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149 lines
4.4 KiB
OCaml
149 lines
4.4 KiB
OCaml
(* This file is part of the Catala compiler, a specification language for tax and social benefits
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computation rules. Copyright (C) 2020 Inria, contributor: Denis Merigoux
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<denis.merigoux@inria.fr>
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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in compliance with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software distributed under the License
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is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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or implied. See the License for the specific language governing permissions and limitations under
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the License. *)
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(** Abstract syntax tree of the scope language *)
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open Utils
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(** {1 Identifiers} *)
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module ScopeName = Dcalc.Ast.ScopeName
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module ScopeNameSet : Set.S with type elt = ScopeName.t
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module ScopeMap : Map.S with type key = ScopeName.t
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module SubScopeName : Uid.Id with type info = Uid.MarkedString.info
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module SubScopeNameSet : Set.S with type elt = SubScopeName.t
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module SubScopeMap : Map.S with type key = SubScopeName.t
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module ScopeVar : Uid.Id with type info = Uid.MarkedString.info
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module ScopeVarSet : Set.S with type elt = ScopeVar.t
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module ScopeVarMap : Map.S with type key = ScopeVar.t
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module StructName = Dcalc.Ast.StructName
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module StructMap = Dcalc.Ast.StructMap
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module StructFieldName = Dcalc.Ast.StructFieldName
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module StructFieldMap : Map.S with type key = StructFieldName.t
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module EnumName = Dcalc.Ast.EnumName
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module EnumMap = Dcalc.Ast.EnumMap
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module EnumConstructor = Dcalc.Ast.EnumConstructor
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module EnumConstructorMap : Map.S with type key = EnumConstructor.t
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type location =
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| ScopeVar of ScopeVar.t Pos.marked
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| SubScopeVar of ScopeName.t * SubScopeName.t Pos.marked * ScopeVar.t Pos.marked
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module LocationSet : Set.S with type elt = location Pos.marked
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(** {1 Abstract syntax tree} *)
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type typ =
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| TLit of Dcalc.Ast.typ_lit
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| TStruct of StructName.t
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| TEnum of EnumName.t
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| TArrow of typ Pos.marked * typ Pos.marked
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| TArray of typ
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| TAny
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(** The expressions use the {{:https://lepigre.fr/ocaml-bindlib/} Bindlib} library, based on
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higher-order abstract syntax*)
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type expr =
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| ELocation of location
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| EVar of expr Bindlib.var Pos.marked
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| EStruct of StructName.t * expr Pos.marked StructFieldMap.t
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| EStructAccess of expr Pos.marked * StructFieldName.t * StructName.t
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| EEnumInj of expr Pos.marked * EnumConstructor.t * EnumName.t
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| EMatch of expr Pos.marked * EnumName.t * expr Pos.marked EnumConstructorMap.t
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| ELit of Dcalc.Ast.lit
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| EAbs of (expr, expr Pos.marked) Bindlib.mbinder Pos.marked * typ Pos.marked list
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| EApp of expr Pos.marked * expr Pos.marked list
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| EOp of Dcalc.Ast.operator
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| EDefault of expr Pos.marked list * expr Pos.marked * expr Pos.marked
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| EIfThenElse of expr Pos.marked * expr Pos.marked * expr Pos.marked
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| EArray of expr Pos.marked list
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| ErrorOnEmpty of expr Pos.marked
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val locations_used : expr Pos.marked -> LocationSet.t
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type rule =
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| Definition of location Pos.marked * typ Pos.marked * expr Pos.marked
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| Assertion of expr Pos.marked
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| Call of ScopeName.t * SubScopeName.t
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type visibility = {
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visibility_output : bool; (** True if present in the scope's output *)
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visibility_input : bool; (** True if present in the scope's input (reentrant) *)
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}
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type scope_decl = {
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scope_decl_name : ScopeName.t;
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scope_sig : typ Pos.marked ScopeVarMap.t;
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scope_decl_rules : rule list;
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}
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type struct_ctx = (StructFieldName.t * typ Pos.marked) list StructMap.t
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type enum_ctx = (EnumConstructor.t * typ Pos.marked) list EnumMap.t
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type program = {
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program_scopes : scope_decl ScopeMap.t;
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program_enums : enum_ctx;
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program_structs : struct_ctx;
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}
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(** {1 Variable helpers} *)
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module Var : sig
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type t = expr Bindlib.var
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val make : string Pos.marked -> t
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val compare : t -> t -> int
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end
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module VarMap : Map.S with type key = Var.t
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type vars = expr Bindlib.mvar
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val make_var : Var.t Pos.marked -> expr Pos.marked Bindlib.box
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val make_abs :
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vars ->
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expr Pos.marked Bindlib.box ->
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Pos.t ->
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typ Pos.marked list ->
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Pos.t ->
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expr Pos.marked Bindlib.box
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val make_app :
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expr Pos.marked Bindlib.box ->
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expr Pos.marked Bindlib.box list ->
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Pos.t ->
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expr Pos.marked Bindlib.box
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val make_let_in :
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Var.t ->
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typ Pos.marked ->
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expr Pos.marked Bindlib.box ->
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expr Pos.marked Bindlib.box ->
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expr Pos.marked Bindlib.box
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