/
BackendDAECreate.mo
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BackendDAECreate.mo
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/*
* This file is part of OpenModelica.
*
* Copyright (c) 1998-CurrentYear, Linköping University,
* Department of Computer and Information Science,
* SE-58183 Linköping, Sweden.
*
* All rights reserved.
*
* THIS PROGRAM IS PROVIDED UNDER THE TERMS OF GPL VERSION 3
* AND THIS OSMC PUBLIC LICENSE (OSMC-PL).
* ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES RECIPIENT'S
* ACCEPTANCE OF THE OSMC PUBLIC LICENSE.
*
* The OpenModelica software and the Open Source Modelica
* Consortium (OSMC) Public License (OSMC-PL) are obtained
* from Linköping University, either from the above address,
* from the URLs: http://www.ida.liu.se/projects/OpenModelica or
* http://www.openmodelica.org, and in the OpenModelica distribution.
* GNU version 3 is obtained from: http://www.gnu.org/copyleft/gpl.html.
*
* This program is distributed WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH
* IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS
* OF OSMC-PL.
*
* See the full OSMC Public License conditions for more details.
*
*/
package BackendDAECreate
" file: BackendDAECreate.mo
package: BackendDAECreate
description: This file contains all functions for transforming the DAE structure
to the BackendDAE.
RCS: $Id$
"
public import Absyn;
public import BackendDAE;
public import DAE;
protected import Algorithm;
protected import BackendDAEUtil;
protected import BackendDAEOptimize;
protected import BackendEquation;
protected import BackendVariable;
protected import ComponentReference;
protected import ClassInf;
protected import DAEDump;
protected import DAEUtil;
protected import Debug;
protected import Derive;
protected import Error;
protected import Expression;
protected import ExpressionSimplify;
protected import ExpressionDump;
protected import Inline;
protected import OptManager;
protected import RTOpts;
protected import SCode;
protected import Util;
public function lower
"function: lower
This function translates a DAE, which is the result from instantiating a
class, into a more precise form, called BackendDAE.BackendDAE defined in this module.
The BackendDAE.BackendDAE representation splits the DAE into equations and variables
and further divides variables into known and unknown variables and the
equations into simple and nonsimple equations.
The variables are inserted into a hash table. This gives a lookup cost of
O(1) for finding a variable. The equations are put in an expandable
array. Where adding a new equation can be done in O(1) time if space
is available.
inputs: daeList: DAE.DAElist, simplify: bool)
outputs: BackendDAE.BackendDAE"
input DAE.DAElist lst;
input DAE.FunctionTree functionTree;
input Boolean addDummyDerivativeIfNeeded;
input Boolean simplify;
// input Boolean removeTrivEqs "temporal input, for legacy purposes; doesn't add trivial equations to removed equations";
output BackendDAE.BackendDAE outBackendDAE;
algorithm
outBackendDAE := match(lst, functionTree, addDummyDerivativeIfNeeded, simplify)
local
BackendDAE.BinTree s;
BackendDAE.Variables vars,knvars,vars_1,extVars;
BackendDAE.AliasVariables aliasVars "hash table with alias vars' replacements (a=b or a=-b)";
list<BackendDAE.Equation> eqns,reqns,ieqns,algeqns,algeqns1,ialgeqns,ialgeqns1,multidimeqns,imultidimeqns,eqns_1;
list<BackendDAE.MultiDimEquation> aeqns,aeqns1,iaeqns;
list<DAE.Algorithm> algs,algs_1,ialgs;
list<BackendDAE.WhenClause> whenclauses,whenclauses_1;
list<BackendDAE.ZeroCrossing> zero_crossings,zero_crossings1;
BackendDAE.EquationArray eqnarr,reqnarr,ieqnarr;
array<BackendDAE.MultiDimEquation> arr_md_eqns;
array<DAE.Algorithm> algarr;
BackendDAE.ExternalObjectClasses extObjCls;
Boolean daeContainsNoStates, shouldAddDummyDerivative;
BackendDAE.EventInfo einfo;
DAE.FunctionTree funcs;
list<DAE.Element> elems;
case(lst, functionTree, addDummyDerivativeIfNeeded, true) // simplify by default
equation
(DAE.DAE(elems),functionTree) = processDelayExpressions(lst,functionTree);
s = states(elems, BackendDAE.emptyBintree);
vars = BackendDAEUtil.emptyVars();
knvars = BackendDAEUtil.emptyVars();
extVars = BackendDAEUtil.emptyVars();
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,s) = lower2(listReverse(elems), functionTree, vars, knvars, extVars, {}, {}, {}, {}, {}, {}, {}, {}, {}, s);
daeContainsNoStates = hasNoStates(s); // check if the DAE has states
// adrpo: add the dummy derivative state ONLY IF the DAE contains
// no states AND ONLY if addDummyDerivative is set to true!
shouldAddDummyDerivative = boolAnd(addDummyDerivativeIfNeeded, daeContainsNoStates);
(vars,eqns) = addDummyState(vars, eqns, shouldAddDummyDerivative);
whenclauses_1 = listReverse(whenclauses);
(algeqns,algeqns1,ialgeqns) = lowerAlgorithms(vars, algs, ialgs);
(multidimeqns,imultidimeqns) = lowerMultidimeqns(vars, aeqns, iaeqns);
eqns = listAppend(algeqns, eqns);
eqns = listAppend(multidimeqns, eqns);
ieqns = listAppend(ialgeqns, ieqns);
ieqns = listAppend(imultidimeqns, ieqns);
aeqns = listAppend(aeqns,iaeqns);
algs = listAppend(algs,ialgs);
reqns = listAppend(algeqns1, reqns);
(vars,knvars,eqns,reqns,ieqns,aeqns1,algs_1,aliasVars) = BackendDAEOptimize.removeSimpleEquations(vars, knvars, eqns, reqns, ieqns, aeqns, algs, s);
vars_1 = detectImplicitDiscrete(vars, eqns);
vars_1 = detectImplicitDiscreteAlgs(vars_1,knvars, algs_1);
eqns_1 = sortEqn(eqns);
(eqns_1,ieqns,aeqns1,algs,vars_1) = expandDerOperator(vars_1,eqns_1,ieqns,aeqns1,algs_1,functionTree);
(zero_crossings) = findZeroCrossings(vars_1,knvars,eqns_1,aeqns1,whenclauses_1,algs);
eqnarr = BackendDAEUtil.listEquation(eqns_1);
reqnarr = BackendDAEUtil.listEquation(reqns);
ieqnarr = BackendDAEUtil.listEquation(ieqns);
arr_md_eqns = listArray(aeqns1);
algarr = listArray(algs);
einfo = Inline.inlineEventInfo(BackendDAE.EVENT_INFO(whenclauses_1,zero_crossings),(SOME(functionTree),{DAE.NORM_INLINE()}));
BackendDAEUtil.checkBackendDAEWithErrorMsg(BackendDAE.DAE(vars_1,knvars,extVars,aliasVars,eqnarr,reqnarr,ieqnarr,arr_md_eqns,algarr,einfo,extObjCls));
then BackendDAE.DAE(vars_1,knvars,extVars,aliasVars,eqnarr,reqnarr,ieqnarr,arr_md_eqns,algarr,einfo,extObjCls);
case(lst, functionTree, addDummyDerivativeIfNeeded, false) // do not simplify
equation
(DAE.DAE(elems),functionTree) = processDelayExpressions(lst,functionTree);
s = states(elems, BackendDAE.emptyBintree);
vars = BackendDAEUtil.emptyVars();
knvars = BackendDAEUtil.emptyVars();
extVars = BackendDAEUtil.emptyVars();
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,s) = lower2(listReverse(elems), functionTree, vars, knvars, extVars, {}, {}, {}, {}, {}, {}, {}, {}, {}, s);
daeContainsNoStates = hasNoStates(s); // check if the DAE has states
// adrpo: add the dummy derivative state ONLY IF the DAE contains
// no states AND ONLY if addDummyDerivative is set to true!
shouldAddDummyDerivative = boolAnd(addDummyDerivativeIfNeeded, daeContainsNoStates);
(vars,eqns) = addDummyState(vars, eqns, shouldAddDummyDerivative);
whenclauses_1 = listReverse(whenclauses);
(algeqns,algeqns1,ialgeqns) = lowerAlgorithms(vars, algs, ialgs);
(multidimeqns,imultidimeqns) = lowerMultidimeqns(vars, aeqns, iaeqns);
eqns = listAppend(algeqns, eqns);
eqns = listAppend(multidimeqns, eqns);
ieqns = listAppend(ialgeqns, ieqns);
ieqns = listAppend(imultidimeqns, ieqns);
aeqns = listAppend(aeqns,iaeqns);
algs = listAppend(algs,ialgs);
reqns = listAppend(algeqns1, reqns);
// no simplify (vars,knvars,eqns,reqns,ieqns,aeqns1,algs_1,aliasVars) = BackendDAEOptimize.removeSimpleEquations(vars, knvars, eqns, reqns, ieqns, aeqns, algs, s);
aliasVars = BackendDAEUtil.emptyAliasVariables();
vars_1 = detectImplicitDiscrete(vars, eqns);
vars_1 = detectImplicitDiscreteAlgs(vars_1,knvars, algs);
eqns_1 = sortEqn(eqns);
// no simplify (eqns_1,ieqns,aeqns1,algs,vars_1) = expandDerOperator(vars_1,eqns_1,ieqns,aeqns1,algs_1,functionTree);
(zero_crossings) = findZeroCrossings(vars_1,knvars,eqns_1,aeqns,whenclauses_1,algs);
eqnarr = BackendDAEUtil.listEquation(eqns_1);
reqnarr = BackendDAEUtil.listEquation(reqns);
ieqnarr = BackendDAEUtil.listEquation(ieqns);
arr_md_eqns = listArray(aeqns);
algarr = listArray(algs);
einfo = Inline.inlineEventInfo(BackendDAE.EVENT_INFO(whenclauses_1,zero_crossings),(SOME(functionTree),{DAE.NORM_INLINE()}));
BackendDAEUtil.checkBackendDAEWithErrorMsg(BackendDAE.DAE(vars_1,knvars,extVars,aliasVars,eqnarr,reqnarr,ieqnarr,arr_md_eqns,algarr,einfo,extObjCls));
then BackendDAE.DAE(vars_1,knvars,extVars,aliasVars,eqnarr,reqnarr,ieqnarr,arr_md_eqns,algarr,einfo,extObjCls);
end match;
end lower;
protected function lower2
"Helper function to lower."
input list<DAE.Element> inElements "input is in reverse order. this is faster than reversing all accumulators at the end";
input DAE.FunctionTree functionTree;
input BackendDAE.Variables inVariables;
input BackendDAE.Variables inKnownVariables;
input BackendDAE.Variables inExternalVariables;
input list<BackendDAE.Equation> inEquationLst3;
input list<BackendDAE.Equation> inEquationLst4;
input list<BackendDAE.Equation> inEquationLst5;
input list<BackendDAE.MultiDimEquation> inMultiDimEquationLst6;
input list<BackendDAE.MultiDimEquation> inMultiDimEquationLst7;
input list<DAE.Algorithm> inAlgorithmAlgorithmLst8;
input list<DAE.Algorithm> inAlgorithmAlgorithmLst9;
input list<BackendDAE.WhenClause> inWhenClauseLst10;
input BackendDAE.ExternalObjectClasses inExtObjClasses;
input BackendDAE.BinTree inStatesBinTree;
output BackendDAE.Variables outVariables;
output BackendDAE.Variables outKnownVariables;
output BackendDAE.Variables outExternalVariables;
output list<BackendDAE.Equation> outEquationLst3;
output list<BackendDAE.Equation> outEquationLst4;
output list<BackendDAE.Equation> outEquationLst5;
output list<BackendDAE.MultiDimEquation> outMultiDimEquationLst6;
output list<BackendDAE.MultiDimEquation> outMultiDimEquationLst7;
output list<DAE.Algorithm> outAlgorithmAlgorithmLst8;
output list<DAE.Algorithm> outAlgorithmAlgorithmLst9;
output list<BackendDAE.WhenClause> outWhenClauseLst10;
output BackendDAE.ExternalObjectClasses outExtObjClasses;
output BackendDAE.BinTree outStatesBinTree;
algorithm
(outVariables,outKnownVariables,outExternalVariables,outEquationLst3,outEquationLst4,outEquationLst5,
outMultiDimEquationLst6,outMultiDimEquationLst7,outAlgorithmAlgorithmLst8,outAlgorithmAlgorithmLst9,outWhenClauseLst10,outExtObjClasses,outStatesBinTree):=
match (inElements,functionTree,inVariables,inKnownVariables,inExternalVariables,inEquationLst3,inEquationLst4,inEquationLst5,
inMultiDimEquationLst6,inMultiDimEquationLst7,inAlgorithmAlgorithmLst8,inAlgorithmAlgorithmLst9,inWhenClauseLst10,inExtObjClasses,inStatesBinTree)
local
BackendDAE.Variables v1,v2,v3,vars,knvars,extVars,extVars1,extVars2,vars_1,knvars_1,vars1,vars2,knvars1,knvars2,kv;
list<BackendDAE.WhenClause> whenclauses,whenclauses_1,whenclauses_2;
list<BackendDAE.Equation> eqns,reqns,ieqns,eqns1,eqns2,reqns1,ieqns1,reqns2,ieqns2,re,ie,eqsComplex;
list<BackendDAE.MultiDimEquation> aeqns,aeqns1,aeqns2,ae,iaeqns,iaeqns1,iaeqns2,iae;
list<DAE.Algorithm> algs,algs1,algs2,al,ialgs,ialgs1,ialgs2;
BackendDAE.ExternalObjectClasses extObjCls,extObjCls1,extObjCls2;
BackendDAE.ExternalObjectClass extObjCl;
DAE.Element daeEl;
list<DAE.Element> daeLstRest;
BackendDAE.BinTree states;
BackendDAE.Equation backendEq2;
DAE.Exp c;
list<BackendDAE.Value> ds;
BackendDAE.Value count,count_1;
DAE.Algorithm a,a1,a2;
DAE.DAElist dae;
DAE.ExpType ty;
DAE.ComponentRef cr;
Absyn.InnerOuter io;
DAE.ElementSource source "the element source";
DAE.FunctionTree funcs;
list<DAE.Element> daeElts;
DAE.ElementSource eq_source;
DAE.Exp e_21;
list<DAE.Exp> ea2;
list<tuple<DAE.Exp,DAE.Exp>> ealst;
BackendDAE.MultiDimEquation backendMultiDimEq;
list<Option<BackendDAE.Equation>> opteqlst;
BackendDAE.Var backendVar,backendVar1,backendVar2;
DAE.Exp cond,msg;
DAE.Algorithm alg;
list<BackendDAE.Equation> backendEqLst;
Absyn.Path func_name;
list<DAE.Exp> args;
DAE.Statement s;
Boolean b;
String str;
DAE.Element ddl;
String s3;
DAE.ExpType expTy;
// the empty case
case ({},functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states)
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states);
case (daeEl::daeLstRest,functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states)
equation
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states) =
lower3(daeEl,functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states);
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states) =
lower2(daeLstRest,functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states);
end match;
end lower2;
protected function lower3
"Helper function to lower."
input DAE.Element inElement;
input DAE.FunctionTree functionTree;
input BackendDAE.Variables inVariables;
input BackendDAE.Variables inKnownVariables;
input BackendDAE.Variables inExternalVariables;
input list<BackendDAE.Equation> inEquationLst3;
input list<BackendDAE.Equation> inEquationLst4;
input list<BackendDAE.Equation> inEquationLst5;
input list<BackendDAE.MultiDimEquation> inMultiDimEquationLst6;
input list<BackendDAE.MultiDimEquation> inMultiDimEquationLst7;
input list<DAE.Algorithm> inAlgorithmAlgorithmLst8;
input list<DAE.Algorithm> inAlgorithmAlgorithmLst9;
input list<BackendDAE.WhenClause> inWhenClauseLst10;
input BackendDAE.ExternalObjectClasses inExtObjClasses;
input BackendDAE.BinTree inStatesBinTree;
output BackendDAE.Variables outVariables;
output BackendDAE.Variables outKnownVariables;
output BackendDAE.Variables outExternalVariables;
output list<BackendDAE.Equation> outEquationLst3;
output list<BackendDAE.Equation> outEquationLst4;
output list<BackendDAE.Equation> outEquationLst5;
output list<BackendDAE.MultiDimEquation> outMultiDimEquationLst6;
output list<BackendDAE.MultiDimEquation> outMultiDimEquationLst7;
output list<DAE.Algorithm> outAlgorithmAlgorithmLst8;
output list<DAE.Algorithm> outAlgorithmAlgorithmLst9;
output list<BackendDAE.WhenClause> outWhenClauseLst10;
output BackendDAE.ExternalObjectClasses outExtObjClasses;
output BackendDAE.BinTree outStatesBinTree;
algorithm
(outVariables,outKnownVariables,outExternalVariables,outEquationLst3,outEquationLst4,outEquationLst5,
outMultiDimEquationLst6,outMultiDimEquationLst7,outAlgorithmAlgorithmLst8,outAlgorithmAlgorithmLst9,outWhenClauseLst10,outExtObjClasses,outStatesBinTree):=
matchcontinue (inElement,functionTree,inVariables,inKnownVariables,inExternalVariables,inEquationLst3,inEquationLst4,inEquationLst5,
inMultiDimEquationLst6,inMultiDimEquationLst7,inAlgorithmAlgorithmLst8,inAlgorithmAlgorithmLst9,inWhenClauseLst10,inExtObjClasses,inStatesBinTree)
local
BackendDAE.Variables vars,knvars,extVars,extVars1,extVars2,vars_1,knvars_1,vars1,vars2,knvars1,knvars2,kv;
list<BackendDAE.WhenClause> whenclauses,whenclauses_1,whenclauses_2;
list<BackendDAE.Equation> eqns,reqns,ieqns,eqns1,eqns2,reqns1,ieqns1,reqns2,ieqns2,re,ie,eqsComplex;
list<BackendDAE.MultiDimEquation> aeqns,aeqns1,aeqns2,ae,iaeqns,iaeqns1,iaeqns2,iae;
list<DAE.Algorithm> algs,algs1,algs2,al,ialgs,ialgs1,ialgs2;
BackendDAE.ExternalObjectClasses extObjCls,extObjCls1,extObjCls2;
BackendDAE.ExternalObjectClass extObjCl;
DAE.Element daeEl;
list<DAE.Element> daeLstRest;
BackendDAE.BinTree states;
BackendDAE.Equation backendEq1, backendEq2;
DAE.Exp e1,e2,c;
list<BackendDAE.Value> ds;
BackendDAE.Value count,count_1;
DAE.Algorithm a,a1,a2;
DAE.DAElist dae;
DAE.ExpType ty;
DAE.ComponentRef cr;
Absyn.InnerOuter io;
DAE.ElementSource source "the element source";
DAE.FunctionTree funcs;
list<DAE.Element> daeElts;
Absyn.Info info;
Absyn.Path path;
DAE.Function constr,destr;
list<DAE.Exp> targets;
list<DAE.Exp> sources;
DAE.ElementSource eq_source;
DAE.Exp e_11,e_21;
list<DAE.Exp> ea1,ea2;
list<tuple<DAE.Exp,DAE.Exp>> ealst;
BackendDAE.MultiDimEquation backendMultiDimEq;
list<Option<BackendDAE.Equation>> opteqlst;
BackendDAE.Var backendVar,backendVar1,backendVar2;
DAE.Exp cond,msg;
DAE.Algorithm alg;
list<BackendDAE.Equation> backendEqLst;
Absyn.Path func_name;
list<DAE.Exp> args;
DAE.Statement s;
Boolean b1, b2, b;
String str;
DAE.Element ddl;
String s3;
DAE.ExpType expTy;
// adrpo: should we ignore OUTER vars?!
//case (((v as DAE.VAR(innerOuter=io)) :: xs),states,vars,knvars,extVars,whenclauses)
// equation
// DAEUtil.isOuterVar(v);
// (vars,knvars,extVars,eqns,reqns,ieqns,aeqns,algs,whenclauses_1,extObjCls) =
// lower2(xs, states, vars, knvars, extVars, whenclauses);
// then
// (vars,knvars,extVars,eqns,reqns,ieqns,aeqns,algs,whenclauses_1,extObjCls);
// external object variables
case (daeEl as DAE.VAR(componentRef = _),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendVar1 = lowerExtObjVar(daeEl);
SOME(backendVar2) = Inline.inlineVarOpt(SOME(backendVar1),(SOME(functionTree),{DAE.NORM_INLINE()}));
extVars = BackendVariable.addVar(backendVar2, extVars);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// class for external object
case (DAE.EXTOBJECTCLASS(path,constr,destr,source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
{extObjCl} = Inline.inlineExtObjClasses({BackendDAE.EXTOBJCLASS(path,constr,destr,source)},(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCl::extObjCls,states);
// variables: states and algebraic variables with binding equation
case (daeEl as DAE.VAR(componentRef = cr, source = source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
// adrpo 2009-09-07 - according to MathCore
// add the binding as an equation and remove the binding from variable!
true = isStateOrAlgvar(daeEl);
(backendVar1,SOME(e1),states) = lowerVar(daeEl, states);
SOME(backendVar2) = Inline.inlineVarOpt(SOME(backendVar1),(SOME(functionTree),{DAE.NORM_INLINE()}));
e2 = Inline.inlineExp(e1,(SOME(functionTree),{DAE.NORM_INLINE()}));
vars = BackendVariable.addVar(backendVar2, vars);
e1 = Expression.crefExp(cr);
then
(vars,knvars,extVars,BackendDAE.EQUATION(e1, e2, source)::eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// variables: states and algebraic variables with NO binding equation
case (daeEl as DAE.VAR(componentRef = cr, source = source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
true = isStateOrAlgvar(daeEl);
(backendVar1,NONE(),states) = lowerVar(daeEl, states);
SOME(backendVar2) = Inline.inlineVarOpt(SOME(backendVar1),(SOME(functionTree),{DAE.NORM_INLINE()}));
vars = BackendVariable.addVar(backendVar2, vars);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// known variables: parameters and constants
case (daeEl as DAE.VAR(componentRef = _),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendVar1 = lowerKnownVar(daeEl) "in previous rule, lower_var failed." ;
SOME(backendVar2) = Inline.inlineVarOpt(SOME(backendVar1),(SOME(functionTree),{DAE.NORM_INLINE()}));
knvars = BackendVariable.addVar(backendVar2, knvars);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// tuple equations are rewritten to algorihm tuple assign.
case (daeEl as DAE.EQUATION(exp = e1,scalar = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
a = lowerTupleEquation(daeEl);
a1 = Inline.inlineAlgorithm(a,(SOME(functionTree),{DAE.NORM_INLINE()}));
a2 = extendAlgorithm(a1,SOME(functionTree));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,a2::algs,ialgs,whenclauses_1,extObjCls,states);
// tuple-tuple assignments are split into one equation for each tuple
// element, i.e. (i1, i2) = (4, 6) => i1 = 4; i2 = 6;
case (DAE.EQUATION(DAE.TUPLE(targets), DAE.TUPLE(sources), source = eq_source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
eqns2 = lowerTupleAssignment(targets, sources, eq_source, functionTree);
eqns = listAppend(eqns2, eqns);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// scalar equations
case (daeEl as DAE.EQUATION(exp = e1,scalar = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendEq1 = lowerEqn(daeEl);
SOME(backendEq2) = Inline.inlineEqOpt(SOME(backendEq1),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,backendEq2 :: eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// effort variable equality equations
case (daeEl as DAE.EQUEQUATION(cr1 = _),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendEq1 = lowerEqn(daeEl);
SOME(backendEq2) = Inline.inlineEqOpt(SOME(backendEq1),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,backendEq2 :: eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// a solved equation
case (daeEl as DAE.DEFINE(componentRef = _),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendEq1 = lowerEqn(daeEl);
SOME(backendEq2) = Inline.inlineEqOpt(SOME(backendEq1),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,backendEq2 :: eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// complex equations
case (daeEl as DAE.COMPLEX_EQUATION(lhs = e1,rhs = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
(eqsComplex,aeqns1) = lowerComplexEqn(daeEl, functionTree);
eqns = listAppend(eqsComplex, eqns);
aeqns2 = listAppend(aeqns, aeqns1);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns2,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// complex initial equations
case (daeEl as DAE.INITIAL_COMPLEX_EQUATION(lhs = e1,rhs = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
(eqsComplex,iaeqns1) = lowerComplexEqn(daeEl, functionTree);
ieqns = listAppend(eqsComplex, ieqns);
iaeqns2 = listAppend(iaeqns, iaeqns1);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns2,algs,ialgs,whenclauses_1,extObjCls,states);
// array equations
case (daeEl as DAE.ARRAY_EQUATION(dimension = _,exp = e1,array = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
BackendDAE.MULTIDIM_EQUATION(left=e_11 as DAE.ARRAY(scalar=true,array=ea1),
right=e_21 as DAE.ARRAY(scalar=true,array=ea2),source=source)
= lowerArrEqn(daeEl,functionTree);
ealst = Util.listThreadTuple(ea1,ea2);
re = Util.listMap1(ealst,BackendEquation.generateEQUATION,source);
eqns = listAppend(re, eqns);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// array equations
case (daeEl as DAE.ARRAY_EQUATION(dimension = _,exp = e1,array = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendMultiDimEq = lowerArrEqn(daeEl,functionTree);
then
(vars,knvars,extVars,eqns,reqns,ieqns,backendMultiDimEq :: aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// initial array equations
case (daeEl as DAE.INITIAL_ARRAY_EQUATION(dimension = _,exp = e1,array = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
BackendDAE.MULTIDIM_EQUATION(left=e_11 as DAE.ARRAY(scalar=true,array=ea1),
right=e_21 as DAE.ARRAY(scalar=true,array=ea2),source=source)
= lowerArrEqn(daeEl,functionTree);
ealst = Util.listThreadTuple(ea1,ea2);
re = Util.listMap1(ealst,BackendEquation.generateEQUATION,source);
ieqns = listAppend(re, ieqns);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// initial array equations
case (daeEl as DAE.INITIAL_ARRAY_EQUATION(dimension = _, exp = e1, array = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendMultiDimEq = lowerArrEqn(daeEl,functionTree);
then
(vars, knvars, extVars, eqns, reqns, ieqns, aeqns,backendMultiDimEq :: iaeqns, algs,ialgs, whenclauses_1, extObjCls,states);
// when equations
case (daeEl as DAE.WHEN_EQUATION(condition = c),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
count = listLength(whenclauses_1);
(eqns2,count_1,whenclauses_2) = lowerWhenEqn(daeEl, count, whenclauses_1);
opteqlst = Util.listMap(eqns2,Util.makeOption);
opteqlst = Util.listMap1(opteqlst,Inline.inlineEqOpt,(SOME(functionTree),{DAE.NORM_INLINE()}));
eqns2 = Util.listMap(opteqlst,Util.getOption);
eqns = listAppend(eqns, eqns2);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_2,extObjCls,states);
// initial equations
case (daeEl as DAE.INITIALEQUATION(exp1 = e1,exp2 = e2),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
backendEq1 = lowerEqn(daeEl);
SOME(backendEq2) = Inline.inlineEqOpt(SOME(backendEq1),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,eqns,reqns,backendEq2 :: ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// algorithm
case (DAE.ALGORITHM(algorithm_ = a),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
a1 = Inline.inlineAlgorithm(a,(SOME(functionTree),{DAE.NORM_INLINE()}));
a2 = extendAlgorithm(a1,SOME(functionTree));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,a1 :: algs,ialgs,whenclauses_1,extObjCls,states);
// flat class / COMP
case (DAE.COMP(dAElist = daeElts),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states)
equation
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states) = lower2(listReverse(daeElts),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states);
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses,extObjCls,states);
// assert in equation section is converted to ALGORITHM
case (DAE.ASSERT(cond,msg,source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
checkAssertCondition(cond,msg);
a = Inline.inlineAlgorithm(DAE.ALGORITHM_STMTS({DAE.STMT_ASSERT(cond,msg,source)}),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,a::algs,ialgs,whenclauses_1,extObjCls,states);
// terminate in equation section is converted to ALGORITHM
case (DAE.TERMINATE(message = msg, source = source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
a = Inline.inlineAlgorithm(DAE.ALGORITHM_STMTS({DAE.STMT_TERMINATE(msg,source)}),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,a::algs,ialgs,whenclauses_1,extObjCls,states);
case (DAE.NORETCALL(functionName = func_name, functionArgs = args, source = source),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
// make sure is not constrain as we don't support it, see below.
b1 = boolNot(Util.isEqual(func_name, Absyn.IDENT("constrain")));
// constrain is fine when we do check model!
b2 = OptManager.getOption("checkModel");
true = boolOr(b1, b2);
s = DAE.STMT_NORETCALL(DAE.CALL(func_name, args, false, false, DAE.ET_NORETCALL(), DAE.NORM_INLINE()),source);
a = Inline.inlineAlgorithm(DAE.ALGORITHM_STMTS({s}),(SOME(functionTree),{DAE.NORM_INLINE()}));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,a::algs,ialgs,whenclauses_1,extObjCls,states);
// initial algorithm
case (daeEl as DAE.INITIALALGORITHM(algorithm_ = a, source = DAE.SOURCE(info=info)),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
a1 = Inline.inlineAlgorithm(a,(SOME(functionTree),{DAE.NORM_INLINE()}));
a2 = extendAlgorithm(a1,SOME(functionTree));
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,a2 ::ialgs,whenclauses_1,extObjCls,states);
// when running checkModel ignore some of the unsupported features as we only want to see nr eqs/vars
// if equation that cannot be translated to if expression but have initial() as condition
case (daeEl as DAE.IF_EQUATION(condition1 = {DAE.CALL(path=Absyn.IDENT("initial"))}, source = DAE.SOURCE(info = info)),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
true = OptManager.getOption("checkModel");
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// when running checkModel ignore some of the unsupported features as we only want to see nr eqs/vars
// initial if equation that cannot be translated to if expression
case (daeEl as DAE.INITIAL_IF_EQUATION(condition1 = _, source = DAE.SOURCE(info = info)),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
true = OptManager.getOption("checkModel");
then
(vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states);
// when running checkModel ignore some of the unsupported features as we only want to see nr eqs/vars
// error reporting from now on
// if equation that cannot be translated to if expression
case (daeEl as DAE.IF_EQUATION(condition1 = _, source = DAE.SOURCE(info = info)),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
str = DAEDump.dumpElementsStr({daeEl});
str = stringAppend("rewrite equations using if-expressions: ",str);
Error.addSourceMessage(Error.UNSUPPORTED_LANGUAGE_FEATURE, {"if-equations",str}, info);
then
fail();
// initial if equation that cannot be translated to if expression
case (daeEl as DAE.INITIAL_IF_EQUATION(condition1 = _, source = DAE.SOURCE(info = info)),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
str = DAEDump.dumpElementsStr({daeEl});
str = stringAppend("rewrite equations using if-expressions: ",str);
Error.addSourceMessage(Error.UNSUPPORTED_LANGUAGE_FEATURE, {"if-equations",str}, info);
then
fail();
// constrain is not a standard Modelica function, but used in old libraries such as the old Multibody library.
// The OpenModelica backend does not support constrain, but the frontend does (Mathcore needs it for their backend).
// To get a meaningful error message when constrain is used we catch it here, instead of silently failing.
// User-defined functions should have fully qualified names here, so Absyn.IDENT should only match the builtin constrain function.
case (daeEl as DAE.NORETCALL(functionName = Absyn.IDENT(name = "constrain"), source = DAE.SOURCE(info=info)),functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
str = DAEDump.dumpElementsStr({daeEl});
str = stringAppend("rewrite code without using constrain",str);
Error.addSourceMessage(Error.UNSUPPORTED_LANGUAGE_FEATURE,{"constrain function",str}, info);
then
fail();
case (daeEl,functionTree,vars,knvars,extVars,eqns,reqns,ieqns,aeqns,iaeqns,algs,ialgs,whenclauses_1,extObjCls,states)
equation
// show only on failtrace!
true = RTOpts.debugFlag("failtrace");
Debug.fprintln("failtrace", "- BackendDAECreate.lower2 failed on: " +& DAEDump.dumpElementsStr({daeEl}));
then
fail();
end matchcontinue;
end lower3;
/*
* lower all variables
*/
protected function lowerVar
"function: lowerVar
Transforms a DAE variable to DAE variable.
Includes changing the ComponentRef name to a simpler form
\'a\'.\'b\'{2}\'c\'{5} becomes
\'a.b{2}.c\' (as CREF_IDENT(\"a.b.c\",{2}) )
inputs: (DAE.Element, BackendDAE.BinTree /* states */)
outputs: Var"
input DAE.Element inElement;
input BackendDAE.BinTree inBinTree;
output BackendDAE.Var outVar;
output Option<DAE.Exp> outBinding;
output BackendDAE.BinTree outBinTree;
algorithm
(outVar,outBinding,outBinTree) := match (inElement,inBinTree)
local
list<DAE.Subscript> dims;
DAE.ComponentRef name;
BackendDAE.VarKind kind_1;
Option<DAE.Exp> bind;
DAE.VarKind kind;
DAE.VarDirection dir;
BackendDAE.Type tp;
DAE.Flow flowPrefix;
DAE.Stream streamPrefix;
DAE.ElementSource source "origin of equation";
Option<DAE.VariableAttributes> dae_var_attr;
Option<SCode.Comment> comment;
BackendDAE.BinTree states;
DAE.Type t;
case (DAE.VAR(componentRef = name,
kind = kind,
direction = dir,
ty = t,
binding = bind,
dims = dims,
flowPrefix = flowPrefix,
streamPrefix = streamPrefix,
source = source,
variableAttributesOption = dae_var_attr,
absynCommentOption = comment),states)
equation
(kind_1,states) = lowerVarkind(kind, t, name, dir, flowPrefix, streamPrefix, states, dae_var_attr);
tp = lowerType(t);
then
(BackendDAE.VAR(name,kind_1,dir,tp,NONE(),NONE(),dims,-1,source,dae_var_attr,comment,flowPrefix,streamPrefix), bind, states);
end match;
end lowerVar;
protected function lowerKnownVar
"function: lowerKnownVar
Helper function to lower2"
input DAE.Element inElement;
output BackendDAE.Var outVar;
algorithm
outVar := matchcontinue (inElement)
local
list<DAE.Subscript> dims;
DAE.ComponentRef name;
BackendDAE.VarKind kind_1;
Option<DAE.Exp> bind;
DAE.VarKind kind;
DAE.VarDirection dir;
BackendDAE.Type tp;
DAE.Flow flowPrefix;
DAE.Stream streamPrefix;
DAE.ElementSource source "origin of equation";
Option<DAE.VariableAttributes> dae_var_attr;
Option<SCode.Comment> comment;
DAE.Type t;
case (DAE.VAR(componentRef = name,
kind = kind,
direction = dir,
ty = t,
binding = bind,
dims = dims,
flowPrefix = flowPrefix,
streamPrefix = streamPrefix,
source = source,
variableAttributesOption = dae_var_attr,
absynCommentOption = comment))
equation
kind_1 = lowerKnownVarkind(kind, name, dir, flowPrefix);
bind = fixParameterStartBinding(bind,dae_var_attr,kind_1);
tp = lowerType(t);
then
BackendDAE.VAR(name,kind_1,dir,tp,bind,NONE(),dims,-1,source,dae_var_attr,comment,flowPrefix,streamPrefix);
case (_)
equation
print("-BackendDAECreat.lowerKnownVar failed\n");
then
fail();
end matchcontinue;
end lowerKnownVar;
protected function fixParameterStartBinding
input Option<DAE.Exp> bind;
input Option<DAE.VariableAttributes> attr;
input BackendDAE.VarKind kind;
output Option<DAE.Exp> outBind;
algorithm
outBind := matchcontinue (bind,attr,kind)
local
DAE.Exp exp;
case (NONE(),attr,BackendDAE.PARAM())
equation
exp = DAEUtil.getStartAttr(attr);
then SOME(exp);
else bind;
end matchcontinue;
end fixParameterStartBinding;
protected function lowerVarkind
"function: lowerVarkind
Helper function to lowerVar.
inputs: (DAE.VarKind,
Type,
DAE.ComponentRef,
DAE.VarDirection, /* input/output/bidir */
DAE.Flow,
DAE.Stream,
BackendDAE.BinTree /* states */)
outputs VarKind
NOTE: Fails for not states that are not algebraic
variables, e.g. parameters and constants"
input DAE.VarKind inVarKind;
input DAE.Type inType;
input DAE.ComponentRef inComponentRef;
input DAE.VarDirection inVarDirection;
input DAE.Flow inFlow;
input DAE.Stream inStream;
input BackendDAE.BinTree inBinTree;
input Option<DAE.VariableAttributes> daeAttr;
output BackendDAE.VarKind outVarKind;
output BackendDAE.BinTree outBinTree;
algorithm
(outVarKind,outBinTree) := matchcontinue (inVarKind,inType,inComponentRef,inVarDirection,inFlow,inStream,inBinTree,daeAttr)
local
DAE.ComponentRef v,cr;
BackendDAE.BinTree states;
DAE.VarDirection dir;
DAE.Flow flowPrefix;
// States appear differentiated among equations
case (DAE.VARIABLE(),_,v,_,_,_,states,daeAttr)
equation
_ = BackendDAEUtil.treeGet(states, v);
then
(BackendDAE.STATE(),states);
// Or states have StateSelect.always
case (DAE.VARIABLE(),_,v,_,_,_,states,SOME(DAE.VAR_ATTR_REAL(stateSelectOption = SOME(DAE.ALWAYS()))))
equation
states = BackendDAEUtil.treeAdd(states, v, 0);
then (BackendDAE.STATE(),states);
// Or states have StateSelect.prefer
case (DAE.VARIABLE(),_,v,_,_,_,states,SOME(DAE.VAR_ATTR_REAL(stateSelectOption = SOME(DAE.PREFER()))))
equation
states = BackendDAEUtil.treeAdd(states, v, 0);
then (BackendDAE.STATE(),states);
case (DAE.VARIABLE(),(DAE.T_BOOL(_),_),cr,dir,flowPrefix,_,states,_)
equation
failure(BackendVariable.topLevelInput(cr, dir, flowPrefix));
then
(BackendDAE.DISCRETE(),states);
case (DAE.DISCRETE(),(DAE.T_BOOL(_),_),cr,dir,flowPrefix,_,states,_)
equation
failure(BackendVariable.topLevelInput(cr, dir, flowPrefix));
then
(BackendDAE.DISCRETE(),states);
case (DAE.VARIABLE(),(DAE.T_INTEGER(_),_),cr,dir,flowPrefix,_,states,_)
equation
failure(BackendVariable.topLevelInput(cr, dir, flowPrefix));
then
(BackendDAE.DISCRETE(),states);
case (DAE.DISCRETE(),(DAE.T_INTEGER(_),_),cr,dir,flowPrefix,_,states,_)
equation
failure(BackendVariable.topLevelInput(cr, dir, flowPrefix));
then
(BackendDAE.DISCRETE(),states);
case (DAE.VARIABLE(),_,cr,dir,flowPrefix,_,states,_)
equation
failure(BackendVariable.topLevelInput(cr, dir, flowPrefix));
then
(BackendDAE.VARIABLE(),states);
case (DAE.DISCRETE(),_,cr,dir,flowPrefix,_,states,_)
equation
failure(BackendVariable.topLevelInput(cr, dir, flowPrefix));
then
(BackendDAE.DISCRETE(),states);
end matchcontinue;
end lowerVarkind;
protected function lowerKnownVarkind
"function: lowerKnownVarkind
Helper function to lowerKnownVar.
NOTE: Fails for everything but parameters and constants and top level inputs"
input DAE.VarKind inVarKind;
input DAE.ComponentRef inComponentRef;
input DAE.VarDirection inVarDirection;
input DAE.Flow inFlow;
output BackendDAE.VarKind outVarKind;
algorithm
outVarKind := matchcontinue (inVarKind,inComponentRef,inVarDirection,inFlow)
local
DAE.ComponentRef cr;
DAE.VarDirection dir;
DAE.Flow flowPrefix;
case (DAE.PARAM(),_,_,_) then BackendDAE.PARAM();
case (DAE.CONST(),_,_,_) then BackendDAE.CONST();
case (DAE.VARIABLE(),cr,dir,flowPrefix)
equation
BackendVariable.topLevelInput(cr, dir, flowPrefix);
then
BackendDAE.VARIABLE();
// adrpo: topLevelInput might fail!
// case (DAE.VARIABLE(),cr,dir,flowPrefix)
// then
// BackendDAE.VARIABLE();
case (_,_,_,_)
equation
print("lower_known_varkind failed\n");
then
fail();
end matchcontinue;
end lowerKnownVarkind;
protected function lowerType
"Transforms a DAE.Type to Type
"
input DAE.Type inType;
output BackendDAE.Type outType;
algorithm
outType := matchcontinue(inType)
local
list<String> strLst;
Absyn.Path path;
case ((DAE.T_REAL(_),_)) then BackendDAE.REAL();
case ((DAE.T_INTEGER(_),_)) then BackendDAE.INT();
case ((DAE.T_BOOL(_),_)) then BackendDAE.BOOL();
case ((DAE.T_STRING(_),_)) then BackendDAE.STRING();
case ((DAE.T_ENUMERATION(names = strLst),_)) then BackendDAE.ENUMERATION(strLst);
case ((DAE.T_COMPLEX(complexClassType = ClassInf.EXTERNAL_OBJ(path)),_)) then BackendDAE.EXT_OBJECT(path);
else equation print("lowerType failed\n"); then fail();
end matchcontinue;
end lowerType;
protected function lowerExtObjVar
" Helper function to lower2
Fails for all variables except external object instances."
input DAE.Element inElement;
output BackendDAE.Var outVar;
algorithm
outVar:=
match (inElement)
local
list<DAE.Subscript> dims;
DAE.ComponentRef name;
BackendDAE.VarKind kind_1;
Option<DAE.Exp> bind;
DAE.VarKind kind;
DAE.VarDirection dir;
BackendDAE.Type tp;
DAE.Flow flowPrefix;
DAE.Stream streamPrefix;
DAE.ElementSource source;
Option<DAE.VariableAttributes> dae_var_attr;
Option<SCode.Comment> comment;
DAE.Type t;
case (DAE.VAR(componentRef = name,
kind = kind,
direction = dir,
ty = t,
binding = bind,
dims = dims,
flowPrefix = flowPrefix,
streamPrefix = streamPrefix,
source = source,
variableAttributesOption = dae_var_attr,
absynCommentOption = comment))
equation
kind_1 = lowerExtObjVarkind(t);
tp = lowerType(t);
then
BackendDAE.VAR(name,kind_1,dir,tp,bind,NONE(),dims,-1,source,dae_var_attr,comment,flowPrefix,streamPrefix);
end match;
end lowerExtObjVar;
protected function lowerExtObjVarkind
" Helper function to lowerExtObjVar.
NOTE: Fails for everything but External objects"
input DAE.Type inType;
output BackendDAE.VarKind outVarKind;
algorithm
outVarKind:=
match (inType)
local Absyn.Path path;
case ((DAE.T_COMPLEX(complexClassType = ClassInf.EXTERNAL_OBJ(path)),_)) then BackendDAE.EXTOBJ(path);
end match;
end lowerExtObjVarkind;
/*
* lower all equation types
*/
protected function lowerEqn
"function: lowerEqn
Helper function to lower2.
Transforms a DAE.Element to Equation."
input DAE.Element inElement;
output BackendDAE.Equation outEquation;
algorithm
outEquation := match (inElement)
local
DAE.Exp e1,e2;
DAE.ComponentRef cr1,cr2;
DAE.ElementSource source "the element source";
case (DAE.EQUATION(exp = e1,scalar = e2,source = source))
equation
e1 = ExpressionSimplify.simplify(e1);
e2 = ExpressionSimplify.simplify(e2);
then
BackendDAE.EQUATION(e1,e2,source);
case (DAE.INITIALEQUATION(exp1 = e1,exp2 = e2,source = source))
equation
e1 = ExpressionSimplify.simplify(e1);
e2 = ExpressionSimplify.simplify(e2);
then
BackendDAE.EQUATION(e1,e2,source);