feat: add prophet-wasmstan component and JS package stubs
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Actionable comments posted: 42
🧹 Outside diff range and nitpick comments (39)
components/.gitignore (1)
1-1: LGTM. Consider documenting the purpose of the /tools directory.The addition of "/tools" to the .gitignore file is appropriate for excluding build tools, scripts, or other development utilities that don't need to be version controlled.
For better maintainability, consider adding a brief comment in the .gitignore file or in the project's documentation explaining what kind of content is expected in the /tools directory and why it's being ignored.
components/js/prophet-wasmstan/.gitignore (1)
1-6: LGTM! Consider a minor improvement for consistency.The .gitignore file contents are appropriate for a JavaScript/TypeScript project using WebAssembly. It correctly ignores build artifacts, generated files, and dependencies.
For consistency, consider adding a trailing newline at the end of the file. This is a common convention and can prevent issues with some tools. You can do this by adding an empty line at the end of the file.
/node_modules prophet-wasmstan.*.wasm prophet-wasmstan.d.ts prophet-wasmstan.js bsull-augurs-prophet-wasmstan-*.tgz +components/cpp/prophet-wasmstan/shim/tbb/partitioner.h (4)
1-2: Consider modifying the include guard macro name.The include guards are correctly implemented, but the macro name
__TBB_partitioner_Huses double underscores at the beginning, which are reserved for compiler and standard library implementations. To avoid potential conflicts, consider changing it to a name without leading double underscores, such asTBB_PARTITIONER_H.-#ifndef __TBB_partitioner_H -#define __TBB_partitioner_H +#ifndef TBB_PARTITIONER_H +#define TBB_PARTITIONER_H // ... (rest of the file) -#endif +#endif // TBB_PARTITIONER_HAlso applies to: 15-15
4-4: Approve namespace usage and suggest adding documentation.The use of the
tbbnamespace is good practice to avoid naming conflicts. However, it would be beneficial to add a brief comment explaining the purpose of this namespace and its relation to the Threading Building Blocks library.Consider adding a comment above the namespace declaration:
// Namespace for Threading Building Blocks (TBB) related classes namespace tbb { // ... (existing code) }Also applies to: 13-13
8-11: Approve class structure and suggest adding documentation.The
simple_partitionerclass structure is correct, with a public default constructor. However, the purpose and usage of this class are not immediately clear from its implementation.Consider adding documentation to explain the purpose and usage of this class:
/** * @brief A simple partitioner for task or data division in parallel processing. * * This class provides a basic partitioning strategy. The empty constructor * suggests that no special initialization is needed for this partitioner. */ class simple_partitioner { public: simple_partitioner() {} // Default constructor };Also, if there are plans to add more functionality to this class in the future, consider adding a TODO comment to indicate future work.
1-15: Clarify the overall purpose and implementation of this file.This file introduces basic structures that appear to be related to the Threading Building Blocks (TBB) library. The minimal implementation suggests that it might be serving as a shim or placeholder for more complex functionality.
To improve the file:
- Add a file-level comment explaining its purpose, especially in relation to the Prophet WASM component mentioned in the PR description.
- Clarify how this implementation relates to or differs from the original TBB library.
- If this is a simplified version for WASM compatibility, explain the rationale behind the simplifications.
Consider adding a comment at the top of the file:
/** * @file partitioner.h * @brief Simplified TBB-like partitioner implementations for WASM compatibility * * This file provides minimal implementations of TBB-like partitioning classes * to support the Prophet WASM component. These are simplified versions * designed to work in a WebAssembly environment where the full TBB library * may not be available or suitable. */Additionally, if there are plans to expand this implementation in the future, consider adding TODO comments or creating GitHub issues to track future enhancements.
components/cpp/prophet-wasmstan/shim/tbb/task_scheduler_observer.h (2)
1-2: Consider modifying the include guard macro name.The current include guard macro name
__TBB_task_scheduler_observer_Huses double underscores, which are reserved for compiler and standard library implementations. To avoid potential naming conflicts, consider changing it to a name without double underscores.Suggested change:
-#ifndef __TBB_task_scheduler_observer_H -#define __TBB_task_scheduler_observer_H +#ifndef TBB_TASK_SCHEDULER_OBSERVER_H +#define TBB_TASK_SCHEDULER_OBSERVER_H // ... (rest of the file) -#endif +#endif // TBB_TASK_SCHEDULER_OBSERVER_HAlso applies to: 13-13
4-4: Namespace declaration looks good. Consider adding a comment to the closing brace.The
tbbnamespace is correctly declared. To improve readability, especially in larger files, consider adding a comment to the closing brace of the namespace.Suggested change:
namespace tbb { // ... (content of the namespace) -} +} // namespace tbbAlso applies to: 11-11
components/cpp/prophet-wasmstan/shim/tbb/task_arena.h (2)
1-2: Consider revising the include guard macro name.The include guards are correctly implemented, which is good practice to prevent multiple inclusions. However, the macro name
__TBB_task_arena_Huses a double underscore prefix, which is reserved for the compiler and standard library implementation. To avoid potential conflicts, consider changing the macro name to something likeTBB_TASK_ARENA_H.Here's a suggested change:
-#ifndef __TBB_task_arena_H -#define __TBB_task_arena_H +#ifndef TBB_TASK_ARENA_H +#define TBB_TASK_ARENA_H // ... (rest of the file) -#endif +#endif // TBB_TASK_ARENA_HThis change also adds a comment to the closing
#endiffor improved readability.Also applies to: 15-15
1-15: Consider adding file-level documentation.The overall structure of this header file is good, with proper include guards and clear namespace usage. However, to improve maintainability and clarity, consider adding file-level documentation. This could include:
- A brief description of the file's purpose
- Any dependencies or related files
- How this shim relates to the actual TBB implementation
- Any limitations or differences from the full TBB functionality
For example, you could add something like this at the beginning of the file:
/** * @file task_arena.h * @brief Shim implementation of TBB's task_arena functionality * * This file provides a simplified version of TBB's task_arena interface. * It is intended for use in environments where the full TBB implementation * is not available or not necessary. Note that the functions provided here * may not offer the same guarantees as the full TBB implementation. * * @note This is a partial implementation and may not provide full TBB functionality. */This documentation would help other developers understand the file's role in the project and any potential limitations they should be aware of.
components/cpp/prophet-wasmstan/shim/stan/math/prim/fun/fma.hpp (1)
1-2: Header guards are correctly implemented.The header guards effectively prevent multiple inclusions of this file. The macro name follows a consistent naming convention, which is good for maintainability.
Consider updating the macro name to
STAN_MATH_PRIM_FUN_FMA_HPPto align perfectly with the directory structure (prim/funinstead ofPRIM_SCAL_FUN).Also applies to: 13-13
components/cpp/prophet-wasmstan/shim/tbb/task_scheduler_init.h (1)
1-2: Modify include guard macro name to avoid reserved identifiers.The current include guard macro name
__TBB_task_scheduler_init_Huses a double underscore prefix, which is reserved for the compiler and standard library implementation. To ensure portability and avoid potential conflicts, consider changing the macro name to remove the leading underscores.Here's a suggested modification:
-#ifndef __TBB_task_scheduler_init_H -#define __TBB_task_scheduler_init_H +#ifndef TBB_TASK_SCHEDULER_INIT_H +#define TBB_TASK_SCHEDULER_INIT_H // ... (rest of the file) -#endif +#endif // TBB_TASK_SCHEDULER_INIT_HAlso applies to: 17-17
components/cpp/prophet-wasmstan/shim/tbb/parallel_for.h (1)
7-16: Clarify the purpose of this implementation and consider namespace implications.The use of the
tbbnamespace suggests this is related to Intel's Threading Building Blocks, but the implementation doesn't use any TBB functionality. This could lead to confusion or conflicts if the actual TBB library is used elsewhere in the project.Suggestions:
- Add comments explaining the purpose of this implementation (e.g., if it's a temporary shim or for testing).
- Consider using a different namespace (e.g.,
tbb_shim) to avoid potential conflicts.- If this is indeed meant to replace TBB functionality, document why a custom implementation is used instead of the standard TBB library.
Here's a suggested improvement to add clarifying comments:
namespace tbb { + +// Note: This is a simplified, non-parallel implementation of tbb::parallel_for. +// It's intended for [explain purpose here, e.g., "testing", "environments where TBB is unavailable", etc.] +// TODO: Replace with actual TBB implementation or implement parallelism. template<typename RangeType, typename Body> void parallel_for(const blocked_range<RangeType>& range, const Body& body, const simple_partitioner& partitioner) {components/cpp/prophet-wasmstan/shim/tbb/parallel_reduce.h (3)
1-5: LGTM! Consider adding include guards for C++.The header guards are correctly implemented. However, for better compatibility with C++ compilers, consider using
#pragma oncein addition to the traditional include guards.You could add the following line at the beginning of the file:
#pragma onceAlso applies to: 21-21
6-19: Clarify the relationship with the TBB library.The use of the
tbbnamespace suggests this is related to the Threading Building Blocks (TBB) library. However, the implementations are simplified or placeholder versions. To avoid confusion:
- Add a comment explaining that this is a custom implementation or shim of TBB functions.
- Consider using a different namespace (e.g.,
tbb_shim) to clearly differentiate from the actual TBB library.Example comment to add at the top of the file:
// This file provides simplified implementations of TBB functions for use in WebAssembly environments. // These are not full TBB implementations and may lack parallel execution capabilities.
1-21: Improve documentation to clarify the purpose and limitations of this implementation.This file provides simplified versions of TBB parallel reduction functions, likely as a compatibility layer or placeholder for a WebAssembly environment. To improve clarity and prevent misuse:
- Add comprehensive documentation explaining:
- The purpose of this implementation
- Its limitations (e.g., lack of actual parallelism)
- The intended use case (e.g., WebAssembly compatibility)
- Consider adding
TODOcomments for future improvements or parallel implementations.- If applicable, link to related documentation or issues discussing the rationale behind this implementation.
Example documentation to add at the top of the file:
/** * @file parallel_reduce.h * @brief Simplified TBB-like parallel reduction functions for WebAssembly environments. * * This file provides implementations of TBB-style parallel reduction functions * that are compatible with WebAssembly environments. These implementations * are currently sequential and do not provide actual parallelism. * * @note These functions are not full TBB implementations and are intended * for use in environments where the full TBB library is not available. * * TODO: Investigate possibilities for actual parallel execution in WebAssembly. * * @see [Link to relevant documentation or discussion] */components/cpp/prophet-wasmstan/shim/cpp/exceptions.cpp (2)
6-10: Consider enhancing error message and noting memory allocation.The implementation correctly prevents silent failures, but consider the following improvements:
- Enhance the error message to include more context, such as the size requested.
- Add a comment noting that no actual memory allocation occurs in this stub.
Here's a suggested implementation:
extern "C" { void *__cxa_allocate_exception(size_t size) { std::cerr << "Exception allocation attempted (size: " << size << " bytes)" << std::endl; // Note: No actual memory allocation occurs in this stub implementation abort(); }
12-17: LGTM with a minor suggestion regarding the macro usage.The implementation of
__cxa_throwis correct and provides useful information in the error message. However, consider the following minor improvement:Replace the non-standard macro
_LIBCXXABI_DTOR_FUNCwith a more portable typedef:typedef void (*destructor_type)(void *); void __cxa_throw(void *thrown_exception, std::type_info *tinfo, destructor_type destructor) { std::cerr << "Exception thrown: " << tinfo->name() << std::endl; abort(); }This change improves portability and readability of the code.
components/cpp/prophet-wasmstan/shim/tbb/blocked_range.h (2)
9-10: Consider addressing the unusedgrainsizeparameter.The constructor includes a
grainsizeparameter that is currently unused. This might indicate incomplete implementation or plans for future extensibility. Consider one of the following options:
- If
grainsizeis intended for future use, add a TODO comment explaining its purpose.- If it's not needed, remove the parameter to avoid confusion.
- If it should be used, implement the logic for it.
Here's a possible improvement if option 1 is chosen:
- blocked_range(Value begin, Value end, std::size_t grainsize) - : begin_(begin), end_(end) {} + blocked_range(Value begin, Value end, std::size_t grainsize) + : begin_(begin), end_(end) { + // TODO: Implement grainsize logic for parallel processing optimization + }
1-22: Overall, good implementation of ablocked_rangeclass template.This file implements a basic
blocked_rangeclass template, which appears to be part of a Threading Building Blocks (TBB) shim. The implementation is generally well-structured and follows good C++ practices. Here's a summary of the key points:
- Proper use of header guards and namespace.
- Well-designed class template allowing for flexible value types.
- Basic range operations are implemented as const member functions.
- Good encapsulation with private members for internal state.
The main areas for potential improvement are:
- Clarifying the purpose of the unused
grainsizeparameter in the constructor.- Making the
empty()function more generic to support a wider range ofValuetypes.Consider addressing these points to enhance the robustness and clarity of the implementation.
As this seems to be part of a TBB shim, ensure that this implementation aligns with the expected behavior of the original TBB
blocked_rangeclass. If there are any intentional deviations, it would be helpful to document them in comments or in the associated README file..github/workflows/wasmstan.yml (4)
12-15: Consider improving job name and runner specification.While the current setup works, consider the following improvements:
- The job name "build" is generic. A more descriptive name like "build-and-test-wasmstan" would better reflect the job's purpose.
- Using
ubuntu-latestis good for staying up-to-date, but consider specifying a version (e.g.,ubuntu-22.04) for better reproducibility.Here's a suggested improvement:
jobs: build-and-test-wasmstan: runs-on: ubuntu-22.04
18-24: LGTM: Comprehensive setup for Rust and WebAssembly development.The setup steps are well-defined and include all necessary components:
- Latest checkout action is used.
- Rust toolchain is set up with appropriate WebAssembly targets.
- Additional tools (cargo-binstall, just, wasmtime) are installed.
One suggestion for improvement:
Consider pinning the versions of the installed tools for better reproducibility. You can modify the installation step like this:
- uses: taiki-e/install-action@v2 with: tool: cargo-binstall@0.20.1,just@1.13.0,wasmtime@8.0.1Replace the versions with the ones you're currently using or the latest stable versions.
25-29: LGTM: Build and test steps are present, but could be enhanced.The workflow includes necessary steps for installing dependencies, setting up Node.js, and running tests. The use of custom commands (likely from a Justfile) is good for maintainability.
Suggestions for improvement:
- Consider adding a caching step for Rust dependencies to speed up the workflow. You can use the
actions/cache@v3action for this.- It might be beneficial to split the test step into separate steps for building and testing, to provide clearer feedback in case of failures.
- Consider adding a step to upload build artifacts or test results.
Here's an example of how you could implement these suggestions:
- uses: actions/cache@v3 with: path: | ~/.cargo/registry ~/.cargo/git target key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }} - name: Build run: just components/build - name: Test run: just components/test - uses: actions/upload-artifact@v3 with: name: dist path: path/to/build/outputReplace
path/to/build/outputwith the actual path where your build artifacts are located.
1-29: Overall, the workflow is well-structured but could benefit from some enhancements and documentation.The
prophet-wasmstan.ymlworkflow provides a solid foundation for building and testing the WebAssembly component. It covers essential steps including environment setup, dependency installation, and testing.Suggestions for overall improvement:
- Consider adding comments in the workflow file to explain the purpose of each step, especially for custom commands.
- It would be beneficial to document the custom
justcommands used in this workflow (e.g.,components/install-deps,components/test) in the project's README or a separate CONTRIBUTING.md file. This will help other contributors understand and potentially modify the CI process.- Think about adding a linting step (e.g.,
cargo clippy) to ensure code quality.- Consider implementing a strategy for versioning and releasing the WebAssembly component, perhaps using GitHub releases.
These enhancements will improve the maintainability, reproducibility, and overall robustness of your CI/CD pipeline.
components/js/prophet-wasmstan/package.json (3)
15-23: Consider being more specific with file inclusions.While the current file inclusions cover all necessary files, using wildcards might include unnecessary files in the package. Consider being more specific with file names to ensure only required files are included.
For example, you could replace:
"interfaces/*", "prophet-wasmstan.core*.wasm",with more specific file names if possible. This helps keep the package size minimal and avoids including unintended files.
30-35: Ensure package-lock.json is committed.The dependencies look appropriate. Remember to commit the
package-lock.jsonfile to ensure consistent installations across different environments.The
package-lock.jsonfile locks the versions of all dependencies and their sub-dependencies, which is crucial for reproducible builds.
36-39: Consider adding more npm scripts if needed.The current scripts cover testing scenarios, which is good. Depending on your development and deployment workflow, you might want to consider adding more npm scripts. For example:
- A
buildscript if there's any compilation or bundling step.- A
lintscript if you're using a linter.- A
prepublishOnlyscript to ensure all necessary steps are run before publishing.These additional scripts can help standardize and automate your development processes.
components/js/prophet-wasmstan/README.md (2)
1-3: Consider expanding the description for better context.The title and brief description provide a good starting point. However, consider expanding the description to include:
- A brief explanation of what Prophet is and its primary use case.
- The purpose of compiling it to WebAssembly.
- The benefits of using this WASM-compiled version with the @bsull/augurs library.
This additional information would help users quickly understand the purpose and benefits of this package.
1-28: Consider adding additional sections to enhance the README.The README provides a good starting point, but consider adding the following sections to make it more comprehensive:
- Installation: Provide instructions on how to install the package, including any prerequisites.
- API Reference: Brief overview of the main classes and methods, or a link to detailed API documentation.
- Contributing: Guidelines for developers who want to contribute to the project.
- License: Information about the software license.
These additions would make the README more informative and user-friendly, following best practices for open-source project documentation.
components/cpp/prophet-wasmstan/README.md (2)
12-12: Consider adding a comma for improved readabilityTo enhance readability, consider adding a comma after "To build the component" at the beginning of the sentence.
Here's the suggested change:
-To build the component you'll need to have several tools from the +To build the component, you'll need to have several tools from the🧰 Tools
🪛 LanguageTool
[typographical] ~12-~12: It seems that a comma is missing.
Context: ...WASM module. ## Building To build the component you'll need to have several tools from ...(IN_ORDER_TO_VB_COMMA)
41-49: LGTM: Clear instructions for JavaScript bindingsThe instructions for generating JavaScript bindings are clear and concise. The use of the
just transpilecommand simplifies the process for users.Consider adding a brief explanation of why a user might need these JavaScript bindings and how they relate to the overall usage of the component. This additional context could help users better understand the purpose and importance of this step.
components/cpp/prophet-wasmstan/structured_writer.cpp (1)
27-31: Mark getter methods asconstto ensure object immutability.The getter methods
get_names(),get_values(), andget_comment()should be marked asconstto indicate that they do not modify the state of the object and to allow them to be called on constant instances ofStructuredWriter.Apply this diff to mark the methods as
const:- std::vector<std::string> get_names() { return names; } - std::vector<std::vector<double>> get_values() { return values; } - std::string get_comment() { return comment.str(); } + std::vector<std::string> get_names() const { return names; } + std::vector<std::vector<double>> get_values() const { return values; } + std::string get_comment() const { return comment.str(); }components/cpp/prophet-wasmstan/model/model.stan (1)
131-132: Consider usinglaplaceinstead ofdouble_exponentialfor clarityWhile
double_exponentialandlaplaceare equivalent in Stan, usinglaplacemay improve code readability and align with contemporary statistical terminology.Apply this diff to update the prior:
-delta ~ double_exponential(0, tau); +delta ~ laplace(0, tau);Ensure this change is compatible with your Stan version to prevent any compatibility issues.
components/cpp/prophet-wasmstan/wit/prophet-wasmstan.wit (1)
25-29: Remove Redundant Comments for Enum VariantsThe comments indicating the numerical values of the enum variants (e.g.,
// 0) are unnecessary, as the enum variants are self-explanatory.Apply this diff to remove the redundant comments:
25 /// Linear trend (default). -25 linear, // 0 +25 linear, 27 /// Logistic trend. -27 logistic, // 1 +27 logistic, 29 /// Flat trend. -29 flat, // 2 +29 flat,components/cpp/prophet-wasmstan/prophet_wasmstan.h (3)
13-13: Add space between asterisk and pointer name for clarityIn the declaration
uint8_t*ptr;, there is no space between the asterisk and the pointer name. For better readability, it's recommended to add a space between the asterisk and the pointer name, likeuint8_t *ptr;.Apply this diff to improve readability:
- uint8_t*ptr; + uint8_t *ptr;
41-44: Remove redundant comments in trend indicator definitionsThe comments
// 0and// 1after the trend indicator definitions are redundant and may cause confusion. Since the macros already define the numerical values, these comments can be removed.Apply this diff to clean up the comments:
// Linear trend (default). #define AUGURS_PROPHET_WASMSTAN_TYPES_TREND_INDICATOR_LINEAR 0 -// 0 // Logistic trend. #define AUGURS_PROPHET_WASMSTAN_TYPES_TREND_INDICATOR_LOGISTIC 1 -// 1 // Flat trend.
66-67: Clarify comments about WIT identifier namingThe comments mention that "WIT identifiers must be lower kebab-case," but in C code, identifiers cannot contain hyphens. Since the C code uses
snake_casefor identifiers, consider updating the comments to reflect this and avoid confusion.Apply this diff to update the comments:
-// but WIT identifiers must be lower kebab-case. +// Note: Original WIT identifiers are converted to snake_case in C.Also applies to: 75-76, 79-81, 83-84
components/cpp/prophet-wasmstan/prophet_wasmstan.cpp (1)
1-1: Note on modifying auto-generated codeThis file is auto-generated by
wit-bindgen0.34.0 and includes a noticeDO NOT EDIT!. Manual changes to this file may be overwritten when the code is regenerated. If modifications are necessary, consider updating the sourcewitdefinitions or the code generation configurations instead.components/cpp/prophet-wasmstan/model/model.hpp (1)
1206-1210: Avoid potential integer overflow withstd::to_stringin parameter names.When generating parameter names with
std::to_string(sym1__), there is a potential for integer overflow ifsym1__is very large.Consider using
std::size_tfor loop indices and ensure that the indices do not exceed the limits ofint.- for (int sym1__ = 1; sym1__ <= S; ++sym1__) { + for (std::size_t sym1__ = 1; sym1__ <= static_cast<std::size_t>(S); ++sym1__) {
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⛔ Files ignored due to path filters (1)
components/js/prophet-wasmstan/package-lock.jsonis excluded by!**/package-lock.json
📒 Files selected for processing (26)
- .github/workflows/wasmstan.yml (1 hunks)
- .gitmodules (1 hunks)
- components/.gitignore (1 hunks)
- components/cpp/prophet-wasmstan/.gitignore (1 hunks)
- components/cpp/prophet-wasmstan/README.md (1 hunks)
- components/cpp/prophet-wasmstan/model/model.hpp (1 hunks)
- components/cpp/prophet-wasmstan/model/model.stan (1 hunks)
- components/cpp/prophet-wasmstan/optimizer.cpp (1 hunks)
- components/cpp/prophet-wasmstan/prophet_wasmstan.cpp (1 hunks)
- components/cpp/prophet-wasmstan/prophet_wasmstan.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/cpp/exceptions.cpp (1 hunks)
- components/cpp/prophet-wasmstan/shim/stan/math/prim/fun/fma.hpp (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/blocked_range.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/parallel_for.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/parallel_reduce.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/partitioner.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/task_arena.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/task_scheduler_init.h (1 hunks)
- components/cpp/prophet-wasmstan/shim/tbb/task_scheduler_observer.h (1 hunks)
- components/cpp/prophet-wasmstan/stan (1 hunks)
- components/cpp/prophet-wasmstan/structured_writer.cpp (1 hunks)
- components/cpp/prophet-wasmstan/wit/prophet-wasmstan.wit (1 hunks)
- components/js/prophet-wasmstan/.gitignore (1 hunks)
- components/js/prophet-wasmstan/README.md (1 hunks)
- components/js/prophet-wasmstan/package.json (1 hunks)
- components/justfile (1 hunks)
🧰 Additional context used
🪛 LanguageTool
components/cpp/prophet-wasmstan/README.md
[typographical] ~12-~12: It seems that a comma is missing.
Context: ...WASM module. ## Building To build the component you'll need to have several tools from ...(IN_ORDER_TO_VB_COMMA)
🔇 Additional comments (34)
components/cpp/prophet-wasmstan/stan (1)
1-1: Acknowledge the addition of Stan submoduleThe Stan library has been added as a Git submodule, pointing to a specific commit (16f723b895d79b40ebfef9b20a56df951664ac6f). This aligns with the PR objective of interfacing with the Prophet Stan model's
optimizefunctionality.To ensure the correct version of Stan is being used and is compatible with the project, please run the following verification script:
This script will help verify the Stan submodule status, show the commit message for the specific Stan version being used, and check for any Stan-related configuration files in the project.
✅ Verification successful
Further Verification Required for Stan Configuration Files
The initial verification confirmed the Stan submodule is correctly set to commit
16f723b895d79b40ebfef9b20a56df951664ac6f. However, no Stan-related configuration files were found inlib/stan. To ensure all Stan configurations are correctly integrated, please run the following script:This script searches for Stan-related files with common extensions (
cpp,h,hpp,json,yaml) throughout the repository to identify any existing Stan configurations or related files.
Stan submodule integration verified
The Stan submodule is correctly added, pointing to commit
16f723b895d79b40ebfef9b20a56df951664ac6f. Stan-related files are present in thecomponents/cpp/prophet-wasmstan/directory, ensuring proper integration with the Prophet Stan model'soptimizefunctionality.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify Stan submodule version and compatibility # Test: Check Stan submodule status echo "Stan submodule status:" git submodule status components/cpp/prophet-wasmstan/stan # Test: Fetch Stan version information echo "Stan version information:" cd components/cpp/prophet-wasmstan/stan git show -s --format=%B # Test: Check for any Stan-related configuration or build files echo "Stan-related configuration files:" fd -t f stan lib/stanLength of output: 538
Script:
# #!/bin/bash # Description: Search for Stan-related files across the repository echo "Searching for Stan-related files in the repository:" fd -i -e cpp -e h -ehpp -ejson -eyaml | grep -i stanLength of output: 1097
components/cpp/prophet-wasmstan/.gitignore (1)
1-3: LGTM! Appropriate .gitignore patterns for WASM build artifacts.The added .gitignore patterns are well-structured and serve the following purposes:
*-core.wasm: Ignores WebAssembly core module files.*-component.wasm: Ignores WebAssembly component files.*_component_type.o: Ignores object files related to component types.These patterns effectively prevent build artifacts and generated files from being tracked in version control, which is a good practice. This aligns well with the PR objective of introducing a WebAssembly component for the Prophet Stan model.
.gitmodules (1)
1-3: LGTM! Submodule addition looks good.The addition of the Stan submodule aligns well with the PR objectives of implementing Prophet model functionality. This approach allows for proper version control of the external dependency.
To ensure the correct setup and version of Stan, please run the following verification script:
Make sure to review the output to confirm that the Stan version is appropriate for your needs and that any necessary build steps are accounted for in your project's setup.
components/cpp/prophet-wasmstan/shim/tbb/partitioner.h (1)
6-6: Clarify the purpose of thesplitclass.The
splitclass is currently empty. While empty classes can serve specific purposes in C++, such as acting as tags or for template specialization, it's not clear from the current implementation what role this class is intended to play.Could you provide more information about the intended use of the
splitclass? If it's meant to be a placeholder for future implementation, consider adding a TODO comment explaining its purpose.components/cpp/prophet-wasmstan/shim/tbb/task_scheduler_observer.h (1)
6-9: Class definition looks good. Please provide more context on its intended use.The
task_scheduler_observerclass is correctly defined with a single public methodobserve. However, the purpose and usage of this class are not immediately clear from the implementation.Could you provide more information on:
- The intended use of this class in the context of the WebAssembly and Stan model optimization mentioned in the PR objectives?
- Whether this is a stub implementation that will be expanded later?
- If this is meant to be used as-is or inherited from?
This information will help ensure that the implementation aligns with its intended purpose and fits well within the overall architecture.
To verify if this class is used or inherited from elsewhere in the project, you can run the following script:
components/cpp/prophet-wasmstan/shim/tbb/task_arena.h (2)
4-5: Namespace structure looks good.The use of nested namespaces (
tbb::this_task_arena) is a good practice. It helps organize the code and prevents name collisions, especially when dealing with library components like TBB (Threading Building Blocks).Also applies to: 12-13
7-10: Clarify the purpose of theisolatefunction.The
isolatefunction appears to be a simplified version or a shim for TBB'sthis_task_arena::isolatefunction. In its current form, it doesn't provide actual isolation, as it simply calls and returns the result of the passed function.While this might be intentional for a shim implementation, it's important to ensure that this behavior aligns with the expected functionality in the context of your project. If actual isolation is required, you might need to implement the necessary logic or link to the actual TBB implementation.
Could you clarify the intended purpose of this function? Is it meant to be a placeholder, or should it provide actual isolation functionality?
Additionally, consider adding a brief comment explaining the function's purpose and any limitations of this implementation. For example:
// Shim for TBB's this_task_arena::isolate // Note: This implementation doesn't provide actual isolation template<typename F> auto isolate(const F& f) { return f(); }This would help other developers understand the function's role and any potential differences from the full TBB implementation.
components/cpp/prophet-wasmstan/shim/stan/math/prim/fun/fma.hpp (2)
4-5: Namespace structure is well-organized.The use of nested namespaces (
stan::math) is a good practice. It helps in organizing the codebase and preventing name conflicts.Also applies to: 11-12
7-9: 🛠️ Refactor suggestionConsider additional optimizations and ensure C++11 compliance.
To further improve the
fmafunction:
- Add the
constexprspecifier to allow compile-time evaluation when possible.- Ensure the project is using C++11 or later to support
constexprandstd::fma.Here's an optimized version of the function:
constexpr inline double fma(double x, double y, double z) { return std::fma(x, y, z); }To ensure C++11 compliance, please run the following command in your build environment:
If this command succeeds without errors, it confirms C++11 compatibility.
components/cpp/prophet-wasmstan/shim/tbb/task_scheduler_init.h (3)
6-8: LGTM: Namespace and type alias look good.The use of the
tbbnamespace and the type aliasstack_size_typeforsize_tare good practices. The namespace helps avoid naming conflicts, and the type alias can provide consistency and clarity in the codebase.
10-13: Clarify the purpose oftask_scheduler_initclass and add documentation.The
task_scheduler_initclass is currently implemented as a stub with an empty constructor that takes two unusedsize_tparameters. To improve code clarity and maintainability:
- Add documentation explaining the purpose of this class and how it relates to the Prophet WASM implementation.
- Clarify the intended use of the constructor parameters.
- Consider adding a comment explaining why the constructor is empty if this is intentional.
Example:
namespace tbb { /** * @brief Stub implementation of task_scheduler_init for Prophet WASM. * * This class provides a shim for the TBB task_scheduler_init functionality * in the WebAssembly environment. It currently does not perform any initialization. */ class task_scheduler_init { public: /** * @brief Constructor for task_scheduler_init. * @param max_threads Maximum number of threads to use (currently unused). * @param stack_size Stack size for worker threads (currently unused). */ task_scheduler_init(size_t max_threads, size_t stack_size) { // No-op constructor for WASM implementation } }; }To better understand the context and usage of this class, you can run the following script:
#!/bin/bash # Description: Check for usage of task_scheduler_init in the codebase # Test: Search for task_scheduler_init usage rg --type cpp "task_scheduler_init" components/cpp/prophet-wasmstan # This will help verify if and how the class is being used in the project
4-4: Verify the necessity of includingtask_scheduler_observer.h.The file includes
<tbb/task_scheduler_observer.h>, but it doesn't appear to use any functionality from this header in the current implementation. Consider removing this include if it's not necessary, to reduce compilation time and potential dependencies.To verify the usage of
task_scheduler_observer.h, you can run the following script:✅ Verification successful
Please re-run the verification with the corrected search term to ensure accurate results.
Please verify if
task_scheduler_observeris instantiated or utilized in any source files.
The inclusion of
<tbb/task_scheduler_observer.h>is unnecessary and can be removed.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check for usage of task_scheduler_observer in the codebase # Test: Search for task_scheduler_observer usage rg --type cpp "task_scheduler_observer" components/cpp/prophet-wasmstan # If no results are found, the include statement may be unnecessaryLength of output: 541
Script:
#!/bin/bash # Description: Check for usage of task_scheduler_observer in the codebase # Test: Search for task_scheduler_observer usage rg --type cpp "task_scheduler_observer" components/cpp/prophet-wasmstan # If no results are found, the include statement may be unnecessaryLength of output: 488
Script:
#!/bin/bash # Description: Check for instantiations or usages of task_scheduler_observer in the codebase # Search for instantiations or method usages of task_scheduler_observer rg --type cpp "\btask_scheduler_observer\b" components/cpp/prophet-wasmstan -A2Length of output: 598
components/cpp/prophet-wasmstan/shim/tbb/parallel_for.h (1)
1-6: LGTM: File structure and includes are well-organized.The file structure follows good C++ practices:
- Proper use of header guards to prevent multiple inclusions.
- Appropriate includes for the functionality provided (
partitioner.handblocked_range.h).components/cpp/prophet-wasmstan/shim/cpp/exceptions.cpp (2)
1-5: LGTM: Clear explanation and appropriate includes.The file header provides a clear explanation of the purpose of these stub functions. The included headers are appropriate for the implemented functionality.
1-17: Overall assessment: Good implementation with room for minor improvements.The file successfully implements stub functions for exception handling in a WebAssembly context. The code is concise and serves its purpose well. Consider implementing the suggested improvements to enhance error reporting and code portability:
- Add more context to the error message in
__cxa_allocate_exception.- Replace the non-standard macro in
__cxa_throwwith a portable typedef.These changes will make the code more informative and easier to maintain across different environments.
components/cpp/prophet-wasmstan/shim/tbb/blocked_range.h (3)
1-4: LGTM: Proper use of header guards and namespace.The header guards and namespace usage are correctly implemented, following best practices for C++ header files.
6-7: LGTM: Well-designed class template.The
blocked_rangeclass template is well-defined, allowing for flexibility in the type of range values.
15-18: LGTM: Appropriate use of private members.The private members
begin_andend_are well-defined and follow a consistent naming convention. This encapsulation is a good practice in C++ class design..github/workflows/wasmstan.yml (2)
1-7: LGTM: Workflow name and trigger events are well-defined.The workflow name "prophet-wasmstan" is descriptive and matches the component. The trigger events (push and pull requests to the main branch) are appropriate for maintaining code quality in the main branch.
9-10: LGTM: Appropriate environment variable set for Cargo output.Setting
CARGO_TERM_COLORto "always" ensures colored output in CI logs, improving readability. This is a good practice for Rust projects.components/js/prophet-wasmstan/package.json (2)
10-14: LGTM: Repository and readme information.The repository information and readme file reference are correctly specified.
24-29: LGTM: Keywords are appropriate.The keywords are relevant and will aid in package discoverability.
components/js/prophet-wasmstan/README.md (1)
5-6: LGTM: Usage section header is clear and follows conventions.The usage section is clearly marked with the appropriate markdown header, making it easy for users to find.
components/cpp/prophet-wasmstan/README.md (3)
1-9: LGTM: Clear and informative introductionThe introduction provides a concise and clear overview of the
prophet-wasmstancomponent, effectively explaining its purpose and functionality. It successfully communicates the component's relationship to the Prophet model and Stan library.
10-30: LGTM: Clear building instructionsThe building section provides clear and concise instructions for setting up and building the component. The use of a
justfilesimplifies the process for users, making it easy to install dependencies and build the component.🧰 Tools
🪛 LanguageTool
[typographical] ~12-~12: It seems that a comma is missing.
Context: ...WASM module. ## Building To build the component you'll need to have several tools from ...(IN_ORDER_TO_VB_COMMA)
32-39: LGTM: Helpful usage instructionsThis section effectively guides users on how to use the component. The reference to the
prophet-wasmstan.witfile for interface definition and the link to the Component Model documentation provide valuable resources for users to get started with the component.components/cpp/prophet-wasmstan/structured_writer.cpp (1)
1-37: Code implementation is clear and follows best practices.The
StructuredWriterclass correctly implements thestan::callbacks::writerinterface, and the code is clean and readable. Good job!components/justfile (2)
53-53: Verify target architecture for WASI threadsThe compilation flag
-target wasm32-wasi-threadsat line 53 specifies the target architecture with threads support. Ensure that your environment and toolchain support WASI threads, as this feature may not be fully supported in all environments.
4-6:⚠️ Potential issueVerify the availability of WASI SDK version "24"
The variable
WASI_VERSIONis set to"24", but this version of the WASI SDK may not be available. Please verify that the version exists to prevent download failures. If version "24" is not available, updateWASI_VERSIONto match the correct version number.components/cpp/prophet-wasmstan/model/model.stan (1)
128-143: Verify the usage ofnormal_id_glmfunctionPlease verify that the arguments passed to
normal_id_glmalign with its expected signature. Incorrect usage might lead to unintended behavior or errors during model execution.Run the following script to confirm the correct usage of
normal_id_glm:Ensure the function is used consistently and the arguments match the required order:
y ~ normal_id_glm(X, alpha, beta, sigma).components/cpp/prophet-wasmstan/prophet_wasmstan.h (2)
220-221: Functionexports_augurs_prophet_wasmstan_optimizer_optimizeis correctly definedThe exported function
exports_augurs_prophet_wasmstan_optimizer_optimizeis properly declared with appropriate parameter types and follows the expected conventions for interoperability between C and WebAssembly components.
224-267: Helper functions for memory management are appropriately definedThe helper functions for freeing memory of various data structures are correctly implemented. They ensure proper deallocation of resources, which is crucial to prevent memory leaks.
components/cpp/prophet-wasmstan/model/model.hpp (2)
812-813: Check for possible exceptions inlinear_trendfunction call.When calling
linear_trend, ensure that all inputs are valid and that the function handles edge cases properly. For instance, ifdelta,t, ort_changehave mismatched dimensions, it may lead to runtime errors.Run the following script to verify the dimensions:
924-925: Check the standard deviations in the normal distributions are positive.In the
log_prob_implfunction, when evaluating the normal log probability density functions, ensure that the standard deviation parameters are strictly positive to prevent mathematical errors.Confirm that all standard deviation parameters (
sigma_obs, elements ofsigmas) are strictly positive.
components/cpp/prophet-wasmstan/shim/stan/math/prim/fun/fma.hpp
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This PR adds a WASM component which provides an interface to the Prophet Stan model's
optimizefunctionality for obtaining maximum likelihood estimates of parameters. It is designed for use with #125. It contains a newnpmpackage,@bsull/augurs-prophet-wasmstan, which will be published and should be added as a separate dependency for any users wishing to use the Prophet functionality from the JS library.Note: the reason it has been split into two packages is to avoid users who aren't using Prophet having to pay the (quite significant) cost of the Stan functionality in the WASM blob. Ideally we'd have a more lightweight optimizer but that'll have to come later.
Summary by CodeRabbit
New Features
README.mddocumentation for theprophet-wasmstancomponent, detailing installation and usage.model.stanfile.Bug Fixes
.gitignorefiles to prevent unnecessary files from being tracked.Documentation
prophet-wasmstancomponent.