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orderbook: extract String() from Print()

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This commit is contained in:
ycdesu 2021-03-04 08:55:33 +08:00
parent 43275d08bc
commit cd6457f5c0
1 changed files with 20 additions and 5 deletions
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25
pkg/types/orderbook.go
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@ -3,6 +3,7 @@ package types
import (
"fmt"
"sort"
"strings"
"sync"
"github.com/pkg/errors"
@ -227,16 +228,30 @@ func (b *OrderBook) Update(book OrderBook) {
}
func (b *OrderBook) Print() {
fmt.Printf("BOOK %s\n", b.Symbol)
fmt.Printf("ASKS:\n")
fmt.Printf(b.String())
}
func (b *OrderBook) String() string {
sb := strings.Builder{}
sb.WriteString("BOOK ")
sb.WriteString(b.Symbol)
sb.WriteString("\n")
sb.WriteString("ASKS:\n")
for i := len(b.Asks) - 1; i >= 0; i-- {
fmt.Printf("- ASK: %s\n", b.Asks[i].String())
sb.WriteString("- ASK: ")
sb.WriteString(b.Asks[i].String())
sb.WriteString("\n")
}
fmt.Printf("BIDS:\n")
sb.WriteString("BIDS:\n")
for _, bid := range b.Bids {
fmt.Printf("- BID: %s\n", bid.String())
sb.WriteString("- BID: ")
sb.WriteString(bid.String())
sb.WriteString("\n")
}
return sb.String()
}
type MutexOrderBook struct {