56 lines
1.0 KiB
Go
56 lines
1.0 KiB
Go
package parser
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import (
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"fmt"
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"github.com/gtank/ctxd/parser/internal/bytestring"
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"github.com/pkg/errors"
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)
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type block struct {
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hdr *blockHeader
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vtx []*transaction
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}
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func NewBlock() *block {
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return &block{}
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}
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func (b *block) GetVersion() int {
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return int(b.hdr.Version)
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}
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func (b *block) GetTxCount() int {
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return len(b.vtx)
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}
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func (b *block) ParseFromSlice(data []byte) (rest []byte, err error) {
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hdr := NewBlockHeader()
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data, err = hdr.ParseFromSlice(data)
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if err != nil {
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return nil, errors.Wrap(err, "parsing block header")
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}
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s := bytestring.String(data)
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var txCount int
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if ok := s.ReadCompactSize(&txCount); !ok {
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return nil, errors.New("could not read tx_count")
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}
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data = []byte(s)
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vtx := make([]*transaction, 0, txCount)
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for i := 0; len(data) > 0; i++ {
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tx := NewTransaction()
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data, err = tx.ParseFromSlice(data)
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if err != nil {
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return nil, errors.Wrap(err, fmt.Sprintf("parsing transaction %d", i))
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}
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vtx = append(vtx, tx)
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}
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b.hdr = hdr
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b.vtx = vtx
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return data, nil
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}
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