package ocaml-base-compiler

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in-package search v0.2.0

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type surface_variance = bool * bool * bool

val variance_of_params : 
  (Parsetree.core_type * Asttypes.variance) list ->
  surface_variance list

val variance_of_sdecl : Parsetree.type_declaration -> surface_variance list

type prop = Types.Variance.t list

type req = surface_variance list

val property : (Types.Variance.t list, req) Typedecl_properties.property

type variance_error =

| Variance_not_satisfied of int
| No_variable
| Variance_not_reflected
| Variance_not_deducible

type error =

| Bad_variance of variance_error * surface_variance * surface_variance
| Varying_anonymous

exception Error of Location.t * error

val check_variance_extension : 
  Env.t ->
  Types.type_declaration ->
  Typedtree.extension_constructor ->
  (req * Location.t) ->
  unit

val compute_decl : Env.t -> check:bool -> Types.type_declaration -> req -> prop

val update_decls : 
  Env.t ->
  Parsetree.type_declaration list ->
  (Ident.t * Types.type_declaration) list ->
  (Ident.t * Types.type_declaration) list

val update_class_decls : 
  Env.t ->
  (Ident.t
   * Typedecl_properties.decl
   * Types.type_declaration
   * Types.class_declaration
   * Types.class_type_declaration
   * 'a Typedtree.class_infos)
    list ->
  (Typedecl_properties.decl
   * Types.type_declaration
   * Types.class_declaration
   * Types.class_type_declaration)
    list