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proposal_block.go
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proposal_block.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package blocks
import (
"fmt"
"time"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/avalanchego/snow"
"github.com/ava-labs/avalanchego/vms/platformvm/txs"
)
var (
_ BlueberryBlock = &BlueberryProposalBlock{}
_ Block = &ApricotProposalBlock{}
)
type BlueberryProposalBlock struct {
Time uint64 `serialize:"true" json:"time"`
// Transactions is currently unused. This is populated so that introducing
// them in the future will not require a codec change.
//
// TODO: when Transactions is used, we must correctly verify and apply their
// changes.
Transactions []*txs.Tx `serialize:"true" json:"-"`
ApricotProposalBlock `serialize:"true"`
}
func (b *BlueberryProposalBlock) InitCtx(ctx *snow.Context) {
for _, tx := range b.Transactions {
tx.Unsigned.InitCtx(ctx)
}
b.ApricotProposalBlock.InitCtx(ctx)
}
func (b *BlueberryProposalBlock) Timestamp() time.Time { return time.Unix(int64(b.Time), 0) }
func (b *BlueberryProposalBlock) Visit(v Visitor) error { return v.BlueberryProposalBlock(b) }
func NewBlueberryProposalBlock(
timestamp time.Time,
parentID ids.ID,
height uint64,
tx *txs.Tx,
) (*BlueberryProposalBlock, error) {
blk := &BlueberryProposalBlock{
Time: uint64(timestamp.Unix()),
ApricotProposalBlock: ApricotProposalBlock{
CommonBlock: CommonBlock{
PrntID: parentID,
Hght: height,
},
Tx: tx,
},
}
return blk, initialize(blk)
}
type ApricotProposalBlock struct {
CommonBlock `serialize:"true"`
Tx *txs.Tx `serialize:"true" json:"tx"`
}
func (b *ApricotProposalBlock) initialize(bytes []byte) error {
b.CommonBlock.initialize(bytes)
if err := b.Tx.Sign(txs.Codec, nil); err != nil {
return fmt.Errorf("failed to initialize tx: %w", err)
}
return nil
}
func (b *ApricotProposalBlock) InitCtx(ctx *snow.Context) {
b.Tx.Unsigned.InitCtx(ctx)
}
func (b *ApricotProposalBlock) Txs() []*txs.Tx { return []*txs.Tx{b.Tx} }
func (b *ApricotProposalBlock) Visit(v Visitor) error { return v.ApricotProposalBlock(b) }
func NewApricotProposalBlock(
parentID ids.ID,
height uint64,
tx *txs.Tx,
) (*ApricotProposalBlock, error) {
blk := &ApricotProposalBlock{
CommonBlock: CommonBlock{
PrntID: parentID,
Hght: height,
},
Tx: tx,
}
return blk, initialize(blk)
}