Glasgow Haskell Compiler
9.4.0.20220721
  • 1. Introduction
  • 2. Release notes
  • 3. Using GHCi
  • 4. Using runghc
  • 5. Using GHC
  • 6. Language extensions
    • 6.1. Introduction
    • 6.2. Syntax
    • 6.3. Import and export
    • 6.4. Types
    • 6.5. Records
      • 6.5.1. Traditional record syntax
      • 6.5.2. Field selectors and TypeApplications
      • 6.5.3. Record field disambiguation
      • 6.5.4. Duplicate record fields
      • 6.5.5. Field selectors
      • 6.5.6. Record puns
      • 6.5.7. Record wildcards
      • 6.5.8. Record field selector polymorphism
      • 6.5.9. Overloaded record dot
      • 6.5.10. Overloaded record update
    • 6.6. Deriving mechanism
    • 6.7. Patterns
    • 6.8. Class and instances declarations
    • 6.9. Literals
    • 6.10. Constraints
    • 6.11. Type signatures
    • 6.12. Bindings and generalisation
    • 6.13. Template Haskell
    • 6.14. Bang patterns and Strict Haskell
    • 6.15. Parallel and Concurrent
    • 6.16. Unboxed types and primitive operations
    • 6.17. Foreign function interface (FFI)
    • 6.18. Safe Haskell
    • 6.19. Miscellaneous
    • 6.20. Pragmas
  • 7. Extending and using GHC as a Library
  • 8. Profiling
  • 9. Debugging compiled programs
  • 10. What to do when something goes wrong
  • 11. Hints
  • 12. Other Haskell utility programs
  • 13. Running GHC on Win32 systems
  • 14. Known bugs and infelicities
  • 15. Eventlog encodings
  • 16. Care and feeding of your GHC User’s Guide
Glasgow Haskell Compiler
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  • 6. Language extensions »
  • 6.5. Records
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6.5. Records¶

  • 6.5.1. Traditional record syntax
  • 6.5.2. Field selectors and TypeApplications
  • 6.5.3. Record field disambiguation
  • 6.5.4. Duplicate record fields
  • 6.5.5. Field selectors
  • 6.5.6. Record puns
  • 6.5.7. Record wildcards
  • 6.5.8. Record field selector polymorphism
  • 6.5.9. Overloaded record dot
  • 6.5.10. Overloaded record update
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