PositionCheckNode(
ElementAccessMode mode,
RType containerType,
Object positionValue,
int dimensionIndex,
int numDimensions,
boolean exact,
boolean replace) {
this.positionClass = positionValue.getClass();
this.dimensionIndex = dimensionIndex;
this.numDimensions = numDimensions;
this.replace = replace;
this.containerType = containerType;
this.castNode = PositionCastNode.create(mode, replace);
if (positionValue instanceof String || positionValue instanceof RAbstractStringVector) {
boolean useNAForNotFound = !replace && isListLike(containerType) && mode.isSubscript();
characterLookup =
new PositionCharacterLookupNode(
mode, numDimensions, dimensionIndex, useNAForNotFound, exact);
}
}
public final Object execute(
PositionProfile profile,
RAbstractContainer vector,
int[] vectorDimensions,
int vectorLength,
Object position) {
Object castPosition = castNode.execute(positionClass.cast(position));
int dimensionLength;
if (numDimensions == 1) {
dimensionLength = vectorLength;
} else {
assert vectorDimensions != null;
assert vectorDimensions.length == numDimensions;
dimensionLength = vectorDimensions[dimensionIndex];
}
if (characterLookup != null) {
castPosition =
characterLookup.execute(vector, (RAbstractStringVector) castPosition, dimensionLength);
}
RTypedValue positionVector = (RTypedValue) profilePosition(castPosition);
int positionLength;
if (positionVector instanceof RMissing) {
positionLength = -1;
} else {
positionLength =
positionLengthProfile.profile(((RAbstractVector) positionVector).getLength());
}
assert isValidCastedType(positionVector)
: "result type of a position cast node must be integer or logical";
return execute(profile, dimensionLength, positionVector, positionLength);
}