ruby/ruby
Feb 2025 – Feb 2025
1 Month active
Languages Used
C
Technical Skills
C programmingMemory managementSystem programming
HASUMI Hitoshi
PROFILE
Hasumi Hitoshi
Worked on build system management and system programming across the ruby/ruby, ruby/prism, and rbenv/ruby-build repositories, focusing on C and Shell. Delivered MRuby 3.4.0 installation support in ruby-build by defining a new package with version-specific metadata, streamlining developer onboarding and CI workflows. In ruby/prism and ruby/ruby, addressed memory management and error handling by ensuring robust zero-sized allocation handling for constant-id lists, setting pointers to NULL for capacity zero to maintain portable calloc behavior and compatibility with free and realloc. These changes reduced crash risk and improved integration with MRuby, reflecting careful attention to cross-platform reliability.
Overall Statistics
Feature vs Bugs
33%Features
Repository Contributions
3Total
Bugs
2
Commits
3
Features
1
Lines of code
17
Activity Months2
Your Network
372 peopleWork History
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025: Delivered MRuby 3.4.0 installation support in rbenv/ruby-build by adding a new installation package definition (download URL and checksum), enabling seamless MRuby 3.4.0 installs. No major bugs fixed this month; focus was on feature delivery, code quality, and repository health. This expands MRuby coverage and improves CI/dev onboarding.
1 Commits • 1 Features
Apr 1, 2025April 2025: Delivered MRuby 3.4.0 installation support in rbenv/ruby-build by adding a new installation package definition (download URL and checksum), enabling seamless MRuby 3.4.0 installs. No major bugs fixed this month; focus was on feature delivery, code quality, and repository health. This expands MRuby coverage and improves CI/dev onboarding.
April 2025
February 2025
2 Commits
Feb 1, 2025February 2025 monthly summary focusing on key accomplishments, major bugs fixed, and overall impact. Robust zero-sized allocation handling improvements were implemented for constant-id list initialization across the Prism C extension and its Ruby integration, setting list->ids to NULL when capacity is 0 to ensure portable calloc behavior and compatibility with free/realloc. This reduces crash risk in empty-list scenarios and supports MRuby integration. Commits: 1c32252df737d9de0022dd9bba86bcb42bae3986, 31162bf4261b2e740f6e26f2c2f22c36d3556cf0.
February 2025
2 Commits
Feb 1, 2025February 2025 monthly summary focusing on key accomplishments, major bugs fixed, and overall impact. Robust zero-sized allocation handling improvements were implemented for constant-id list initialization across the Prism C extension and its Ruby integration, setting list->ids to NULL when capacity is 0 to ensure portable calloc behavior and compatibility with free/realloc. This reduces crash risk in empty-list scenarios and supports MRuby integration. Commits: 1c32252df737d9de0022dd9bba86bcb42bae3986, 31162bf4261b2e740f6e26f2c2f22c36d3556cf0.
Activity
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Quality Metrics
Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance100.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CShell
Technical Skills
Build System ManagementC ProgrammingC programmingError HandlingMemory ManagementMemory managementSystem programming
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
ruby/prism
Feb 2025 – Feb 2025
1 Month active
Languages Used
C
Technical Skills
C ProgrammingError HandlingMemory Management
rbenv/ruby-build
Apr 2025 – Apr 2025
1 Month active
Languages Used
Shell
Technical Skills
Build System Management