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Add.java
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196 lines (179 loc) · 6.66 KB
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package symjava.symbolic;
import static com.sun.org.apache.bcel.internal.generic.InstructionConstants.DADD;
import static com.sun.org.apache.bcel.internal.generic.InstructionConstants.FADD;
import static com.sun.org.apache.bcel.internal.generic.InstructionConstants.IADD;
import static com.sun.org.apache.bcel.internal.generic.InstructionConstants.LADD;
import java.util.List;
import java.util.Map;
import symjava.symbolic.Expr.TYPE;
import symjava.symbolic.arity.BinaryOp;
import symjava.symbolic.utils.BytecodeUtils;
import symjava.symbolic.utils.Utils;
import com.sun.org.apache.bcel.internal.Constants;
import com.sun.org.apache.bcel.internal.generic.ConstantPoolGen;
import com.sun.org.apache.bcel.internal.generic.InstructionFactory;
import com.sun.org.apache.bcel.internal.generic.InstructionHandle;
import com.sun.org.apache.bcel.internal.generic.InstructionList;
import com.sun.org.apache.bcel.internal.generic.MethodGen;
import com.sun.org.apache.bcel.internal.generic.ObjectType;
import com.sun.org.apache.bcel.internal.generic.Type;
public class Add extends BinaryOp {
public Add(Expr l, Expr r) {
super(l, r);
updateLabel();
}
public static Expr shallowSimplifiedIns(Expr l, Expr r) {
int simOps = l.getSimplifyOps() + r.getSimplifyOps() + 1;
if(l instanceof SymReal<?> && r instanceof SymReal<?>) {
if(l instanceof SymInteger && r instanceof SymInteger) {
SymInteger il = (SymInteger)l;
SymInteger ir = (SymInteger)r;
return new SymInteger(il.getValue()+ir.getValue()).setSimplifyOps(simOps).setAsSimplified();
} else if(l instanceof SymLong && r instanceof SymLong) {
SymLong il = (SymLong)l;
SymLong ir = (SymLong)r;
return new SymLong(il.getValue()+ir.getValue()).setSimplifyOps(simOps).setAsSimplified();
}
Number t1 = (Number)((SymReal<?>)l).getValue();
Number t2 = (Number)((SymReal<?>)r).getValue();
return new SymDouble(t1.doubleValue() + t2.doubleValue()).setSimplifyOps(simOps).setAsSimplified();
} else if(Symbol.C0.symEquals(l))
return r.clone().setSimplifyOps(simOps).setAsSimplified();
else if(Symbol.C0.symEquals(r)) {
return l.clone().setSimplifyOps(simOps).setAsSimplified();
} else if(l instanceof Negate && r instanceof Negate) {
Negate nl = (Negate)l;
Negate nr = (Negate)r;
return new Negate(Add.shallowSimplifiedIns(nl.arg, nr.arg)).setSimplifyOps(simOps).setAsSimplified();
} else if(l instanceof Negate) {
Negate nl = (Negate)l;
return Subtract.shallowSimplifiedIns(r, nl.arg); //Do not increase simplifyOps
} else if(r instanceof Negate) {
Negate nr = (Negate)r;
return Subtract.shallowSimplifiedIns(l, nr.arg); //Do not increase simplifyOps
} else if(l instanceof Multiply && r instanceof Multiply) {
Multiply ml = (Multiply)l;
Multiply mr = (Multiply)r;
if(ml.isCoeffMulSymbol() && mr.isCoeffMulSymbol()) {
if(Utils.symCompare(ml.getSymbolTerm(), mr.getSymbolTerm())) {
Expr coeff = ml.getCoeffTerm().add(mr.getCoeffTerm());
return coeff.multiply(ml.getSymbolTerm());
}
} else if(ml.isCoeffMulSymbol()) {
if(Utils.symCompare(ml.getSymbolTerm(), r)) {
Expr coeff = ml.getCoeffTerm().add(Symbol.C1);
return coeff.multiply(r);
}
} else if(mr.isCoeffMulSymbol()) {
if(Utils.symCompare(mr.getSymbolTerm(), l)) {
Expr coeff = mr.getCoeffTerm().add(Symbol.C1);
return coeff.multiply(l);
}
}
} else if(l instanceof Multiply) {
Multiply ml = (Multiply)l;
if(ml.isCoeffMulSymbol()) {
if(Utils.symCompare(ml.getSymbolTerm(), r)) {
Expr coeff = ml.getCoeffTerm().add(Symbol.C1);
return coeff.multiply(r);
}
}
} else if(r instanceof Multiply) {
Multiply mr = (Multiply)r;
if(mr.isCoeffMulSymbol()) {
if(Utils.symCompare(mr.getSymbolTerm(), l)) {
Expr coeff = mr.getCoeffTerm().add(Symbol.C1);
return coeff.multiply(l);
}
}
}
if(Utils.symCompare(l, r)) {
return Symbol.C2.multiply(l).incSimplifyOps(1);
}
return new Add(l, r).setAsSimplified();
}
public static Expr simplifiedIns(Expr l, Expr r) {
//return shallowSimplifiedIns(l,r);
return Utils.flattenSortAndSimplify(shallowSimplifiedIns(l,r));
}
@Override
public Expr subs(Expr from, Expr to) {
if(Utils.symCompare(this, from))
return to;
Expr sl = arg1.subs(from, to);
Expr sr = arg2.subs(from, to);
if(sl == arg1 && sr == arg2)
return this;
return new Add(sl, sr);
}
@Override
public Expr diff(Expr expr) {
return arg1.diff(expr).add(arg2.diff(expr));
}
@Override
public Expr simplify() {
if(this.isSimplified)
return this;
return simplifiedIns(arg1, arg2);
}
public void flattenAdd(List<Expr> outList) {
if(device != null) {
outList.add(this);
} else {
arg1.flattenAdd(outList);
arg2.flattenAdd(outList);
}
}
@Override
public void flattenMultiply(List<Expr> outList) {
outList.add(this);
}
public boolean symEquals(Expr other) {
//return Utils.flattenSortAndCompare(this, other);
return Utils.flattenSortAndCompare(this.simplify(), other.simplify());
}
@Override
public InstructionHandle bytecodeGen(String clsName, MethodGen mg,
ConstantPoolGen cp, InstructionFactory factory,
InstructionList il, Map<String, Integer> argsMap, int argsStartPos,
Map<Expr, Integer> funcRefsMap) {
InstructionHandle startPos = arg1.bytecodeGen(clsName, mg, cp, factory, il, argsMap, argsStartPos, funcRefsMap);
if(arg1.getType() == TYPE.MATRIX && arg2.getType() == TYPE.MATRIX) {
arg2.bytecodeGen(clsName, mg, cp, factory, il, argsMap, argsStartPos, funcRefsMap);
il.append(factory.createInvoke("Jama.Matrix", "plus",
new ObjectType("Jama.Matrix"), new Type[] { new ObjectType("Jama.Matrix") },
Constants.INVOKEVIRTUAL));
return startPos;
} else if(arg1.getType() == TYPE.VECTOR && arg2.getType() == TYPE.VECTOR) {
arg2.bytecodeGen(clsName, mg, cp, factory, il, argsMap, argsStartPos, funcRefsMap);
il.append(factory.createInvoke("Jama.Matrix", "plus",
new ObjectType("Jama.Matrix"), new Type[] { new ObjectType("Jama.Matrix") },
Constants.INVOKEVIRTUAL));
return startPos;
}
TYPE ty = Utils.getConvertedType(arg1.getType(), arg2.getType());
BytecodeUtils.typeCast(il, arg1.getType(), ty);
arg2.bytecodeGen(clsName, mg, cp, factory, il, argsMap, argsStartPos, funcRefsMap);
BytecodeUtils.typeCast(il, arg2.getType(), ty);
if(ty == TYPE.DOUBLE)
il.append(DADD);
else if(ty == TYPE.INT)
il.append(IADD);
else if(ty == TYPE.LONG)
il.append(LADD);
else if(ty == TYPE.FLOAT)
il.append(FADD);
else
il.append(IADD);
return startPos;
}
@Override
public void updateLabel() {
label = arg1 + " + " + arg2;
sortKey = arg1.getSortKey()+arg2.getSortKey();
}
@Override
public TypeInfo getTypeInfo() {
return arg1.getTypeInfo();
}
}