WarpPI/core/src/main/java/it/cavallium/warppi/math/parser/steps/AddImplicitMultiplications....

48 lines
1.4 KiB
Java

package it.cavallium.warppi.math.parser.steps;
import it.cavallium.warppi.math.Function;
import it.cavallium.warppi.math.MathContext;
import it.cavallium.warppi.math.functions.Multiplication;
import it.cavallium.warppi.math.parser.MathParserStep;
import it.cavallium.warppi.util.IntWrapper;
import it.unimi.dsi.fastutil.objects.ObjectArrayList;
public class AddImplicitMultiplications implements MathParserStep {
private final MathContext context;
public AddImplicitMultiplications(final MathContext context) {
this.context = context;
}
@Override
public boolean eval(final IntWrapper curIndex, final Function lastFunction, final Function currentFunction,
final ObjectArrayList<Function> functionsList) {
if (currentFunction instanceof Function) {
if (lastFunction instanceof Function) {
functionsList.set(curIndex.i, new Multiplication(context, currentFunction, lastFunction));
functionsList.remove(curIndex.i + 1);
return true;
}
} else if (currentFunction instanceof Function) {
if (lastFunction instanceof Function) {
functionsList.set(curIndex.i, new Multiplication(context, currentFunction, lastFunction));
functionsList.remove(curIndex.i + 1);
return true;
}
}
return false;
}
@Override
public boolean requiresReversedIteration() {
return true;
}
@Override
public String getStepName() {
return "Add implicit multiplications before and after Functions";
}
}