igv_component/node_modules/apache-arrow/visitor/indexof.mjs

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
import { Visitor } from '../visitor.mjs';
import { instance as getVisitor } from './get.mjs';
import { getBool, BitIterator } from '../util/bit.mjs';
import { createElementComparator } from '../util/vector.mjs';
/** @ignore */
export class IndexOfVisitor extends Visitor {
}
/** @ignore */
function nullIndexOf(data, searchElement) {
    // if you're looking for nulls and the vector isn't empty, we've got 'em!
    return searchElement === null && data.length > 0 ? 0 : -1;
}
/** @ignore */
function indexOfNull(data, fromIndex) {
    const { nullBitmap } = data;
    if (!nullBitmap || data.nullCount <= 0) {
        return -1;
    }
    let i = 0;
    for (const isValid of new BitIterator(nullBitmap, data.offset + (fromIndex || 0), data.length, nullBitmap, getBool)) {
        if (!isValid) {
            return i;
        }
        ++i;
    }
    return -1;
}
/** @ignore */
function indexOfValue(data, searchElement, fromIndex) {
    if (searchElement === undefined) {
        return -1;
    }
    if (searchElement === null) {
        return indexOfNull(data, fromIndex);
    }
    const get = getVisitor.getVisitFn(data);
    const compare = createElementComparator(searchElement);
    for (let i = (fromIndex || 0) - 1, n = data.length; ++i < n;) {
        if (compare(get(data, i))) {
            return i;
        }
    }
    return -1;
}
/** @ignore */
function indexOfUnion(data, searchElement, fromIndex) {
    // Unions are special -- they do have a nullBitmap, but so can their children.
    // If the searchElement is null, we don't know whether it came from the Union's
    // bitmap or one of its childrens'. So we don't interrogate the Union's bitmap,
    // since that will report the wrong index if a child has a null before the Union.
    const get = getVisitor.getVisitFn(data);
    const compare = createElementComparator(searchElement);
    for (let i = (fromIndex || 0) - 1, n = data.length; ++i < n;) {
        if (compare(get(data, i))) {
            return i;
        }
    }
    return -1;
}
IndexOfVisitor.prototype.visitNull = nullIndexOf;
IndexOfVisitor.prototype.visitBool = indexOfValue;
IndexOfVisitor.prototype.visitInt = indexOfValue;
IndexOfVisitor.prototype.visitInt8 = indexOfValue;
IndexOfVisitor.prototype.visitInt16 = indexOfValue;
IndexOfVisitor.prototype.visitInt32 = indexOfValue;
IndexOfVisitor.prototype.visitInt64 = indexOfValue;
IndexOfVisitor.prototype.visitUint8 = indexOfValue;
IndexOfVisitor.prototype.visitUint16 = indexOfValue;
IndexOfVisitor.prototype.visitUint32 = indexOfValue;
IndexOfVisitor.prototype.visitUint64 = indexOfValue;
IndexOfVisitor.prototype.visitFloat = indexOfValue;
IndexOfVisitor.prototype.visitFloat16 = indexOfValue;
IndexOfVisitor.prototype.visitFloat32 = indexOfValue;
IndexOfVisitor.prototype.visitFloat64 = indexOfValue;
IndexOfVisitor.prototype.visitUtf8 = indexOfValue;
IndexOfVisitor.prototype.visitBinary = indexOfValue;
IndexOfVisitor.prototype.visitFixedSizeBinary = indexOfValue;
IndexOfVisitor.prototype.visitDate = indexOfValue;
IndexOfVisitor.prototype.visitDateDay = indexOfValue;
IndexOfVisitor.prototype.visitDateMillisecond = indexOfValue;
IndexOfVisitor.prototype.visitTimestamp = indexOfValue;
IndexOfVisitor.prototype.visitTimestampSecond = indexOfValue;
IndexOfVisitor.prototype.visitTimestampMillisecond = indexOfValue;
IndexOfVisitor.prototype.visitTimestampMicrosecond = indexOfValue;
IndexOfVisitor.prototype.visitTimestampNanosecond = indexOfValue;
IndexOfVisitor.prototype.visitTime = indexOfValue;
IndexOfVisitor.prototype.visitTimeSecond = indexOfValue;
IndexOfVisitor.prototype.visitTimeMillisecond = indexOfValue;
IndexOfVisitor.prototype.visitTimeMicrosecond = indexOfValue;
IndexOfVisitor.prototype.visitTimeNanosecond = indexOfValue;
IndexOfVisitor.prototype.visitDecimal = indexOfValue;
IndexOfVisitor.prototype.visitList = indexOfValue;
IndexOfVisitor.prototype.visitStruct = indexOfValue;
IndexOfVisitor.prototype.visitUnion = indexOfValue;
IndexOfVisitor.prototype.visitDenseUnion = indexOfUnion;
IndexOfVisitor.prototype.visitSparseUnion = indexOfUnion;
IndexOfVisitor.prototype.visitDictionary = indexOfValue;
IndexOfVisitor.prototype.visitInterval = indexOfValue;
IndexOfVisitor.prototype.visitIntervalDayTime = indexOfValue;
IndexOfVisitor.prototype.visitIntervalYearMonth = indexOfValue;
IndexOfVisitor.prototype.visitFixedSizeList = indexOfValue;
IndexOfVisitor.prototype.visitMap = indexOfValue;
/** @ignore */
export const instance = new IndexOfVisitor();

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