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(* *********************************************************************)
(* *)
(* The Compcert verified compiler *)
(* *)
(* Xavier Leroy, INRIA Paris-Rocquencourt *)
(* *)
(* Copyright Institut National de Recherche en Informatique et en *)
(* Automatique. All rights reserved. This file is distributed *)
(* under the terms of the GNU Lesser General Public License as *)
(* published by the Free Software Foundation, either version 2.1 of *)
(* the License, or (at your option) any later version. *)
(* This file is also distributed under the terms of the *)
(* INRIA Non-Commercial License Agreement. *)
(* *)
(* *********************************************************************)
(** Definitions used by .v files generated by clightgen -csyntax *)
From Coq Require Import List.
From compcert Require Import Maps Errors AST Ctypes Csyntax.
From compcert Require Export Ctypesdefs.
(** ** Constructor for programs and compilation units *)
Definition wf_composites (types: list composite_definition) : Prop :=
match build_composite_env types with OK _ => True | Error _ => False end.
Definition build_composite_env' (types: list composite_definition)
(WF: wf_composites types)
: { ce | build_composite_env types = OK ce }.
Proof.
revert WF. unfold wf_composites. case (build_composite_env types); intros.
- exists c; reflexivity.
- contradiction.
Defined.
Definition mkprogram (types: list composite_definition)
(defs: list (ident * globdef fundef type))
(public: list ident)
(main: ident)
(WF: wf_composites types) : Csyntax.program :=
let (ce, EQ) := build_composite_env' types WF in
{| prog_defs := defs;
prog_public := public;
prog_main := main;
prog_types := types;
prog_comp_env := ce;
prog_comp_env_eq := EQ |}.
(** ** Notations *)
Module CsyntaxNotations.
(** A convenient notation [$ "ident"] to force evaluation of
[ident_of_string "ident"] *)
Ltac ident_of_string s :=
let x := constr:(ident_of_string s) in
let y := eval compute in x in
exact y.
Notation "$ s" := (ltac:(ident_of_string s))
(at level 1, only parsing) : csyntax_scope.
End CsyntaxNotations.
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