jack-pappas/ExtCore

ExtCore is a functional programming utility library for F\# that provides core data structures and utilities. It implements high-performance collections such as IntMap, IntSet, and HashMap, alongside an LRU cache and command-line argument parsing. The system is designed for cross-platform compatibility, supporting multiple .NET Standard and .NET Core versions, and includes comprehensive unit tests and performance benchmarks to ensure correctness and efficiency.

An .editorconfig file has been added to the repository to enforce consistent code formatting rules, specifically setting 4-space indentation for F\# source files (.fs, .fsi, .fsl, .fsy) and globally enabling trailing whitespace trimming and final newlines.

(repo-wide) · high confidence

Introduced a new ExtCore.Args module for parsing command-line arguments, including an ArgInfo type and ArgParser class that support various argument types (string, int, float, unit, set/clear flags) and display usage text. Additionally, added a new ExtCore.Caching module containing an LruCache implementation with full functionality, including creation, retrieval, and equality comparison, along with corresponding unit tests.

ExtCore · high confidence

The project now includes NuGet configuration files (NuGet.Config and NuGet.targets) that enable automatic package restoration before building. This ensures that all required packages are downloaded and restored automatically during the build process, eliminating the need for manual package restoration steps.

.nuget · high confidence

Added benchmarks for IntMap and IntSet performance; Expanded unit test coverage for ExtCore collections and caching modules.

A new file, packages/repositories.config, was added to configure the local package repository path for the ExtCore.Tests project. This change affects how the build system locates and resolves NuGet packages for the test project.

packages · high confidence

The ExtCore library and its test/benchmark projects have been converted to the modern SDK-style .fsproj format. ExtCore now targets netstandard1.6, netstandard2.0, and net45, while the test project targets netcoreapp1.1, netcoreapp2.0, and net45. This enables building for multiple .NET platforms and using the SDK's built-in test runner and package management.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• CAI 49 → 46 (-2.8)
• Rubric changed (rubric-2026.08.19 → rubric-2026.09.15) — scores are not directly comparable.

• Code Health 73 → 70 (-2.5)
• Architecture 100 → 100 (+0.0)
• Maturity 18 → 26 (+7.4)
• Readiness 67 → 67 (+0.0)
• Security 100 → 55 (-45.0)

• Dependency hygiene not measured — no packages were read
• Duplicated block (10 lines × 2) (ExtCore/Collections.HashSet.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.LongMap.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.LongMap.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.ResizeArray.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.Vector.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Maybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderMaybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderMaybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderMaybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderMaybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderMaybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderState.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.State.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.State.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.State.fs)
• Duplicated block (10 lines × 4) (ExtCore/ControlCollections.ReaderProtectedState.fs)
• …and 196 more

• Documentation: no installation or build instructions (README.rst)
• Documentation: no usage examples (README.rst)
• Duplicated block (10 lines × 2) (ExtCore/Collections.Array.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.IntMap.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.IntMap.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.IntMap.fs)
• Duplicated block (10 lines × 2) (ExtCore/Collections.ResizeArray.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Choice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Choice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Choice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Choice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Maybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.Maybe.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ProtectedState.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 2) (ExtCore/ControlCollections.ReaderChoice.fs)
• Duplicated block (10 lines × 3) (ExtCore/Collections.Array.fs)
• Duplicated block (10 lines × 3) (ExtCore/ControlCollections.ReaderState.fs)
• …and 232 more

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

jack-pappas/ExtCore was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.