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Ceval.rml
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Ceval.rml
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(*
Copyright (c) PELAB, Dept. Computer and Information Science, Linkoping University,
Sweden, in the following denoted PELAB/LIU.
This file is part of OpenModelica, in the following denoted OSM.
The OSM License, Version 1.1, March 4, 2005.
1 Preface
The aim of this license is to lay down the conditions enabling you to use,
modify and circulate OSM. However, PELAB/LIU remain the authors of
OSM and so retain property rights and the use of all ancillary rights.
2 Definitions
OSM is defined as all successive versions of the OSM software and their
documentation that have been developed by PELAB/LIU and including
accepted contributions from other contributors according to this license.
OSM DERIVED SOFTWARE is defined as all or part of OSM that you have
modified and/or translated and/or adapted.
3 Dual License
OSM is made available under the OSM licensing scheme, which is a dual
licensing scheme with two options, a) and b):
a) OSM OPEN SOURCE LICENSE:
If you wish to write Open Source software you can use the Open Source version
of OSM, released under the OSM license which include GPL as its open source
licensing option. If you use the OSM Open Source version you must release your
Application using OSM including this Application's source code under the GPL as well.
This OSM license text, and Copyright (c) PELAB/Linkoping University, must
be present in your copy of OSM and in OSM DERIVED SOFTWARE.
You should have received a copy of the GPL - GNU General Public License
along with OpenModelica; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
b) OSM COMMERCIAL LICENSE
If you are using OSM commercially - that is, for commercial usage or
for creating proprietary software for sale or use in a commercial setting
- you must purchase a commercial license of OSM from PELAB/LIU, which allows
you to use OSM without releasing your Application under the GPL.
Comment: Payments for OSM are intended for OSM development and
integration of accepted contributions into OSM.
4 Priority
If there is any conflict between this OSM License text and the GNU GPL
license, this text has priority.
5 Contributions
PELAB/LIU reserves the right to accept or turn down source code contributions
to OSM.
6 Limitation of the warranty
Except when mentioned otherwise in writing, OSM is supplied as is, with
no explicit or implicit warranty, including warranties of commercialization or
adaptation. You assume all risks concerning the quality or the effects of
OSM and its use. If OSM is defective, you will bear the costs of
all required services, corrections or repairs.
7 Consent
When you access and use OSM, you are presumed to be aware of and to
have accepted all the rights and obligations of the present OSM license.
This includes accepting that your open source code contributions to OSM,
if accepted into OSM by PELAB/IDA, follow the OSM licensing rules including
copyright and ownership by PELAB/IDA.
8 Binding effect
This license has the binding value of a contract.
You are not responsible for respect of the license by a third party.
9 Applicable law
The present license and its effects are subject to Swedish law and
Swedish courts.
10 Contact information
See http://www.ida.liu.se/~pelab/modelica/OpenModelica.html
*)
(**
** file: Ceval.rml
** module: Ceval
** description: Constant propagation of expressions
**
** RCS: $Id$
**
** This module handles constant propagation (or evaluation)
** When elaborating expressions, in the Static module, expressions are checked to
** find out its type. It also checks whether the expressions are constant and the relation
** ceval in this module will then evaluate the expression to a constant value, defined
** in the Values module.
**
** Input:
** Env: Environment with bindings
** Exp: Expression to check for constant evaluation
** Bool flag determines whether the current instantiation is implicit
** InteractiveSymbolTable is optional, and used in interactive mode,
** e.g. from mosh
**
** Output:
** Value: The evaluated value
** InteractiveSymbolTable: Modified symbol table
** Subscript list : Evaluates subscripts and generates constant expressions.
**)
module Ceval :
with "Env.rml"
with "Exp.rml"
with "Interactive.rml"
with "Values.rml"
datatype Msg = MSG (* Give error message *)
| NO_MSG (* Do not give error message *)
(** Constant evaluation of expressions *)
relation ceval : (Env.Env, Exp.Exp, bool (*implicit*) ,
Interactive.InteractiveSymbolTable option,
int option, (* dimensions *)
Msg)
=> (Values.Value, Interactive.InteractiveSymbolTable option)
relation ceval_list : (Env.Env, Exp.Exp list, bool (*impl*),
Interactive.InteractiveSymbolTable option,
Msg)
=> Values.Value list
relation ceval_subscripts : (Env.Env, Exp.Subscript list, int list,
bool, (*impl*)
Msg)
=> Exp.Subscript list
end
with "DAELow.rml"
with "SimCodegen.rml"
with "Static.rml"
with "Print.rml"
with "Types.rml"
with "ModUtil.rml"
with "System.rml"
with "Absyn.rml"
with "SCode.rml"
with "Inst.rml"
with "Lookup.rml"
with "Dump.rml"
with "DAE.rml"
with "Debug.rml"
with "Util.rml"
with "ClassInf.rml"
with "RTOpts.rml"
with "Parser.rml"
with "Prefix.rml"
with "Codegen.rml"
with "ClassLoader.rml"
with "Derive.rml"
(** relation: ceval_builtin
**
** Helper for ceval. Parts for builtin calls are moved here, for readability.
** See ceval for documentation.
**
**)
relation ceval_builtin : (Env.Env, Exp.Exp, bool (*impl*),
Interactive.InteractiveSymbolTable option,
int option,
Msg)
=> (Values.Value, Interactive.InteractiveSymbolTable option) =
(* Handle size separately *)
rule ceval_builtin_size(env,exp,dim,impl,st,msg) => (v,st)
-----------------------------------------
ceval_builtin (env,Exp.SIZE(exp,SOME(dim)),impl,st,_,msg) => (v,st)
rule ceval_builtin_size_matrix(env,exp,impl,st,msg) => (v,st)
-----------------------------------------
ceval_builtin (env,Exp.SIZE(exp,NONE),impl,st,_,msg) => (v,st)
rule ceval_builtin_handler id => handler &
handler(env,args,impl,st,msg) => (v,st)
-----------------------------------------
ceval_builtin (env,Exp.CALL(Absyn.IDENT(id),args,_,builtin (*as true*)),impl,st,_,msg) => (v,st)
rule ceval_list(env,expl,impl,st,msg) => vallst &
ceval_call_function (env,e,vallst,msg) => newval
-------------------------------------------------------
ceval_builtin (env, e as Exp.CALL(funcpath,expl,_,builtin as true),impl,st as NONE,_,msg) => (newval,st)
(* It's ok if ceval_builtin fails. Just means the call wasn't a builtin function *)
end
(** relation: ceval_builtin_handler
**
** This relation dispatches builtin functions and operators to a dedicated
** relation that evaluates that particular relation.
** It takes an identifier as input and returns a relation that evaluates that
** function or operator.
**)
relation ceval_builtin_handler : Absyn.Ident (* operator/function name *)
=> ((Env.Env,
Exp.Exp list,
bool,
Interactive.InteractiveSymbolTable option,
Msg)
=> (Values.Value, Interactive.InteractiveSymbolTable option)) =
(* size handled specially. see ceval_builtin *)
(* axiom ceval_builtin_handler "size" => ceval_builtin_size *)
axiom ceval_builtin_handler "floor" => ceval_builtin_floor
axiom ceval_builtin_handler "ceil" => ceval_builtin_ceil
axiom ceval_builtin_handler "abs" => ceval_builtin_abs
axiom ceval_builtin_handler "sqrt" => ceval_builtin_sqrt
axiom ceval_builtin_handler "div" => ceval_builtin_div
axiom ceval_builtin_handler "sin" => ceval_builtin_sin
axiom ceval_builtin_handler "cos" => ceval_builtin_cos
axiom ceval_builtin_handler "asin" => ceval_builtin_asin
axiom ceval_builtin_handler "acos" => ceval_builtin_acos
axiom ceval_builtin_handler "atan" => ceval_builtin_atan
axiom ceval_builtin_handler "tan" => ceval_builtin_tan
axiom ceval_builtin_handler "integer" => ceval_builtin_integer
axiom ceval_builtin_handler "mod" => ceval_builtin_mod
axiom ceval_builtin_handler "max" => ceval_builtin_max
axiom ceval_builtin_handler "min" => ceval_builtin_min
axiom ceval_builtin_handler "rem" => ceval_builtin_rem
axiom ceval_builtin_handler "diagonal" => ceval_builtin_diagonal
axiom ceval_builtin_handler "differentiate" => ceval_builtin_differentiate
axiom ceval_builtin_handler "simplify" => ceval_builtin_simplify
axiom ceval_builtin_handler "sign" => ceval_builtin_sign
axiom ceval_builtin_handler "exp" => ceval_builtin_exp
axiom ceval_builtin_handler "noEvent" => ceval_builtin_noevent
rule Debug.fprint("ceval", "No ceval_builtin_handler found for: ") &
Debug.fprintln("ceval", id)
--------------------------
ceval_builtin_handler id => fail
end
(** relation: ceval
**
** This relation is used when the value of a constant expression is
** needed. It takes an environment and an expression and calculates
** its value.
**
** The third argument indicates whether the evaluation is performed in the
** interactive environment (implicit instantiation), in which case function
** calls are evaluated.
**
** The last argument is an optional dimension.
**)
relation ceval : (Env.Env, Exp.Exp, bool (*impl*),
Interactive.InteractiveSymbolTable option,
int option,
Msg)
=> (Values.Value, Interactive.InteractiveSymbolTable option) =
axiom ceval (_,Exp.ICONST(x),_,st,_,_) => (Values.INTEGER(x),st)
axiom ceval (_,Exp.RCONST(x),_,st,_,_) => (Values.REAL(x),st)
axiom ceval (_,Exp.SCONST(x),_,st,_,_) => (Values.STRING(x),st)
axiom ceval (_,Exp.BCONST(x),_,st,_,_) => (Values.BOOL(x),st)
axiom ceval (_,Exp.END,_,st,SOME(dim),_) => (Values.INTEGER(dim), st)
rule Print.print_error_buf "# 'end' cannot be used outside array subscript\n"
--------------------------------------
ceval (_,Exp.END,_,st,NONE,MSG) => fail
axiom ceval (_,Exp.END,_,st,NONE,NO_MSG) => fail
rule ceval_ast_exp(env,exp,impl,st,msg) => exp'
--------------------------------------
ceval (env,Exp.CODE(Absyn.C_EXPRESSION(exp),_),impl,st,_,msg)
=> (Values.CODE(Absyn.C_EXPRESSION(exp')),st)
rule ceval_ast_exp(env,exp,impl,st,msg) => exp'
--------------------------------------
ceval (env,Exp.CODE(Absyn.C_EXPRESSION(exp),_),impl,st,_,msg)
=> (Values.CODE(Absyn.C_EXPRESSION(exp')),st)
rule ceval_ast_elt(env,elt,impl,st,msg) => elt'
--------------------------------------
ceval (env,Exp.CODE(Absyn.C_ELEMENT(elt),_),impl,st,_,msg)
=> (Values.CODE(Absyn.C_ELEMENT(elt')),st)
axiom ceval(env, Exp.CODE(c,_),_,st,_,_) => (Values.CODE(c),st)
rule ceval_list (env,es,impl,st,msg) => es' &
list_length es' => l
------------------------------
ceval (env,Exp.ARRAY(_,_,es),impl,st,_,msg) => (Values.ARRAY(es'),st)
rule ceval_matrixelt(env,expll,impl,msg) => elts
------------------------------
ceval (env, Exp.MATRIX(_,_,expll),impl,st,_,msg)
=> (Values.ARRAY(elts),st)
rule (* When in interactive mode, always evalutate crefs, i.e non-implicit
* mode..*)
ceval_cref(env,c,false,msg) => v
---------------------------
ceval (env,Exp.CREF(c,_),impl as false,SOME(st),_,msg)
=> (v,SOME(st))
rule ceval_cref (env,c,impl,msg) => v
---------------------------
ceval (env,Exp.CREF(c,_),impl,st,_,msg) => (v,st)
rule ceval_builtin (env, exp, impl, st, dim,msg) => (v, st')
---------------------------------------------------
ceval (env,exp,impl,st,dim,msg) => (v,st')
rule ceval (env,lh,impl,st,dim,msg) => (Values.INTEGER(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.INTEGER(rhv),st'') &
int_real(lhv) => lhvr &
int_real(rhv) => rhvr &
real_pow(lhvr,rhvr) => resr &
real_int(resr) => res
------------------------
ceval (env, Exp.BINARY(lh, Exp.POW(Exp.INT), rh),impl,st,dim,msg)
=> (Values.INTEGER(res),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.INTEGER(rhv),st'') &
int_real(rhv) => rhvr &
real_pow(lhv,rhvr) => resr
------------------------
ceval (env, Exp.BINARY(lh, Exp.POW(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(resr),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.INTEGER(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.REAL(rhv),st'') &
int_real(lhv) => lhvr &
real_pow(lhvr,rhv) => resr
------------------------
ceval (env, Exp.BINARY(lh, Exp.POW(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(resr),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.REAL(rhv),st'') &
real_pow(lhv,rhv) => resr
------------------------
ceval (env, Exp.BINARY(lh, Exp.POW(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(resr),st'')
(* FIXME: disabled calling of functions during ceval for now. Some
* functions call other functions, which must be generated together in
* order that compilation works *)
(*
axiom ceval (env, e as Exp.CALL(funcpath,expl,_,builtin as false),impl as false,st as NONE,_) => fail
*)
(* Call functions in non-interactive mode. *)
(* FIXME: functions are always generated. Put back the check
and write another rule for the false case that generates the function *)
rule ceval_list(env,expl,impl,st,msg) => vallst &
ceval_call_function (env,e,vallst,msg) => newval
-------------------------------------------------------
ceval (env, e as Exp.CALL(funcpath,expl,_,builtin as false),impl as false,st as NONE,_,msg) => (newval,st)
(* ceval (env, e as Exp.CALL(funcpath,expl,_,_),false,st as SOME(Interactive.SYMBOLTABLE(_,_,_,_,cflist)),_) => (newval,st)
*)
(* FIXME: Fix this in order to allow calling of constant-marked function
* calls. One should call the function as if we were in interactive
* mode, and put the result instead of the function call *)
(*
rule Print.print_buf "# Can't call builtin functions at compile time\n" &
Print.print_buf " expression: " & Exp.print_exp e & Print.print_buf "\n"
-------------------------------------------------------
ceval (env, e as Exp.CALL(_,_,_,builtin as true),impl as false,NONE,_) => fail
*)
rule Print.print_buf "# Can't call functions at compile time\n" &
Print.print_buf " expression: " & Exp.print_exp e & Print.print_buf "\n"
-------------------------------------------------------
ceval (env, e as Exp.CALL(_,_,_,_),impl as false,NONE,_,MSG) => fail
axiom ceval (env, e as Exp.CALL(_,_,_,_),impl as false,NONE,_,NO_MSG) => fail
rule (* Print.print_buf "implicit evaluation of function calls without symbol table, exp: " &
Exp.print_exp e & Print.print_buf "\n" *)
-------------------------------------------
ceval(env, e as Exp.CALL(_,_,_,_),impl as true,NONE,_,_) => fail
rule ceval_interactive_functions(env,e,st,msg) => (value,st)
-------------------------------------
ceval (env, e as Exp.CALL(_,_,_,_),impl as true, SOME(st),_,msg)
=> (value,SOME(st))
rule (* Call of record constructors, etc., i.e. functions that can be
constant propagated. *)
ceval_list(env,expl,impl,st,msg) => vallst &
ceval_function(env,func,vallst,impl,msg) => newval
-------------------------------------------------------
ceval (env, e as Exp.CALL(func,expl,_,_),impl as true,st as SOME(_),_,msg)
=> (newval,st)
rule (* Call externally implemented functions. *)
Static.is_function_in_cflist(cflist,func) => true &
ceval_list(env,expl,impl,st,msg) => vallst &
ModUtil.path_string2(func,"_") => funcstr &
string_append(funcstr,"_in.txt") => infilename &
string_append(funcstr,"_out.txt") => outfilename &
Values.write_to_file_as_args(vallst,infilename) &
System.execute_function(funcstr) &
System.read_values_from_file(outfilename) => newval
-------------------------------------------------------
ceval (env, e as Exp.CALL(func,expl,_,_),impl as true,st as SOME(Interactive.SYMBOLTABLE(p,_,_,_,cflist)),_,msg) => (newval,st)
(** Strings **)
rule ceval (env, lh, impl,st, NONE,msg) => (Values.STRING(lhv),_) &
ceval (env, rh, impl,st,NONE,msg) => (Values.STRING(rhv),_) &
string_append(lhv,rhv) => str
-----------------------
ceval (env, Exp.BINARY(lh, Exp.ADD(Exp.STRING), rh),impl,st,_,msg)
=> (Values.STRING(str),st)
(** Numerical *)
rule ceval (env, lh, impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env, rh, impl,st',dim,msg) => (Values.REAL(rhv),st'') &
real_add(lhv, rhv) => sum
-------------------------
ceval (env, Exp.BINARY(lh, Exp.ADD(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(sum),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.ARRAY(vlst1),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.ARRAY(vlst2),st'') &
Values.add_elementwise_arrayelt(vlst1, vlst2) => reslst
-------------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.ADD_ARR(_),rh),impl,st,dim,msg)
=> (Values.ARRAY(reslst),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.ARRAY(vlst1),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.ARRAY(vlst2),st'') &
Values.sub_elementwise_arrayelt(vlst1, vlst2) => reslst
-------------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.SUB_ARR(_),rh),impl,st,dim,msg)
=> (Values.ARRAY(reslst),st'')
rule ceval (env,lh,impl,st,dim,msg) => (sval,st') &
ceval (env,rh,impl,st',dim,msg) => (Values.ARRAY(aval),st'') &
Values.mult_scalar_arrayelt(sval,aval) => reslst
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL_SCALAR_ARRAY(_), rh),impl,st,dim,msg)
=> (Values.ARRAY(reslst),st'')
rule ceval (env,rh,impl,st,dim,msg) => (sval,st') &
ceval (env,lh,impl,st',dim,msg) => (Values.ARRAY(aval),st'') &
Values.mult_scalar_arrayelt(sval,aval) => reslst
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL_ARRAY_SCALAR(_), rh),impl,st,dim,msg)
=> (Values.ARRAY(reslst),st'')
rule ceval (env,rh,impl,st,dim,msg) => (sval,st') &
ceval (env,lh,impl,st',dim,msg) => (Values.ARRAY(aval),st'') &
Values.div_arrayelt_scalar(sval,aval) => reslst
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.DIV_ARRAY_SCALAR(_), rh),impl,st,dim,msg)
=> (Values.ARRAY(reslst),st'')
rule ceval (env,rh,impl,st,dim,msg) => (Values.ARRAY(rhvals),st') &
ceval (env,lh,impl,st',dim,msg) => (Values.ARRAY(lhvals),st'') &
Values.mult_scalar_product(rhvals,lhvals) => res
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL_SCALAR_PRODUCT(_), rh),impl,st,dim,msg)
=> (res,st'')
rule (* {{..}..{..}} * {...} *)
ceval (env,lh,impl,st,dim,msg)
=> (Values.ARRAY(lhvals as (elt1::_)),st') &
ceval (env,rh,impl,st',dim,msg)
=> (Values.ARRAY(rhvals as (elt2::_)),st'') &
Values.is_array(elt1) => true &
Values.is_array(elt2) => false &
Values.mult_scalar_product(lhvals,rhvals) => res
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL_MATRIX_PRODUCT(_), rh),impl,st,dim,msg)
=> (res,st'')
rule (* {...} * {{..}..{..}} *)
ceval (env,rh,impl,st,dim,msg)
=> (Values.ARRAY(rhvals as (elt1::_)),st') &
ceval (env,lh,impl,st',dim,msg)
=> (Values.ARRAY(lhvals as (elt2::_)),st'') &
Values.is_array(elt1) => true &
Values.is_array(elt2) => false &
Values.mult_scalar_product(lhvals,rhvals) => res
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL_MATRIX_PRODUCT(_), rh),impl,st,dim,msg)
=> (res,st'')
rule (* {{..}..{..}} * {{..}..{..}} *)
ceval (env,rh,impl,st,dim,msg)
=> (Values.ARRAY(rhvals as (elt1::_)),st') &
ceval (env,lh,impl,st',dim,msg)
=> (Values.ARRAY(lhvals as (elt2::_)),st'') &
Values.is_array(elt1) => true &
Values.is_array(elt2) => true &
Values.mult_matrix(lhvals,rhvals) => res
------------------------------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL_MATRIX_PRODUCT(_), rh),impl,st,dim,msg)
=> (Values.ARRAY(res),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.INTEGER(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.INTEGER(rhv),st'') &
int_add(lhv, rhv) => sum
------------------------
ceval (env, Exp.BINARY(lh, Exp.ADD(Exp.INT), rh),impl,st,dim,msg)
=> (Values.INTEGER(sum),st'')
(**)
rule ceval (env,lh,impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.REAL(rhv),st'') &
real_sub(lhv, rhv) => sum
-------------------------
ceval (env, Exp.BINARY(lh, Exp.SUB(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(sum),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.INTEGER(lhv),st') &
ceval (env, rh,impl,st',dim,msg) => (Values.INTEGER(rhv),st'') &
int_sub(lhv, rhv) => sum
------------------------
ceval (env, Exp.BINARY(lh, Exp.SUB(Exp.INT), rh),impl,st,dim,msg)
=> (Values.INTEGER(sum),st'')
(**)
rule ceval (env,lh,impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.REAL(rhv),st'') &
real_mul(lhv, rhv) => sum
-------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(sum),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.REAL(rhv),st'') &
real_div(lhv, rhv) => div
-------------------------
ceval (env, Exp.BINARY(lh, Exp.DIV(Exp.REAL), rh),impl,st,dim,msg)
=> (Values.REAL(div),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.REAL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.REAL(rhv),st'') &
not real_div(lhv,rhv) => _ &
Print.print_error_buf "#Error, division by zero.\n"
-------------------------
ceval (env, Exp.BINARY(lh, Exp.DIV(Exp.REAL), rh),impl,st,dim,msg)
=> fail
rule ceval (env,lh,impl,st,dim,msg) => (Values.INTEGER(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.INTEGER(rhv),st'') &
int_mul(lhv, rhv) => sum
------------------------
ceval (env, Exp.BINARY(lh, Exp.MUL(Exp.INT), rh),impl,st,dim,msg)
=> (Values.INTEGER(sum),st'')
(**)
rule ceval (env,exp,impl,st,dim,msg) => (Values.REAL(x),st') &
real_neg (x) => x'
---------------------
ceval (env, Exp.UNARY(Exp.UMINUS(Exp.REAL), exp),impl,st,dim,msg)
=> (Values.REAL(x'),st')
(* unary minus of array*)
rule ceval (env,exp,impl,st,dim,msg) => (Values.ARRAY(arr),st') &
Util.list_map(arr,Values.value_neg) => arr'
---------------------
ceval (env, Exp.UNARY(Exp.UMINUS_ARR(_), exp),impl,st,dim,msg)
=> (Values.ARRAY(arr'),st')
rule ceval (env,exp,impl,st,dim,msg) => (Values.INTEGER(x),st') &
int_neg (x) => x'
---------------------
ceval (env, Exp.UNARY(Exp.UMINUS(Exp.INT), exp),impl,st,dim,msg)
=> (Values.INTEGER(x'),st')
(**)
rule ceval (env,exp,impl,st,dim,msg) => (Values.REAL(x),st') &
real_neg (x) => x'
---------------------
ceval (env, Exp.UNARY(Exp.UPLUS(Exp.REAL), exp),impl,st,dim,msg)
=> (Values.REAL(x'),st')
rule ceval (env,exp,impl,st,dim,msg) => (Values.INTEGER(x),st') &
int_neg (x) => x'
---------------------
ceval (env, Exp.UNARY(Exp.UPLUS(Exp.INT), exp),impl,st,dim,msg)
=> (Values.INTEGER(x'),st')
(** Logical *)
rule ceval (env,lh,impl,st,dim,msg) => (Values.BOOL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.BOOL(rhv),st'') &
bool_and(lhv, rhv) => x
------------------------
ceval (env, Exp.LBINARY(lh, Exp.AND, rh),impl,st,dim,msg)
=> (Values.BOOL(x),st'')
rule ceval (env,lh,impl,st,dim,msg) => (Values.BOOL(lhv),st') &
ceval (env,rh,impl,st',dim,msg) => (Values.BOOL(rhv),st'') &
bool_or(lhv, rhv) => x
------------------------
ceval (env, Exp.LBINARY(lh, Exp.OR, rh),impl,st,dim,msg)
=> (Values.BOOL(x),st'')
rule ceval (env,e,impl,st,dim,msg) => (Values.BOOL(b),st') &
bool_not(b) => b'
-----------------
ceval (env, Exp.LUNARY(Exp.NOT, e),impl,st,dim,msg)
=> (Values.BOOL(b'),st')
(** Relations *)
rule ceval (env,lhs,impl,st,dim,msg) => (lhs',st') &
ceval (env,rhs,impl,st',dim,msg) => (rhs',st'') &
ceval_relation (lhs',relop,rhs') => v
-------------------------------------
ceval (env, Exp.RELATION(lhs,relop,rhs),impl,st,dim,msg)
=> (v, st'')
(**)
rule ceval (env,start,impl,st,dim,msg) => (Values.INTEGER(start'),st') &
ceval (env,stop,impl,st',dim,msg) => (Values.INTEGER(stop'),st'') &
ceval_range(start', 1, stop') => arr
-------------------------------------------
ceval (env, Exp.RANGE(Exp.INT,start, NONE, stop),impl,st,dim,msg)
=> (Values.ARRAY(arr),st')
rule ceval (env,start,impl,st,dim,msg) => (Values.INTEGER(start'),st') &
ceval (env,step,impl,st',dim,msg) => (Values.INTEGER(step'),st'') &
ceval (env,stop,impl,st'',dim,msg) => (Values.INTEGER(stop'),st''') &
ceval_range(start', step', stop') => arr
-------------------------------------------
ceval (env, Exp.RANGE(Exp.INT,start, SOME(step), stop),impl,st,dim,msg)
=> (Values.ARRAY(arr),st''')
rule ceval (env,start,impl,st,dim,msg) => (Values.REAL(start'),st') &
ceval (env,stop,impl,st',dim,msg) => (Values.REAL(stop'),st'') &
real_sub(stop',start') => diff &
int_real 1 => step & (* bug in rml, 1.0 => 0.0 in cygwin *)
ceval_range_real(start', step, stop') => arr
-------------------------------------------
ceval (env, Exp.RANGE(Exp.REAL,start, NONE, stop),impl,st,dim,msg)
=> (Values.ARRAY(arr),st'')
rule ceval (env,start,impl,st,dim,msg) => (Values.REAL(start'),st') &
ceval (env,step,impl,st',dim,msg) => (Values.REAL(step'),st'') &
ceval (env,stop,impl,st'',dim,msg) => (Values.REAL(stop'),st''') &
ceval_range_real(start', step', stop') => arr
-------------------------------------------
ceval (env, Exp.RANGE(Exp.REAL,start, SOME(step), stop),impl,st,dim,msg)
=> (Values.ARRAY(arr),st''')
rule ceval (env,e,impl,st,dim,msg) => (Values.INTEGER(i),st') &
int_real i => r
---------------
ceval (env, Exp.CAST(Exp.REAL,e),impl,st,dim,msg)
=> (Values.REAL(r),st')
rule ceval (env,e,impl,st,dim,msg) => (Values.ARRAY(ivals),st') &
Values.type_convert(Exp.INT,Exp.REAL,ivals) => rvals
----------------------------------------------------
ceval (env, Exp.CAST(Exp.REAL,e),impl,st,dim,msg)
=> (Values.ARRAY(rvals),st')
rule ceval (env,e,impl,st,dim,msg) => (Values.ARRAY(vallst),st') &
Values.type_convert(Exp.INT, Exp.REAL, vallst) => vallst'
--------------------------
ceval (env, Exp.CAST(Exp.REAL,e as Exp.ARRAY(Exp.INT,_,expl)),
impl,st,dim,msg)
=> (Values.ARRAY(vallst'),st')
rule ceval (env,e,impl,st,dim,msg) => (Values.ARRAY(vallst),st') &
Values.type_convert(Exp.INT,Exp.REAL,vallst) => vallst'
---------------------------------------
ceval (env, Exp.CAST(Exp.REAL,e as Exp.RANGE(Exp.INT,_,_,_)),
impl,st,dim,msg)
=> (Values.ARRAY(vallst'),st')
rule ceval (env,e,impl,st,dim,msg) => (Values.ARRAY(vallst),st') &
Values.type_convert(Exp.INT,Exp.REAL,vallst) => vallst'
---------------------------------------
ceval (env, Exp.CAST(Exp.REAL,e as Exp.MATRIX(Exp.INT,_,_)),
impl,st,dim,msg)
=> (Values.ARRAY(vallst'),st')
rule (* Ifexp, true branch *)
ceval (env,b,impl,st,dim,msg)
=> (Values.BOOL(true),st') &
ceval (env,e1,impl,st',dim,msg)
=> (v,st'')
------------------------------------
ceval (env, Exp.IFEXP(b,e1,e2),impl,st,dim,msg)
=> (v,st'')
rule (* Ifexp, false branch *)
ceval (env,b,impl,st,dim,msg) => (Values.BOOL(false),st') &
ceval (env,e2,impl,st',dim,msg) => (v,st'')
------------------------------------
ceval (env, Exp.IFEXP(b,e1,e2),impl,st,dim,msg)
=> (v,st'')
rule (* asub *)
ceval (env,e,impl,st,dim,msg) => (Values.ARRAY(vals),st') &
int_sub(indx,1) => indx' &
list_nth(vals,indx') => v
-----------------------
ceval (env, Exp.ASUB(e,indx),impl,st,dim,msg) => (v,st')
rule Print.print_buf "#-- ceval reduction\n"
---------------------------------------
ceval (env, Exp.REDUCTION(p,exp,iter,iterexp),impl,st,dim,MSG)
=> fail (* (v,st) *)
axiom ceval (env, Exp.REDUCTION(p,exp,iter,iterexp),impl,st,dim,NO_MSG)
=> fail (* (v,st) *)
(* ceval can apparently fa-il and that is ok, catched by other rules...*)
rule Debug.fprint("failtrace", "- ceval failed: ")
& Exp.print_exp_str e => str
& Debug.fprint("failtrace",str)
& Debug.fprint("failtrace", "\n")
(*& Debug.fprint("failtrace", " Env:" )
& Debug.fcall("failtrace",Env.print_env, env) *)
-----------------------------------------------------
ceval (env,e,_,_,_,MSG) => fail
end
(** relation: ceval_call_function
**
** This relation evaluates CALL expressions, i.e. function calls.
** They are currently evaluated by generating code for the function and
** then write input to file and execute the generated code. Finally, the
** result is read back from file and returned.
**)
relation ceval_call_function : (Env.Env,
Exp.Exp, (* the call expression*)
Values.Value list, (* input parameter values*)
Msg) (* Should error messages be printed. *)
=> Values.Value (* resulting value *) =
(* Call functions in non-interactive mode. *)
(* FIXME: functions are always generated. Put back the check
and write another rule for the false case that generates the function *)
rule (* Static.is_function_in_cflist(cflist,funcpath) => true & *)
ceval_generate_function(env, funcpath) &
ModUtil.path_string2(funcpath,"_") => funcstr &
string_append(funcstr,"_in.txt") => infilename &
string_append(funcstr,"_out.txt") => outfilename &
Values.write_to_file_as_args(vallst,infilename) &
System.execute_function(funcstr) &
System.read_values_from_file(outfilename) => newval
-------------------------------------------------------
ceval_call_function (env, e as Exp.CALL(funcpath,expl,_,builtin),
vallst,msg) => newval
rule Debug.fprint("failtrace", "- ceval_call_function failed: ")
& Exp.print_exp_str e => str
& Debug.fprintln("failtrace",str)
-----------------------------------------------------
ceval_call_function (env,e,_,_) => fail
end
(** relation: ceval_function
**
** For constant evaluation of functions returning a single value. For now only
** record constructors.
**)
relation ceval_function: (Env.Env, Absyn.Path, Values.Value list,
bool, (*impl*) Msg )
=> Values.Value =
(* For record constructors *)
rule Lookup.lookup_record_constructor_class(env,funcname) => (_,_) &
Lookup.lookup_class(env,funcname,false) => (c,env') &
SCode.component_names(c) => compnames &
Types.values_to_mods(vallst,compnames) => mod &
Inst.inst_class(env',mod,Prefix.NOPRE,[],c,[],impl,Inst.TOP_CALL)
=> (dae,_,_,_,_) &
DAE.dae_to_record_value(funcname,dae,impl) => value
----------------------
ceval_function(env,funcname,vallst,impl,msg) => value
rule Debug.fprint("failtrace", "ceval_function: Don't know what to do. impl was always false before:")
& Absyn.path_string funcname => s
& Debug.fprintln("failtrace", s)
----------------------------------------------------------------------
ceval_function(env,funcname,vallst,impl as true,msg) => fail
end
(** relaton: ceval_ast_exp
**
** Part of meta-programming using CODE.
**
** This relation evaluates a piece of Expression AST, replacing Eval(variable)
** with the value of the variable, given that it is of type "Expression".
**
** Example: y = Code(1 + x)
** 2 + 5 * ( x + Eval(y) ) => 2 + 5 * ( x + 1 + x )
**)
relation ceval_ast_exp: (Env.Env, Absyn.Exp,
bool (*impl*),
Interactive.InteractiveSymbolTable option,
Msg)
=> Absyn.Exp =
axiom ceval_ast_exp (_,e as Absyn.INTEGER(_),_,_,_) => e
axiom ceval_ast_exp (_,e as Absyn.REAL(_),_,_,_) => e
axiom ceval_ast_exp (_,e as Absyn.CREF(_),_,_,_) => e
axiom ceval_ast_exp (_,e as Absyn.STRING(_),_,_,_) => e
axiom ceval_ast_exp (_,e as Absyn.BOOL(_),_,_,_) => e
rule ceval_ast_exp (env,e1,impl,st,msg) => e1' &
ceval_ast_exp (env,e2,impl,st,msg) => e2'
---------------------------------
ceval_ast_exp (env, Absyn.BINARY(e1, op, e2),impl,st,msg)
=> Absyn.BINARY(e1',op,e2')
rule ceval_ast_exp (env,e,impl,st,msg) => e'
---------------------------------
ceval_ast_exp (env, Absyn.UNARY(op, e),impl,st,msg)
=> Absyn.UNARY(op,e')
rule ceval_ast_exp (env,e1,impl,st,msg) => e1' &
ceval_ast_exp (env,e2,impl,st,msg) => e2'
---------------------------------
ceval_ast_exp (env, Absyn.LBINARY(e1, op, e2),impl,st,msg)
=> Absyn.LBINARY(e1',op,e2')
rule ceval_ast_exp (env,e,impl,st,msg) => e'
---------------------------------
ceval_ast_exp (env, Absyn.LUNARY(op, e),impl,st,msg)
=> Absyn.LUNARY(op,e')
rule ceval_ast_exp (env,e1,impl,st,msg) => e1' &
ceval_ast_exp (env,e2,impl,st,msg) => e2'
---------------------------------
ceval_ast_exp (env, Absyn.RELATION(e1, op, e2),impl,st,msg)
=> Absyn.RELATION(e1',op,e2')
rule ceval_ast_exp(env,cond,impl,st,msg)=> cond' &
ceval_ast_exp(env,then,impl,st,msg)=> then' &
ceval_ast_exp(env,else,impl,st,msg)=> else' &
ceval_ast_expexp_list(env,nest,impl,st,msg) => nest'
-----------------------------------------------
ceval_ast_exp (env, Absyn.IFEXP(cond,then,else,nest),impl,st,msg)
=> Absyn.IFEXP(cond',then',else',nest')
rule Static.elab_exp(env,e,impl,st) => (e',_,_) &
ceval(env,e',impl,st,NONE,msg)
=> (Values.CODE(Absyn.C_EXPRESSION(exp)),_)
----------------------------------
ceval_ast_exp (env,
Absyn.CALL(Absyn.CREF_IDENT("Eval",[]),
Absyn.FUNCTIONARGS([e],[])),impl,st
,msg)
=> exp
axiom ceval_ast_exp(env,e as Absyn.CALL(cr,fa),_,_,msg) => e
rule ceval_ast_exp_list(env,expl,impl,st,msg) => expl'
---------------------------------------------
ceval_ast_exp(env,Absyn.ARRAY(expl),impl,st,msg)
=> Absyn.ARRAY(expl')
rule ceval_ast_exp_list_list(env,expl,impl,st,msg) => expl'
--------------------------------------------------
ceval_ast_exp(env,Absyn.MATRIX(expl),impl,st,msg)
=> Absyn.MATRIX(expl')
rule ceval_ast_exp(env,e1,impl,st,msg) => e1' &
ceval_ast_exp(env,e2,impl,st,msg) => e2' &
ceval_ast_exp(env,e3,impl,st,msg) => e3'
------------------------------------
ceval_ast_exp(env,Absyn.RANGE(e1,SOME(e2),e3),impl,st,msg)
=> Absyn.RANGE(e1',SOME(e2'),e3')
rule ceval_ast_exp(env,e1,impl,st,msg) => e1' &
ceval_ast_exp(env,e3,impl,st,msg) => e3'
------------------------------------
ceval_ast_exp(env,Absyn.RANGE(e1,NONE,e3),impl,st,msg)
=> Absyn.RANGE(e1',NONE,e3')
rule ceval_ast_exp_list(env,expl,impl,st,msg) => expl'
---------------------------------------------
ceval_ast_exp(env,Absyn.TUPLE(expl),impl,st,msg)
=> Absyn.TUPLE(expl')
axiom ceval_ast_exp(env,Absyn.END,_,_,msg) => Absyn.END
axiom ceval_ast_exp(env,e as Absyn.CODE(_),_,_,msg) => e
end
(** relation: ceval_ast_exp_list
**
** List version of ceval_ast_exp
**)
relation ceval_ast_exp_list: (Env.Env, Absyn.Exp list,
bool (*impl*) , Interactive.InteractiveSymbolTable option,
Msg)
=> (Absyn.Exp list) =
axiom ceval_ast_exp_list (env, [],_,_,msg) => []
rule ceval_ast_exp(env,e,impl,st,msg) => e' &
ceval_ast_exp_list(env,es,impl,st,msg) => res
-----------------------------------------
ceval_ast_exp_list(env,e::es,impl,st,msg)
=> e::res
end
(** relation: ceval_ast_exp_list_list
**
**)
relation ceval_ast_exp_list_list: (Env.Env, Absyn.Exp list list,
bool (*impl*),
Interactive.InteractiveSymbolTable option,
Msg)
=> (Absyn.Exp list list) =
axiom ceval_ast_exp_list_list(env, [], _,_,msg) => []
rule ceval_ast_exp_list(env,e,impl,st,msg) => e' &
ceval_ast_exp_list_list(env,es,impl,st,msg) => res
----------------------------------------------
ceval_ast_exp_list_list(env,e::es,impl,st,msg)
=> e::res
end
(** relation: ceval_ast_expexp_list
**
** For IFEXP
**)
relation ceval_ast_expexp_list: (Env.Env, (Absyn.Exp*Absyn.Exp) list,
bool,
Interactive.InteractiveSymbolTable option,
Msg)
=> (Absyn.Exp*Absyn.Exp) list =
axiom ceval_ast_expexp_list(_,[],_,_,msg) => []
rule ceval_ast_exp(env,e1,impl,st,msg)=> e1' &
ceval_ast_exp(env,e2,impl,st,msg)=> e2' &
ceval_ast_expexp_list(env,xs,impl,st,msg) => res
-------------------------------------
ceval_ast_expexp_list(env,(e1,e2)::xs,impl,st,msg)
=> ((e1',e2')::res)
end
(** relation: ceval_ast_elt
**
** Evaluates an ast constructor for Element nodes, e.g.
** Code(parameter Real x=1;)
**)
relation ceval_ast_elt: (Env.Env, Absyn.Element,
bool (*impl*),
Interactive.InteractiveSymbolTable option,
Msg)
=> (Absyn.Element) =
rule ceval_ast_citems(env,citems,impl,st,msg) => citems'