From a1fc0d8144c0204314d4551d2bbd3af0130ea73e Mon Sep 17 00:00:00 2001 From: Martin Holst Swende Date: Thu, 27 Oct 2022 15:25:01 +0200 Subject: [PATCH] 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 --- eth/filters/filter.go | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/eth/filters/filter.go b/eth/filters/filter.go index fbbb4a7aa..26e85a6f1 100644 --- a/eth/filters/filter.go +++ b/eth/filters/filter.go @@ -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 }