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(* Copyright (c) 2008, Adam Chlipala
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - The names of contributors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*)
structure Source = struct
type 'a located = 'a ErrorMsg.located
datatype kind' =
KType
| KArrow of kind * kind
| KName
| KRecord of kind
| KUnit
| KTuple of kind list
| KWild
| KFun of string * kind
| KVar of string
withtype kind = kind' located
datatype explicitness =
Explicit
| Implicit
datatype con' =
CAnnot of con * kind
| TFun of con * con
| TCFun of explicitness * string * kind * con
| TRecord of con
| TDisjoint of con * con * con
| CVar of string list * string
| CApp of con * con
| CAbs of string * kind option * con
| CKAbs of string * con
| TKFun of string * con
| CName of string
| CRecord of (con * con) list
| CConcat of con * con
| CMap
| CUnit
| CTuple of con list
| CProj of con * int
| CWild of kind
withtype con = con' located
datatype inference =
Infer
| DontInfer
| TypesOnly
datatype sgn_item' =
SgiConAbs of string * kind
| SgiCon of string * kind option * con
| SgiDatatype of (string * string list * (string * con option) list) list
| SgiDatatypeImp of string * string list * string
| SgiVal of string * con
| SgiTable of string * con * exp * exp
| SgiStr of string * sgn
| SgiSgn of string * sgn
| SgiInclude of sgn
| SgiConstraint of con * con
| SgiClassAbs of string * kind
| SgiClass of string * kind * con
and sgn' =
SgnConst of sgn_item list
| SgnVar of string
| SgnFun of string * sgn * sgn
| SgnWhere of sgn * string * con
| SgnProj of string * string list * string
and pat' =
PWild
| PVar of string
| PPrim of Prim.t
| PCon of string list * string * pat option
| PRecord of (string * pat) list * bool
| PAnnot of pat * con
and exp' =
EAnnot of exp * con
| EPrim of Prim.t
| EVar of string list * string * inference
| EApp of exp * exp
| EAbs of string * con option * exp
| ECApp of exp * con
| ECAbs of explicitness * string * kind * exp
| EDisjoint of con * con * exp
| EDisjointApp of exp
| EKAbs of string * exp
| ERecord of (con * exp) list
| EField of exp * con
| EConcat of exp * exp
| ECut of exp * con
| ECutMulti of exp * con
| EWild
| ECase of exp * (pat * exp) list
| ELet of edecl list * exp
and edecl' =
EDVal of pat * exp
| EDValRec of (string * con option * exp) list
withtype sgn_item = sgn_item' located
and sgn = sgn' located
and pat = pat' located
and exp = exp' located
and edecl = edecl' located
datatype decl' =
DCon of string * kind option * con
| DDatatype of (string * string list * (string * con option) list) list
| DDatatypeImp of string * string list * string
| DVal of string * con option * exp
| DValRec of (string * con option * exp) list
| DSgn of string * sgn
| DStr of string * sgn option * str
| DFfiStr of string * sgn
| DOpen of string * string list
| DConstraint of con * con
| DOpenConstraints of string * string list
| DExport of str
| DTable of string * con * exp * exp
| DSequence of string
| DView of string * exp
| DClass of string * kind * con
| DDatabase of string
| DCookie of string * con
| DStyle of string
and str' =
StrConst of decl list
| StrVar of string
| StrProj of str * string
| StrFun of string * sgn * sgn option * str
| StrApp of str * str
withtype decl = decl' located
and str = str' located
type file = decl list
end
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