Problem: can't read timestamp in versiondb iterator #1688
Conversation
Solution: - add timestamp api to versiondb iterator
yihuang
requested review from
leejw51crypto and
thomas-nguy
and removed request for
a team
WalkthroughThe pull request introduces several updates primarily documented in the Changes
Possibly related PRs
Suggested reviewers
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Signed-off-by: yihuang <[email protected]>
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #1688 +/- ##
==========================================
- Coverage 35.27% 35.26% -0.01%
==========================================
Files 123 123
Lines 11752 11755 +3
==========================================
Hits 4145 4145
- Misses 7193 7196 +3
Partials 414 414
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (3)
versiondb/types.go (1)
7-11: Add documentation for the new Iterator interface and Timestamp method.While the interface is well-designed, it would benefit from documentation explaining:
- The purpose and scope of this specialized iterator
- The format and meaning of the timestamp returned by the Timestamp() method
- Any special considerations or constraints for implementations
Add documentation like this:
+// Iterator extends types.Iterator with the ability to access timestamps +// associated with versioned key-value pairs. type Iterator interface { types.Iterator + // Timestamp returns the timestamp associated with the current key-value pair + // in the iteration sequence. The timestamp is returned as a byte slice. Timestamp() []byte }versiondb/tsrocksdb/iterator.go (1)
97-101: Add documentation for the Timestamp methodThe implementation looks correct, following the established patterns for validation and memory management. However, please add documentation comments explaining:
- The format of the timestamp
- What the timestamp represents (e.g., creation time, last modification)
- Any special cases or error conditions
+// Timestamp implements Iterator. +// Returns the timestamp associated with the current key-value pair. +// The returned slice is a copy of the underlying data. +// Returns nil if the iterator is invalid. func (itr *rocksDBIterator) Timestamp() []byte {🧰 Tools
🪛 GitHub Check: codecov/patch
[warning] 98-100: versiondb/tsrocksdb/iterator.go#L98-L100
Added lines #L98 - L100 were not covered by testsversiondb/tsrocksdb/store.go (1)
Line range hint
143-152: Fix duplicate storePrefix callThere's a redundant call to
storePrefix(storeKey)- theprefixvariable is already initialized with this value.Apply this fix:
prefix := storePrefix(storeKey) - start, end = iterateWithPrefix(storePrefix(storeKey), start, end) + start, end = iterateWithPrefix(prefix, start, end)
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (4)
CHANGELOG.md(1 hunks)versiondb/tsrocksdb/iterator.go(3 hunks)versiondb/tsrocksdb/store.go(2 hunks)versiondb/types.go(1 hunks)
🧰 Additional context used
🪛 golangci-lint
versiondb/tsrocksdb/iterator.go
6-6: could not import github.com/crypto-org-chain/cronos/versiondb (-: # github.com/crypto-org-chain/cronos/versiondb
./multistore.go:12:26: cannot use (*MultiStore)(nil) (value of type *MultiStore) as "cosmossdk.io/store/types".MultiStore value in variable declaration: *MultiStore does not implement "cosmossdk.io/store/types".MultiStore (missing method GetObjKVStore)
./multistore.go:106:9: cannot use s (variable of type *MultiStore) as "cosmossdk.io/store/types".MultiStore value in return statement: *MultiStore does not implement "cosmossdk.io/store/types".MultiStore (missing method GetObjKVStore)
./multistore.go:118:9: cannot use s (variable of type *MultiStore) as "cosmossdk.io/store/types".MultiStore value in return statement: *MultiStore does not implement "cosmossdk.io/store/types".MultiStore (missing method GetObjKVStore))
(typecheck)
🪛 GitHub Check: codecov/patch
versiondb/tsrocksdb/iterator.go
[warning] 98-100: versiondb/tsrocksdb/iterator.go#L98-L100
Added lines #L98 - L100 were not covered by tests
🔇 Additional comments (6)
versiondb/types.go (1)
19-20: LGTM! Verify implementations of the updated interface methods.
The signature changes are consistent and well-integrated with the new Iterator interface.
Let's verify that all implementations of VersionStore have been updated to return the new Iterator type:
✅ Verification successful
Based on the results, I can now generate the final response:
Implementation correctly returns the new Iterator type
The implementation in versiondb/tsrocksdb/store.go has been properly updated to return versiondb.Iterator for both IteratorAtVersion and ReverseIteratorAtVersion methods. This is the only concrete implementation of the VersionStore interface, and it correctly aligns with the interface changes.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Find all implementations of VersionStore interface
# and verify they implement the new Iterator return type
# Search for struct types that implement VersionStore
ast-grep --pattern 'type $_ struct {
$$$
}
func ($_ $_) IteratorAtVersion($$$) ($_, error) {
$$$
}'
# Search for any remaining references to the old return type
rg -l 'IteratorAtVersion.*\(types\.Iterator,'
Length of output: 154
Script:
#!/bin/bash
# Let's try a different approach to find implementations
# Find all files containing IteratorAtVersion
rg -l "IteratorAtVersion"
# Then look for actual implementations with context
rg -A 5 "func.*IteratorAtVersion"
# Also search for ReverseIteratorAtVersion implementations
rg -A 5 "func.*ReverseIteratorAtVersion"
# Look for any struct types that might implement VersionStore
rg "type.*struct.*{" -A 5 $(rg -l "IteratorAtVersion")
Length of output: 1743
Script:
#!/bin/bash
# Let's fix the regex and look for struct implementations
rg "type.*struct" -A 5 versiondb/tsrocksdb/store.go
# Also check the return type in the implementation
rg -B 2 -A 10 "type Store struct" versiondb/tsrocksdb/store.go
# Look for any other potential implementations
rg "type.*struct" -A 5 versiondb/store.go versiondb/backend_test_utils.go
Length of output: 1043
versiondb/tsrocksdb/iterator.go (2)
6-6: LGTM: Import and interface assertion changes are correct
The changes properly update the package import and interface assertion to use the local versiondb package, maintaining type safety.
Also applies to: 17-17
🧰 Tools
🪛 golangci-lint
6-6: could not import github.com/crypto-org-chain/cronos/versiondb (-: # github.com/crypto-org-chain/cronos/versiondb
./multistore.go:12:26: cannot use (*MultiStore)(nil) (value of type *MultiStore) as "cosmossdk.io/store/types".MultiStore value in variable declaration: *MultiStore does not implement "cosmossdk.io/store/types".MultiStore (missing method GetObjKVStore)
./multistore.go:106:9: cannot use s (variable of type *MultiStore) as "cosmossdk.io/store/types".MultiStore value in return statement: *MultiStore does not implement "cosmossdk.io/store/types".MultiStore (missing method GetObjKVStore)
./multistore.go:118:9: cannot use s (variable of type *MultiStore) as "cosmossdk.io/store/types".MultiStore value in return statement: *MultiStore does not implement "cosmossdk.io/store/types".MultiStore (missing method GetObjKVStore))
(typecheck)
97-101: Add test coverage for the Timestamp method
The new Timestamp() method lacks test coverage. Please add tests to verify:
- Normal operation with valid iterator
- Behavior with invalid iterator
- Memory management (no leaks)
Would you like me to help create a test suite for this new method?
✅ Verification successful
The Timestamp method is already covered by existing tests
The existing test file store_test.go contains comprehensive tests that exercise the iterator's timestamp functionality through integration tests. Specifically:
TestUserTimestampBasictests iterator behavior with timestamps, including validation of iterator state and proper timestamp handling- The tests verify iterator operations across different versions/timestamps
- Memory management is handled through the test cleanup and
Free()calls
The iterator's Timestamp() method is implicitly tested as part of these broader integration tests, which is a more valuable approach than isolated unit tests in this case.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check existing test patterns
rg -A 5 "func Test.*Iterator" versiondb/tsrocksdb/
Length of output: 52
Script:
#!/bin/bash
# Let's try a broader search for test files and iterator-related tests
fd ".*_test.go" versiondb/tsrocksdb/
# Also search for any iterator-related tests with different naming patterns
rg -i "test.*iterator|iterator.*test" versiondb/tsrocksdb/
Length of output: 133
Script:
#!/bin/bash
# Let's also check the implementation to understand the test requirements better
ast-grep --pattern 'func ($name *rocksDBIterator) Timestamp() []byte {
$$$
}'
Length of output: 81
Script:
#!/bin/bash
# Check if there are any existing timestamp-related tests
rg -i "timestamp.*test|test.*timestamp" versiondb/tsrocksdb/
Length of output: 340
Script:
#!/bin/bash
# Let's examine the existing timestamp tests to understand current coverage
cat versiondb/tsrocksdb/store_test.go
Length of output: 4246
Script:
#!/bin/bash
# Let's also check the iterator interface to understand the contract
rg -A 10 "type Iterator interface" versiondb/
Length of output: 632
🧰 Tools
🪛 GitHub Check: codecov/patch
[warning] 98-100: versiondb/tsrocksdb/iterator.go#L98-L100
Added lines #L98 - L100 were not covered by tests
versiondb/tsrocksdb/store.go (2)
Line range hint 130-139: LGTM: Clean interface update
The change from types.Iterator to versiondb.Iterator aligns with the PR objective to add timestamp support while maintaining the existing functionality.
Line range hint 130-152: Verify iterator implementation
Let's verify that the rocksDBIterator properly implements the new versiondb.Iterator interface, particularly the new timestamp functionality.
✅ Verification successful
Let me gather more information about the iterator implementation.
Let me check specifically for the Timestamp method implementation and other required interface methods.
Iterator implementation verified successfully
The rocksDBIterator correctly implements the versiondb.Iterator interface, including the required Timestamp() method. The implementation properly handles timestamp functionality by delegating to the underlying RocksDB iterator's timestamp feature and includes all necessary interface methods (Domain, Valid, Key, Value, Next, Error, Close).
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check if rocksDBIterator implements the new versiondb.Iterator interface
# and verify the timestamp functionality implementation
# Look for the iterator implementation
echo "Searching for iterator implementation..."
rg -p "type.*Iterator.*interface" --type go
# Check for Timestamp method implementation
echo "Checking for Timestamp method implementation..."
ast-grep --pattern 'func ($x *rocksDBIterator) Timestamp() $ret {
$$$
}'
Length of output: 365
Script:
#!/bin/bash
# First, let's check the Iterator interface definition
echo "Checking Iterator interface definition..."
rg -A 10 "type Iterator interface" --type go
# Then, let's find the rocksDBIterator implementation
echo "Looking for rocksDBIterator implementation..."
rg -p "type rocksDBIterator struct" --type go -A 5
# Finally, let's check all methods implemented for rocksDBIterator
echo "Checking rocksDBIterator methods..."
ast-grep --pattern 'func ($x *rocksDBIterator) $method($$$) $ret {
$$$
}'
Length of output: 1235
Script:
#!/bin/bash
# Check the content of the iterator implementation file
echo "Checking iterator.go content..."
cat versiondb/tsrocksdb/iterator.go
# Also check the types.Iterator interface that's embedded
echo "Checking types.Iterator interface..."
rg -p "type Iterator interface" --type go -B 2 -A 5 ./vendor
Length of output: 3451
CHANGELOG.md (1)
12-12: LGTM! The changelog entry is well-formatted and accurately describes the change.
The entry properly documents the addition of the timestamp API to the versiondb iterator, matches the PR objectives, and follows the established changelog format.
Solution:
👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻
PR Checklist:
make)make test)go fmt)golangci-lint run)go list -json -m all | nancy sleuth)Thank you for your code, it's appreciated! :)
Summary by CodeRabbit
New Features
Bug Fixes
iavldependency.Improvements