Lint, tidy and use C++20 features #673
Conversation
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
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Warning Rate limit exceeded@elazarg has exceeded the limit for the number of commits or files that can be reviewed per hour. Please wait 6 minutes and 11 seconds before requesting another review. How to resolve this issue?After the wait time has elapsed, a review can be triggered using the We recommend that you space out your commits to avoid hitting the rate limit. How do rate limits work?CodeRabbit enforces hourly rate limits for each developer per organization. Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout. Please see our FAQ for further information. WalkthroughThe changes involve extensive modifications across multiple source files, primarily focusing on enhancing type safety, improving code clarity, and adopting modern C++ features. Key updates include the introduction of Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant System
User->>System: Call function with parameters
System->>System: Process parameters with const references
System->>System: Utilize modern C++ features
System->>User: Return results
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Actionable comments posted: 5
Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Files selected for processing (66)
- src/asm_cfg.cpp (8 hunks)
- src/asm_files.cpp (16 hunks)
- src/asm_files.hpp (1 hunks)
- src/asm_marshal.cpp (15 hunks)
- src/asm_ostream.cpp (24 hunks)
- src/asm_ostream.hpp (2 hunks)
- src/asm_parse.cpp (9 hunks)
- src/asm_parse.hpp (0 hunks)
- src/asm_syntax.hpp (6 hunks)
- src/asm_unmarshal.cpp (26 hunks)
- src/asm_unmarshal.hpp (1 hunks)
- src/assertions.cpp (10 hunks)
- src/crab/add_bottom.hpp (4 hunks)
- src/crab/array_domain.cpp (36 hunks)
- src/crab/array_domain.hpp (3 hunks)
- src/crab/bitset_domain.cpp (2 hunks)
- src/crab/bitset_domain.hpp (4 hunks)
- src/crab/cfg.hpp (21 hunks)
- src/crab/cfg_bgl.hpp (0 hunks)
- src/crab/dsl_syntax.hpp (1 hunks)
- src/crab/ebpf_domain.hpp (8 hunks)
- src/crab/fwd_analyzer.cpp (9 hunks)
- src/crab/interval.cpp (12 hunks)
- src/crab/interval.hpp (12 hunks)
- src/crab/linear_constraint.hpp (4 hunks)
- src/crab/linear_expression.hpp (6 hunks)
- src/crab/split_dbm.cpp (44 hunks)
- src/crab/split_dbm.hpp (8 hunks)
- src/crab/thresholds.cpp (4 hunks)
- src/crab/thresholds.hpp (2 hunks)
- src/crab/type_domain.cpp (1 hunks)
- src/crab/type_domain.hpp (1 hunks)
- src/crab/var_factory.cpp (4 hunks)
- src/crab/variable.hpp (2 hunks)
- src/crab/wto.cpp (8 hunks)
- src/crab/wto.hpp (3 hunks)
- src/crab/wto_cycle.hpp (0 hunks)
- src/crab/wto_nesting.hpp (0 hunks)
- src/crab_utils/adapt_sgraph.hpp (14 hunks)
- src/crab_utils/bignums.hpp (7 hunks)
- src/crab_utils/debug.cpp (1 hunks)
- src/crab_utils/graph_ops.hpp (16 hunks)
- src/crab_utils/heap.hpp (6 hunks)
- src/crab_utils/lazy_allocator.hpp (2 hunks)
- src/crab_utils/safeint.hpp (3 hunks)
- src/crab_utils/stats.cpp (5 hunks)
- src/crab_verifier.cpp (5 hunks)
- src/crab_verifier.hpp (1 hunks)
- src/ebpf_base.h (2 hunks)
- src/ebpf_vm_isa.hpp (2 hunks)
- src/ebpf_yaml.cpp (10 hunks)
- src/ebpf_yaml.hpp (1 hunks)
- src/linux/gpl/spec_prototypes.cpp (3 hunks)
- src/linux/linux_platform.cpp (6 hunks)
- src/main/check.cpp (3 hunks)
- src/main/linux_verifier.cpp (2 hunks)
- src/main/linux_verifier.hpp (1 hunks)
- src/main/run_yaml.cpp (1 hunks)
- src/main/utils.hpp (1 hunks)
- src/platform.hpp (2 hunks)
- src/spec_type_descriptors.hpp (1 hunks)
- src/string_constraints.hpp (1 hunks)
- src/test/conformance_check.cpp (2 hunks)
- src/test/test_conformance.cpp (1 hunks)
- src/test/test_marshal.cpp (22 hunks)
- src/test/test_verify.cpp (2 hunks)
Files not reviewed due to no reviewable changes (4)
- src/asm_parse.hpp
- src/crab/cfg_bgl.hpp
- src/crab/wto_cycle.hpp
- src/crab/wto_nesting.hpp
Additional context used
cppcheck
src/crab_utils/debug.cpp
[style] 12-12: The function 'CrabEnableWarningMsg' is never used.
(unusedFunction)
src/main/linux_verifier.cpp
[style] 22-22: The function 'bpf_verify_program' is never used.
(unusedFunction)
src/crab_utils/stats.cpp
[style] 100-100: The function 'count_max' is never used.
(unusedFunction)
[style] 104-104: The function 'uset' is never used.
(unusedFunction)
src/crab/wto.cpp
[style] 230-230: The function 'nesting' is never used.
(unusedFunction)
src/asm_marshal.cpp
[error] 194-194: Syntax Error
(internalAstError)
src/asm_ostream.cpp
[error] 194-194: Syntax Error
(internalAstError)
src/linux/gpl/spec_prototypes.cpp
[style] 2291-2291: The function 'get_helper_prototype_linux' is never used.
(unusedFunction)
Additional comments not posted (432)
src/crab_utils/debug.cpp (1)
12-12: LGTM!The changes to the function signature improve clarity and adhere to best practices:
- Using a more descriptive parameter name
binstead ofvenhances readability.- Adding the
constqualifier to the parameter is a good practice to indicate that it is not modified within the function.The functionality remains unaffected by these changes.
Tools
cppcheck
[style] 12-12: The function 'CrabEnableWarningMsg' is never used.
(unusedFunction)
src/main/utils.hpp (4)
3-3: Good practice!The addition of the
#pragma oncedirective is a good practice to prevent potential issues with multiple inclusions of the header file.
7-7: Good use of const!Making the variable
beginconst is a good practice as it emphasizes that the variable should not be modified after its initial assignment, thereby improving code safety and readability.
11-11: Good use of const!Making the variable
endconst is a good practice as it emphasizes that the variable should not be modified after its initial assignment, thereby improving code safety and readability.
13-13: Good use of static_cast!Using
static_castfor type conversion is more in line with modern C++ practices. It enhances type safety and clarity in the conversion process compared to C-style casts.src/main/linux_verifier.hpp (1)
21-21: Great job on improving the function signature!The change from a non-const pointer to a const pointer for the
optionsparameter is a good practice. It enhances the safety and predictability of the function's behavior by preventing unintended side effects on theoptionsobject. This change is critical in multi-threaded or complex program scenarios where the integrity of the options must be maintained.Benefits of this change:
- Enforces a contract that the function will only read from the
optionsparameter rather than altering its state.- Prevents unintended side effects on the
optionsobject.- Enhances safety and predictability of the function's behavior.
src/asm_unmarshal.hpp (1)
25-29: LGTM!The addition of the
make_opcode_messagefunction enhances the functionality of the module by providing a utility for generating informative messages related to opcodes. This could be very useful for debugging or logging purposes.The use of
std::ostringstreamfor string formatting is a good choice as it provides type safety and flexibility in handling the output format.src/ebpf_yaml.hpp (1)
42-43: Excellent use ofstd::bytefor improved type safety!The change from
uint8_ttostd::bytefor the vector parameters in therun_conformance_test_casefunction is a great step towards enhancing type safety and code clarity.
std::byte, introduced in C++17, provides a distinct type for byte representation and prevents unintended arithmetic operations and conversions. This change makes the code more robust and self-explanatory.Please ensure that the corresponding changes are made in the calling code to pass the correct types to this function.
src/crab_verifier.hpp (2)
13-13: LGTM!The parameter name change from
stoosimproves code readability by using a more descriptive name for the output stream parameter.
16-16: Verify the usage ofstring_invariant_mapin the codebase.The type change from
crab::label_ttolabel_tin thestring_invariant_maptype alias suggests a potential refactoring or simplification of the type system. This change could lead to easier access and usage oflabel_tthroughout the codebase.Run the following script to verify the usage of
string_invariant_map:Verification successful
Verified: The
label_ttype change is consistent and properly implemented.The modification from
crab::label_ttolabel_tin thestring_invariant_maptype alias has been consistently applied insrc/crab_verifier.cpp. The file now useslabel_twithout thecrab::namespace, and there are no remaining occurrences ofcrab::label_t. This change appears to be part of a broader refactoring to simplify the use oflabel_t, although some types (e.g.,crab::invariant_table_t) still retain thecrab::namespace.The refactoring has been implemented correctly, maintaining consistency throughout the file and not introducing any apparent issues.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the usage of `string_invariant_map` in the codebase. # Test: Search for the type alias usage. Expect: No compilation errors. rg --type cpp $'string_invariant_map' -g '!crab_verifier.hpp' | xargs -I {} bash -c 'echo "Checking file: {}"; g++ -c -std=c++20 -I. {}'Length of output: 901
Script:
#!/bin/bash # Description: Examine the usage of string_invariant_map in src/crab_verifier.cpp # View the function definition and usage of string_invariant_map rg --type cpp -C 5 'string_invariant_map' src/crab_verifier.cpp # Check if label_t is used without the crab:: namespace rg --type cpp 'label_t' src/crab_verifier.cpp # Check if crab::label_t is still used anywhere rg --type cpp 'crab::label_t' src/crab_verifier.cppLength of output: 1980
src/ebpf_base.h (3)
9-14: LGTM!The removal of the enum prefix
_ebpf_return_typeimproves readability without altering the functionality. The enum values and their semantics remain intact.
Line range hint
16-32: LGTM!The removal of the enum prefix
_ebpf_argument_typeimproves readability without altering the functionality. The enum values and their semantics remain intact.
Line range hint
34-39: LGTM!The removal of the struct prefix
_ebpf_context_descriptorimproves readability without altering the functionality. The struct members and their semantics remain intact.src/crab/thresholds.hpp (2)
21-25: LGTM!The changes in the
thresholds_tclass are beneficial:
- Initializing
m_thresholdsdirectly in the member initializer list simplifies the constructor and ensures consistent initialization.- Changing the constructor parameter name from
sizetocapacityimproves clarity regarding the intent of the parameter.- Modifying the
addmethod to take aconstreference parameter is a good practice to avoid unnecessary copies and improve performance.Also applies to: 32-32
52-52: LGTM!The changes in the
wto_thresholds_tclass are beneficial:
- Modifying the constructor parameter type for
max_sizefromsize_ttoconst size_tis a minor change that improves clarity regarding the intent of the parameter.- Updating the
operator()method signature to accept aconst std::shared_ptr<wto_cycle_t>&enhances const-correctness and potentially improves performance by avoiding unnecessary copies.Also applies to: 56-56
src/crab/bitset_domain.cpp (2)
6-6: LGTM: The parameter name change enhances code clarity.Renaming the parameter from
btoarrayis a good refactoring that makes the code more readable and maintainable. The new name better reflects the nature of thebitset_domain_tobject being passed to the function.
10-10: LGTM: The logic for iterating through the array and outputting the ranges is correct.The function correctly skips over non-numerical bytes and outputs the ranges of numerical bytes in the desired format. The use of the
firstflag ensures proper comma separation between the output ranges. The overall structure and behavior of the output are maintained.Also applies to: 20-20
src/main/run_yaml.cpp (1)
11-11: LGTM! The change to makeargcconstis a good practice.Making the
argcparameterconstin themainfunction signature is a good practice that aligns with the C++ core guidelines. This change:
- Signals the intent that
argcshould not be modified within the function.- Prevents accidental modifications to
argc, thereby enhancing the function's safety.- Improves code clarity by explicitly indicating that
argcis a read-only parameter.The change does not affect the functionality of the
mainfunction or the overall program, asargcis typically not modified within the function anyway.Great job on adopting this best practice!
src/main/linux_verifier.cpp (2)
15-15: LGTM!The changes to the function signature are good improvements:
- Passing
cmdas a const reference clearly indicates that the function will not modify the command.- Passing
attras a non-const reference instead of a union simplifies the code and aligns with modern C++ practices.
Line range hint
23-51: Excellent improvements to the function!The changes enhance the function's safety, readability, and alignment with modern C++ practices:
- Passing
optionsas a const pointer prevents unintended modifications to the options.- Using direct instantiation for the
bpf_attrstructure simplifies the code.- Using
static_castandreinterpret_castfor type conversions improves readability and type safety.- Correctly interpreting the logging buffer data as a
const char*prevents potential type mismatches.Tools
cppcheck
[style] 22-22: The function 'bpf_verify_program' is never used.
(unusedFunction)
src/asm_files.hpp (5)
13-19: LGTM!The
vector_offunction is well-implemented and follows best practices. The validation checks enhance type safety and error handling.
21-27: LGTM!The
vector_offunction is well-implemented and follows best practices. The validation checks enhance type safety and error handling.
29-34: LGTM!The
vector_offunction is well-implemented and follows best practices. It leverages the existingvector_offunction that takes a raw byte pointer and size.
36-41: LGTM!The
vector_offunction is well-implemented and follows best practices. It leverages the existingvector_offunction that takes a raw byte pointer and size.
46-48: LGTM!The
read_elffunction signature change improves the semantic clarity of the code. The parameter renaming enhances readability and understanding of the function's purpose.src/string_constraints.hpp (2)
61-61: LGTM!Using the
= defaultspecifier for the equality operator is a good choice here. It allows the compiler to generate the correct default implementation based on themaybe_invmember, which enhances maintainability and clarity by eliminating the need for a custom implementation.
65-65: LGTM!Replacing
count(item)withcontains(item)is a good change. It suggests that the underlying data structure or API formaybe_invnow directly supports thecontainsmethod, which is a more expressive and potentially more efficient way to check for the presence of an item in a container.src/crab_utils/lazy_allocator.hpp (3)
17-17: LGTM!The change to the
lazy_allocatorclass template improves flexibility by allowing a custom factory function to be passed as a template parameter. The default value ofnullptrensures backward compatibility by using the default constructor ofTif no factory is provided.
29-33: LGTM!The changes to the
get()method align with the new template parameter for the factory function. The use ofif constexprallows the compiler to optimize the code based on the value offactory. The method correctly handles the case when a custom factory is provided and when no factory is provided, maintaining the lazy allocation behavior of the class.
Line range hint
1-72: Excellent work!The changes to the
lazy_allocatorclass template are well-designed and implemented. The introduction of the factory function pointer as a template parameter improves flexibility and maintainability. The modifications to theget()method align perfectly with the new factory mechanism, ensuring correct behavior in both cases when a custom factory is provided and when no factory is provided.The code follows good C++ practices, utilizes modern C++ features appropriately, and maintains the lazy allocation behavior of the class. The changes have a positive impact on the usability and extensibility of the
lazy_allocatorclass without introducing any apparent issues or inconsistencies.Great job on these improvements!
src/spec_type_descriptors.hpp (1)
45-51: Excellent refactoring to improve code clarity and maintainability!The introduction of the
EquivalenceKeystruct is a significant improvement over the previous tuple-based approach. It offers several benefits:
Enhanced readability: The struct members have clear names, making the code more self-explanatory and reducing the likelihood of misinterpreting tuple indices.
Type safety: The struct provides a strongly-typed representation of the key components, ensuring that the correct types are used for each member.
Comparison functionality: The default three-way comparison operator (
operator<=>) enables easier sorting and comparison ofEquivalenceKeyinstances, which is particularly useful when storing them in containers or performing equality or ordering operations.Overall, this change aligns the code with modern C++ practices and improves its clarity, usability, and maintainability.
src/platform.hpp (2)
30-31: LGTM!Removing the
structkeyword from the type of theplatformparameter is a good simplification. In C++, thestructkeyword is not necessary when referring to a type that has already been defined.
50-51: Great improvements!The addition of the
[[nodiscard]]attribute and theconstqualifier to thegroupparameter are excellent changes that enhance the safety and clarity of the code:
- The
[[nodiscard]]attribute serves as a hint to developers that the result of calling this function is important and should be used.- The
constqualifier enforces that the function does not modify the passed argument, which enhances safety and clarity in the function's intent.These changes improve the code without altering the underlying functionality.
src/crab/variable.hpp (4)
43-43: LGTM!The simplification of the
hash()method to directly return_idis a good change. It eliminates unnecessary type casting, potentially improving performance while maintaining correctness, assuming_idis of an appropriate type for hashing.
68-68: LGTM!Modifying the
operator<<to take aconst variable_treference instead of a copy is a good performance optimization. It avoids unnecessary copying of thevariable_tobject when outputting its string representation. This is especially beneficial ifvariable_tis a large object or if theoperator<<is called frequently.
76-76: LGTM!The removal of the
variable_name_factorytemplate structure and the direct association ofnameswith the_default_namesfunction is a good simplification. It reduces complexity and makes it clearer how the default names are generated and stored, without altering the core functionality of the code.
83-83: LGTM!Modifying the signature of the
stack_frame_varmethod to accept aconst std::string&for theprefixparameter instead of astd::stringis a good efficiency improvement. It prevents unnecessary copies of the string when the method is called, which can be beneficial if the method is called frequently with large strings.src/crab/thresholds.cpp (5)
6-6: LGTM!The use of an inline namespace
crab::inline iteratorsis a good practice for versioning and linkage. It can also improve compile times.
Line range hint
8-32: LGTM!The refactoring of the
thresholds_t::addmethod looks good:
- Using a
constreference for the parametervavoids unnecessary copies and improves performance.- The use of
std::ranges::findandstd::ranges::upper_boundsimplifies the code and improves readability.- The logic to check for consecutive thresholds remains the same, ensuring correctness.
37-37: LGTM!Using
autofor the loop variables in the range-based for loop improves readability and reduces verbosity. The loop logic remains the same, ensuring correctness.
56-62: LGTM!The changes to the
wto_thresholds_tclass look good:
- Using
constreferences for parameters in theoperator()methods promotes const-correctness and avoids unnecessary copies.- Retrieving basic blocks as
constreferences fromm_cfgensures that they are not modified unintentionally.- The overall logic of the methods remains the same, ensuring correctness.
Also applies to: 67-87
95-95: LGTM!The closing brace matches the opening brace at line 6, ensuring proper namespace scoping for
crab::inline iterators.src/ebpf_vm_isa.hpp (3)
13-15: LGTM!The change from
std::uint8_ttouint8_tfor theopcodefield simplifies the type declaration and improves code consistency. It does not affect the functionality or thedstandsrcfields.
13-15: Also applies to: 105-105
105-105: Verify the impact on the calling code.The change from
uint8_ttostd::bytefor theopcodeparameter promotes type safety and clarity. However, ensure that the corresponding changes have been made in the calling code to maintain compatibility with the new parameter type.Run the following script to verify the function usage:
src/test/conformance_check.cpp (2)
Line range hint
24-41: LGTM!The changes in the
base16_decodefunction are good improvements:
Using
std::vector<std::byte>as the return type enhances type safety and clarity by using thestd::bytetype, which is more semantically appropriate for representing raw byte data.Changing from
push_backwithstd::stoitoemplace_backwithstd::stoul, casting the result tostd::byte, improves performance by avoiding unnecessary copies and ensures that the values are correctly interpreted as bytes.The error handling for
std::invalid_argumentandstd::out_of_rangeexceptions is appropriate.
48-48: LGTM!The change in the
argcparameter frominttoconst intis a good practice. It enforces a stricter type qualification, indicating that the value ofargcshould not be modified within the function.src/crab/linear_constraint.hpp (6)
18-18: LGTM!Taking
constraint_kindas aconstreference can avoid unnecessary copies and improve performance. Good change!
Line range hint
36-44:
59-59: LGTM!Using uniform initialization syntax improves code clarity and readability. Good change!
60-60: LGTM!Using uniform initialization syntax improves code clarity and readability. Good change!
62-62: LGTM!Using uniform initialization syntax improves code clarity and readability. Good change!
93-94: LGTM!Using
std::sizeto determine the size of theconstraint_kind_labelarray is a safer and more idiomatic approach in C++. It reduces the risk of errors related to array size calculations and improves maintainability. Good change!src/asm_ostream.hpp (15)
14-18: LGTM!The changes to the
label_to_offset16function improve type safety and clarity:
- The addition of
constto thepcparameter reinforces immutability.- The use of
static_castenhances type safety and readability compared to the C-style cast.
23-27: LGTM!The changes to the
label_to_offset32function improve type safety and clarity:
- The addition of
constto thepcparameter reinforces immutability.- The use of
static_castenhances type safety and readability compared to the C-style cast.
43-43: LGTM!The changes to the
operator<<overload forImmimprove type safety and clarity:
- The addition of
constto theimmparameter reinforces immutability.- The use of
static_castenhances type safety and readability compared to the C-style cast.
44-44: LGTM!The change to the
operator<<overload forRegimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
52-52: LGTM!The change to the
operator<<overload forUndefinedimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
53-53: LGTM!The change to the
operator<<overload forLoadMapFdimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
54-54: LGTM!The change to the
operator<<overload forBinimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
55-55: LGTM!The change to the
operator<<overload forUnimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
56-56: LGTM!The change to the
operator<<overload forCallimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
57-57: LGTM!The change to the
operator<<overload forCallximproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
58-58: LGTM!The change to the
operator<<overload forExitimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
59-59: LGTM!The change to the
operator<<overload forJmpimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
60-60: LGTM!The change to the
operator<<overload forPacketimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
61-61: LGTM!The change to the
operator<<overload forMemimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.
62-62: LGTM!The change to the
operator<<overload forAtomicimproves type safety and clarity:
- The use of
static_castenhances type safety and readability compared to the C-style cast.src/crab/type_domain.hpp (3)
19-30: LGTM!The
reg_pack_tstruct provides a clean way to group together various metadata fields associated with a register. The field names are descriptive and the usage ofvariable_ttype is consistent.
32-46: LGTM!The
reg_packfunctions provide a convenient way to construct areg_pack_tstruct from anintorRegvalue. The overloads are straightforward and the usage ofdata_kind_tenums for constructing thevariable_tfields is consistent.
48-90: LGTM!The
TypeDomainstruct provides a comprehensive set of methods for managing types in a numerical abstract domain. The methods cover various aspects like type assignment, querying, comparison, and type-based operations on the abstract domain.Some key observations:
- The
assign_typemethods provide flexibility in assigning types from different sources.- The
get_typeandhas_typemethods allow querying types of variables, registers, and numbers.- The
same_typeandimplies_typemethods enable type-based comparisons.- The
join_over_types,join_by_if_else, andselectively_join_based_on_typemethods perform type-based join operations on the abstract domain.- The
add_extra_invariantandis_in_groupmethods provide additional type-based functionality.The method names are descriptive and the parameter types are consistent. The struct encapsulates the type-related functionality nicely.
src/crab_utils/stats.cpp (4)
16-17: LGTM!The removal of the
crab::prefix improves code clarity without altering the functionality. The scope and behavior of thethread_localvariables remain unchanged.
75-75: Good use ofstatic_cast!Replacing the C-style cast with
static_castenhances type safety and clarity. The explicit cast makes it clear that the conversion is intentional and type-appropriate.
83-83: Good use ofstatic_cast!Replacing the C-style cast with
static_castenhances type safety and clarity. The explicit cast makes it clear that the conversion is intentional and type-appropriate.
134-134: LGTM!The addition of the
constqualifier to theresetparameter is a good practice, as it clearly indicates that the value should not be modified within the constructor.src/crab/array_domain.hpp (7)
48-48: LGTM!Making the constructor explicit is a good practice to prevent unintended implicit conversions and enhance type safety.
57-58: LGTM!Updating the comparison operator to use the three-way comparison operator (
<=>) is a good practice in modern C++. It allows for more flexible and comprehensive comparisons between objects.Defaulting the equality operator (
==) simplifies the code and ensures consistency in equality checks.
64-67: LGTM!Marking the
widenandwidening_thresholdsfunctions with[[nodiscard]]is a good practice. It indicates that the return values of these functions should not be ignored, helping to prevent potential bugs caused by discarding important results.Updating the parameter type of
widening_thresholdstoconst thresholds_t&is also a positive change. It avoids unnecessary copying and improves performance by passing thethresholds_tobject by const reference.
75-76: LGTM!Marking the
all_numfunction with[[nodiscard]]is a good practice. It indicates that the return value of this function should not be ignored, helping to prevent potential bugs caused by discarding the result.Making the function parameters const is also a positive change. It improves const-correctness and clearly communicates that the function does not modify the input parameters.
81-81: LGTM!Making the
loadfunction const is a good practice. It indicates that the function does not modify the state of thearray_domain_tinstance, improving const-correctness and clearly communicating the function's behavior.
92-92: LGTM!Making the
invparameter of thestore_numbersfunction const is a good practice. It indicates that the function does not modify theNumAbsDomainobject, improving const-correctness and clearly communicating the function's behavior.
95-96: LGTM!Making the
split_number_varandsplit_cellfunctions const is a good practice. It indicates that these functions do not modify the state of thearray_domain_tinstance, improving const-correctness and clearly communicating the functions' behavior.src/crab_utils/safeint.hpp (13)
42-43: LGTM!The changes enhance type safety and clarity:
- Using
constfor parameters promotes const-correctness.- Explicit
static_castimproves readability and ensures intentional type conversions.
50-51: LGTM!The changes enhance type safety and clarity:
- Using
constfor parameters promotes const-correctness.- Explicit
static_castimproves readability and ensures intentional type conversions.
57-58: LGTM!The changes enhance type safety and clarity:
- Using
constfor parameters promotes const-correctness.- Explicit
static_castimproves readability and ensures intentional type conversions.
64-65: LGTM!The changes enhance type safety and clarity:
- Using
constfor parameters promotes const-correctness.- Explicit
static_castimproves readability and ensures intentional type conversions.
75-75: LGTM!The change enhances type safety by using
constfor the parameter, promoting const-correctness.
77-77: LGTM!The change in the constructor parameter type from
z_numbertonumber_tseems to be an appropriate update, possibly to align with a change in the type alias or to use a more suitable type. The use ofconstreference is maintained, which is good for performance and const-correctness.
82-83: LGTM!The changes enhance type safety and const-correctness:
- Using
constfor the parameter inoperator+promotes const-correctness.- The
checked_addfunction has been updated to acceptconstparameters, ensuring const-correctness throughout the implementation.
90-91: LGTM!The changes enhance type safety and const-correctness:
- Using
constfor the parameter inoperator-promotes const-correctness.- The
checked_subfunction has been updated to acceptconstparameters, ensuring const-correctness throughout the implementation.
98-99: LGTM!The changes enhance type safety and const-correctness:
- Using
constfor the parameter inoperator*promotes const-correctness.- The
checked_mulfunction has been updated to acceptconstparameters, ensuring const-correctness throughout the implementation.
106-107: LGTM!The changes enhance type safety and const-correctness:
- Using
constfor the parameter inoperator/promotes const-correctness.- The
checked_divfunction has been updated to acceptconstparameters, ensuring const-correctness throughout the implementation.
117-117: LGTM!The change enhances type safety by using
constfor the parameter inoperator+=, promoting const-correctness.
120-120: LGTM!The change enhances type safety by using
constfor the parameter inoperator-=, promoting const-correctness.
122-122: LGTM!The addition of the three-way comparison operator
operator<=>is a good use of C++20 features. It simplifies the comparison logic and allows for more concise and efficient comparisons compared to defining individual comparison operators. The implementation correctly compares them_nummember variables using the<=>operator.src/crab/dsl_syntax.hpp (2)
34-36: LGTM!The
eqfunction correctly constructs a linear constraint asserting the equality of two variables by returning a constraint that represents the expressiona - bset to zero. The implementation is straightforward and follows the expected behavior.
38-38: LGTM!The
neqfunction correctly generates a constraint indicating that two variables are not equal by returning a constraint that represents the expressiona - bset to a non-zero condition. The implementation is concise, readable, and follows the expected behavior.src/crab_utils/heap.hpp (14)
32-32: LGTM!The change to the template parameter for the comparator enhances type safety by enforcing that the provided comparator must be a valid predicate for comparing integers. This improves code clarity and catches potential type mismatches at compile time.
39-39: LGTM!The addition of the
constqualifier to the parameteriin theleftfunction enhances const-correctness. It clearly communicates that the value ofiis not modified within the function, improving code readability and safety.
40-40: LGTM!The addition of the
constqualifier to the parameteriin therightfunction enhances const-correctness. It clearly communicates that the value ofiis not modified within the function, improving code readability and safety.
41-41: LGTM!The addition of the
constqualifier to the parameteriin theparentfunction enhances const-correctness. It clearly communicates that the value ofiis not modified within the function, improving code readability and safety.
43-43: LGTM!The removal of the
inlinekeyword from thepercolateUpfunction does not affect the functionality of the code. Modern compilers are capable of making inlining decisions based on their own heuristics, so theinlinekeyword is often unnecessary. This change simplifies the code without impacting performance.
54-54: LGTM!The removal of the
inlinekeyword from thepercolateDownfunction does not affect the functionality of the code. Modern compilers are capable of making inlining decisions based on their own heuristics, so theinlinekeyword is often unnecessary. This change simplifies the code without impacting performance.
57-57: LGTM!The addition of the
constkeyword to the declaration of thechildvariable enhances const-correctness. It clearly communicates that the value ofchildis not modified after its initialization, improving code readability and safety.
71-71: LGTM!The addition of the
constqualifier to the parameteriin theheapPropertyfunction enhances const-correctness. It clearly communicates that the value ofiis not modified within the function, improving code readability and safety.
88-88: LGTM!The addition of the
constqualifier to the parameternin theinHeapfunction enhances const-correctness. It clearly communicates that the value ofnis not modified within the function, improving code readability and safety.
91-91: LGTM!The addition of the
constqualifier to the parameterindexin theoperator[]function enhances const-correctness. It clearly communicates that the value ofindexis not modified within the function, improving code readability and safety.
96-96: LGTM!The addition of the
constqualifier to the parameternin thedecreasefunction enhances const-correctness. It clearly communicates that the value ofnis not modified within the function, improving code readability and safety.
101-101: LGTM!The addition of the
constqualifier to the parameternin theinsertfunction enhances const-correctness. It clearly communicates that the value ofnis not modified within the function, improving code readability and safety.
114-114: LGTM!The addition of the
constkeyword to the declaration of thexvariable in theremoveMinfunction enhances const-correctness. It clearly communicates that the value ofxis not modified after its initialization, improving code readability and safety.
126-126: LGTM!The addition of the
constqualifier to the loop variableiin theclearfunction enhances const-correctness. It clearly communicates that the value ofiis not modified within the loop body, improving code readability and safety.src/crab/bitset_domain.hpp (11)
17-17: LGTM!The changes to the constructor improve type safety by preventing implicit conversions and avoid unnecessary copying by accepting a const reference.
36-47: LGTM!The change to use a three-way comparison operator aligns with modern C++ practices and provides more expressive comparisons. The implementation logic for determining the partial ordering based on
non_numerical_bytesis correct.
49-49: LGTM!Using the default implementation for the equality operator reduces boilerplate code and leverages the compiler's capabilities to check for equality based on the member variables.
53-55: LGTM!Changing the bitwise OR operator to return a new
bitset_domain_tinstance ensures that the operation maintains the class's encapsulation and integrity. The implementation correctly constructs a new instance with the result of the bitwise OR operation.
58-58: This change is similar to the previous one and has already been reviewed.
62-62: LGTM!Changing the bitwise AND operator to return a new
bitset_domain_tinstance ensures that the operation maintains the class's encapsulation and integrity. The implementation correctly constructs a new instance with the result of the bitwise AND operation.
67-67: LGTM!Changing the
widenmethod to return a newbitset_domain_tinstance reinforces the principle of immutability in the operation. The implementation correctly constructs a new instance with the result of the bitwise OR operation.
72-72: LGTM!Changing the
narrowmethod to return a newbitset_domain_tinstance reinforces the principle of immutability in the operation. The implementation correctly constructs a new instance with the result of the bitwise AND operation.
76-77: LGTM!Changing the
uniformitymethod to acceptsize_tparameters by value is more idiomatic for primitive types in C++ and improves readability and consistency in the codebase.
93-98: LGTM!Changing the
all_num_widthmethod to acceptsize_tparameter by value is more idiomatic for primitive types in C++ and improves readability and consistency in the codebase. Changing the return type tointis appropriate as the method returns the width, which is an integer value.
101-102: LGTM!Changing the
resetandhavocmethods to acceptsize_tparameters by value is more idiomatic for primitive types in C++ and improves readability and consistency in the codebase.Also applies to: 108-109
src/crab/linear_expression.hpp (10)
37-37: LGTM!Passing the parameter by
constreference instead of by value avoids unnecessary copies and improves performance. This change is consistent with the list of alterations provided.
45-45: LGTM!Passing the
variable_termsparameter byconstreference instead of by value avoids unnecessary copies and improves performance. This change is consistent with the list of alterations provided.
77-77: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
83-83: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
91-91: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
101-101: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
113-113: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
121-121: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
131-131: LGTM!Using uniform initialization syntax in the return statement improves readability and conciseness while maintaining the same functionality. This change is consistent with the list of alterations provided.
155-155: LGTM!Declaring the local variable
constantas aconstreference instead of a value avoids unnecessary copies and improves performance. This change is consistent with the list of alterations provided.src/crab/add_bottom.hpp (6)
10-10: LGTM!The namespace declaration update aligns with modern C++ practices and improves readability.
15-15: LGTM!The change to the
AddBottomconstructor enhances usability by allowing straightforward instantiation while maintaining encapsulation.
44-44: LGTM!The simplification of the
bottom()method improves conciseness by directly leveraging the default constructor.
51-61: LGTM!The transition to the three-way comparison operator
std::partial_ordering operator<=>enhances expressiveness by allowing the representation of equivalence, less-than, and greater-than relationships. The refined logic correctly handles cases where either operand is in the "bottom" state, returning appropriate partial ordering results.
114-114: LGTM!The update to the method for meeting two
AddBottominstances enhances safety and clarity by using the member access operator instead of directly dereferencing the optional.
233-233: LGTM!The namespace declaration update aligns with modern C++ practices and improves readability.
src/crab/var_factory.cpp (5)
14-18: Excellent use of C++20 features and improved logic flow!The changes made to the
variable_t::makefunction are a great improvement:
- The use of
std::ranges::findsimplifies the code and improves readability compared to the previous implementation usingstd::find.- The inverted logic flow simplifies the return statements and reduces the number of conditional branches, making the code easier to understand and maintain.
These changes align with the goal of adopting modern C++ features and improving code clarity.
158-160: Good use ofconstqualifiers to improve const-correctness.The addition of
constqualifiers to thevariable_t::regfunction parameters is a good practice:
- It ensures that the passed parameters
kindandiare not modified within the function.- It enhances the const-correctness of the code and makes the function's intent clearer.
These changes align with the goal of improving code clarity and safety.
174-176: Improved const-correctness and parameter passing.The changes made to the
variable_t::stack_frame_varfunction are beneficial:
- The addition of
constqualifiers to the function parameterskindandiensures that they are not modified within the function, enhancing const-correctness.- Passing the
prefixparameter by reference avoids unnecessary copying and improves performance.These changes align with the goals of improving code clarity, safety, and efficiency.
178-180: Improved const-correctness of function parameters.The addition of
constqualifiers to thevariable_t::cell_varfunction parameters is a good practice:
- It ensures that the passed parameters
array,offset, andsizeare not modified within the function.- It enhances the const-correctness of the code and makes the function's intent clearer.
These changes align with the goal of improving code clarity and safety.
183-186: Improved const-correctness of function parameters.The addition of
constqualifiers to thevariable_t::kind_varfunction parameters is a good practice:
- It ensures that the passed parameters
kindandtype_variableare not modified within the function.- It enhances the const-correctness of the code and makes the function's intent clearer.
These changes align with the goal of improving code clarity and safety.
src/crab/wto.hpp (3)
38-56: LGTM!The
wto_nesting_tclass is a well-designed addition to the codebase. It has a clear purpose, encapsulates its data, and provides useful operators for comparison and output. The choice to store heads in reverse order for performance optimization is a good design decision.
88-125: LGTM!The
wto_cycle_tclass is a well-designed addition to represent cycles within the WTO. It maintains a clear separation of concerns by storing a weak pointer to its containing cycle and a partition of its components. The choice of storing components in reverse order aligns with the algorithm's requirements. The provided methods for accessing the head and iterating over components are useful and follow good naming conventions.
Line range hint
134-183: LGTM!The modifications made to the
wto_tclass are well-justified and improve the overall design. The removal of the conditional compilation and the recursive algorithm-related code simplifies the implementation and focuses on the iterative approach. The updated constructor and the addition of new methods for collecting heads and managing nesting enhance the functionality of the class. The use ofstd::weak_ptrfor the_containing_cyclemember is a good choice to avoid ownership cycles. The use ofstd::mapfor efficient lookup of vertex data and nesting information is also appropriate.src/crab/fwd_analyzer.cpp (15)
22-22: LGTM!Using
std::move(node)in the constructor initialization list is a good practice for efficient resource management. It allows transferring ownership of thenodeparameter to_node, avoiding unnecessary copying.
30-30: LGTM!Updating the
operator()function to accept thestd::shared_ptr<wto_cycle_t>parameter as aconstreference is a good practice. It prevents unnecessary copying and clarifies that the function will not modify the passed argument, enhancing code clarity and adhering to const-correctness principles.
51-51: LGTM!Simplifying the
iteratortype alias toinvariant_table_t::iteratorimproves code conciseness and readability. It directly uses theiteratortype frominvariant_table_twithout the need fortypename.
70-73: LGTM!The changes in the
transform_to_postfunction are good improvements:
- Using a
constreference for thebasic_block_tretrieved from_cfg.get_node(label)reinforces const-correctness and avoids unnecessary copying.- Moving the
preparameter when assigning it to_post[label]allows efficient transfer of ownership and avoids unnecessary copying.
76-77: LGTM!Updating the
extrapolatefunction to accept its parameters asconstreferences is a good practice. It prevents unnecessary copying and clarifies that the function will not modify the passed arguments, enhancing code clarity and adhering to const-correctness principles.
87-87: LGTM!Updating the
refinefunction to accept its first parameter as aconstreference is a good practice. It prevents unnecessary copying and clarifies that the function will not modify the passed argument, enhancing code clarity and adhering to const-correctness principles.
117-117: LGTM!Updating the
operator()function to accept thestd::shared_ptr<wto_cycle_t>parameter as aconstreference is a good practice. It prevents unnecessary copying and clarifies that the function will not modify the passed argument, enhancing code clarity and adhering to const-correctness principles.
153-153: LGTM!Using a ternary operator to initialize the
prevariable based on whethernodeis the entry label or not is a concise and clear way to express the logic. It improves code readability and maintainability.
159-159: LGTM!Updating the
operator()function to accept thestd::shared_ptr<wto_cycle_t>parameter as aconstreference is a good practice. It prevents unnecessary copying and clarifies that the function will not modify the passed argument, enhancing code clarity and adhering to const-correctness principles.
160-160: LGTM!Declaring the
headvariable asconstis a good practice. It ensures that the value ofheadcannot be modified unintentionally, enhancing code clarity and adhering to const-correctness principles.
Line range hint
180-185: LGTM!The code segment that initializes the
invariantvariable based on thecycle_nestingand the previous nodes of theheadis clear and easy to understand. It follows the existing coding style and conventions, making it consistent with the rest of the codebase.
193-195: LGTM!The use of structured bindings to iterate over the components of
cyclesimplifies the code and improves readability. The logic for checking the component type and value is clear and concise, making it easy to understand the purpose of the code segment.
204-204: LGTM!Updating the
invariantusing theextrapolatefunction with the currentinvariant,new_pre, anditerationas arguments is consistent with the rest of the codebase. The code segment follows the existing coding style and conventions.
212-214: LGTM!The use of structured bindings to iterate over the components of
cyclesimplifies the code and improves readability. The logic for checking the component type and value is clear and concise, making it easy to understand the purpose of the code segment.
216-218: LGTM!The code segments at lines 216-218 and 224-225 follow the existing coding style and conventions. The use of the
refinefunction to update theinvariantis consistent with the rest of the codebase. The logic for checking the iteration threshold and updating the invariant is clear and easy to understand.Also applies to: 224-225
src/crab_verifier.cpp (4)
60-61: LGTM!Passing
pre_invariantsandpost_invariantsasconstreferences is a good practice to avoid unnecessary copying and to indicate that the function will not modify the passed objects. This change improves performance and readability without affecting the function's behavior.
115-116: LGTM!The changes made to the
print_reportfunction improve readability and performance:
- Explicitly declaring
print_line_infoasconst boolenhances readability and clarifies the intent of the parameter.- Using
const auto&in the loop ensures that the messages are accessed without unnecessary copies, which can improve performance.These changes do not affect the function's behavior.
Also applies to: 119-119
137-138: LGTM!Passing
pre_invariantsandpost_invariantsasconstreferences is a good practice to avoid unnecessary copying and to indicate that the function will not modify the passed objects. This change improves performance and readability without affecting the function's behavior.
151-151: LGTM!The changes made to the
get_ebpf_reportfunction improve performance and readability:
- Passing
infoas aconstreference is a good practice to avoid unnecessary copying and to indicate that the function will not modify the passed object.- Using
std::moveto pass theentry_domobject torun_forward_analyzeris an optimization that avoids unnecessary copying and allows the object to be moved instead.These changes do not affect the function's behavior.
Also applies to: 161-161
src/crab/wto.cpp (7)
12-28: LGTM!The new
operator>overload forwto_nesting_tcorrectly checks if one nesting is a superset of another by comparing the sizes and contents of the nesting structures. The implementation is efficient and the logic is sound.
Line range hint
31-40: Optimization: Usingemplaceinstead ofpush.The change from
pushtoemplaceforvisit_args_tinstances is an optimization that reduces unnecessary copies, improving the efficiency of stack operations. The logic of the function remains unaltered.
Line range hint
56-69: Const-correctness: Addingconstqualifier.The addition of
constqualifier todataandcontaining_cyclepromotes better const-correctness and potentially improves performance by signaling that these variables will not be modified. The logic of the function remains unaltered.
197-218: LGTM!The new
headfunction correctly retrieves the head of the component containing a given label. It handles various scenarios such as the label not being in any cycle, the label being the head of a cycle, and retrieving the head of the parent cycle. The implementation is efficient and the logic is sound.
220-226: LGTM!The new
collect_headsfunction correctly collects the heads of nested components containing a given label. It uses theheadfunction to recursively retrieve the heads, starting from the head of the component containing the given label and continuing until there are no more parent components. The implementation is efficient and the logic is sound.
230-237: Optimization: Caching the results.The changes to the
nestingfunction introduce a caching mechanism that improves performance by avoiding recomputation of the nesting for the same label. The logic of the function remains unaltered.Regarding the static analysis hint about the function being unused, it can be ignored as it is likely a false positive. The
nestingfunction is part of the public API and may be used externally.Tools
cppcheck
[style] 230-230: The function 'nesting' is never used.
(unusedFunction)
158-175: Handling different component types.The changes to the
operator<<(std::ostream&, wto_cycle_t&)function improve the output functionality by correctly handling different component types. The use ofstd::visitensures that the appropriate output function is called for each component type, whether it is awto_cycle_tor not. The logic is sound and the implementation is effective.src/crab/type_domain.cpp (15)
20-34: LGTM!The
add_extra_invariantfunction correctly adds extra invariants to theextra_invariantsmap based on the presence of a specific type in either thedstorsrcdomain. The logic is sound and the implementation is clear.
36-82: LGTM!The
selectively_join_based_on_typefunction correctly performs a selective join operation on two domains while preserving type-specific variables. The logic is well-explained in the comments and the implementation follows the described steps accurately.
84-86: LGTM!The
assign_typefunction correctly assigns the provided type to the type variable of the given register in the domain.
88-90: LGTM!The
assign_typefunction correctly assigns the type of the source register to the type variable of the destination register in the domain.
92-94: LGTM!The
assign_typefunction correctly assigns the type of the given register to the provided optional variable in the domain.
96-98: LGTM!The
assign_typefunction correctly assigns the provided number to the optional variable in the domain.
100-102: LGTM!The
assign_typefunction correctly assigns the provided optional linear expression to the type variable of the given register in the domain.
104-104: LGTM!The
havoc_typefunction correctly removes the type variable of the given register from the domain.
106-112: LGTM!The
get_typefunction correctly retrieves the type of the given register from the domain. It handles the case where the type is not a singleton by returningT_UNINIT.
114-120: LGTM!The
get_typefunction correctly retrieves the type of the given variable from the domain. It handles the case where the type is not a singleton by returningT_UNINIT.
122-122: LGTM!The
get_typefunction correctly returns the integer value of the given number.
125-131: LGTM!The
has_typefunction correctly checks if the given type is within the range of the register's type variable in the domain. It handles the case where the interval is top and uses appropriate default values for non-numeric bounds.
133-139: LGTM!The
has_typefunction correctly checks if the given type is within the range of the variable's interval in the domain. It handles the case where the interval is top and uses appropriate default values for non-numeric bounds.
141-143: LGTM!The
has_typefunction correctly checks if the given number is equal to the given type.
145-167: LGTM!src/crab/ebpf_domain.hpp (13)
12-12: LGTM!The inclusion of the
crab/type_domain.hppheader aligns with the goal of encapsulating type-related functionality within theebpf_domain_tclass.
18-18: LGTM!The introduction of the
NumAbsDomaintype alias improves code readability and aligns with the goal of simplifying theebpf_domain_tconstructor.
25-25: LGTM!The modification of the constructor to use the
NumAbsDomaintype alias is consistent with the introduction of the alias and improves code consistency.
36-38: LGTM!The introduction of the three-way comparison operator
operator<=>enhances the comparison capabilities ofebpf_domain_t, while the modification ofoperator==to use= defaultleverages the compiler-generated equality operator. The blank line improves code readability.
45-47: LGTM!The addition of
constqualifiers to thewiden,widening_thresholds, andnarrowmethods improves the const-correctness of theebpf_domain_tclass and clarifies the intent of these methods to users.
51-51: LGTM!The addition of the
constqualifier to theget_loop_count_upper_boundmethod improves the const-correctness of theebpf_domain_tclass and clarifies the intent of the method to users.
55-55: LGTM!The addition of the
constqualifier to theto_setmethod improves the const-correctness of theebpf_domain_tclass and clarifies the intent of the method to users.
78-78: LGTM!The addition of the
constqualifier to theoperator()overload forUndefinedimproves the const-correctness of theebpf_domain_tclass and clarifies the intent of the method to users.
87-87: LGTM!The modification of the
initialize_loop_countermethod to take aconstreference tolabel_tcan improve performance by avoiding unnecessary copies and aligns with the goal of improving parameter handling.
99-105: LGTM!The modifications of the
applymethods to takeconstreferences tonumber_tcan improve performance by avoiding unnecessary copies and align with the goal of improving parameter handling. The blank line improves code readability.
131-137: LGTM!The modifications of the
bitwise_xor,shl,lshr, andashrmethods to takeconstreferences tonumber_t,Reg, andlinear_expression_tcan improve performance by avoiding unnecessary copies and align with the goal of improving parameter handling.
162-166: LGTM!The addition of the
constqualifier to theget_map_key_size,get_map_value_size, andget_map_max_entriesmethods improves the const-correctness of theebpf_domain_tclass and clarifies the intent of these methods to users.
172-192: LGTM!The modifications of the
require,check_access_stack,check_access_context,check_access_packet,check_access_shared,recompute_stack_numeric_size, anddo_store_stackmethods to take references todomains::NumAbsDomainandNumAbsDomaincan improve performance by avoiding unnecessary copies. The addition of theconstqualifier to the relevant methods improves the const-correctness of theebpf_domain_tclass and clarifies the intent of these methods to users. These changes align with the goals of improving parameter handling and enhancing const-correctness.src/linux/linux_platform.cpp (6)
147-149: LGTM!The changes to the function parameters and the initialization of
bpf_load_map_defimprove readability and align with modern C++ practices.Also applies to: 151-151, 153-153
176-176: LGTM!Declaring
innerasconstcan help prevent accidental modifications and improves code clarity.
186-186: LGTM!Passing
bpf_cmdas aconstreference can improve performance by avoiding unnecessary copies.
193-194: LGTM!Passing the parameters as
constenhances clarity about which parameters are intended to be immutable.
227-227: LGTM!Taking
map_fdas aconst intreinforces the idea that this value should not be modified within the function.
135-135: LGTM!Using
std::size(linux_map_types)in the condition check enhances readability and reduces the risk of errors related to size calculations.src/main/check.cpp (2)
24-25: LGTM!The change from C-style cast to
reinterpret_castenhances type safety and readability, aligning with modern C++ practices.
56-56: LGTM!The change to accept
const std::string&for thedesired_programparameter improves performance by avoiding unnecessary copies and clarifies that the function does not modify the input string. This enhances type safety and code clarity.src/test/test_conformance.cpp (1)
9-10: LGTM!The changes to the
test_conformancefunction signature and the use ofconstreferences for local variables and loop iteration contribute to more efficient and safer code without altering the core functionality.Also applies to: 13-14, 20-20
src/crab_utils/bignums.hpp (13)
21-23: LGTM!The
is_enumconcept is a nice addition that leverages C++20 features to constrain template parameters to enum types. It is well-defined and provides a clear way to enforce type requirements.
28-31: LGTM!The new constructors for
number_tare a great addition. They provide convenient ways to initialize the class from integral and enum types while leveraging C++20 concepts to enforce type constraints. Explicitly defaulting the default constructor is also a good practice for clarity.
37-39: LGTM!The updated error message in the
int64_tcast operator correctly refers tonumber_t, which is consistent with the class rename. Replacing the C-style cast withstatic_castis also a good practice for type safety and explicitness.
45-47: LGTM!Similar to the previous cast operator, the updated error message in the
uint64_tcast operator correctly refers tonumber_t, which is consistent with the class rename. Replacing the C-style cast withstatic_castis also a good practice for type safety and explicitness.
53-55: LGTM!The updated error message in the
int32_tcast operator correctly refers tonumber_t, which is consistent with the class rename. Replacing the C-style cast withstatic_castis also a good practice for type safety and explicitness.
61-63: LGTM!Similar to the previous cast operators, the updated error message in the
uint32_tcast operator correctly refers tonumber_t, which is consistent with the class rename. Replacing the C-style cast withstatic_castis also a good practice for type safety and explicitness.
106-111: LGTM!The
cast_to_uint64function now usesstatic_castinstead of C-style casts, which is a good practice for type safety and explicitness. The updated error message correctly refers tonumber_t, which is consistent with the class rename.
119-122: LGTM!The
truncate_to_uint64function now usesstatic_castinstead of C-style casts, which is a good practice for type safety and explicitness.
129-134: LGTM!The
cast_to_uint32function now usesstatic_castinstead of C-style casts, which is a good practice for type safety and explicitness. The updated error message correctly refers tonumber_t, which is consistent with the class rename.
140-140: LGTM!The
truncate_to_uint32function now usesstatic_castinstead of C-style casts, which is a good practice for type safety and explicitness.
147-152: LGTM!The
cast_to_sint64function now usesstatic_castinstead of C-style casts, which is a good practice for type safety and explicitness. The updated error message correctly refers tonumber_t, which is consistent with the class rename.
160-163: LGTM!The
truncate_to_sint64function now usesstatic_castinstead of C-style casts, which is a good practice for type safety and explicitness. The updated comment correctly refers tonumber_t, which is consistent with the class rename.
304-315: LGTM!Replacing the comparison operators with the C++20 three-way comparison operator (
<=>) is a great improvement. It simplifies the implementation and improves readability. Explicitly defaulting the equality operator is also a good practice for clarity.src/crab/split_dbm.hpp (5)
Line range hint
53-64: LGTM!The renaming of the
Weighttype tonumber_timproves code readability and maintainability by standardizing type usage.
66-72: LGTM!The renaming of the
Weighttype tonumber_timproves code readability and maintainability by standardizing type usage.
Line range hint
125-135: LGTM!The removal of the
variable_t xparameter simplifies the function calls and potentially allows for more streamlined handling of linear expressions within theSplitDBMclass.
197-198: LGTM!The replacement of
operator<=withoperator<=>enhances the comparison logic, allowing for more nuanced ordering ofSplitDBMinstances. The addition of thelessmethod supports this new comparison logic.
254-254: LGTM!The addition of
constqualifiers to thevariable_tparameters in theassignmethods enforces const correctness, enhancing the safety and clarity of the code by preventing unintended modifications to the arguments.Also applies to: 256-256
src/asm_marshal.cpp (17)
13-13: LGTM!Adding
constto the function parameter is a good practice to indicate that the function does not modify the parameter.
33-33: LGTM!Adding
constto the function parameter is a good practice to indicate that the function does not modify the parameter.
58-66: LGTM!The changes improve the function:
- Adding
constto the parameter indicates that the function does not modify it.- Adding a default case ensures that the function always returns a value, improving its robustness.
70-70: LGTM!Adding
constto the function parameter is a good practice to indicate that the function does not modify the parameter.
90-90: LGTM!Adding
constto the function parameters is a good practice to indicate that the function does not modify them.
103-103: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
108-108: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
Line range hint
110-126: LGTM!The changes improve the
operator()method forBin:
- Making the method
constindicates that it does not modify the state of theMarshalVisitorinstance.- Adding
constto therightparameter in the lambda functions is a good practice to indicate that the lambdas do not modify the parameter.
131-131: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
176-176: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
184-184: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
192-192: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
200-200: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
204-204: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
206-206: LGTM!Making the
operator()methodconstis a good practice to indicate that it does not modify the state of theMarshalVisitorinstance.
208-224: LGTM!The changes improve the
operator()method forJmp:
- Making the method
constindicates that it does not modify the state of theMarshalVisitorinstance.- Adding
constto therightparameter in the lambda functions is a good practice to indicate that the lambdas do not modify the parameter.- Adding
constto theimmvariable is a good practice to indicate that the variable is not modified after initialization.
Line range hint
233-247: LGTM!The changes improve the
operator()method forMem:
- Making the method
constindicates that it does not modify the state of theMarshalVisitorinstance.- Adding
constto theaccessvariable is a good practice to indicate that the variable is not modified after initialization.- Adding
constto thesrcmember of theresvariable is a good practice to indicate that the member is not modified after initialization.src/assertions.cpp (13)
19-19: LGTM!Passing the
Valueparameter by const reference avoids unnecessary copies and clearly communicates the intent of not modifying the argument.
21-21: LGTM!Similar to the
regfunction, passing theValueparameter by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument.
32-32: LGTM!Using
std::movefor theinfoandlabelparameters in the constructor is an improvement that avoids unnecessary copies and transfers ownership to theAssertExtractorinstance. This change aligns with the best practices for move semantics in modern C++.
44-44: LGTM!Changing the
IncrementLoopCounterparameter to be passed by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
120-120: LGTM!Similar to the previous changes, modifying the
CallLocalparameter to be passed by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
130-130: LGTM!Modifying the
Conditionparameter to be passed by const reference in theexplicatefunction is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
155-155: LGTM!Modifying the
Assumeparameter to be passed by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
157-157: LGTM!Similar to the previous changes, modifying the
Jmpparameter to be passed by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
164-164: LGTM!The changes made to the
operator()overload forMemare improvements that align with best practices in C++:
Modifying the
Memparameter to be passed by const reference avoids unnecessary copies and clearly communicates the intent of not modifying the argument.Introducing
constqualifiers for local variablesbasereg,width, andoffsetensures they are not accidentally modified and improves code clarity.These changes contribute to better performance, const-correctness, and code readability.
Also applies to: 166-166, 168-168, 171-171
191-191: LGTM!Modifying the
Atomicparameter to be passed by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
205-205: LGTM!Similar to the previous changes, modifying the
Unparameter to be passed by const reference is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.
207-207: LGTM!The changes made to the
operator()overload forBinare improvements that align with best practices in C++:
Modifying the
Binparameter to be passed by const reference avoids unnecessary copies and clearly communicates the intent of not modifying the argument.Introducing
constqualifiers for local variablessrcandis_signedensures they are not accidentally modified and improves code clarity.These changes contribute to better performance, const-correctness, and code readability.
Also applies to: 214-214, 220-220, 243-244
255-255: LGTM!Modifying the
std::optional<label_t>parameter to be passed by const reference in theget_assertionsfunction is an improvement that avoids unnecessary copies and clearly communicates the intent of not modifying the argument. This change aligns with the best practices for performance and const-correctness in C++.src/asm_syntax.hpp (5)
23-24: LGTM!Using
std::movefor thestack_frame_prefixparameter in the constructor is a good optimization. It avoids unnecessary copying and transfers ownership of the string resources to the member variable, improving performance. This change aligns with modern C++ best practices for efficient resource management.
36-41: Looks good!Simplifying the equality operator for
label_tby removing the explicit reference tolabel_t::exitmakes the code more concise and easier to read. The change does not affect the functionality as the equality operator is defaulted. This improvement enhances code maintainability.
142-142: Good practice!Default initializing the
opmember of theUnstruct is a good practice. It ensures that the member has a well-defined initial state, preventing potential issues related to uninitialized variables. This change enhances code safety and robustness.
281-281: Good practice!Default initializing the
opmember of theAtomicstruct is a good practice. It ensures that the member has a well-defined initial state, preventing potential issues related to uninitialized variables. This change enhances code safety and robustness.
409-410: LGTM!Using
std::movefor thecstparameter in the constructor of theAssertstruct is a good optimization. It avoids unnecessary copying and transfers ownership of theAssertionConstraintobject to the member variable, improving performance. This change aligns with modern C++ best practices for efficient resource management.src/crab_utils/adapt_sgraph.hpp (2)
37-37: LGTM!The changes in the
TreeSMapclass are beneficial:
- The simplified type declaration of
_empty_iterusingautoimproves readability and maintainability.- The addition of
constqualifiers to function parameters enhances code safety by indicating that these functions do not modify their parameters.Also applies to: 122-122, 127-127, 136-136, 139-139
148-148: LGTM!The changes in the
AdaptGraphclass are positive:
- The
Weighttype alias change tonumber_tmay reflect a shift in the underlying data representation or a simplification of the type system.- The addition of
constqualifiers to function parameters enhances code safety by indicating that these functions do not modify their parameters.- Updating the
operator<<function to accept a const reference allows printing a const graph without requiring a non-const reference, which is a good practice.Also applies to: 233-233, 274-274, 278-278, 286-286, 290-290, 326-326, 332-332, 374-374, 402-402, 411-411, 418-418, 434-434, 442-442, 451-451
src/asm_cfg.cpp (8)
28-28: LGTM!Updating the function to accept a const reference parameter is a good practice. It avoids unnecessary copying and clearly indicates that the function does not modify the input.
130-130: LGTM!The function signature changes and the update at line 157 are correct and improve the code quality.
Also applies to: 157-157
186-186: LGTM!Updating the function to accept a const reference parameter is a good practice. It avoids unnecessary copying and clearly indicates that the function does not modify the input.
211-211: LGTM!Updating the function to accept a const reference parameter is a good practice. It avoids unnecessary copying and clearly indicates that the function does not modify the input.
Line range hint
243-262: LGTM!The changes to use structured bindings and uniform initialization syntax improve code readability and maintainability.
272-272: LGTM!The function signature change and the use of
std::ranges::all_ofimprove code quality and readability.Also applies to: 279-280
357-358: LGTM!Updating the function to accept const reference and const value parameters is a good practice. It improves performance and clearly indicates that the function does not modify the inputs.
Line range hint
1-380: Reviewed the remaining code segments.The remaining code segments in the file have been reviewed and do not require additional comments.
src/crab/interval.cpp (6)
16-16: LGTM!The use of
constreference improves performance and readability by avoiding unnecessary copies and emphasizing the immutability ofc.
50-50: LGTM!The use of
std::minandstd::maxwith initializer lists enhances code clarity and consistency.
97-97: LGTM!The use of
std::minandstd::maxwith initializer lists enhances code clarity and consistency.
144-144: LGTM!The use of
std::minandstd::maxwith initializer lists enhances code clarity and consistency.
170-171: LGTM!The use of
std::minandstd::maxwithabsenhances code clarity and consistency in computing the minimum and maximum absolute values of the divisor bounds.
257-259: LGTM!The use of
constvariables for storing the results ofsingleton(),ub().number(),lb().number(), or the dereferenced value ofshiftreinforces the immutability of these values and improves code clarity.Also applies to: 284-285, 290-291, 294-294, 309-310, 324-325, 349-350, 374-375, 385-386
src/ebpf_yaml.cpp (5)
32-34: LGTM!The addition of the
constqualifier to theplatform_specific_typeparameter is a good practice to indicate that the value will not be modified within the function.
36-38: LGTM!The addition of the
constqualifier to thenparameter is a good practice to indicate that the value will not be modified within the function.
Line range hint
66-72: LGTM!The addition of the
constqualifier to thecontext_descriptorparameter is a good practice to indicate that the value will not be modified within the function.
307-308: LGTM!The change in the parameter types from
std::vector<uint8_t>tostd::vector<std::byte>is a good practice to usestd::bytefor representing raw byte data.
314-314: Verify the impact ofvector_ofremoval.The function is using
vector_ofto convertprogram_bytestoebpf_instvector, but the implementation ofvector_ofhas been removed in this change. This could lead to compilation errors if it's not replaced with an alternative implementation.Run the following script to verify the usage of
vector_ofin the codebase:src/crab/cfg.hpp (17)
17-17: LGTM!The inclusion of the
<ranges>header is a good step towards modernizing the codebase and leveraging C++20 features for more expressive and efficient code.
19-19: LGTM!The inclusion of the
<utility>header is necessary for using utility functions and classes likestd::move,std::forward,std::pair, etc.
49-52: LGTM!The simplification of iterator type aliases by removing the
typenamekeyword improves readability and aligns with modern C++ practices (C++17 and later).
71-71: LGTM!The use of
std::movefor the_labelparameter in the constructor is a good performance optimization, as it avoids unnecessary copies and indicates that the constructor is taking ownership of the passed label.
148-148: LGTM!The use of
std::ranges::movein themove_backmethod is a good modernization step, as it improves code clarity and potentially performance by leveraging C++20 range-based operations.
168-171: LGTM!The simplification of iterator type aliases by removing the
typenamekeyword improves readability and aligns with modern C++ practices (C++17 and later).
227-228: LGTM!The simplification of iterator type aliases by removing the
typenamekeyword improves readability and aligns with modern C++ practices (C++17 and later).
235-235: LGTM!The simplification of the
binding_ttype alias by removing thetypenamekeyword improves readability and aligns with modern C++ practices (C++17 and later).
242-245: LGTM!The simplification of iterator type aliases by removing the
typenamekeyword improves readability and aligns with modern C++ practices (C++17 and later).
Line range hint
291-296: LGTM!The use of structured bindings in the
get_nodemethod improves code clarity and readability by leveraging modern C++ features (C++17 and later).
Line range hint
300-305: LGTM!The use of structured bindings in the
get_nodemethod improves code clarity and readability by leveraging modern C++ features (C++17 and later).
Line range hint
310-315: LGTM!The use of structured bindings in the
insertmethod improves code clarity and readability by leveraging modern C++ features (C++17 and later).
343-344: LGTM!The use of structured bindings in the range-based for loop improves code clarity and readability by leveraging modern C++ features (C++17 and later).
377-379: LGTM!The use of
std::ranges::views::keysin thelabelsmethod is a good modernization step, as it improves code clarity and potentially performance by leveraging C++20 range-based operations.
389-390: LGTM!The use of type deduction for the
worklistset improves code clarity and readability by leveraging modern C++ features (C++17 and later).
411-414: LGTM!The use of a range-based for loop with structured bindings improves code clarity and readability by leveraging modern C++ features (C++11 and later for range-based for loops, C++17 and later for structured bindings).
425-425: LGTM!The use of
std::ranges::sortin thesorted_labelsmethod is a good modernization step, as it improves code clarity and potentially performance by leveraging C++20 range-based operations.src/asm_parse.cpp (18)
89-89: LGTM!The change improves type safety by explicitly converting the result of
boost::lexical_casttouint8_tusingstatic_cast.
93-94: LGTM!The change improves code clarity by indicating that the
lddwparameter is not modified within the function.
98-98: LGTM!The change improves type safety by explicitly converting the result of
std::stolltouint64_tusingstatic_cast.
104-104: LGTM!The change improves type safety by explicitly converting the result of
std::stoltouint64_tusingstatic_cast.
106-106: LGTM!The change improves type safety by explicitly converting the result of
std::stoulto the desired type using a series ofstatic_casts.
111-111: LGTM!The change improves code clarity by removing the unnecessary cast, as the return type of
std::stollmatches the return type of the function.
113-113: LGTM!The change improves code clarity by removing the unnecessary cast, as the return type of
std::stoullmatches the return type of the function.
125-129: LGTM!The change improves code clarity by using a
constvariable foroffsetand using the ternary operator to determine the sign based on thesignparameter.
136-138: LGTM!The change improves code clarity by removing trailing spaces from the
textstring.
199-199: LGTM!The change improves type safety by explicitly converting the result of
immtoint32_tusingstatic_cast.
205-205: LGTM!The change improves type safety by explicitly converting the result of
immtoint32_tusingstatic_cast.
207-208: LGTM!The change improves code clarity by explicitly returning
Undefined{}if none of the previous conditions are met.
213-213: LGTM!The change improves code clarity by explicitly converting
m[1]toconst std::string&before checking the first character.
223-224: LGTM!The change improves code clarity by explicitly converting
m[1]toconst std::string&before checking the first character.
227-228: LGTM!The change improves code clarity by explicitly returning
Undefined{}if none of the previous conditions are met.
235-235: LGTM!The change improves code clarity by declaring
seen_labelsasconst, indicating that it should not be modified after initialization.
241-243: LGTM!The change improves code clarity by using the
containsmethod to check for the presence of*next_labelinseen_labels.
266-266: LGTM!The change improves type safety by explicitly converting the result of
boost::lexical_cast<uint16_t>touint8_tusing `static_src/asm_ostream.cpp (16)
21-21: LGTM!Adding
constto thekindparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
34-34: LGTM!Adding
constto thekindparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
44-44: LGTM!Adding
constto theargparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
49-49: LGTM!Adding
constto theargparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
58-58: LGTM!Adding
constto theopparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
83-83: LGTM!Adding
constto theopparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
103-103: LGTM!Adding
constto thewparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
105-105: LGTM!Adding
constto thetsparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
126-126: LGTM!Adding
constto thetsparameter is a good practice to indicate that the function does not modify the parameter and to prevent accidental modifications.
Line range hint
143-155: LGTM!The code correctly checks if
a.widthis equal to zero by comparing it with an emptyImmstruct casted toValue. It then prints appropriate messages based on the result of this check.
161-162: LGTM!The code correctly uses the ternary operator to choose the appropriate comparison operator (
>=or>) based on the value ofa.can_be_zero. This ensures the correct comparison is made based on whether zero is an allowed value.
166-167: LGTM!The code correctly retrieves the helper prototype using
global_program_info->platform->get_helper_prototype(a.func)and prints it to the output stream. This is likely done to get information about the function signature or other metadata.
193-193: LGTM!The code correctly converts
tc.typesto a string using theto_stringfunction and stores the result in aconst stringvariable namedtypes. This is likely done to use the string representation oftc.typesin further operations.
194-194: LGTM!The code correctly checks if the first character of
typesis{and uses the appropriate comparison operator (inor==) based on that. This is likely done to handle different comparison semantics based on whethertypesrepresents a set or a single value.Tools
cppcheck
[error] 194-194: Syntax Error
(internalAstError)
201-201: LGTM!The code correctly uses
std::visitto visit the variantaand print it to the output streamos. The lambda function capturesosby reference and takes the variant as a generic parameter, allowing printing different types stored in the variant using a single function call.
212-212: LGTM!The code correctly defines an
operator()function as a const member function of theInstructionPrinterVisitorclass. It takes aconst Undefined¶meter and prints itsopcodemember to the output stream. This function is likely used as a visitor for theUndefinedtype in the variant.src/asm_files.cpp (11)
23-30: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.- Changing the cache access method from
counttocontainsimproves readability and aligns with modern C++ practices.- Using
static_castfor type conversion enhances type safety and clarity.
Line range hint
33-40: LGTM!The change in this function is a good improvement:
- Using
constqualifier for the parameter promotes immutability and signals intent.
44-44: LGTM!The change in this function is a minor but meaningful improvement:
- Using
constfor themaps_prefixvariable improves code quality.
48-49: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.
61-62: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.
76-79: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.- Using
constfor thesvariable improves code quality.Also applies to: 82-82
113-116: LGTM!The change in this function is a minor improvement:
- Renaming the
desired_sectionparameter tosectiondoes not significantly impact the functionality or readability of the code.
125-128: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.- Using
constfor thesection_indexandsymbol_countvariables improves code quality.
150-153: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.
156-158: LGTM!The changes in this function are good improvements:
- Using
constqualifiers for parameters promotes immutability and signals intent.- Using
static_castfor type conversion enhances type safety and clarity.- Changing the cache access method from
counttocontainsimproves readability and aligns with modern C++ practices.Also applies to: 172-172, 183-183, 266-266
Line range hint
193-306: LGTM!The changes in this function are good improvements:
- Renaming the
desired_sectionparameter tosectiondoes not significantly impact the functionality or readability of the code.- Using
static_castfor type conversion enhances type safety and clarity.- Using the
containsmethod instead ofcountfor checking map existence improves readability and aligns with modern C++ practices.- Checking function call instructions using
inst.opcode == INST_OP_CALL && inst.src == INST_CALL_LOCALis more explicit and clear.Also applies to: 346-347, 380-385, 401-401
src/crab/interval.hpp (6)
17-25: LGTM!The function logic for combining
std::partial_orderingvalues is correct and handles all the cases appropriately.
46-46: Excellent use of variadic templates!The change to use a variadic template in the
minmethod improves the flexibility and conciseness of the code. The logic remains correct.
47-47: Excellent use of variadic templates!The change to use a variadic template in the
maxmethod improves the flexibility and conciseness of the code. The logic remains correct.
186-203: Excellent use of the three-way comparison operator!The implementation of
operator<=>correctly comparesbound_tobjects and returns the appropriatestd::strong_orderingvalue. The separate handling of infinite and finite bounds optimizes the comparison. The change to returnstd::strong_orderinginstead ofboolimproves the expressiveness and correctness of the comparison operator.
204-204: Good use of the default equality operator!The default implementation of
operator==provided by the compiler is sufficient for comparingbound_tobjects. It correctly compares the_is_infiniteand_nmembers of the objects.
298-315: Excellent implementation of the three-way comparison operator!The
operator<=>method correctly comparesinterval_tobjects and returns the appropriatestd::partial_orderingvalue. It handles the comparison of bottom intervals separately and uses the join of the intervals to determine the ordering when they are not equal. The change to returnstd::partial_orderinginstead ofboolimproves the expressiveness and correctness of the comparison operator.src/crab/array_domain.cpp (14)
6-6: Approved: Including the<ranges>header is a good practice.The
<ranges>header provides useful range-based algorithms and views, enabling more expressive and potentially more efficient code when using C++20 range features.
16-16: Skipped: Minor update to the include path.The change to the include path for "crab/array_domain.hpp" appears to be a minor update. Without additional context, it's unclear why this change was made. Skipping the review of this line.
26-26: Approved: Improved variable declaration.Declaring the variable
numasconstprevents unintended modifications and improves code clarity. Explicitly specifying the type aslinear_expression_tenhances code readability.
40-41: Approved: Enhanced constructors foroffset_t.Using
constin the constructor parameters prevents unintended modifications and improves code clarity. Adding a new constructor that takes bothindex_tandprefix_lengthprovides flexibility in initializing theoffset_tobject.
49-49: Approved: Improvedoperator[]inoffset_t.Marking the
operator[]asconstindicates that it does not modify the object's state, improving code clarity. Returningindex_tinstead ofintprovides consistency with the type used internally.
62-76: Approved: Enhancedradix_substrfunction.Using
const offset_t&as a parameter prevents unnecessary copying and indicates that the function does not modify thekeyobject. Declaringmaskasuint64_tprovides clarity about its type. Usingstatic_castfor type conversions improves code readability and ensures explicit type conversions.
82-85: Approved: Improved variable declarations inradix_join.Using
const autoforvalue1andvalue2ensures they are not modified and deduces their types from thestatic_castexpressions. Declaringvalueasconst index_tandprefix_lengthasconst intprevents unintended modifications and provides clarity about their types.
Line range hint
110-135: Approved: Enhancedcell_tclass.Using
constin the constructor and function parameters prevents unintended modifications and improves code clarity. Returninginterval_tfromto_intervalprovides a more specific return type. Takingconst data_kind_tas a parameter inget_scalarindicates that the function does not modify thekindobject.
151-154: Approved: Improvedoverlapfunction.Using
const offset_t&as a parameter prevents unnecessary copying and indicates that the function does not modify theoobject. Declaringx,y, andresasconstprevents unintended modifications and improves code clarity.
173-175: Approved: Enhancedsymbolic_overlapfunction.Using
const linear_expression_t&as parameters prevents unnecessary copying and indicates that the function does not modify thesymb_lbandsymb_ubobjects. Declaringxasconstprevents unintended modifications and improves code clarity.
Line range hint
197-203: Approved: Improvedcompare_binding_tstruct.Using
constin theoperator()parameters prevents unintended modifications and improves code clarity. Marking theoperator()functions asconstindicates that they do not modify the object's state.
258-259: Approved: Enhancedbottom()andtop()functions.Returning
offset_map_tinstead ofvoidprovides a more explicit and consistent interface for these functions.
263-264: Approved: Improvedremove_cellfunction.Using
const cell_t&as a parameter prevents unnecessary copying and indicates that the function does not modify thecobject. Declaringkeyasconstprevents unintended modifications and improves code clarity.
302-330: Approved: Enhancedoffset_map_tclass functions.Using
constin function parameters prevents unintended modifications and improves code clarity. Returningstd::optional<cell_t>fromget_cellprovides a clear indication of whether a cell was found or not. Declaringkeyasconstprevents unsrc/asm_unmarshal.cpp (14)
13-13: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
24-24: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
35-40: LGTM!The changes to the
InvalidInstructionstruct are good practices:
- Marking the struct as
finalprevents unintended inheritance and ensures that the exception type remains unchanged.- Adding
constqualifiers to the constructor parameters prevents unintended modifications.
43-45: LGTM!Marking the
UnsupportedMemoryModestruct asfinalis a good practice to prevent unintended inheritance and ensure that the exception type remains unchanged.
47-47: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
58-58: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
79-80: LGTM!Adding the
constqualifiers to the parameters is a good practice to prevent unintended modifications.
88-88: LGTM!Marking the
notemethod asconstis a good practice to indicate that it does not modify the object's state.
89-89: LGTM!Marking the
note_next_pcmethod asconstis a good practice to indicate that it does not modify the object's state.
95-96: LGTM!The changes to the
getAluOpmethod are good practices:
- Adding the
constqualifiers to the parameters prevents unintended modifications.- Adding the
[[nodiscard]]attribute to the return value indicates that the return value should not be ignored.
220-221: LGTM!The changes to the
getAtomicOpmethod are good practices:
- Adding the
constqualifiers to the parameters prevents unintended modifications.- Marking the method as
staticindicates that it does not depend on the object's state.
235-235: LGTM!The changes to the
sign_extendmethod are good practices:
- Adding the
constqualifier to the parameter prevents unintended modifications.- Marking the method as
staticindicates that it does not depend on the object's state.
237-237: LGTM!The changes to the
zero_extendmethod are good practices:
- Adding the
constqualifier to the parameter prevents unintended modifications.- Marking the method as
staticindicates that it does not depend on the object's state.
239-239: LGTM!The changes to the
getBinValuemethod are good practices:
- Adding the
constqualifiers to the parameters prevents unintended modifications.- Marking the method as
staticindicates that it does not depend on the object's state.src/test/test_verify.cpp (6)
24-27: LGTM!Good use of
constto prevent unintended modifications toraw_progsandraw_prog.
39-41: LGTM!Good use of
constto prevent unintended modifications toraw_progsandraw_prog.
55-56: LGTM!Good use of
constto prevent unintended modifications toraw_progsandraw_prog.
110-112: LGTM!Good use of
constto prevent unintended modifications toraw_progsandraw_prog.
22-29: Already reviewed.See previous review comment for lines 22-29.
37-49: Already reviewed.See previous review comment for lines 37-49.
src/crab/split_dbm.cpp (19)
11-11: LGTM!Making the
vparameterconstis a good practice to indicate that the function does not modify the parameter.
14-14: LGTM!Returning
{}is a more concise way to return an emptystd::optional.
20-20: LGTM!Making the
vparameterconstis a good practice to indicate that the function does not modify the parameter.
33-33: Good optimization!Using
emplace_backinstead ofpush_backcan potentially improve performance by constructing the element in-place and avoiding an extra copy or move operation.
47-47: LGTM!Taking the
nparameter byconstreference is a good practice to avoid unnecessary copies. The change fromz_numbertonumber_tsuggests an update to the number representation type.
56-56: LGTM!Taking the
nparameter byconstreference is a good practice to avoid unnecessary copies. The change fromz_numbertonumber_tsuggests an update to the number representation type.
61-67: LGTM!The changes to the
diffcsts_of_assignfunction signature look good:
- Removing the
xparameter suggests that it is no longer needed within the function.- Making the
extract_upper_boundsparameterconstis a good practice to indicate that the function does not modify it.
78-78: Nice readability improvement!Using structured bindings to unpack the
std::pairelements improves code readability by providing meaningful names for the unpacked elements.
84-84: LGTM!Using
operator[]directly onthisis a more concise way to get the interval for a variable.
87-87: Good simplification!Using the ternary operator to conditionally select the lower or upper bound of the interval based on the value of
extract_upper_boundsmakes the code more concise compared to an if-else statement.
96-96: Good simplification!Using the ternary operator to conditionally select the lower or upper bound of the interval based on the value of
extract_upper_boundsmakes the code more concise compared to an if-else statement.
103-103: LGTM!Using
Params::convert_NtoWto convert from the number type to the weight type is a good practice. Theoverflowflag is used to handle any potential overflow during the conversion.
118-118: Nice readability improvement!Using structured bindings to unpack the
std::pairelements improves code readability by providing meaningful names for the unpacked elements.
131-131: LGTM!Using brace initialization for the
underflowvariable is a more uniform initialization syntax and can help prevent narrowing conversions.
152-152: Nice readability improvement!Using structured bindings to unpack the
std::pairelements improves code readability by providing meaningful names for the unpacked elements.
157-157: LGTM!Using
operator[]directly onthisis a more concise way to get the interval for a variable.
159-159: Good optimization!Using
y_val.lb()directly is more efficient than callingget_interval(y)and then accessing the lower bound.
175-175: Good optimization!Using
y_val.ub()directly is more efficient than callingget_interval(y)and then accessing the upper bound.
201-201: Nice readability improvement!Using structured bindings to un
src/crab_utils/graph_ops.hpp (14)
93-93: LGTM!The changes to use pre-increment/decrement operators in the iterator are good for performance and readability.
Also applies to: 97-97
107-107: LGTM!The change to use
static_castin thebegin()method is good for type safety and clarity.
617-617: LGTM!The change to use
static_castfor casting the result of the bitwise operation toWeightis good for type safety and clarity.
594-599: LGTM!The changes to streamline the resizing and initialization of vectors and assigning
scratch_szafter the resizing operations are good for readability and maintaining the integrity of the data structure's state.
707-707: LGTM!The change to use
static_castfor casting the result of the bitwise operation tovert_idis good for type safety and clarity.
727-738: LGTM!The changes to move the
indexvariable closer to its usage and use pre-increment in the loop are good for readability and consistency.
795-796: LGTM!The changes to use pre-increment in the loops are good for consistency.
Also applies to: 799-799, 814-814, 828-829
Line range hint
1-1: No changes made to theclose_after_meetfunction.The function logic and implementation remain the same as before.
Line range hint
1-1: No changes made to thechrome_dijkstrafunction.The function logic and implementation remain the same as before.
984-984: LGTM!The change to use
static_castfor casting the size of the graph tosize_tis good for type safety and clarity.
1053-1053: LGTM!The change to use
static_castfor casting the size of the graph tosize_tis good for type safety and clarity.
1105-1105: LGTM!The change to use
static_castfor casting the size of the graph tosize_tis good for type safety and clarity.
1180-1181: LGTM!The changes to use pre-increment in the loops are good for consistency.
Also applies to: 1187-1198, 1207-1207
1278-1278: LGTM!The change to use
static_castfor casting the size of the graph tosize_tis good for type safety and clarity.src/test/test_marshal.cpp (11)
209-211: LGTM!The changes to pass the
platformparameter by const reference look good. The unmarshaling logic and size check remain the same.
218-220: LGTM!The changes to pass the
platformparameter by const reference look good. The unmarshaling logic and size check remain the same.
228-229: LGTM!The changes to pass the
platformparameter by const reference look good. The unmarshaling, re-marshaling, and comparison logic remain the same.
243-246: LGTM!The function logic looks correct and matches the previous version. Using the global
g_ebpf_platform_linuxplatform is acceptable here.
261-264: LGTM!The function logic looks correct and matches the previous version. Using the global
g_ebpf_platform_linuxplatform is acceptable here. The comparison withexpected_result1andexpected_result2handles the 64-bit immediate case correctly.
336-336: LGTM!Changing
wsfromstatic consttostatic constexpris a good improvement. It allows the compiler to treat the array as a compile-time constant, enabling better optimization opportunities.
Line range hint
611-627: Looks good to me!The new
matches_template_instfunction is implemented correctly:
- It checks the
opcodefirst, which is a good optimization since it's the most discriminating field.- For each field, it checks for equality if the template has a specific value, or skips the check if the template has a wildcard.
- The wildcard constants
DST,SRC,MEM_OFFSET,JMP_OFFSET, andIMMare used correctly.- The final return statement is based on all checks passing.
This function will be useful for matching instructions against templates while allowing wildcards.
Line range hint
629-633: Looks good to me!The new
get_template_platformfunction is implemented correctly:
- It starts with a copy of the global
g_ebpf_platform_linuxplatform, which is a good base platform to use.- It then modifies the
supported_conformance_groupsof the platform by adding thegroupsfrom theprevious_template.
- This ensures that the returned platform supports the conformance groups required by the previous template.
- The modified platform is returned, which will be suitable for testing the next template.
This function will be useful for getting a platform that supports the conformance groups of a given template, to be used when testing the next template.
633-653: Looks good to me!The new
check_instruction_dst_variationsfunction is implemented correctly:
- It starts with the
instfrom theprevious_template, which is the base instruction to modify.- It gets the appropriate platform using
get_template_platform, which ensures the platform supports the conformance groups of the previous template.- If
dstisDST(wildcard), it sets it toINVALID_REGISTERand verifies that unmarshaling fails with a "bad register" error.- Otherwise, it increments
dstand checks:
- If there's no
next_templateor the modifiedinstdoesn't match thenext_template, unmarshaling should fail.- If
dstis 1, the error message should indicate a "nonzero dst for register".- Otherwise, the error message should indicate a "bad instruction".
- The
check_unmarshal_instruction_failfunction is used correctly to verify the unmarshaling failures.This function will be useful for testing various invalid
dstvalues between two valid instruction templates.
657-671: Looks good to me!The new
check_instruction_src_variationsfunction is implemented correctly:
- It starts with the
instfrom theprevious_template, which is the base instruction to modify.- It gets the appropriate platform using
get_template_platform, which ensures the platform supports the conformance groups of the previous template.- If
srcisSRC(wildcard), it sets it toINVALID_REGISTERand verifies that unmarshaling fails with a "bad register" error.- Otherwise, it increments
srcand checks:
- If there's no
next_templateor the modifiedinstdoesn't match thenext_template, unmarshaling should fail with a "bad instruction" error.- The
check_unmarshal_instruction_failfunction is used correctly to verify the unmarshaling failures.This function will be useful for testing various invalid
srcvalues between two valid instruction templates.
675-696: Looks good to me!The new
check_instruction_offset_variationsfunction is implemented correctly:
- It starts with the
instfrom theprevious_template, which is the base instruction to modify.- It gets the appropriate platform using
get_template_platform, which ensures the platform supports the conformance groups of the previous template.- If
offsetisJMP_OFFSET(wildcard), it sets it to 0 (invalid jump offset) and verifies that unmarshaling fails with a "src/linux/gpl/spec_prototypes.cpp (3)
Line range hint
2277-2290: LGTM!The function logic is correct, and the implementation is accurate. The change to the function signature to accept a
const int32_tparameter is a good practice to enforce that the input is not modified within the function.
Line range hint
2291-2296: Verify the usage ofget_helper_prototype_linuxin the codebase.The function logic is correct, and the change to the function signature to accept a
const int32_tparameter is a good practice.However, the static analysis hint suggests that this function is never used. Please verify if this is a false positive by checking the usage of this function in the entire codebase. If it is indeed unused, consider removing it to maintain a clean and minimal codebase.
Tools
cppcheck
[style] 2291-2291: The function 'get_helper_prototype_linux' is never used.
(unusedFunction)
Line range hint
2087-2276: LGTM!The change from
consttoconstexprfor theprototypesarray is a good optimization. It allows the compiler to evaluate the array at compile time, potentially improving performance and enabling more optimizations. Since the contents of the array remain unchanged, this is a safe modification.
Signed-off-by: Elazar Gershuni <[email protected]>
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Actionable comments posted: 3
Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Files selected for processing (5)
- src/asm_parse.cpp (9 hunks)
- src/crab_utils/stats.cpp (3 hunks)
- src/crab_utils/stats.hpp (0 hunks)
- src/linux/linux_platform.cpp (5 hunks)
- test-data/stack.yaml (1 hunks)
Files not reviewed due to no reviewable changes (1)
- src/crab_utils/stats.hpp
Additional comments not posted (31)
src/crab_utils/stats.cpp (5)
14-14: LGTM!The removal of the
crab::namespace qualifier simplifies the declaration and enhances readability without affecting the functionality.
15-15: LGTM!The removal of the
crab::namespace qualifier simplifies the declaration and enhances readability without affecting the functionality.
35-35: LGTM!Declaring the
rusagestruct on a separate line improves code readability without affecting the functionality.
37-37: LGTM!The addition of the
constqualifier ensures that the value ofrcannot be modified after initialization, promoting better coding practices and making the intent clearer.
68-68: LGTM!Replacing the C-style cast with a
static_castimproves type safety and clarity, indicating an intentional type conversion and enhancing code maintainability.src/linux/linux_platform.cpp (8)
135-135: LGTM!The change to use
std::size(linux_map_types)for index validation improves code clarity and maintainability. It reduces the likelihood of errors if the size of thelinux_map_typesarray changes in the future.
147-149: LGTM!The changes to the
parse_maps_section_linuxfunction signature improve code clarity and readability:
- The parameters have been reformatted for better readability.
- Passing
map_def_size,map_count, andoptionsasconstclarifies that these parameters are not modified within the function.
151-153: LGTM!The change from zero-initialization to default initialization using
{}forbpf_load_map_defaligns with modern C++ practices. Default initialization using{}is more expressive and clarifies the intent of the code.
176-176: LGTM!Declaring the
innervariable asconstreinforces the immutability of its value post-initialization. This change helps prevent unintended modifications to theinnervariable.
186-186: LGTM!Passing the
bpf_cmdparameter as aconstreference in thedo_bpffunction signature enhances performance by avoiding unnecessary copies. The change also clarifies that thebpf_cmdparameter is not modified within the function.
193-194: LGTM!Passing the parameters as
constin thecreate_map_linuxfunction signature clarifies that these parameters are not modified within the function. The change improves code clarity and helps prevent unintended modifications to the parameters.
Line range hint
201-227: LGTM!Initializing the
bpf_attrvariable using{}instead ofmemsetaligns with modern C++ practices and clarifies the intent of the code. The change improves code clarity and maintainability.
227-235: LGTM!Passing the
map_fdparameter as aconst intin theget_map_descriptor_linuxfunction signature clarifies that this value should remain unchanged within the function. The change improves code clarity and helps prevent unintended modifications to themap_fdparameter.test-data/stack.yaml (1)
27-27: LGTM!The added entry
Numbers -> {[504...505]}in thepostsection is relevant to the test case and facilitates testing or data handling related to the loading of 16-bit values in a little-endian format across multiple variables.src/asm_parse.cpp (17)
89-89: LGTM!The use of
static_castfor explicit type conversion is a good practice.
93-93: LGTM!Adding
constto the function parameter is a good practice to indicate that the parameter value will not be modified inside the function.
94-94: LGTM!Adding
constto the variable is a good practice to indicate that the variable value will not be modified after initialization.
98-98: LGTM!The use of
static_castfor explicit type conversion is a good practice.
104-104: LGTM!The use of
static_castfor explicit type conversion is a good practice.
111-111: LGTM!Removing the unnecessary cast improves code clarity and readability.
113-113: LGTM!Removing the unnecessary cast improves code clarity and readability.
125-125: LGTM!Adding
constto the variable is a good practice to indicate that the variable value will not be modified after initialization.
129-129: LGTM!The simplified ternary operator improves code readability.
136-136: LGTM!Using
size_tfor string positions and lengths is a good practice. Checking againststd::string::nposis the correct way to handle the case whenfind_last_not_ofdoesn't find a match.
144-144: LGTM!Using
boost::lexical_castfor string to integer conversion is a good practice as it provides error handling.
227-227: LGTM!Returning
Undefined{}for unsupported instructions is a way to handle them gracefully.
235-235: LGTM!Using
constfor variables that are not modified after initialization is a good practice.
241-241: LGTM!Using the
containsmethod to check for the presence of an element in a set is more readable and expressive than using thecountmethod.
266-266: LGTM!Removing the unnecessary cast improves code clarity and readability.
319-319: LGTM!Using the
containsmethod to check for the presence of a key in a map is more readable and expressive than using thecountmethod or thefindmethod.
388-388: LGTM!The code is correctly handling the case when the type is
T_NUMby adding a new interval to thenumeric_rangesvector.
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
There was a problem hiding this comment.
Actionable comments posted: 2
Outside diff range comments (2)
src/asm_parse.cpp (2)
Line range hint
141-229: LGTM, but consider refactoring to improve readability and maintainability.The function correctly parses assembly instructions using regular expressions and delegates to other functions for parsing individual components. However, the function is quite large and complex, with many regular expressions that are hard to read.
Consider refactoring the function to improve readability and maintainability:
- Extract the regular expressions into named constants to make them more readable.
- Split the function into smaller functions for each instruction type to reduce complexity.
- Use a lookup table or a switch statement instead of a series of
ifstatements to determine the instruction type.
Line range hint
328-416: LGTM, but consider refactoring to improve readability and maintainability.The function correctly parses a set of linear constraints from strings using regular expressions and constructs
linear_constraint_tobjects using thecrab::dsl_syntaxnamespace. The use of thecrab::dsl_syntaxnamespace helps make the constraint construction more readable. The function throws aruntime_errorif an unknown constraint format is encountered, which is good for catching errors early.However, the function is quite large and complex, with many regular expressions and constraint formats, which could make it difficult to maintain and extend in the future.
Consider refactoring the function to improve readability and maintainability:
- Extract the regular expressions into named constants to make them more readable.
- Split the function into smaller functions for each constraint format to reduce complexity.
- Use a lookup table or a switch statement instead of a series of
ifstatements to determine the constraint format.
Review details
Configuration used: CodeRabbit UI
Review profile: ASSERTIVE
Files selected for processing (6)
- src/asm_ostream.cpp (24 hunks)
- src/asm_parse.cpp (9 hunks)
- src/asm_unmarshal.cpp (26 hunks)
- src/crab/wto.hpp (3 hunks)
- src/linux/linux_platform.cpp (6 hunks)
- src/string_constraints.hpp (2 hunks)
Additional context used
cppcheck
src/asm_ostream.cpp
[error] 194-194: Syntax Error
(internalAstError)
Additional comments not posted (55)
src/string_constraints.hpp (2)
33-33: LGTM!The constructor correctly initializes the
maybe_invmember by moving the input set. The use ofexplicitis appropriate to prevent unintended implicit conversions.
61-61: LGTM!Defaulting the equality operator is a good choice since the
string_invariantstruct only contains a single membermaybe_inv. The compiler-generated default implementation will correctly compare themaybe_invmembers of twostring_invariantinstances for equality.src/crab/wto.hpp (3)
38-56: LGTM!The
wto_nesting_tclass is a well-designed addition that encapsulates the heads of nested components. It follows modern C++ practices and provides useful operators for comparison and output.
88-125: LGTM!The
wto_cycle_tclass is a well-designed addition that represents cycles within the WTO. It follows modern C++ practices and provides useful methods for accessing the head and iterating over components in reverse order.
Line range hint
134-183: LGTM!The modifications to the
wto_tclass significantly improve the implementation by removing the recursive algorithm and introducing new methods for collecting heads and managing nesting. The changes align with modern C++ practices and enhance the clarity and efficiency of the WTO representation.src/linux/linux_platform.cpp (6)
139-139: Improved index validation usingstd::size.Using
std::size(linux_map_types)for index validation is a good practice. It enhances code clarity and reduces the potential for errors by ensuring the index is within the valid range of thelinux_map_typesarray.
151-153: Improved function signature and initialization.The changes to the function signature, making the parameters
const, clarify which parameters are immutable within the function. This enhances code clarity and aligns with const-correctness principles.The initialization of
bpf_load_map_defusing{}instead of zero-initialization aligns with modern C++ practices and improves code clarity by explicitly indicating the intent to default-initialize the object.Also applies to: 157-157
180-180: Improved variable declaration usingconst.Declaring the
innervariable asconstis a good practice. It reinforces the immutability of the variable's value and prevents unintended modifications, enhancing code clarity and reducing the potential for errors.
190-190: Improved parameter passing usingconstreference.Passing the
bpf_cmdparameter as aconstreference is a good practice. It avoids unnecessary copying and clarifies that the value should not be modified within the function, enhancing performance and code clarity.
197-198: Improved function signature usingconstparameters.Declaring the function parameters as
constis a good practice. It clarifies that the values should not be modified within the function and enhances code clarity, aligning with const-correctness principles.
231-231: Improved function signature usingconstparameter.Declaring the
map_fdparameter asconst intis a good practice. It clarifies that the value should not be modified within the function and enhances code clarity, aligning with const-correctness principles.src/asm_parse.cpp (8)
87-93: LGTM!The function is well-named and the logic is correct. It clearly checks if a register is 64-bit based on its prefix and throws an exception for invalid prefixes.
119-119: LGTM!The function correctly uses
std::stollto parse a signed number from a string.
121-121: LGTM!The function correctly uses
std::stoullto parse an unsigned number from a string.
Line range hint
233-265: LGTM!The function correctly parses a sequence of assembly instructions from an input stream, handling labels, empty lines, and undefined instructions. It generates labels for instructions that don't have an explicit label, ensuring that all instructions have a label. The function is straightforward and easy to understand.
268-268: LGTM!The function correctly extracts the register number from a register string using
boost::lexical_castand a cast touint8_t.
Line range hint
418-431: LGTM!The function correctly subtracts two
string_invariantobjects, handling the case where either operand is bottom. It only adds constraints fromthisthat are not present inb, which is the expected behavior of set subtraction. The function is straightforward and easy to understand.
Line range hint
447-471: LGTM!The function correctly outputs a
string_invariantobject to a stream, handling the case where the invariant is bottom. It outputs the constraints in a readable format, with constraints grouped by their base variable and separated by commas. The use offind_first_ofto extract the base variable name is concise and effective. The function is straightforward and easy to understand.
101-116: Consider simplifying the type conversions for non-lddwvalues.The multiple conversions via
int32_tandint64_tseem unnecessary and could potentially lead to loss of precision. Consider simplifying it to a direct conversion fromstd::stoultouint64_t.Apply this diff to simplify the type conversions:
-return Imm{static_cast<uint64_t>(static_cast<int64_t>(static_cast<int32_t>(std::stoul(s, nullptr, base))))}; +return Imm{static_cast<uint64_t>(std::stoul(s, nullptr, base))};Likely invalid or redundant comment.
src/asm_ostream.cpp (15)
21-21: LGTM!Passing the
kindparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
34-34: LGTM!Passing the
kindparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
44-44: LGTM!Passing the
argparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
49-49: LGTM!Passing the
argparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
58-58: LGTM!Passing the
opparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
83-83: LGTM!Passing the
opparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
105-105: LGTM!Passing the
tsparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
126-126: LGTM!Passing the
tsparameter by const reference instead of by value avoids unnecessary copies and aligns with C++ best practices.
143-143: LGTM!Comparing
a.widthwithstatic_cast<Value>(Imm{})instead of directly comparing with zero improves code clarity and expressiveness by explicitly indicating the comparison with an emptyImmobject. The change does not alter the logic of the condition.
161-161: LGTM!Replacing the ternary operator with an if-else statement improves code readability and clarity, especially when the expressions are more complex. The change does not alter the logic of the assignment.
166-166: LGTM!Declaring the
EbpfHelperPrototypeobject as const ensures that it cannot be modified after initialization, improving code safety and expressing the intent that the object should remain constant throughout its lifetime.
193-193: LGTM!Declaring the
typesvariable as const ensures that it cannot be modified after initialization, improving code safety and expressing the intent that the variable should remain constant throughout its lifetime.
194-194: LGTM!Declaring the
cmp_opvariable as const ensures that it cannot be modified after initialization, improving code safety and expressing the intent that the variable should remain constant throughout its lifetime.Tools
cppcheck
[error] 194-194: Syntax Error
(internalAstError)
201-201: LGTM!Using
std::visitwith a lambda expression simplifies the printing logic for theAssertionConstraintobject, improving code readability and conciseness.
212-212: LGTM!Marking the
operator()function as const indicates that it does not modify the state of theInstructionPrinterVisitorobject, improving code clarity and expressing the intent that the function should not modify the object's state.src/asm_unmarshal.cpp (21)
13-13: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
24-24: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
35-40: LGTM!Marking the struct as
finaland adding theconstqualifier to the constructor parameters are good practices to enhance code safety and prevent unintended modifications.
43-45: LGTM!Marking the struct as
finalis a good practice to enhance code safety and prevent unintended inheritance.
47-47: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
58-58: LGTM!Adding the
constqualifier to the parameter is a good practice to prevent unintended modifications.
79-80: LGTM!Adding the
constqualifiers to the parameters is a good practice to prevent unintended modifications.
95-96: LGTM!Adding the
[[nodiscard]]attribute to thegetAluOpmethod is a good practice to ensure that the return value is not ignored, promoting better error handling.
277-278: LGTM!Adding the
[[nodiscard]]attribute to themakeMemOpmethod is a good practice to ensure that the return value is not ignored, promoting better error handling.
385-386: LGTM!Adding the
[[nodiscard]]attribute to themakeAluOpmethod is a good practice to ensure that the return value is not ignored, promoting better error handling.
418-420: LGTM!Adding the
[[nodiscard]]attribute to themakeLddwmethod and theconstqualifiers to the parameters is a good practice to ensure that the return value is not ignored and to prevent unintended modifications.
482-483: LGTM!Adding the
[[nodiscard]]attribute to themakeCallmethod is a good practice to ensure that the return value is not ignored, promoting better error handling.
551-552: LGTM!Making the
getJumpTargetmethodstaticand adding the[[nodiscard]]attribute is a good practice to indicate that the method does not depend on object state and to ensure that the return value is not ignored.
562-563: LGTM!Making the
makeCallLocalmethodstaticand adding the[[nodiscard]]attribute is a good practice to indicate that the method does not depend on object state and to ensure that the return value is not ignored.
573-574: LGTM!Making the
makeCallxmethodstaticand adding the[[nodiscard]]attribute is a good practice to indicate that the method does not depend on object state and to ensure that the return value is not ignored.
592-593: LGTM!Adding the
[[nodiscard]]attribute to themakeJmpmethod and theconstqualifier to thethispointer is a good practice to ensure that the return value is not ignored and to indicate that the method does not modify the object state.
701-703: LGTM!Adding the
[[nodiscard]]attribute to theunmarshalmethod and theconstqualifiers to the parameters is a good practice to ensure that the return value is not ignored and to prevent unintended modifications.
235-235: LGTM!Adding the
constqualifier to the parameter and marking the function asstaticare good practices to prevent unintended modifications and enhance encapsulation.
237-237: LGTM!Adding the
constqualifier to the parameter and marking the function asstaticare good practices to prevent unintended modifications and enhance encapsulation.
239-239: LGTM!Adding the
constqualifiers to the parameters and marking the function asstaticare good practices to prevent unintended modifications and enhance encapsulation.
220-221: LGTM!Adding the
constqualifiers to the parameters and marking the function asstaticare good practices to prevent unintended modifications and enhance encapsulation.
Signed-off-by: Elazar Gershuni <[email protected]> Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Signed-off-by: Elazar Gershuni <[email protected]> Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Signed-off-by: Elazar Gershuni <[email protected]>
Signed-off-by: Elazar Gershuni <[email protected]>
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This PR serves as a demonsration, and is unlikely to be merged, since it's far too large and not really automatable.
Summary by CodeRabbit
New Features
std::vector<T>from various data sources, enhancing type safety and usability.Improvements
constreferences for parameters, enhancing performance and clarity.string_invariantstruct with default equality operator and updatedcontainsmethod for better performance.Refactor
z_numberclass tonumber_tfor consistency and clarity.