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unison/unison-src/transcripts/any-extract.output.md
Greg Pfeil 0031542faf
Add a space before code block info strings 
This is for consistency with the `cmark` style. Now the blocks we still
pretty-print ourselves will match the bulk of them that `cmark`
produces.
2024-07-10 13:56:07 -06:00

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Unit tests for Any.unsafeExtract

Any.unsafeExtract is a way to extract the value contained in an Any. This is unsafe because it allows the programmer to coerce a value into any type, which would cause undefined behaviour if used to coerce a value to the wrong type.

test> Any.unsafeExtract.works =
  use Nat !=
  checks [1 == Any.unsafeExtract (Any 1),
          not (1 == Any.unsafeExtract (Any 2)),
          (Some 1) == Any.unsafeExtract (Any (Some 1))
         ]


  Loading changes detected in scratch.u.

  I found and typechecked these definitions in scratch.u. If you
  do an `add` or `update`, here's how your codebase would
  change:
  
    ⍟ These new definitions are ok to `add`:
    
      Any.unsafeExtract.works : [Result]
  
  Now evaluating any watch expressions (lines starting with
  `>`)... Ctrl+C cancels.

    3 |   checks [1 == Any.unsafeExtract (Any 1),
    
    ✅ Passed Passed


scratch/main> add

  ⍟ I've added these definitions:
  
    Any.unsafeExtract.works : [Result]