20e9b2ede3
* rpc: event websocket subscription * rpc: use tendermint event subscriptions * new log events * filter evm transactions * filter logs * wip: refactor filters * remove custom BlockNumber * wip: refactor rpc * HeaderByNumber and HeaderByHash * update Tendermint event system * update Filter * update EventSystem * fix lint issues * update rpc filters * upgrade to tendermint v0.33.4 * update filters * fix unsubscription * updates wip * initialize channels * cleanup go routines * pass ResultEvent channel on subscription * error channel * add block filter changes test * add eventCh loop * pass funcs in select go func, block filter working * cleanup * lint * NewFilter and GetFilterChanges working * eth_getLogs working * lint * lint * cleanup * remove logs and minor fixes * changelog * address @noot comments * revert BlockNumber removal Co-authored-by: noot <elizabethjbinks@gmail.com>
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package rpc
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import (
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"fmt"
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"math"
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"math/big"
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"strings"
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"github.com/ethereum/go-ethereum/common/hexutil"
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)
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// BlockNumber represents decoding hex string to block values
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type BlockNumber int64
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const (
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// LatestBlockNumber mapping from "latest" to 0 for tm query
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LatestBlockNumber = BlockNumber(0)
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// EarliestBlockNumber mapping from "earliest" to 1 for tm query (earliest query not supported)
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EarliestBlockNumber = BlockNumber(1)
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)
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// NewBlockNumber creates a new BlockNumber instance.
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func NewBlockNumber(n *big.Int) BlockNumber {
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return BlockNumber(n.Int64())
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}
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// UnmarshalJSON parses the given JSON fragment into a BlockNumber. It supports:
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// - "latest", "earliest" or "pending" as string arguments
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// - the block number
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// Returned errors:
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// - an invalid block number error when the given argument isn't a known strings
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// - an out of range error when the given block number is either too little or too large
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func (bn *BlockNumber) UnmarshalJSON(data []byte) error {
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input := strings.TrimSpace(string(data))
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if len(input) >= 2 && input[0] == '"' && input[len(input)-1] == '"' {
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input = input[1 : len(input)-1]
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}
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switch input {
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case "earliest":
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*bn = EarliestBlockNumber
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return nil
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case "latest":
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*bn = LatestBlockNumber
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return nil
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case "pending":
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*bn = LatestBlockNumber
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return nil
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}
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blckNum, err := hexutil.DecodeUint64(input)
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if err != nil {
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return err
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}
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if blckNum > math.MaxInt64 {
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return fmt.Errorf("blocknumber too high")
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}
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*bn = BlockNumber(blckNum)
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return nil
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}
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// Int64 converts block number to primitive type
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func (bn BlockNumber) Int64() int64 {
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return (int64)(bn)
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}
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