See the License for the specific language governing permissions and
    15  // limitations under the License.
    16  
    17  package types
    18  
    19  import (
    20  	"github.com/stafiprotocol/go-substrate-rpc-client/pkg/scale"
    21  )
    22  
    23  // Null is a type that does not contain anything (apart from null)
    24  type Null byte
    25  
    26  // NewNull creates a new Null type
    27  func NewNull() Null {
    28  	return Null(0x00)
    29  }
    30  
    31  // Encode implements encoding for Null, which does nothing
    32  func (n Null) Encode(encoder scale.Encoder) error {
    33  	return nil
    34  }
    35  
    36  // Decode implements decoding for Null, which does nothing
    37  func (n *Null) Decode(decoder scale.Decoder) error {
    38  	return nil
    39  }
    40  
    41  // String returns a string representation of the value
    42  func (n Null) String() string {
    43  	return ""
    44  }