refact Next() in mergeiterator.go #22712
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🧹 Outside diff range and nitpick comments (3)
store/cachekv/internal/mergeiterator.go (3)
53-72: Add documentation for the refactored logicWhile the code is more readable now, please add a comment block explaining the three main cases handled by this method:
- When parent is invalid
- When cache is invalid
- When both are valid
// Next implements Iterator +// It advances the iterator based on three cases: +// 1. If parent is invalid, advance the cache iterator +// 2. If cache is invalid, advance the parent iterator +// 3. If both are valid, compare their keys and advance accordingly: +// - If parent key < cache key: advance parent +// - If keys are equal: advance both +// - If parent key > cache key: advance cache func (iter *cacheMergeIterator) Next() {🧰 Tools
🪛 golangci-lint (1.62.2)
56-56: File is not
gci-ed with --skip-generated -s standard -s default -s prefix(cosmossdk.io) -s prefix(github.com/cosmos/cosmos-sdk) --custom-order(gci)
56-56: Fix inconsistent spacing in else-if blockThere's an inconsistent space before the opening brace in the else-if condition.
- } else if !iter.cache.Valid(){ + } else if !iter.cache.Valid() {🧰 Tools
🪛 golangci-lint (1.62.2)
56-56: File is not
gci-ed with --skip-generated -s standard -s default -s prefix(cosmossdk.io) -s prefix(github.com/cosmos/cosmos-sdk) --custom-order(gci)
59-71: Consider simplifying the comparison logicThe switch statement inside the else block could be simplified to make the code more concise and maintainable.
} else { // Both iterators are valid, so we compare their keys keyP, keyC := iter.parent.Key(), iter.cache.Key() - switch iter.compare(keyP, keyC) { - case -1: // parent < cache - iter.parent.Next() // Advance parent - case 0: // parent == cache - iter.parent.Next() // Advance both iterators, since they are equal + cmp := iter.compare(keyP, keyC) + if cmp <= 0 { // parent <= cache + iter.parent.Next() + if cmp == 0 { + iter.cache.Next() + } + } else { // parent > cache iter.cache.Next() - case 1: // parent > cache - iter.cache.Next() // Advance cache } }
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📒 Files selected for processing (1)
store/cachekv/internal/mergeiterator.go(1 hunks)
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store/cachekv/internal/mergeiterator.go (1)
Pattern **/*.go: Review the Golang code for conformity with the Uber Golang style guide, highlighting any deviations.
🪛 golangci-lint (1.62.2)
store/cachekv/internal/mergeiterator.go
56-56: File is not gci-ed with --skip-generated -s standard -s default -s prefix(cosmossdk.io) -s prefix(github.com/cosmos/cosmos-sdk) --custom-order
(gci)
🔇 Additional comments (1)
store/cachekv/internal/mergeiterator.go (1)
53-72: LGTM: Well-integrated refactoring
The refactored Next() method:
- Maintains the iterator's contract
- Preserves the behavior with
skipUntilExistsOrInvalid - Aligns with the existing error handling through
assertValid
🧰 Tools
🪛 golangci-lint (1.62.2)
56-56: File is not gci-ed with --skip-generated -s standard -s default -s prefix(cosmossdk.io) -s prefix(github.com/cosmos/cosmos-sdk) --custom-order
(gci)
Description
Closes: #XXXX
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Summary by CodeRabbit
Bug Fixes
Nextmethod, enhancing its reliability and readability.Documentation
Nextmethod, reflecting the new control flow structure.