84 lines
3.8 KiB
OCaml
84 lines
3.8 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Objective Caml *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the Q Public License version 1.0. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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(* Typechecking of type expressions for the core language *)
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open Format;;
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val transl_simple_type:
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Env.t -> bool -> Parsetree.core_type -> Types.type_expr
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val transl_simple_type_univars:
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Env.t -> Parsetree.core_type -> Types.type_expr
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val transl_simple_type_delayed:
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Env.t -> Parsetree.core_type -> Types.type_expr * (unit -> unit)
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(* Translate a type, but leave type variables unbound. Returns
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the type and a function that binds the type variable. *)
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val transl_type_scheme:
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Env.t -> Parsetree.core_type -> Types.type_expr
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val reset_type_variables: unit -> unit
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val enter_type_variable: bool -> Location.t -> string -> Types.type_expr
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val type_variable: Location.t -> string -> Types.type_expr
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type variable_context
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val narrow: unit -> variable_context
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val widen: variable_context -> unit
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exception Already_bound
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type error =
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Unbound_type_variable of string
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| Unbound_type_constructor of Longident.t
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| Unbound_type_constructor_2 of Path.t
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| Type_arity_mismatch of Longident.t * int * int
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| Bound_type_variable of string
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| Recursive_type
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| Unbound_row_variable of Longident.t
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| Type_mismatch of (Types.type_expr * Types.type_expr) list
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| Alias_type_mismatch of (Types.type_expr * Types.type_expr) list
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| Present_has_conjunction of string
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| Present_has_no_type of string
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| Constructor_mismatch of Types.type_expr * Types.type_expr
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| Not_a_variant of Types.type_expr
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| Variant_tags of string * string
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| Invalid_variable_name of string
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| Cannot_quantify of string * Types.type_expr
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| Multiple_constraints_on_type of string
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| Repeated_method_label of string
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| Unbound_value of Longident.t
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| Unbound_constructor of Longident.t
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| Unbound_label of Longident.t
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| Unbound_module of Longident.t
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| Unbound_class of Longident.t
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| Unbound_modtype of Longident.t
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| Unbound_cltype of Longident.t
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| Ill_typed_functor_application of Longident.t
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exception Error of Location.t * error
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val report_error: formatter -> error -> unit
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(* Support for first-class modules. *)
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val transl_modtype_longident: (Location.t -> Env.t -> Longident.t -> Path.t) ref (* from Typemod *)
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val transl_modtype: (Env.t -> Parsetree.module_type -> Types.module_type) ref (* from Typemod *)
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val create_package_mty: Location.t -> Env.t -> Parsetree.package_type -> (string * Parsetree.core_type) list * Parsetree.module_type
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val find_type: Env.t -> Location.t -> Longident.t -> Path.t * Types.type_declaration
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val find_constructor: Env.t -> Location.t -> Longident.t -> Types.constructor_description
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val find_label: Env.t -> Location.t -> Longident.t -> Types.label_description
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val find_value: Env.t -> Location.t -> Longident.t -> Path.t * Types.value_description
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val find_class: Env.t -> Location.t -> Longident.t -> Path.t * Types.class_declaration
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val find_module: Env.t -> Location.t -> Longident.t -> Path.t * Types.module_type
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val find_modtype: Env.t -> Location.t -> Longident.t -> Path.t * Types.modtype_declaration
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val find_cltype: Env.t -> Location.t -> Longident.t -> Path.t * Types.cltype_declaration
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