package ocaml-migrate-parsetree

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package ocaml-migrate-parsetree
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type missing_feature =
  1. | Pexp_letexception
  2. | Ppat_open
  3. | Pexp_unreachable
  4. | PSig
  5. | Pcstr_record
  6. | Pconst_integer
  7. | Pconst_float
  8. | Pcl_open
  9. | Pcty_open
  10. | Oinherit
  11. | Pwith_typesubst_longident
  12. | Pwith_modsubst_longident

Features which are not available in all versions of the frontend

exception Migration_error of missing_feature * Location.t

Exception thrown by migration functions when a feature is not supported.

val missing_feature_description : missing_feature -> string

missing_feature_description x is a text describing the feature x.

val missing_feature_minimal_version : missing_feature -> string

missing_feature_minimal_version x is the OCaml version where x was introduced.

val migration_error_message : missing_feature -> string

Turn a missing feature into a reasonable error message.

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