CQCL/guppylang
Jan 2026 – Mar 2026
3 Months active
Languages Used
Python
Technical Skills
Pythoncompiler designdocumentationerror handlingstatic analysisunit testing
Robert Fisher
PROFILE
Robert Fisher
Worked on the CQCL/guppylang repository to deliver eight new features over three months, focusing on language reliability, safety, and developer productivity. Used Python and compiler design skills to implement compile-time array bounds and linearity checks, preventing out-of-bounds errors and ownership violations. Enhanced backend development by introducing in-place array element swapping and expanding boolean operator support. Improved error handling for compilation and runtime scenarios, including better support for numpy integer types. Expanded and standardized documentation for core modules, supporting onboarding and maintainability. Also developed a system for nested modifier composition, enabling more expressive language features while preserving correctness and unitary constraints.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
8Total
Bugs
0
Commits
8
Features
8
Lines of code
1,563
Activity Months3
Your Network
16 peopleWork History
March 2026
1 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for CQCL/guppylang: Focused on enhancing the modifier system to enable more expressive and safe modifier composition, delivering a concrete feature and addressing an edge-case bug that could undermine modifier state. The work contributed to more robust language tooling and lays groundwork for future enhancements.
1 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for CQCL/guppylang: Focused on enhancing the modifier system to enable more expressive and safe modifier composition, delivering a concrete feature and addressing an edge-case bug that could undermine modifier state. The work contributed to more robust language tooling and lays groundwork for future enhancements.
March 2026
February 2026
5 Commits • 5 Features
Feb 1, 2026February 2026 monthly summary for CQCL/guppylang: Focused on reliability, safety, and language capability improvements. Delivered five core features and fixes: improved error reporting for Guppy compilation/runtime errors (with explicit handling for numpy integer types in comptime), WASM path resolution enhancements with caller-directory based resolution and tests, an in-place array element swap function with performance gains, compile-time linearity checks for array indexing with literal indices to prevent ownership violations, and expanded boolean capabilities by adding __rxor__, __rand__, and __ror__. Also fixed a misleading error message when loading a list of numpy integers using comptime. These changes reduce debugging time, prevent common ownership issues, and extend language features, delivering measurable business value and faster developer feedback.
February 2026
5 Commits • 5 Features
Feb 1, 2026February 2026 monthly summary for CQCL/guppylang: Focused on reliability, safety, and language capability improvements. Delivered five core features and fixes: improved error reporting for Guppy compilation/runtime errors (with explicit handling for numpy integer types in comptime), WASM path resolution enhancements with caller-directory based resolution and tests, an in-place array element swap function with performance gains, compile-time linearity checks for array indexing with literal indices to prevent ownership violations, and expanded boolean capabilities by adding __rxor__, __rand__, and __ror__. Also fixed a misleading error message when loading a list of numpy integers using comptime. These changes reduce debugging time, prevent common ownership issues, and extend language features, delivering measurable business value and faster developer feedback.
January 2026
2 Commits • 2 Features
Jan 1, 2026Monthly summary for 2026-01 focused on delivering developer productivity improvements and API clarity for Guppy. Implemented compile-time safety checks and expanded documentation for core standard library modules, aligning with reliability, onboarding, and long-term maintainability goals.
2 Commits • 2 Features
Jan 1, 2026Monthly summary for 2026-01 focused on delivering developer productivity improvements and API clarity for Guppy. Implemented compile-time safety checks and expanded documentation for core standard library modules, aligning with reliability, onboarding, and long-term maintainability goals.
January 2026
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Quality Metrics
Correctness97.6%
Maintainability87.6%
Architecture92.6%
Performance87.6%
AI Usage32.6%
Skills & Technologies
Programming Languages
Python
Technical Skills
PythonPython programmingarray manipulationbackend developmentcompiler designdocumentationerror handlingstatic analysistestingunit testing
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