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Emit `E_inline_michelson` directly from `%michelson`

E. Rivas requested to merge er433/poc/michsyntax into dev

Motivation and Context

Instead of using E_raw_code, we can use E_inline_michelson to pass arguments. This allows for more clear inlinings in which the arguments are passed directly. E.g., this inliine

let create_ticket (type a) (v : a) (n : nat) : a ticket =
  [%Michelson ({| { UNPAIR ; TICKET } |} : a * nat -> a ticket)] (v, n)


let create_ticket (type a) (v : a) (n : nat) : a ticket =
  [%michelson ({| { TICKET } |} v n : a ticket)]


This MR implements the changes using E_inline_michelson. It updates the stdlib to use this form of inlining.


  • compiler
  • website
  • webide
  • vscode-plugin
  • debugger

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • Performance improvement (non-breaking change that improves performance)
  • None (change with no changelog)



  • Changes follow the existing coding style (use dune @fmt to check).
  • Tests for the changes have been added (for bug fixes / feature).
  • Documentation has been updated.
  • Changelog description has been added (if appropriate).
  • Start titles under ## Changelog section with #### (if appropriate).
  • There is no image or uploaded file in changelog
  • Examples in changed behaviour have been added to the changelog (for breaking change / feature).
Edited by E. Rivas

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