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eth/filters: change filter block to be by-ref (#26054) 

This PR changes the block field in the filter to be a pointer, to disambiguate between empty hash and no hash
This commit is contained in:
Martin Holst Swende 2022-10-27 15:25:01 +02:00 committed by GitHub
parent 9d795d0836
commit a1fc0d8144
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1 changed files with 5 additions and 5 deletions
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10
eth/filters/filter.go
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@ -34,8 +34,8 @@ type Filter struct {
addresses []common.Address
topics [][]common.Hash
block common.Hash // Block hash if filtering a single block
begin, end int64 // Range interval if filtering multiple blocks
block *common.Hash // Block hash if filtering a single block
begin, end int64 // Range interval if filtering multiple blocks
matcher *bloombits.Matcher
}
@ -78,7 +78,7 @@ func (sys *FilterSystem) NewRangeFilter(begin, end int64, addresses []common.Add
func (sys *FilterSystem) NewBlockFilter(block common.Hash, addresses []common.Address, topics [][]common.Hash) *Filter {
// Create a generic filter and convert it into a block filter
filter := newFilter(sys, addresses, topics)
filter.block = block
filter.block = &block
return filter
}
@ -96,8 +96,8 @@ func newFilter(sys *FilterSystem, addresses []common.Address, topics [][]common.
// first block that contains matches, updating the start of the filter accordingly.
func (f *Filter) Logs(ctx context.Context) ([]*types.Log, error) {
// If we're doing singleton block filtering, execute and return
if f.block != (common.Hash{}) {
header, err := f.sys.backend.HeaderByHash(ctx, f.block)
if f.block != nil {
header, err := f.sys.backend.HeaderByHash(ctx, *f.block)
if err != nil {
return nil, err
}