refactor: Use default register position in PrefixTree; Add RegisterHandler constructor for multiple registers; Add register_id_t type alias.#88
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WalkthroughThis pull request introduces changes across the finite automata module and its tests. In the PrefixTree class, a new static constant Changes
Sequence Diagram(s)sequenceDiagram
participant T as Test (handler_init)
participant RH as RegisterHandler
T->>RH: add_registers(num_registers)
loop For each register index i
alt i == 0
RH->>RH: add_register() (default register add)
else
RH->>RH: add_register(prefix_tree_parent_node_id = i)
end
end
RH-->>T: vector of register IDs
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Actionable comments posted: 1
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src/log_surgeon/finite_automata/PrefixTree.hpp(1 hunks)src/log_surgeon/finite_automata/RegisterHandler.hpp(2 hunks)tests/test-register-handler.cpp(1 hunks)
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`**/*.{cpp,hpp,java,js,jsx,ts,tsx}`: - Prefer `false ==
**/*.{cpp,hpp,java,js,jsx,ts,tsx}: - Prefer false == <expression> rather than !<expression>.
src/log_surgeon/finite_automata/PrefixTree.hpptests/test-register-handler.cppsrc/log_surgeon/finite_automata/RegisterHandler.hpp
**/*.{cpp,hpp,java,js,jsx,ts,tsx}: - Prefer false == <expression> rather than !<expression>.
src/log_surgeon/finite_automata/PrefixTree.hpptests/test-register-handler.cppsrc/log_surgeon/finite_automata/RegisterHandler.hpp🧠 Learnings (1)
src/log_surgeon/finite_automata/RegisterHandler.hpp (2)
Learnt from: SharafMohamed
PR: y-scope/log-surgeon#56
File: src/log_surgeon/finite_automata/RegisterHandler.hpp:0-0
Timestamp: 2024-11-27T22:25:35.608Z
Learning: In the `RegisterHandler` class in `src/log_surgeon/finite_automata/RegisterHandler.hpp`, the methods `add_register` and `append_position` rely on `emplace_back` and `m_prefix_tree.insert` to handle exceptions correctly and maintain consistent state without requiring additional exception handling.
Learnt from: SharafMohamed
PR: y-scope/log-surgeon#56
File: src/log_surgeon/finite_automata/RegisterHandler.hpp:0-0
Timestamp: 2024-11-27T21:56:13.425Z
Learning: In the `log_surgeon` project, header guards in C++ header files should include `_HPP` at the end to match the filename. For example, in `RegisterHandler.hpp`, the header guard should be `LOG_SURGEON_FINITE_AUTOMATA_REGISTER_HANDLER_HPP`.
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tests/test-register-handler.cpp
[error] 8-8: 'log_surgeon/finite_automata/Register.hpp' file not found.
🔇 Additional comments (8)
src/log_surgeon/finite_automata/RegisterHandler.hpp (6)
21-27: LGTM! Efficient implementation for adding multiple registers.The method efficiently uses emplace_back and maintains type consistency with uint32_t.
29-43: LGTM! Well-designed overloads for register creation.Both overloads maintain consistent state by using emplace_back and m_prefix_tree.insert, following the established pattern from previous implementations.
45-47: LGTM! Enhanced type safety with register_id_t.The change from size_t to register_id_t improves type safety while maintaining the same functionality.
49-51: LGTM! Enhanced type safety with register_id_t.The change from size_t to register_id_t improves type safety while maintaining the same functionality.
53-57: LGTM! Enhanced type safety with register_id_t.The change from size_t to register_id_t improves type safety while maintaining the same functionality.
59-62: LGTM! Enhanced type safety with register_id_t.The change from size_t to register_id_t improves type safety while maintaining the same functionality.
src/log_surgeon/finite_automata/PrefixTree.hpp (1)
27-27: LGTM! Added default position constant.The cDefaultPos constant provides a clear, centralized default value for position initialization.
tests/test-register-handler.cpp (1)
23-27:Details
✅ Verification successful
Verify register hierarchy changes.
The initialization logic has been modified to create a different hierarchy:
- First register (i=0) is added at the root
- Subsequent registers use their index as the parent node ID
Please verify if this change in hierarchy is intentional and aligns with the expected register relationships tested in the "Register relationships are maintained" section.
🏁 Script executed:
#!/bin/bash # Description: Check if the test expectations match the new hierarchy # Search for tests verifying register relationships rg -A 10 "Register relationships are maintained" tests/Length of output: 903
Register hierarchy behaviour verified.
The updated logic—adding the first register as a root (i.e. without a parent node) and adding subsequent registers with their index as the parent node ID—has been validated against the "Register relationships are maintained" test in
tests/test-register-handler.cpp. The test’s expectations (e.g. the reversed positions order) confirm that the new hierarchy is working as intended.
| #include <vector> | ||
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| #include <log_surgeon/finite_automata/PrefixTree.hpp> | ||
| #include <log_surgeon/finite_automata/Register.hpp> |
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Fix missing header file.
The pipeline is failing because 'log_surgeon/finite_automata/Register.hpp' cannot be found.
Please ensure that the Register.hpp file is created and properly placed in the finite_automata directory.
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Actionable comments posted: 0
🧹 Nitpick comments (4)
src/log_surgeon/finite_automata/RegisterHandler.hpp (4)
10-10: Add documentation for the type alias.Consider adding a brief documentation comment explaining the purpose and constraints of
register_id_t.Add this documentation:
+/** + * Type alias for register identifiers. + * Uses uint32_t to ensure sufficient capacity for register indices while maintaining + * memory efficiency. + */ using register_id_t = uint32_t;
22-28: Add input validation and documentation.The method implementation looks good, but consider these improvements:
- Add input validation for
num_reg_to_add- Add documentation explaining the method's purpose and return value
Apply these changes:
+/** + * Adds multiple registers to the handler. + * @param num_reg_to_add Number of registers to add + * @return Vector containing the IDs of the newly added registers + * @throws std::invalid_argument if num_reg_to_add is 0 + */ auto add_registers(uint32_t const num_reg_to_add) -> std::vector<uint32_t> { + if (0 == num_reg_to_add) { + throw std::invalid_argument("Number of registers to add must be greater than 0"); + } std::vector<uint32_t> added_registers; + added_registers.reserve(num_reg_to_add); // Optimize for known size for (uint32_t i{0}; i < num_reg_to_add; ++i) { added_registers.emplace_back(add_register()); } return added_registers; }
30-36: Add documentation for the method.Add documentation to explain the method's purpose and return value.
Add this documentation:
+/** + * Adds a new register at the root of the prefix tree. + * @return ID of the newly added register + */ auto add_register() -> register_id_t {
38-44: Add documentation for the overloaded method.Add documentation to explain the method's purpose, parameter, and return value.
Add this documentation:
+/** + * Adds a new register with a specific parent node in the prefix tree. + * @param prefix_tree_parent_node_id ID of the parent node in the prefix tree + * @return ID of the newly added register + */ auto add_register(PrefixTree::id_t const prefix_tree_parent_node_id) -> register_id_t {
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src/log_surgeon/finite_automata/RegisterHandler.hpp(2 hunks)
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📓 Path-based instructions (1)
`**/*.{cpp,hpp,java,js,jsx,tpp,ts,tsx}`: - Prefer `false == ...
**/*.{cpp,hpp,java,js,jsx,tpp,ts,tsx}: - Preferfalse == <expression>rather than!<expression>.
src/log_surgeon/finite_automata/RegisterHandler.hpp
🧠 Learnings (1)
src/log_surgeon/finite_automata/RegisterHandler.hpp (2)
Learnt from: SharafMohamed
PR: y-scope/log-surgeon#56
File: src/log_surgeon/finite_automata/RegisterHandler.hpp:0-0
Timestamp: 2024-11-27T22:25:35.608Z
Learning: In the `RegisterHandler` class in `src/log_surgeon/finite_automata/RegisterHandler.hpp`, the methods `add_register` and `append_position` rely on `emplace_back` and `m_prefix_tree.insert` to handle exceptions correctly and maintain consistent state without requiring additional exception handling.
Learnt from: SharafMohamed
PR: y-scope/log-surgeon#56
File: src/log_surgeon/finite_automata/RegisterHandler.hpp:0-0
Timestamp: 2024-11-27T21:56:13.425Z
Learning: In the `log_surgeon` project, header guards in C++ header files should include `_HPP` at the end to match the filename. For example, in `RegisterHandler.hpp`, the header guard should be `LOG_SURGEON_FINITE_AUTOMATA_REGISTER_HANDLER_HPP`.
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🔇 Additional comments (2)
src/log_surgeon/finite_automata/RegisterHandler.hpp (2)
4-4: LGTM! Good choice using fixed-width integer types.The change to use
<cstdint>instead of<cstddef>aligns well with the introduction of fixed-width types for register IDs.
46-63: LGTM! Consistent use of register_id_t type.The changes to use
register_id_tinstead ofsize_timprove type safety and maintain consistency throughout the class.
davidlion
changed the title
register_id_t.PrefixTree; Add RegisterHandler constructor for multiple registers; Add register_id_t type alias.
2 participants
Description
register_id_tinstead of usingsize_t.Validation performed
test-register-handler.cpp.Summary by CodeRabbit
Summary by CodeRabbit
New Features
Refactor
Tests