ocaml-migrate-parsetree

Convert OCaml parsetrees between different versions
package ocaml-migrate-parsetree
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Library ocaml-migrate-parsetree
Module Migrate_parsetree . Migrate_406_405 . Def
type missing_feature =
| Pexp_letexception
| Ppat_open
| Pexp_unreachable
| PSig
| Pcstr_record
| Pconst_integer
| Pconst_float
| Pcl_open
| Pcty_open
| Oinherit
| Pwith_typesubst_longident
| Pwith_modsubst_longident
| Pexp_open
| Pexp_letop
| Psig_typesubst
| Psig_modsubst
| Otyp_module
| Immediate64
| Anonymous_let_module
| Anonymous_unpack
| Anonymous_module_binding
| Anonymous_module_declaration

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.