forked from cerc-io/plugeth
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
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@ -34,8 +34,8 @@ type Filter struct {
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addresses []common.Address
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topics [][]common.Hash
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block common.Hash // Block hash if filtering a single block
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begin, end int64 // Range interval if filtering multiple blocks
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block *common.Hash // Block hash if filtering a single block
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begin, end int64 // Range interval if filtering multiple blocks
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matcher *bloombits.Matcher
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}
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@ -78,7 +78,7 @@ func (sys *FilterSystem) NewRangeFilter(begin, end int64, addresses []common.Add
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func (sys *FilterSystem) NewBlockFilter(block common.Hash, addresses []common.Address, topics [][]common.Hash) *Filter {
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// Create a generic filter and convert it into a block filter
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filter := newFilter(sys, addresses, topics)
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filter.block = block
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filter.block = &block
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return filter
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}
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@ -96,8 +96,8 @@ func newFilter(sys *FilterSystem, addresses []common.Address, topics [][]common.
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// first block that contains matches, updating the start of the filter accordingly.
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func (f *Filter) Logs(ctx context.Context) ([]*types.Log, error) {
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// If we're doing singleton block filtering, execute and return
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if f.block != (common.Hash{}) {
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header, err := f.sys.backend.HeaderByHash(ctx, f.block)
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if f.block != nil {
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header, err := f.sys.backend.HeaderByHash(ctx, *f.block)
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if err != nil {
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return nil, err
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}
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