276 lines
8.7 KiB
OCaml
276 lines
8.7 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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(* Abstract syntax tree produced by parsing *)
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open Asttypes
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(* Type expressions for the core language *)
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type core_type =
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{ ptyp_desc: core_type_desc;
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ptyp_loc: Location.t }
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and core_type_desc =
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Ptyp_any
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| Ptyp_var of string
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| Ptyp_arrow of label * core_type * core_type
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| Ptyp_tuple of core_type list
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| Ptyp_constr of Longident.t * core_type list
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| Ptyp_object of core_field_type list
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| Ptyp_class of Longident.t * core_type list * label list
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| Ptyp_alias of core_type * string
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| Ptyp_variant of row_field list * bool * label list option
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| Ptyp_poly of string list * core_type
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and core_field_type =
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{ pfield_desc: core_field_desc;
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pfield_loc: Location.t }
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and core_field_desc =
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Pfield of string * core_type
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| Pfield_var
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and row_field =
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Rtag of label * bool * core_type list
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| Rinherit of core_type
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(* XXX Type expressions for the class language *)
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type 'a class_infos =
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{ pci_virt: virtual_flag;
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pci_params: string list * Location.t;
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pci_name: string;
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pci_expr: 'a;
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pci_variance: (bool * bool) list;
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pci_loc: Location.t }
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(* Value expressions for the core language *)
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type pattern =
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{ ppat_desc: pattern_desc;
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ppat_loc: Location.t }
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and pattern_desc =
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Ppat_any
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| Ppat_var of string
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| Ppat_alias of pattern * string
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| Ppat_constant of constant
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| Ppat_tuple of pattern list
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| Ppat_construct of Longident.t * pattern option * bool
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| Ppat_variant of label * pattern option
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| Ppat_record of (Longident.t * pattern) list
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| Ppat_array of pattern list
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| Ppat_or of pattern * pattern
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| Ppat_constraint of pattern * core_type
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| Ppat_type of Longident.t
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type expression =
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{ pexp_desc: expression_desc;
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pexp_loc: Location.t }
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and expression_desc =
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Pexp_ident of Longident.t
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| Pexp_constant of constant
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| Pexp_let of rec_flag * (pattern * expression) list * expression
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| Pexp_function of label * expression option * (pattern * expression) list
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| Pexp_apply of expression * (label * expression) list
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| Pexp_match of expression * (pattern * expression) list
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| Pexp_try of expression * (pattern * expression) list
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| Pexp_tuple of expression list
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| Pexp_construct of Longident.t * expression option * bool
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| Pexp_variant of label * expression option
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| Pexp_record of (Longident.t * expression) list * expression option
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| Pexp_field of expression * Longident.t
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| Pexp_setfield of expression * Longident.t * expression
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| Pexp_array of expression list
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| Pexp_ifthenelse of expression * expression * expression option
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| Pexp_sequence of expression * expression
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| Pexp_while of expression * expression
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| Pexp_for of string * expression * expression * direction_flag * expression
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| Pexp_constraint of expression * core_type option * core_type option
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| Pexp_when of expression * expression
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| Pexp_send of expression * string
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| Pexp_new of Longident.t
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| Pexp_setinstvar of string * expression
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| Pexp_override of (string * expression) list
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| Pexp_letmodule of string * module_expr * expression
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| Pexp_assert of expression
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| Pexp_assertfalse
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| Pexp_lazy of expression
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| Pexp_poly of expression * core_type option
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| Pexp_object of class_structure
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(* Value descriptions *)
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and value_description =
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{ pval_type: core_type;
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pval_prim: string list }
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(* Type declarations *)
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and type_declaration =
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{ ptype_params: string list;
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ptype_cstrs: (core_type * core_type * Location.t) list;
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ptype_kind: type_kind;
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ptype_private: private_flag;
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ptype_manifest: core_type option;
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ptype_variance: (bool * bool) list;
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ptype_loc: Location.t }
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and type_kind =
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Ptype_abstract
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| Ptype_variant of (string * core_type list * Location.t) list
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| Ptype_record of
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(string * mutable_flag * core_type * Location.t) list
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and exception_declaration = core_type list
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(* Type expressions for the class language *)
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and class_type =
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{ pcty_desc: class_type_desc;
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pcty_loc: Location.t }
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and class_type_desc =
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Pcty_constr of Longident.t * core_type list
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| Pcty_signature of class_signature
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| Pcty_fun of label * core_type * class_type
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and class_signature = core_type * class_type_field list
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and class_type_field =
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Pctf_inher of class_type
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| Pctf_val of (string * mutable_flag * virtual_flag * core_type * Location.t)
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| Pctf_virt of (string * private_flag * core_type * Location.t)
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| Pctf_meth of (string * private_flag * core_type * Location.t)
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| Pctf_cstr of (core_type * core_type * Location.t)
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and class_description = class_type class_infos
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and class_type_declaration = class_type class_infos
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(* Value expressions for the class language *)
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and class_expr =
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{ pcl_desc: class_expr_desc;
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pcl_loc: Location.t }
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and class_expr_desc =
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Pcl_constr of Longident.t * core_type list
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| Pcl_structure of class_structure
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| Pcl_fun of label * expression option * pattern * class_expr
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| Pcl_apply of class_expr * (label * expression) list
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| Pcl_let of rec_flag * (pattern * expression) list * class_expr
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| Pcl_constraint of class_expr * class_type
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and class_structure = pattern * class_field list
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and class_field =
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Pcf_inher of class_expr * string option
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| Pcf_valvirt of (string * mutable_flag * core_type * Location.t)
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| Pcf_val of (string * mutable_flag * expression * Location.t)
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| Pcf_virt of (string * private_flag * core_type * Location.t)
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| Pcf_meth of (string * private_flag * expression * Location.t)
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| Pcf_cstr of (core_type * core_type * Location.t)
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| Pcf_let of rec_flag * (pattern * expression) list * Location.t
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| Pcf_init of expression
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and class_declaration = class_expr class_infos
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(* Type expressions for the module language *)
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and module_type =
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{ pmty_desc: module_type_desc;
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pmty_loc: Location.t }
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and module_type_desc =
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Pmty_ident of Longident.t
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| Pmty_signature of signature
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| Pmty_functor of string * module_type * module_type
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| Pmty_with of module_type * (Longident.t * with_constraint) list
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and signature = signature_item list
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and signature_item =
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{ psig_desc: signature_item_desc;
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psig_loc: Location.t }
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and signature_item_desc =
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Psig_value of string * value_description
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| Psig_type of (string * type_declaration) list
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| Psig_exception of string * exception_declaration
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| Psig_module of string * module_type
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| Psig_recmodule of (string * module_type) list
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| Psig_modtype of string * modtype_declaration
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| Psig_open of Longident.t
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| Psig_include of module_type
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| Psig_class of class_description list
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| Psig_class_type of class_type_declaration list
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and modtype_declaration =
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Pmodtype_abstract
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| Pmodtype_manifest of module_type
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and with_constraint =
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Pwith_type of type_declaration
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| Pwith_module of Longident.t
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(* Value expressions for the module language *)
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and module_expr =
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{ pmod_desc: module_expr_desc;
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pmod_loc: Location.t }
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and module_expr_desc =
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Pmod_ident of Longident.t
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| Pmod_structure of structure
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| Pmod_functor of string * module_type * module_expr
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| Pmod_apply of module_expr * module_expr
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| Pmod_constraint of module_expr * module_type
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and structure = structure_item list
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and structure_item =
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{ pstr_desc: structure_item_desc;
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pstr_loc: Location.t }
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and structure_item_desc =
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Pstr_eval of expression
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| Pstr_value of rec_flag * (pattern * expression) list
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| Pstr_primitive of string * value_description
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| Pstr_type of (string * type_declaration) list
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| Pstr_exception of string * exception_declaration
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| Pstr_exn_rebind of string * Longident.t
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| Pstr_module of string * module_expr
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| Pstr_recmodule of (string * module_type * module_expr) list
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| Pstr_modtype of string * module_type
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| Pstr_open of Longident.t
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| Pstr_class of class_declaration list
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| Pstr_class_type of class_type_declaration list
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| Pstr_include of module_expr
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(* Toplevel phrases *)
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type toplevel_phrase =
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Ptop_def of structure
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| Ptop_dir of string * directive_argument
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and directive_argument =
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Pdir_none
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| Pdir_string of string
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| Pdir_int of int
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| Pdir_ident of Longident.t
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| Pdir_bool of bool
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