Typecore (odoc.stdlib.Typecore)

type type_forcing_context =

| If_conditional

| If_no_else_branch

| While_loop_conditional

| While_loop_body

| For_loop_start_index

| For_loop_stop_index

| For_loop_body

| Assert_condition

| Sequence_left_hand_side

| When_guard

type type_expected = private {

ty : Types.type_expr;

explanation : type_forcing_context option;

}

val mk_expected : ?explanation:type_forcing_context -> Types.type_expr -> type_expected

val is_nonexpansive : Typedtree.expression -> bool

module Datatype_kind : sig ... end

type wrong_name = {

type_path : Path.t;

kind : Datatype_kind.t;

name : string Asttypes.loc;

valid_names : string list;

}

type existential_restriction =

`\| At_toplevel`	(* no existential types at the toplevel *)
`\| In_group`	(* nor with `let ... and ...` *)
`\| In_rec`	(* or recursive definition *)
`\| With_attributes`	(* or `let[@any_attribute] = ...` *)
`\| In_class_args`	(* or in class arguments `class c (...) = ...` *)
`\| In_class_def`	(* or in `class c = let ... in ...` *)
`\| In_self_pattern`	(* or in self pattern *)

val type_binding : Env.t -> Asttypes.rec_flag -> Parsetree.value_binding list -> Typedtree.value_binding list * Env.t

val type_let : existential_restriction -> Env.t -> Asttypes.rec_flag -> Parsetree.value_binding list -> Typedtree.value_binding list * Env.t

val type_expression : Env.t -> Parsetree.expression -> Typedtree.expression

val type_class_arg_pattern : string -> Env.t -> Env.t -> Asttypes.arg_label -> Parsetree.pattern -> Typedtree.pattern * (Ident.t * Ident.t * Types.type_expr) list * Env.t * Env.t

val type_self_pattern : string -> Types.type_expr -> Env.t -> Env.t -> Env.t -> Parsetree.pattern -> Typedtree.pattern * (Ident.t * Types.type_expr) Types.Meths.t ref * (Ident.t * Asttypes.mutable_flag * Asttypes.virtual_flag * Types.type_expr) Types.Vars.t ref * Env.t * Env.t * Env.t

val check_partial : ?lev:int -> Env.t -> Types.type_expr -> Location.t -> Typedtree.value Typedtree.case list -> Typedtree.partial

val type_expect : ?in_function:(Location.t * Types.type_expr) -> Env.t -> Parsetree.expression -> type_expected -> Typedtree.expression

val type_exp : Env.t -> Parsetree.expression -> Typedtree.expression

val type_approx : Env.t -> Parsetree.expression -> Types.type_expr

val type_argument : Env.t -> Parsetree.expression -> Types.type_expr -> Types.type_expr -> Typedtree.expression

val option_some : Env.t -> Typedtree.expression -> Typedtree.expression

val option_none : Env.t -> Types.type_expr -> Location.t -> Typedtree.expression

val extract_option_type : Env.t -> Types.type_expr -> Types.type_expr

val generalizable : int -> Types.type_expr -> bool

val reset_delayed_checks : unit -> unit

val force_delayed_checks : unit -> unit

val name_pattern : string -> Typedtree.pattern list -> Ident.t

val name_cases : string -> Typedtree.value Typedtree.case list -> Ident.t

val self_coercion : (Path.t * Location.t list ref) list ref

type error =

| Constructor_arity_mismatch of Longident.t * int * int

| Label_mismatch of Longident.t * Ctype.Unification_trace.t

| Pattern_type_clash : Ctype.Unification_trace.t * _ Typedtree.pattern_desc option -> error

| Or_pattern_type_clash of Ident.t * Ctype.Unification_trace.t

| Multiply_bound_variable of string

| Orpat_vars of Ident.t * Ident.t list

| Expr_type_clash of Ctype.Unification_trace.t * type_forcing_context option * Typedtree.expression_desc option

| Apply_non_function of Types.type_expr

| Apply_wrong_label of Asttypes.arg_label * Types.type_expr * bool

| Label_multiply_defined of string

| Label_missing of Ident.t list

| Label_not_mutable of Longident.t

| Wrong_name of string * type_expected * wrong_name

| Name_type_mismatch of Datatype_kind.t * Longident.t * Path.t * Path.t * (Path.t * Path.t) list

| Invalid_format of string

| Undefined_method of Types.type_expr * string * string list option

| Undefined_inherited_method of string * string list

| Virtual_class of Longident.t

| Private_type of Types.type_expr

| Private_label of Longident.t * Types.type_expr

| Private_constructor of Types.constructor_description * Types.type_expr

| Unbound_instance_variable of string * string list

| Instance_variable_not_mutable of string

| Not_subtype of Ctype.Unification_trace.t * Ctype.Unification_trace.t

| Outside_class

| Value_multiply_overridden of string

| Coercion_failure of Types.type_expr * Types.type_expr * Ctype.Unification_trace.t * bool

| Too_many_arguments of bool * Types.type_expr * type_forcing_context option

| Abstract_wrong_label of Asttypes.arg_label * Types.type_expr * type_forcing_context option

| Scoping_let_module of string * Types.type_expr

| Not_a_variant_type of Longident.t

| Incoherent_label_order

| Less_general of string * Ctype.Unification_trace.t

| Modules_not_allowed

| Cannot_infer_signature

| Not_a_packed_module of Types.type_expr

| Unexpected_existential of existential_restriction * string * string list

| Invalid_interval

| Invalid_for_loop_index

| No_value_clauses

| Exception_pattern_disallowed

| Mixed_value_and_exception_patterns_under_guard

| Inlined_record_escape

| Inlined_record_expected

| Unrefuted_pattern of Typedtree.pattern

| Invalid_extension_constructor_payload

| Not_an_extension_constructor

| Literal_overflow of string

| Unknown_literal of string * char

| Illegal_letrec_pat

| Illegal_letrec_expr

| Illegal_class_expr

| Letop_type_clash of string * Ctype.Unification_trace.t

| Andop_type_clash of string * Ctype.Unification_trace.t

| Bindings_type_clash of Ctype.Unification_trace.t

exception Error of Location.t * Env.t * error

exception Error_forward of Location.error

val report_error : loc:Location.t -> Env.t -> error -> Location.error

deprecated
. Use Location.error_of_exn, Location.print_report.

val type_module : (Env.t -> Parsetree.module_expr -> Typedtree.module_expr) ref

val type_open : (?used_slot:bool ref -> Asttypes.override_flag -> Env.t -> Location.t -> Longident.t Asttypes.loc -> Path.t * Env.t) ref

val type_open_decl : (?used_slot:bool ref -> Env.t -> Parsetree.open_declaration -> Typedtree.open_declaration * Types.signature * Env.t) ref

val type_object : (Env.t -> Location.t -> Parsetree.class_structure -> Typedtree.class_structure * Types.class_signature * string list) ref

val type_package : (Env.t -> Parsetree.module_expr -> Path.t -> Longident.t list -> Typedtree.module_expr * Types.type_expr list) ref

val create_package_type : Location.t -> Env.t -> (Longident.t * (Longident.t * Parsetree.core_type) list) -> Path.t * (Longident.t * Typedtree.core_type) list * Types.type_expr

val constant : Parsetree.constant -> (Asttypes.constant, error) result

val check_recursive_bindings : Env.t -> Typedtree.value_binding list -> unit

val check_recursive_class_bindings : Env.t -> Ident.t list -> Typedtree.class_expr list -> unit