docs: add comments to the code #22257
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📝 WalkthroughWalkthroughThe pull request introduces enhancements to the Changes
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Actionable comments posted: 2
🧹 Outside diff range and nitpick comments (5)
collections/codec/codec_test.go (4)
12-13: Consider improving readability of codec creationThe setup code creates the necessary codec for testing, but the long chain of function calls might be hard to read. Consider breaking it down into multiple lines or using intermediate variables for better readability.
Example refactor:
stringKeyCodec := NewStringKeyCodec[string]() keyCodec := KeyCodec[string](stringKeyCodec) valueCodec := KeyToValueCodec(keyCodec) stringValueCodec := ValueCodec[string](valueCodec) vc := NewUntypedValueCodec(stringValueCodec)
31-46: LGTM: Well-implemented "json encode/decode" sub-test with a minor suggestionThe "json encode/decode" sub-test is well-structured and consistent with the previous sub-test:
- It covers both error and success cases for JSON operations.
- The assertions use the
requirepackage as recommended.Minor suggestion: Consider adding a test case for decoding invalid JSON to ensure robust error handling.
Example additional test case:
// Test decoding invalid JSON _, err = vc.DecodeJSON([]byte(`{"invalid": "json"`)) require.Error(t, err)
47-59: LGTM: Well-implemented "stringify" sub-test with a minor suggestionThe "stringify" sub-test is well-structured and consistent with the previous sub-tests:
- It covers both error and success cases for stringification.
- The assertions use the
requirepackage as recommended.Minor suggestion: For consistency with the other sub-tests, consider adding a case to test stringification of an empty string.
Example additional test case:
// Test stringification of an empty string s, err = vc.Stringify("") require.NoError(t, err) require.Equal(t, "", s)
9-59: Overall: Well-implemented tests with room for minor enhancementsThe
TestUntypedValueCodecfunction provides comprehensive testing for the UntypedValueCodec:
- The structure follows Go best practices and the Uber Go Style Guide.
- Sub-tests cover encoding/decoding, JSON operations, and stringification.
- Both success and error cases are tested.
Consider the following enhancements:
- Improve readability of the codec creation in the setup.
- Add a test case for decoding invalid JSON in the "json encode/decode" sub-test.
- Test stringification of an empty string in the "stringify" sub-test.
- Consider adding tests for edge cases, such as very large strings or special characters.
These additions would further strengthen the test suite and ensure robust behavior of the UntypedValueCodec.
collections/codec/bool.go (1)
72-75: Simplify type conversion inStringifymethodIn the
Stringifymethod, the type conversion(bool)(key)is unnecessary sincekeyis already of a type that derives frombooldue to the type constraintT ~bool. You can simplify the code by removing the redundant type conversion.Apply this diff to simplify the code:
func (b boolKey[T]) Stringify(key T) string { - return strconv.FormatBool((bool)(key)) + return strconv.FormatBool(bool(key)) }
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📒 Files selected for processing (2)
- collections/codec/bool.go (1 hunks)
- collections/codec/codec_test.go (1 hunks)
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collections/codec/bool.go (1)
Pattern
**/*.go: Review the Golang code for conformity with the Uber Golang style guide, highlighting any deviations.collections/codec/codec_test.go (2)
Pattern
**/*.go: Review the Golang code for conformity with the Uber Golang style guide, highlighting any deviations.
Pattern
**/*_test.go: "Assess the unit test code assessing sufficient code coverage for the changes associated in the pull request"
🔇 Additional comments (12)
collections/codec/codec_test.go (2)
9-11: LGTM: Well-documented test functionThe function declaration and comments follow Go naming conventions and the Uber Go Style Guide. The comments provide a clear description of the test function's purpose.
15-30: LGTM: Well-structured "encode/decode" sub-testThe "encode/decode" sub-test is well-implemented:
- It covers both error and success cases.
- It follows the table-driven test pattern recommended by the Uber Go Style Guide.
- The assertions use the
requirepackage as recommended.Good job on thorough testing of the encoding and decoding functionality.
collections/codec/bool.go (10)
9-13: Well-documented and correctly implementedNewBoolKeyfunctionThe
NewBoolKeyfunction is well-documented, clearly explaining its purpose and the type constraints. The implementation correctly returns a newboolKeycodec instance.
15-16: Clear implementation of theboolKeystructThe
boolKeystruct correctly implements theKeyCodecinterface for boolean values, and the documentation provides a clear understanding of its role.
31-49: RobustDecodemethod with proper error handlingThe
Decodemethod correctly checks the buffer length and handles invalid input gracefully. The switch statement appropriately distinguishes between valid and invalid byte values, ensuring accurate decoding of boolean values.
52-55: Accurate implementation of theSizemethodThe
Sizemethod correctly returns the constant size required to encode a boolean value, which is 1 byte.
57-61: Correct use of JSON marshaling inEncodeJSONThe
EncodeJSONmethod appropriately usesjson.Marshalto convert the boolean value into its JSON representation. This ensures consistency with standard JSON encoding practices.
63-69: Proper JSON decoding inDecodeJSONThe
DecodeJSONmethod correctly usesjson.Unmarshalto decode the JSON-encoded data into a boolean value. The use of a variable of typeTmaintains consistency with the generic type constraint.
78-80: Clear implementation of theKeyTypemethodThe
KeyTypemethod correctly returns the string identifier"bool"for the key type, aiding in identification and debugging.
89-92: Correct delegation inDecodeNonTerminalThe
DecodeNonTerminalmethod appropriately delegates to theDecodemethod, ensuring consistency in decoding behavior for multipart keys.
95-98: Consistent implementation ofSizeNonTerminalThe
SizeNonTerminalmethod correctly delegates to theSizemethod, maintaining consistency in size calculation for multipart keys.
101-104: Proper implementation ofWithNamemethodThe
WithNamemethod correctly wraps the current codec with a name, returning aNamedKeyCodec. This aids in identification and enhances usability.
| // EncodeNonTerminal is used in multipart keys. It behaves the same as the regular Encode method, | ||
| // writing the boolean value into the buffer. | ||
| func (b boolKey[T]) EncodeNonTerminal(buffer []byte, key T) (int, error) { | ||
| return b.Encode(buffer, key) |
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Ensure buffer length is checked in EncodeNonTerminal
Since EncodeNonTerminal relies on the Encode method, it inherits the same potential issue where an insufficient buffer length could cause a panic. After fixing the buffer length check in the Encode method, EncodeNonTerminal will also be safeguarded.
| // Encode encodes the boolean value into the first byte of the buffer. | ||
| // If the value is true, the buffer gets the byte value `0x1`, otherwise `0x0`. | ||
| // It returns the number of bytes written (always 1) or an error if something goes wrong. | ||
| func (b boolKey[T]) Encode(buffer []byte, key T) (int, error) { | ||
| if key { | ||
| buffer[0] = 0x1 | ||
| buffer[0] = 0x1 // Encode true as 0x1. | ||
| return 1, nil | ||
| } | ||
| buffer[0] = 0x0 | ||
| buffer[0] = 0x0 // Encode false as 0x0. | ||
| return 1, nil | ||
| } |
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Add buffer length check in Encode method to prevent potential panic
In the Encode method, there's no check to ensure that the buffer has sufficient length before writing to buffer[0]. This can lead to an index out of range panic if the buffer is less than one byte long. Please add a length check to ensure len(buffer) >= 1 before accessing buffer[0].
Apply this diff to add the buffer length check:
func (b boolKey[T]) Encode(buffer []byte, key T) (int, error) {
+ if len(buffer) < 1 {
+ return 0, fmt.Errorf("%w: buffer too small, expected at least 1 byte", ErrEncoding)
+ }
if key {
buffer[0] = 0x1 // Encode true as 0x1.
return 1, nil
}
buffer[0] = 0x0 // Encode false as 0x0.
return 1, nil
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| // Encode encodes the boolean value into the first byte of the buffer. | |
| // If the value is true, the buffer gets the byte value `0x1`, otherwise `0x0`. | |
| // It returns the number of bytes written (always 1) or an error if something goes wrong. | |
| func (b boolKey[T]) Encode(buffer []byte, key T) (int, error) { | |
| if key { | |
| buffer[0] = 0x1 | |
| buffer[0] = 0x1 // Encode true as 0x1. | |
| return 1, nil | |
| } | |
| buffer[0] = 0x0 | |
| buffer[0] = 0x0 // Encode false as 0x0. | |
| return 1, nil | |
| } | |
| // Encode encodes the boolean value into the first byte of the buffer. | |
| // If the value is true, the buffer gets the byte value `0x1`, otherwise `0x0`. | |
| // It returns the number of bytes written (always 1) or an error if something goes wrong. | |
| func (b boolKey[T]) Encode(buffer []byte, key T) (int, error) { | |
| if len(buffer) < 1 { | |
| return 0, fmt.Errorf("%w: buffer too small, expected at least 1 byte", ErrEncoding) | |
| } | |
| if key { | |
| buffer[0] = 0x1 // Encode true as 0x1. | |
| return 1, nil | |
| } | |
| buffer[0] = 0x0 // Encode false as 0x0. | |
| return 1, nil | |
| } |
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Hey! Let's not comment tests
| return 0, false, fmt.Errorf("%w: wanted size to be at least 1", ErrEncoding) | ||
| } | ||
| switch buffer[0] { | ||
| case 0: | ||
| // If the first byte is 0, return false. |
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Let's not add very obvious comment. the code is clearly already saying that, this doesn't add anything.
|
Hey thanks for the pr. This goes overboard in terms of documentation of functions and its code. Im going to close this pr, but feel free to open another one after this with less comments |
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Summary by CodeRabbit
New Features
boolKeycodec with new methods for JSON encoding/decoding, string conversion, and multipart key handling.Bug Fixes
Tests
UntypedValueCodec, covering encoding, decoding, JSON handling, and stringification.