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token.go
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73 lines (63 loc) · 1.68 KB
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/*
* Copyright 2018 The CovenantSQL Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package types
import "strings"
//go:generate hsp
// TokenType defines token's type.
type TokenType int32
const (
// Particle defines covenantsql's token
Particle TokenType = iota
// Wave defines covenantsql's token
Wave
// Ether defines Ethereum.
Ether
// EOS defines EOS.
EOS
// Bitcoin defines Bitcoin.
Bitcoin
// SupportTokenNumber defines the number of token covenantsql supports
SupportTokenNumber
)
// TokenList lists supporting token.
var TokenList = map[TokenType]string{
Particle: "Particle",
Wave: "Wave",
Ether: "Ether",
EOS: "EOS",
Bitcoin: "Bitcoin",
}
// String returns token's symbol.
func (t TokenType) String() string {
if t < 0 || t >= SupportTokenNumber {
return "Unknown"
}
return TokenList[t]
}
// FromString returns token's number.
func FromString(t string) TokenType {
var i TokenType
for ; i < SupportTokenNumber; i++ {
if strings.ToLower(TokenList[i]) == strings.ToLower(t) {
return i
}
}
return -1
}
// Listed returns if the token is listed in list.
func (t *TokenType) Listed() bool {
return (*t) >= 0 && *t < SupportTokenNumber
}