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BackendDAEUtil.mo
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BackendDAEUtil.mo
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/*
* This file is part of OpenModelica.
*
* Copyright (c) 1998-2017, Open Source Modelica Consortium (OSMC),
* c/o Linköpings universitet, Department of Computer and Information Science,
* SE-58183 Linköping, Sweden.
*
* All rights reserved.
*
* THIS PROGRAM IS PROVIDED UNDER THE TERMS OF GPL VERSION 3 LICENSE OR
* THIS OSMC PUBLIC LICENSE (OSMC-PL) VERSION 1.2.
* ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES
* RECIPIENT'S ACCEPTANCE OF THE OSMC PUBLIC LICENSE OR THE GPL VERSION 3,
* ACCORDING TO RECIPIENTS CHOICE.
*
* The OpenModelica software and the Open Source Modelica
* Consortium (OSMC) Public License (OSMC-PL) are obtained
* from OSMC, 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.
*
*/
encapsulated package BackendDAEUtil
" file: BackendDAEUtil.mo
package: BackendDAEUtil
description: BackendDAEUtil comprised functions for BackendDAE data types.
This module is a lowered form of a DAE including equations
and simple equations in
two separate lists. The variables are split into known variables
parameters and constants, and unknown variables,
states and algebraic variables.
The module includes the BLT sorting algorithm which sorts the
equations into blocks, and the index reduction algorithm using
dummy derivatives for solving higher index problems.
It also includes the tarjan algorithm to detect strong components
in the BLT sorting."
import Absyn;
import AvlSetInt;
import AvlSetPath;
import BackendDAE;
import BackendDAEFunc;
import BackendEquation;
import DAE;
import FCore;
import Util;
protected
import AdjacencyMatrix;
import Algorithm;
import Array;
import BackendDAEOptimize;
import BackendDAETransform;
import BackendDump;
import BackendDAEEXT;
import BackendInline;
import BackendVarTransform;
import BackendVariable;
import BinaryTree;
import Causalize;
import CheckModel;
import ClassInf;
import CommonSubExpression;
import ComponentReference;
import Config;
import DAEDump;
import DAEMode;
import DAEUtil;
import DataReconciliation;
import Debug;
import DoubleEnded;
import Differentiate;
import DumpGraphML;
import DynamicOptimization;
import ElementSource;
import Error;
import ErrorExt;
import EvaluateFunctions;
import EvaluateParameter;
import ExecStat.execStat;
import ExpandableArray;
import Expression;
import ExpressionDump;
import ExpressionSimplify;
import ExpressionSolve;
import FindZeroCrossings;
import Flags;
import FlagsUtil;
import Global;
import HpcOmEqSystems;
import IndexReduction;
import Initialization;
import Inline;
import InlineArrayEquations;
import List;
import Matching;
import MetaModelica.Dangerous;
import OnRelaxation;
import RemoveSimpleEquations;
import ResolveLoops;
import SCode;
import SCodeUtil;
import Sorting;
import StackOverflow;
import SymbolicImplicitSolver;
import SymbolicJacobian;
import SynchronousFeatures;
import System;
import Tearing;
import Types;
import UnorderedSet;
import Values;
import XMLDump;
import ZeroCrossings;
public function isInitializationDAE
input BackendDAE.Shared inShared;
output Boolean res;
algorithm
res := match(inShared)
case (BackendDAE.SHARED(backendDAEType=BackendDAE.INITIALSYSTEM())) then true;
else false;
end match;
end isInitializationDAE;
public function isSimulationDAE
input BackendDAE.Shared inShared;
output Boolean res;
algorithm
res := match(inShared)
case (BackendDAE.SHARED(backendDAEType=BackendDAE.SIMULATION())) then true;
else false;
end match;
end isSimulationDAE;
public function isJacobianDAE
input BackendDAE.Shared inShared;
output Boolean res;
algorithm
res := match(inShared)
case (BackendDAE.SHARED(backendDAEType=BackendDAE.JACOBIAN())) then true;
else false;
end match;
end isJacobianDAE;
/*************************************************
* checkBackendDAE and stuff
************************************************/
public function checkBackendDAEWithErrorMsg "author: Frenkel TUD
run checkDEALow and prints all errors"
input BackendDAE.BackendDAE inBackendDAE;
protected
list<tuple<DAE.Exp, list<DAE.ComponentRef>>> expCrefs;
list<BackendDAE.Equation> wrongEqns;
algorithm
if not Flags.isSet(Flags.CHECK_BACKEND_DAE) then return; end if;
_ := matchcontinue (inBackendDAE)
local
Integer nVars, nEqns;
Boolean samesize;
BackendDAE.Variables vars;
BackendDAE.EquationArray orderedEqs;
BackendDAE.EqSystem syst;
DAE.FunctionTree functionTree;
case BackendDAE.DAE(eqs=(BackendDAE.EQSYSTEM(orderedVars=vars, orderedEqs=orderedEqs))::{}, shared=BackendDAE.SHARED()) equation
//true = Flags.isSet(Flags.CHECK_BACKEND_DAE);
//Check for correct size
nVars = BackendVariable.varsSize(vars);
nEqns = BackendEquation.equationArraySize(orderedEqs);
samesize = nVars == nEqns;
if Flags.isSet(Flags.CHECK_BACKEND_DAE) then
print("No. of Equations: " + intString(nVars) + " No. of BackendDAE.Variables: " + intString(nEqns) + " Samesize: " + boolString(samesize) + "\n");
end if;
(expCrefs, wrongEqns) = checkBackendDAE(inBackendDAE);
printcheckBackendDAEWithErrorMsg(expCrefs, wrongEqns);
then ();
else equation
Error.addMessage(Error.INTERNAL_ERROR, {"./Compiler/BackEnd/BackendDAEUtil.mo: function checkBackendDAEWithErrorMsg failed"});
then fail();
end matchcontinue;
end checkBackendDAEWithErrorMsg;
public function printcheckBackendDAEWithErrorMsg"author: Frenkel TUD
helper for checkDEALowWithErrorMsg"
input list<tuple<DAE.Exp,list<DAE.ComponentRef>>> inExpCrefs;
input list<BackendDAE.Equation> inWrongEqns;
algorithm
_ := match (inExpCrefs,inWrongEqns)
local
DAE.Exp e;
list<DAE.ComponentRef> crefs;
list<tuple<DAE.Exp,list<DAE.ComponentRef>>> res;
list<String> strcrefs;
String crefstring, expstr,scopestr;
BackendDAE.Equation eqn;
list<BackendDAE.Equation> wrongEqns;
case ({},{}) then ();
case ({},eqn::wrongEqns)
equation
printEqnSizeError(eqn);
printcheckBackendDAEWithErrorMsg({},wrongEqns);
then ();
case (((e,crefs))::res,wrongEqns)
equation
strcrefs = List.map(crefs,ComponentReference.crefStr);
crefstring = stringDelimitList(strcrefs,", ");
expstr = ExpressionDump.printExpStr(e);
scopestr = stringAppendList({crefstring," from Expression: ",expstr});
Error.addMessage(Error.LOOKUP_VARIABLE_ERROR, {scopestr,"BackendDAE object"});
printcheckBackendDAEWithErrorMsg(res,wrongEqns);
then
();
end match;
end printcheckBackendDAEWithErrorMsg;
protected function printEqnSizeError"author: Frenkel TUD 2010-12"
input BackendDAE.Equation inEqn;
algorithm
_ := matchcontinue(inEqn)
local
BackendDAE.Equation eqn;
DAE.Exp e1, e2;
DAE.ComponentRef cr;
DAE.Type t1,t2;
String eqnstr, t1str, t2str, tstr;
DAE.ElementSource source;
case (eqn as BackendDAE.EQUATION(exp=e1,scalar=e2,source=source))
equation
eqnstr = BackendDump.equationString(eqn);
t1 = Expression.typeof(e1);
t2 = Expression.typeof(e2);
t1str = Types.unparseTypeNoAttr(t1);
t2str = Types.unparseTypeNoAttr(t2);
tstr = stringAppendList({t1str," != ", t2str});
Error.addSourceMessage(Error.EQUATION_TYPE_MISMATCH_ERROR, {eqnstr,tstr}, ElementSource.getElementSourceFileInfo(source));
then ();
case (eqn as BackendDAE.SOLVED_EQUATION(componentRef=cr,exp=e1,source=source))
equation
eqnstr = BackendDump.equationString(eqn);
t1 = Expression.typeof(e1);
t2 = ComponentReference.crefLastType(cr);
t1str = Types.unparseTypeNoAttr(t1);
t2str = Types.unparseTypeNoAttr(t2);
tstr = stringAppendList({t1str," != ", t2str});
Error.addSourceMessage(Error.EQUATION_TYPE_MISMATCH_ERROR, {eqnstr,tstr}, ElementSource.getElementSourceFileInfo(source));
then ();
//
else ();
end matchcontinue;
end printEqnSizeError;
public function checkBackendDAE "author: Frenkel TUD
This function checks the BackendDAE object if
- all component refercences used in the expressions are
part of the BackendDAE object.
- all variables that are reinit are states
Returns all component references which not part of the BackendDAE object."
input BackendDAE.BackendDAE inBackendDAE;
output list<tuple<DAE.Exp,list<DAE.ComponentRef>>> outExpCrefs;
output list<BackendDAE.Equation> outWrongEqns;
algorithm
(outExpCrefs,outWrongEqns) := matchcontinue inBackendDAE
local
BackendDAE.EqSystem syst;
BackendDAE.Shared shared;
BackendDAE.Variables allvars;
list<tuple<DAE.Exp,list<DAE.ComponentRef>>> expcrefs;
list<BackendDAE.Equation> wrongEqns;
case BackendDAE.DAE(syst::{}, shared)
equation
allvars = BackendVariable.mergeVariables(syst.orderedVars, shared.globalKnownVars);
((_, expcrefs)) = traverseBackendDAEExpsVars(syst.orderedVars, checkBackendDAEExp, (allvars, {}));
((_, expcrefs)) = traverseBackendDAEExpsEqns(shared.removedEqs, checkBackendDAEExp, (allvars, expcrefs));
((_, expcrefs)) = traverseBackendDAEExpsVars(shared.globalKnownVars, checkBackendDAEExp, (allvars, expcrefs));
((_, expcrefs)) = traverseBackendDAEExpsEqns(syst.orderedEqs, checkBackendDAEExp, (allvars, expcrefs));
((_, expcrefs)) = traverseBackendDAEExpsEqns(syst.removedEqs, checkBackendDAEExp, (allvars, expcrefs));
((_, expcrefs)) = traverseBackendDAEExpsEqns(shared.initialEqs, checkBackendDAEExp, (allvars, expcrefs));
wrongEqns = BackendEquation.traverseEquationArray(syst.orderedEqs, checkEquationSize, {});
wrongEqns = BackendEquation.traverseEquationArray(shared.removedEqs, checkEquationSize, wrongEqns);
wrongEqns = BackendEquation.traverseEquationArray(syst.removedEqs, checkEquationSize, wrongEqns);
wrongEqns = BackendEquation.traverseEquationArray(shared.initialEqs, checkEquationSize, wrongEqns);
then
(expcrefs, wrongEqns);
else
equation
true = Flags.isSet(Flags.FAILTRACE);
Debug.trace("- BackendDAEUtil.checkBackendDAE failed\n");
then
fail();
end matchcontinue;
end checkBackendDAE;
protected function checkBackendDAEExp
input DAE.Exp inExp;
input tuple<BackendDAE.Variables,list<tuple<DAE.Exp,list<DAE.ComponentRef>>>> inTpl;
output DAE.Exp outExp;
output tuple<BackendDAE.Variables,list<tuple<DAE.Exp,list<DAE.ComponentRef>>>> outTpl;
algorithm
(outExp,outTpl) := matchcontinue (inExp,inTpl)
local
DAE.Exp exp;
BackendDAE.Variables vars;
list<DAE.ComponentRef> crefs;
list<tuple<DAE.Exp,list<DAE.ComponentRef>>> lstExpCrefs,lstExpCrefs1;
case (exp,(vars,lstExpCrefs))
equation
(_,(_,crefs)) = Expression.traverseExpBottomUp(exp,traversecheckBackendDAEExp,(vars,{}));
then (exp, if not listEmpty(crefs) then (vars,(exp,crefs)::lstExpCrefs) else inTpl);
else (inExp,inTpl);
end matchcontinue;
end checkBackendDAEExp;
protected function traversecheckBackendDAEExp
input DAE.Exp inExp;
input tuple<BackendDAE.Variables,list<DAE.ComponentRef>> inTuple;
output DAE.Exp outExp;
output tuple<BackendDAE.Variables,list<DAE.ComponentRef>> outTuple;
algorithm
(outExp,outTuple) := matchcontinue (inExp,inTuple)
local
DAE.Exp e,e1;
BackendDAE.Variables vars,vars1;
DAE.ComponentRef cr;
list<DAE.ComponentRef> crefs,crefs1;
list<DAE.Exp> expl;
list<DAE.Var> varLst;
list<BackendDAE.Var> backendVars;
DAE.ReductionIterators riters;
tuple<BackendDAE.Variables,list<DAE.ComponentRef>> tp;
// special case for time, it is never part of the equation system
case (e as DAE.CREF(componentRef = DAE.CREF_IDENT(ident="time")),_)
then (e, inTuple);
// Special Case for Records
case (e as DAE.CREF(componentRef = cr,ty= DAE.T_COMPLEX(varLst=varLst,complexClassType=ClassInf.RECORD(_))),_)
equation
expl = List.map1(varLst,Expression.generateCrefsExpFromExpVar,cr);
(_,tp) = Expression.traverseExpList(expl,traversecheckBackendDAEExp,inTuple);
then (e, tp);
// Special Case for Arrays
case (e as DAE.CREF(ty = DAE.T_ARRAY()),_)
equation
(e1,true) = Expression.extendArrExp(e,false);
(_,tp) = Expression.traverseExpBottomUp(e1,traversecheckBackendDAEExp,inTuple);
then (e, tp);
// case for Reductions
case (e as DAE.REDUCTION(iterators = riters),(vars,crefs))
equation
// add idents to vars
backendVars = List.map(riters,makeIterVariable);
vars = BackendVariable.addVars(backendVars,vars);
then (e, (vars,crefs));
// case for functionpointers
case (e as DAE.CREF(ty=DAE.T_FUNCTION_REFERENCE_FUNC()),_)
then (e, inTuple);
case (e as DAE.CREF(componentRef = cr),(vars,_))
equation
(_,_) = BackendVariable.getVar(cr, vars);
then (e, inTuple);
case (e as DAE.CREF(componentRef = cr),(vars,crefs))
//failed before, so no need to getVar() again
//failure((_,_) = BackendVariable.getVar(cr, vars));
then (e, (vars,cr::crefs));
else (inExp,inTuple);
end matchcontinue;
end traversecheckBackendDAEExp;
protected function makeIterVariable
input DAE.ReductionIterator iter;
output BackendDAE.Var backendVar;
protected
String name;
DAE.ComponentRef cr;
algorithm
name := Expression.reductionIterName(iter);
cr := ComponentReference.makeCrefIdent(name,DAE.T_INTEGER_DEFAULT,{});
backendVar := BackendDAE.VAR(cr, BackendDAE.VARIABLE(), DAE.BIDIR(), DAE.NON_PARALLEL(), DAE.T_INTEGER_DEFAULT, NONE(), NONE(), {}, DAE.emptyElementSource, NONE(), NONE(), NONE(), NONE(), DAE.NON_CONNECTOR(), DAE.NOT_INNER_OUTER(), false, false);
end makeIterVariable;
protected function checkEquationSize"author: Frenkel TUD 2010-12
- check if the left hand side and the rigth hand side have equal types."
input BackendDAE.Equation inEq;
input list<BackendDAE.Equation> inEqs;
output BackendDAE.Equation outEq;
output list<BackendDAE.Equation> outEqs;
algorithm
(outEq,outEqs) := matchcontinue (inEq,inEqs)
local
BackendDAE.Equation e;
list<BackendDAE.Equation> wrongEqns,wrongEqns1;
DAE.Exp e1, e2;
DAE.ComponentRef cr;
DAE.Type t1,t2;
Boolean b;
case (e as BackendDAE.EQUATION(exp=e1,scalar=e2),wrongEqns)
equation
t1 = Expression.typeof(e1);
t2 = Expression.typeof(e2);
b = Expression.equalTypes(t1,t2);
wrongEqns1 = List.consOnTrue(not b,e,wrongEqns);
then (e,wrongEqns1);
case (e as BackendDAE.SOLVED_EQUATION(componentRef=cr,exp=e1),wrongEqns)
equation
t1 = Expression.typeof(e1);
t2 = ComponentReference.crefLastType(cr);
b = Expression.equalTypes(t1,t2);
wrongEqns1 = List.consOnTrue(not b,e,wrongEqns);
then (e,wrongEqns1);
//
else (inEq,inEqs);
end matchcontinue;
end checkEquationSize;
public function checkAssertCondition "Succeds if condition of assert is not constant false"
input DAE.Exp cond;
input DAE.Exp message;
input DAE.Exp level;
input SourceInfo info;
algorithm
// Don't check assertions when checking models
if Flags.getConfigBool(Flags.CHECK_MODEL) then return; end if;
_ := matchcontinue(cond,message,level,info)
local
String messageStr;
case (_,_,_,_)
guard
not Expression.isConstFalse(cond)
then ();
case (_,_,_,_)
equation
failure(DAE.ENUM_LITERAL(index=2) = level);
then ();
case(_,_,_,_)
equation
true = Expression.isConstFalse(cond);
messageStr = ExpressionDump.printExpStr(message);
Error.addSourceMessage(Error.ASSERT_CONSTANT_FALSE_ERROR,{messageStr},info);
then fail();
end matchcontinue;
end checkAssertCondition;
// =============================================================================
// Util function at Backend using for lowering and other stuff
//
// =============================================================================
public function copyBackendDAE "author: Frenkel TUD, wbraun
Copy the dae to avoid changes in vectors."
input BackendDAE.BackendDAE inDAE;
output BackendDAE.BackendDAE outDAE;
algorithm
outDAE := mapEqSystem(inDAE, copyEqSystemTraverser);
outDAE.shared := copyBackendDAEShared(outDAE.shared);
end copyBackendDAE;
public function copyEqSystemTraverser
input BackendDAE.EqSystem inSystem;
input BackendDAE.Shared inShared;
output BackendDAE.EqSystem outSystem;
output BackendDAE.Shared outShared;
algorithm
outSystem := copyEqSystem(inSystem);
outShared := inShared;
end copyEqSystemTraverser;
public function copyEqSystem
input BackendDAE.EqSystem inSystem;
output BackendDAE.EqSystem outSystem;
protected
BackendDAE.Variables vars;
BackendDAE.EquationArray eqns, removedEqs;
Option<BackendDAE.AdjacencyMatrix> m, mt;
BackendDAE.Matching matching;
algorithm
vars := BackendVariable.copyVariables(inSystem.orderedVars);
eqns := BackendEquation.copyEquationArray(inSystem.orderedEqs);
removedEqs := BackendEquation.copyEquationArray(inSystem.removedEqs);
m := AdjacencyMatrix.copyAdjacencyMatrix(inSystem.m);
mt := AdjacencyMatrix.copyAdjacencyMatrixT(inSystem.mT);
matching := copyMatching(inSystem.matching);
outSystem := BackendDAE.EQSYSTEM(vars, eqns, m, mt, inSystem.mapping, matching, inSystem.stateSets, inSystem.partitionKind, removedEqs);
end copyEqSystem;
public function copyEqSystems
input BackendDAE.EqSystems inSystems;
output BackendDAE.EqSystems outSystems = {};
algorithm
for e in inSystems loop
outSystems := copyEqSystem(e) :: outSystems;
end for;
end copyEqSystems;
public function mergeEqSystems
input BackendDAE.EqSystem System1;
input output BackendDAE.EqSystem System2;
algorithm
System2.orderedEqs := BackendEquation.merge(System1.orderedEqs,System2.orderedEqs);
System2.orderedVars := BackendVariable.mergeVariables(System1.orderedVars,System2.orderedVars);
end mergeEqSystems;
public function copyBackendDAEShared
" author: Frenkel TUD, wbraun
Copy the shared part of an BackendDAE to avoid changes in
vectors."
input BackendDAE.Shared inShared;
output BackendDAE.Shared outShared;
algorithm
outShared:=
match (inShared)
local
BackendDAE.Shared shared;
case shared as BackendDAE.SHARED()
equation
shared.globalKnownVars = BackendVariable.copyVariables(shared.globalKnownVars);
shared.externalObjects = BackendVariable.copyVariables(shared.externalObjects);
shared.initialEqs = BackendEquation.copyEquationArray(shared.initialEqs);
shared.removedEqs = BackendEquation.copyEquationArray(shared.removedEqs);
then
shared;
end match;
end copyBackendDAEShared;
public function copyMatching
input BackendDAE.Matching inMatching;
output BackendDAE.Matching outMatching;
algorithm
outMatching := match (inMatching)
local
array<Integer> ass1, cass1, ass2, cass2;
BackendDAE.StrongComponents comps;
case (BackendDAE.NO_MATCHING()) then BackendDAE.NO_MATCHING();
case (BackendDAE.MATCHING(ass1=ass1,ass2=ass2,comps=comps))
equation
cass1 = arrayCopy(ass1);
cass2 = arrayCopy(ass2);
then BackendDAE.MATCHING(cass1,cass2,comps);
end match;
end copyMatching;
public function getCompsOfMatching "author: mwalther
Get all strong connected components of the given matching. If the matching
has the concrete type NO_MATCHING, the returned list is empty."
input BackendDAE.Matching inMatching;
output BackendDAE.StrongComponents outComps;
algorithm
outComps := match (inMatching)
local
BackendDAE.StrongComponents comps;
case (BackendDAE.MATCHING(comps=comps))
then comps;
else
then {};
end match;
end getCompsOfMatching;
public function addVarsToEqSystem
input BackendDAE.EqSystem syst;
input list<BackendDAE.Var> varlst;
output BackendDAE.EqSystem osyst;
protected
BackendDAE.Variables vars;
algorithm
BackendDAE.EQSYSTEM(orderedVars=vars) := syst;
osyst := setEqSystVars(syst, BackendVariable.addVars(varlst, vars));
end addVarsToEqSystem;
public function numberOfZeroCrossings "author: lochel"
input BackendDAE.BackendDAE inBackendDAE;
output Integer outNumZeroCrossings "number of ordinary zero crossings" ;
output Integer outNumTimeEvents "number of zero crossings that are time events" ;
output Integer outNumRelations;
output Integer outNumMathEventFunctions;
protected
BackendDAE.EventInfo eventInfo = inBackendDAE.shared.eventInfo;
algorithm
outNumZeroCrossings := ZeroCrossings.length(eventInfo.zeroCrossings);
outNumTimeEvents := listLength(eventInfo.timeEvents);
outNumRelations := DoubleEnded.length(eventInfo.relations);
outNumMathEventFunctions := eventInfo.numberMathEvents;
end numberOfZeroCrossings;
public function numberOfDiscreteVars "author: lochel"
input BackendDAE.BackendDAE inBackendDAE;
output Integer outNumDiscreteReal;
algorithm
outNumDiscreteReal := countDiscreteVars(inBackendDAE);
end numberOfDiscreteVars;
protected function countDiscreteVars "author: lochel"
input BackendDAE.BackendDAE inDAE;
output Integer outNumDiscreteVars;
protected
BackendDAE.Variables globalKnownVars, alias;
algorithm
BackendDAE.SHARED(globalKnownVars=globalKnownVars, aliasVars=alias) := inDAE.shared;
outNumDiscreteVars := countDiscreteVars1(inDAE.eqs);
outNumDiscreteVars := BackendVariable.traverseBackendDAEVars(globalKnownVars, countDiscreteVars3, outNumDiscreteVars);
outNumDiscreteVars := BackendVariable.traverseBackendDAEVars(alias, countDiscreteVars3, outNumDiscreteVars);
end countDiscreteVars;
protected function countDiscreteVars1 "author: lochel"
input BackendDAE.EqSystems inEqSystems;
output Integer outNumDiscreteVars;
algorithm
outNumDiscreteVars := 0;
outNumDiscreteVars := List.fold(inEqSystems, countDiscreteVars2, outNumDiscreteVars);
end countDiscreteVars1;
protected function countDiscreteVars2 "author: lochel"
input BackendDAE.EqSystem inEqSystem;
input Integer inNumDiscreteVars;
output Integer outNumDiscreteVars;
protected
BackendDAE.Variables vars;
algorithm
BackendDAE.EQSYSTEM(orderedVars=vars) := inEqSystem;
outNumDiscreteVars := BackendVariable.traverseBackendDAEVars(vars, countDiscreteVars3, inNumDiscreteVars);
end countDiscreteVars2;
protected function countDiscreteVars3 "author: lochel"
input BackendDAE.Var var;
input Integer nDiscreteVars;
output BackendDAE.Var outVar;
output Integer outCount;
algorithm
(outVar,outCount) := match (var,nDiscreteVars)
// discrete
case (BackendDAE.VAR(varKind=BackendDAE.DISCRETE(), varType=DAE.T_REAL()), _)
then (var, nDiscreteVars+1);
else (var,nDiscreteVars);
end match;
end countDiscreteVars3;
public function replaceCrefsWithValues
input DAE.Exp inExp;
input tuple<BackendDAE.Variables, DAE.ComponentRef> inTuple;
output DAE.Exp outExp;
output tuple<BackendDAE.Variables, DAE.ComponentRef> outTuple;
algorithm
(outExp,outTuple) := matchcontinue (inExp,inTuple)
local
DAE.Exp e;
BackendDAE.Variables vars;
DAE.ComponentRef cr, cr_orign;
case (DAE.CREF(cr, _), (vars, cr_orign))
guard
not ComponentReference.crefEqualNoStringCompare(cr, cr_orign)
equation
({BackendDAE.VAR(bindExp = SOME(e))}, _) = BackendVariable.getVar(cr, vars);
(e, _) = Expression.traverseExpBottomUp(e, replaceCrefsWithValues, (vars, cr_orign));
then (e, (vars,cr_orign));
else (inExp,inTuple);
end matchcontinue;
end replaceCrefsWithValues;
public function makeExpType
"Transforms a BackendDAE.Type to DAE.Type"
input BackendDAE.Type inType;
output DAE.Type outType;
algorithm
outType := inType;
end makeExpType;
public function hasExpContinuousParts
"Returns true if expression has contiuous parts,
and false if the expression is completely discrete.
Used to detect if an expression is a ZeroCrossing."
input DAE.Exp inExp;
input BackendDAE.Variables inVariables;
input BackendDAE.Variables inKnvars;
output Boolean outBoolean;
algorithm
(_,(_, _, outBoolean)) := Expression.traverseExpTopDown(inExp, traversingContinuousExpFinder, (inVariables, inKnvars, false));
end hasExpContinuousParts;
protected function traversingContinuousExpFinder "Helper for isDiscreteExp"
input DAE.Exp inExp;
input tuple<BackendDAE.Variables,BackendDAE.Variables,Boolean> inTpl;
output DAE.Exp outExp;
output Boolean cont;
output tuple<BackendDAE.Variables,BackendDAE.Variables,Boolean> outTpl;
algorithm
(outExp, cont, outTpl) := matchcontinue (inExp, inTpl)
local
BackendDAE.Variables vars, globalKnownVars;
DAE.ComponentRef cr;
BackendDAE.Var backendVar;
Absyn.Ident name;
case (DAE.CREF(componentRef=cr), (vars, globalKnownVars, _)) equation
((backendVar::_), _) = BackendVariable.getVar(cr, vars);
false = BackendVariable.isVarDiscrete(backendVar);
then (inExp, false, (vars, globalKnownVars, true));
// builtin variable time is not discrete
case (DAE.CREF(componentRef=DAE.CREF_IDENT(ident="time")), (vars, globalKnownVars, _))
then (inExp, false, (vars, globalKnownVars, true));
// Known variables that are input are continuous
case (DAE.CREF(componentRef=cr), (vars, globalKnownVars, _)) equation
(backendVar::_, _) = BackendVariable.getVar(cr, globalKnownVars);
true = BackendVariable.isInput(backendVar);
then (inExp, false, (vars, globalKnownVars, true));
case (DAE.CALL(path=Absyn.IDENT(name=name)), _)
guard stringEq("pre", name) or
stringEq("change", name) or
stringEq("ceil", name) or
stringEq("floor", name)
then (inExp, false, inTpl);
case (DAE.CALL(path=Absyn.IDENT(name="noEvent")), (vars, globalKnownVars, _))
then (inExp, false, (vars, globalKnownVars, false));
else (inExp, true, inTpl);
end matchcontinue;
end traversingContinuousExpFinder;
public function statesAndVarsExp
"This function investigates an expression and returns as subexpressions
that are variable names or derivatives of state names or states
inputs: (DAE.Exp, BackendDAE.Variables)
outputs: DAE.Exp list"
input DAE.Exp inExp;
input BackendDAE.Variables inVariables;
output list<DAE.Exp> exps;
algorithm
(_,(_,exps)) := Expression.traverseExpTopDown(inExp, traversingstatesAndVarsExpFinder, (inVariables,{}));
end statesAndVarsExp;
public function traversingstatesAndVarsExpFinder "
Author: Frenkel TUD 2010-10
Helper for statesAndVarsExp"
input DAE.Exp inExp;
input tuple<BackendDAE.Variables,list<DAE.Exp>> inTpl;
output DAE.Exp outExp;
output Boolean cont;
output tuple<BackendDAE.Variables,list<DAE.Exp>> outTpl;
algorithm
(outExp,cont,outTpl) := matchcontinue (inExp,inTpl)
local
DAE.ComponentRef cr;
list<DAE.Exp> expl,res,creexps;
DAE.Exp e,e1;
list<DAE.Var> varLst;
BackendDAE.Variables vars;
// Special Case for Records
case ((e as DAE.CREF(componentRef = cr,ty= DAE.T_COMPLEX(varLst=varLst,complexClassType=ClassInf.RECORD(_)))),(vars,_))
equation
creexps = List.map1(varLst,Expression.generateCrefsExpFromExpVar,cr);
(_,(_,res)) = Expression.traverseExpListTopDown(creexps, traversingstatesAndVarsExpFinder, inTpl);
then (e,true,(vars,res));
// Special Case for unextended arrays
case ((e as DAE.CREF(ty = DAE.T_ARRAY())),(vars,_))
equation
(e1,true) = Expression.extendArrExp(e,false);
(_,(_,res)) = Expression.traverseExpTopDown(e1, traversingstatesAndVarsExpFinder, inTpl);
then (e,true,(vars,res));
// Special Case for time variable
//case (((e as DAE.CREF(componentRef = DAE.CREF_IDENT(ident="time"))),(vars,expl)))
// then ((e,false,(vars,e::expl)));
case ((e as DAE.CREF(componentRef = cr)),(vars,expl))
equation
(_,_) = BackendVariable.getVar(cr, vars);
then (e,false,(vars,e::expl));
case ((e as DAE.CALL(path = Absyn.IDENT(name = "der"),expLst = {DAE.CREF(componentRef = cr)})),(vars,expl))
equation
((BackendDAE.VAR(varKind = BackendDAE.STATE())::_),_) = BackendVariable.getVar(cr, vars);
then (e,false,(vars,e::expl));
// is this case right?
case (e as DAE.CALL(path = Absyn.IDENT(name = "der"),expLst = {DAE.CREF(componentRef = cr)}),(vars,_))
equation
(_,_) = BackendVariable.getVar(cr, vars);
then (e,false,inTpl);
else (inExp,true,inTpl);
end matchcontinue;
end traversingstatesAndVarsExpFinder;
public function isLoopDependent
"Checks if an expression is a variable that depends on a loop iterator,
ie. for i loop
V[i] = ... // V depends on i
end for;
Used by lowerStatementInputsOutputs in STMT_FOR case."
input DAE.Exp varExp;
input DAE.Exp iteratorExp;
output Boolean isDependent;
algorithm
isDependent := matchcontinue(varExp, iteratorExp)
local
list<DAE.Exp> subscript_exprs;
list<DAE.Subscript> subscripts;
DAE.ComponentRef cr;
case (DAE.CREF(componentRef = cr), _)
equation
subscripts = ComponentReference.crefSubs(cr);
subscript_exprs = List.map(subscripts, Expression.subscriptIndexExp);
true = isLoopDependentHelper(subscript_exprs, iteratorExp);
then true;
case (DAE.ASUB(sub = subscript_exprs), _)
then isLoopDependentHelper(subscript_exprs, iteratorExp);
else false;
end matchcontinue;
end isLoopDependent;
protected function isLoopDependentHelper
"Helper for isLoopDependent.
Checks if a list of subscripts contains a certain iterator expression."
input list<DAE.Exp> subscripts;
input DAE.Exp iteratorExp;
output Boolean isDependent = false;
algorithm
for subscript in subscripts loop
try
if Expression.expContains(subscript, iteratorExp) then
isDependent := true;
return;
end if;
else
// go on with iteration
end try;
end for;
end isLoopDependentHelper;
public function devectorizeArrayVar
input DAE.Exp arrayVar;
output DAE.Exp newArrayVar;
algorithm
newArrayVar := matchcontinue(arrayVar)
local
DAE.ComponentRef cr;
DAE.Type ty;
list<DAE.Exp> subs;
DAE.Exp e;
case (DAE.ASUB(exp = DAE.ARRAY(array = (DAE.CREF(componentRef = cr)::_)), sub = subs))
equation
cr = ComponentReference.crefStripLastSubs(cr);
e = Expression.crefExp(cr);
then
// adrpo: TODO! FIXME! check if this is TYPE correct!
// shouldn't we change the type using the subs?
Expression.makeASUB(e, subs);
case (DAE.ASUB(exp = DAE.MATRIX(matrix = (((DAE.CREF(componentRef = cr))::_)::_)), sub = subs))
equation
cr = ComponentReference.crefStripLastSubs(cr);
e = Expression.crefExp(cr);
then
// adrpo: TODO! FIXME! check if this is TYPE correct!
// shouldn't we change the type using the subs?
Expression.makeASUB(e, subs);
case (_) then arrayVar;
end matchcontinue;
end devectorizeArrayVar;
public function explodeArrayVars
"Explodes an array variable into its elements. Takes a variable that is a CREF
or ASUB, the name of the iterator variable and a range expression that the
iterator iterates over."
input DAE.Exp arrayVar;
input DAE.Exp iteratorExp;
input DAE.Exp rangeExpr;
input BackendDAE.Variables vars;
output list<DAE.Exp> arrayElements;
algorithm
arrayElements := matchcontinue(arrayVar, iteratorExp, rangeExpr, vars)
local
list<DAE.Exp> clonedElements, newElements;
list<DAE.Exp> indices;
DAE.ComponentRef cref;
list<DAE.ComponentRef> varCrefs;
list<DAE.Exp> varExprs;
DAE.Exp daeExp;
list<BackendDAE.Var> bvars;
case (DAE.CREF(), _, _, _)
equation
indices = rangeExprs(rangeExpr);
clonedElements = List.fill(arrayVar, listLength(indices));
newElements = generateArrayElements(clonedElements, indices, iteratorExp);
then newElements;
case (DAE.ASUB(exp = DAE.CREF()), _, _, _)
equation
// If the range is constant, then we can use it to generate only those
// array elements that are actually used.
indices = rangeExprs(rangeExpr);
clonedElements = List.fill(arrayVar, listLength(indices));
newElements = generateArrayElements(clonedElements, indices, iteratorExp);
then newElements;
case (DAE.CREF(componentRef = cref), _, _, _)
equation
(bvars, _) = BackendVariable.getVar(cref, vars);
varExprs = List.map(bvars, BackendVariable.varExp);
//varCrefs = List.map(bvars, BackendVariable.varCref);
//varExprs = List.map(varCrefs, Expression.crefExp);
then varExprs;
case (DAE.ASUB(exp = DAE.CREF(componentRef = cref)), _, _, _)
equation
// If the range is not constant, then we just extract all array elements
// of the array.
(bvars, _) = BackendVariable.getVar(cref, vars);
varExprs = List.map(bvars, BackendVariable.varExp);
//varCrefs = List.map(bvars, BackendVariable.varCref);
//varExprs = List.map(varCrefs, Expression.crefExp);
then varExprs;
case (DAE.ASUB(exp = daeExp), _, _, _)
equation
varExprs = Expression.flattenArrayExpToList(daeExp);
then
varExprs;
end matchcontinue;
end explodeArrayVars;
protected function rangeExprs
"Tries to convert a range to a list of integer expressions. Returns a list of
integer expressions if possible, or fails. Used by explodeArrayVars."
input DAE.Exp inRange;
output list<DAE.Exp> outValues;
algorithm
outValues := match inRange
local
list<DAE.Exp> arrayElements;
Integer start, stop;
list<Integer> vals;
case DAE.ARRAY(array = arrayElements) then arrayElements;
case DAE.RANGE() then Expression.expandRange(inRange);
end match;
end rangeExprs;
public function daeSize
"author: Frenkel TUD
Returns the size of the dae system, which correspondents to the number of variables."
input BackendDAE.BackendDAE inDAE;
output Integer sz;
algorithm
sz := sum(systemSize(s) for s in inDAE.eqs);
end daeSize;
public function systemSize
"Returns the size of the dae system, the size of the equations in an BackendDAE.EquationArray,
which not corresponds to the number of equations in a system."
input BackendDAE.EqSystem inEqSystem;
output Integer outSize = BackendEquation.equationArraySize(inEqSystem.orderedEqs);
end systemSize;
public function maxSizeOfEqSystems
"Returns the maximum system size of given EqSystems"
input list<BackendDAE.EqSystem> inEqSystems;
output Integer outSize = 0;
protected
Integer i;
algorithm
for eqSyst in inEqSystems loop
i := systemSize(eqSyst);
if intGt(i, outSize) then
outSize := i;
end if;
end for;
end maxSizeOfEqSystems;
public function numOfComps "Returns the number of StrongComponents in the EqSystem
author: waurich TUD"