Hack typechecker (hh_client)

Target entity: Hack typechecker (hh_client)
Context triple: [HHVM, hasComponent, Hack typechecker (hh_client)]

• A. Static Code Checker
  Static Code Checker is a software tool that automatically analyzes source code without executing it to detect bugs, security vulnerabilities, and style or quality issues.
• B. HHVM
  HHVM is an open-source virtual machine developed by Meta (Facebook) that executes Hack and PHP code using just-in-time (JIT) compilation for high performance.
• C. HM type system
  The HM type system is a classical polymorphic type system used in many functional programming languages, known for its ability to infer the most general types without requiring explicit type annotations.
• D. Hindley–Milner type system
  The Hindley–Milner type system is a classical polymorphic type system used in many functional programming languages, notable for enabling type inference without explicit type annotations.
• E. Hack (programming language)
  Hack is a programming language developed by Facebook as a gradually typed, PHP-compatible language that adds static typing, generics, and other modern features for safer and more scalable web development.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Hack typechecker (hh_client)
Target entity description: Hack typechecker (hh_client) is the command-line static analysis tool for the Hack programming language used to check code correctness and types in HHVM-based projects.

• A. Static Code Checker
  Static Code Checker is a software tool that automatically analyzes source code without executing it to detect bugs, security vulnerabilities, and style or quality issues.
• B. HHVM
  HHVM is an open-source virtual machine developed by Meta (Facebook) that executes Hack and PHP code using just-in-time (JIT) compilation for high performance.
• C. HM type system
  The HM type system is a classical polymorphic type system used in many functional programming languages, known for its ability to infer the most general types without requiring explicit type annotations.
• D. Hindley–Milner type system
  The Hindley–Milner type system is a classical polymorphic type system used in many functional programming languages, notable for enabling type inference without explicit type annotations.
• E. Hack (programming language)
  Hack is a programming language developed by Facebook as a gradually typed, PHP-compatible language that adds static typing, generics, and other modern features for safer and more scalable web development.
• F. None of above. chosen