joernio/joern
Jul 2025 – Feb 2026
2 Months active
Languages Used
JavaScala
Technical Skills
Code AnalysisJava DevelopmentPython ParsingScala DevelopmentStatic AnalysisAST Generation
Fabian Yamaguchi
PROFILE
Fabian Yamaguchi
Fabian Yamaguchi contributed to the joernio/joern repository by improving the accuracy and reliability of code analysis tools for Python and C#. He enhanced the ImportsPass to correctly resolve and represent relative Python imports, ensuring proper IMPORT node creation in the code property graph and adding targeted tests to validate this behavior. In C#, he consolidated and corrected AST generation for is expressions and related nodes, reducing false positives and negatives in static analysis. Fabian’s work leveraged skills in code analysis, AST generation, and languages such as Scala and Java, demonstrating a thoughtful approach to deep, correctness-focused engineering challenges.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
2Total
Bugs
2
Commits
2
Features
0
Lines of code
68
Activity Months2
Your Network
22 peopleShared Repositories
22
Work History
February 2026
1 Commits
Feb 1, 2026February 2026 summary for joernio/joern: Focused on improving the correctness of C# AST generation within the code analysis tool. Delivered a targeted bug fix addressing is expressions and related AST nodes, consolidating two previously incorrect AST fixes into a single patch. This work enhances parsing accuracy, reduces potential false positives/negatives in C# code analysis, and strengthens the reliability of the AST pipeline.
1 Commits
Feb 1, 2026February 2026 summary for joernio/joern: Focused on improving the correctness of C# AST generation within the code analysis tool. Delivered a targeted bug fix addressing is expressions and related AST nodes, consolidating two previously incorrect AST fixes into a single patch. This work enhances parsing accuracy, reduces potential false positives/negatives in C# code analysis, and strengthens the reliability of the AST pipeline.
February 2026
July 2025
1 Commits
Jul 1, 2025Month: 2025-07 — Focused on correctness and test coverage for code property graph Python imports. Delivered a targeted bug fix that improves resolution and representation of relative imports (from . import Bar) in the ImportsPass, with an accompanying test to validate IMPORT node creation.
July 2025
1 Commits
Jul 1, 2025Month: 2025-07 — Focused on correctness and test coverage for code property graph Python imports. Delivered a targeted bug fix that improves resolution and representation of relative imports (from . import Bar) in the ImportsPass, with an accompanying test to validate IMPORT node creation.
Activity
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Quality Metrics
Correctness90.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaScala
Technical Skills
AST GenerationC#Code AnalysisJava DevelopmentPython ParsingScalaScala DevelopmentStatic Analysis
Repositories Contributed To
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