apache-arrow/vector/index.mjs.map

Apache Arrow columnar in-memory format

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Licensed to the Apache Software Foundation (ASF) under one\n// or more contributor license agreements.  See the NOTICE file\n// distributed with this work for additional information\n// regarding copyright ownership.  The ASF licenses this file\n// to you under the Apache License, Version 2.0 (the\n// \"License\"); you may not use this file except in compliance\n// with the License.  You may obtain a copy of the License at\n//\n//   http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing,\n// software distributed under the License is distributed on an\n// \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY\n// KIND, either express or implied.  See the License for the\n// specific language governing permissions and limitations\n// under the License.\n\nexport { Vector } from '../vector';\nexport { BaseVector } from './base';\nexport { BinaryVector } from './binary';\nexport { BoolVector } from './bool';\nexport { Chunked } from './chunked';\nexport { DateVector, DateDayVector, DateMillisecondVector } from './date';\nexport { DecimalVector } from './decimal';\nexport { DictionaryVector } from './dictionary';\nexport { FixedSizeBinaryVector } from './fixedsizebinary';\nexport { FixedSizeListVector } from './fixedsizelist';\nexport { FloatVector, Float16Vector, Float32Vector, Float64Vector } from './float';\nexport { IntervalVector, IntervalDayTimeVector, IntervalYearMonthVector } from './interval';\nexport { IntVector, Int8Vector, Int16Vector, Int32Vector, Int64Vector, Uint8Vector, Uint16Vector, Uint32Vector, Uint64Vector } from './int';\nexport { ListVector } from './list';\nexport { MapVector } from './map';\nexport { NullVector } from './null';\nexport { StructVector } from './struct';\nexport { TimestampVector, TimestampSecondVector, TimestampMillisecondVector, TimestampMicrosecondVector, TimestampNanosecondVector } from './timestamp';\nexport { TimeVector, TimeSecondVector, TimeMillisecondVector, TimeMicrosecondVector, TimeNanosecondVector } from './time';\nexport { UnionVector, DenseUnionVector, SparseUnionVector } from './union';\nexport { Utf8Vector } from './utf8';\nexport { MapRow, StructRow } from './row';\n\nimport * as fn from '../util/fn';\nimport { Data } from '../data';\nimport { Type } from '../enum';\nimport { Vector } from '../vector';\nimport { DataType } from '../type';\nimport { Chunked } from './chunked';\nimport { BaseVector } from './base';\nimport { setBool } from '../util/bit';\nimport { isIterable, isAsyncIterable } from '../util/compat';\nimport { Builder, IterableBuilderOptions } from '../builder';\nimport { VectorType as V, VectorCtorArgs } from '../interfaces';\nimport { instance as getVisitor } from '../visitor/get';\nimport { instance as setVisitor } from '../visitor/set';\nimport { instance as indexOfVisitor } from '../visitor/indexof';\nimport { instance as toArrayVisitor } from '../visitor/toarray';\nimport { instance as iteratorVisitor } from '../visitor/iterator';\nimport { instance as byteWidthVisitor } from '../visitor/bytewidth';\nimport { instance as getVectorConstructor } from '../visitor/vectorctor';\n\ndeclare module '../vector' {\n    namespace Vector {\n        export { newVector as new };\n        export { vectorFrom as from };\n    }\n}\n\ndeclare module './base' {\n    namespace BaseVector {\n        export { vectorFrom as from };\n    }\n    interface BaseVector<T extends DataType> {\n        get(index: number): T['TValue'] | null;\n        set(index: number, value: T['TValue'] | null): void;\n        indexOf(value: T['TValue'] | null, fromIndex?: number): number;\n        toArray(): T['TArray'];\n        getByteWidth(): number;\n        [Symbol.iterator](): IterableIterator<T['TValue'] | null>;\n    }\n}\n\n/** @nocollapse */\nVector.new = newVector;\n\n/** @nocollapse */\nVector.from = vectorFrom;\n\n/** @ignore */\nfunction newVector<T extends DataType>(data: Data<T>, ...args: VectorCtorArgs<V<T>>): V<T> {\n    return new (getVectorConstructor.getVisitFn<T>(data)())(data, ...args) as V<T>;\n}\n\n/** @ignore */\nexport interface VectorBuilderOptions<T extends DataType, TNull = any> extends IterableBuilderOptions<T, TNull> { values: Iterable<T['TValue'] | TNull>; }\n/** @ignore */\nexport interface VectorBuilderOptionsAsync<T extends DataType, TNull = any> extends IterableBuilderOptions<T, TNull> { values: AsyncIterable<T['TValue'] | TNull>; }\n\n/** @ignore */\nexport function vectorFromValuesWithType<T extends DataType, TNull = any>(newDataType: () => T, input: Iterable<T['TValue'] | TNull> | AsyncIterable<T['TValue'] | TNull> | VectorBuilderOptions<T, TNull> | VectorBuilderOptionsAsync<T, TNull>) {\n    if (isIterable(input)) {\n        return Vector.from({ 'nullValues': [null, undefined], type: newDataType(), 'values': input }) as V<T>;\n    } else if (isAsyncIterable(input)) {\n        return Vector.from({ 'nullValues': [null, undefined], type: newDataType(), 'values': input }) as Promise<V<T>>;\n    }\n    const {\n        'values': values = [],\n        'type': type = newDataType(),\n        'nullValues': nullValues = [null, undefined],\n    } = { ...input };\n    return isIterable(values)\n        ? Vector.from({ nullValues, ...input, type } as VectorBuilderOptions<T, TNull>)\n        : Vector.from({ nullValues, ...input, type } as VectorBuilderOptionsAsync<T, TNull>);\n}\n\n/** @ignore */\nfunction vectorFrom<T extends DataType = any, TNull = any>(input: VectorBuilderOptions<T, TNull>): Vector<T>;\nfunction vectorFrom<T extends DataType = any, TNull = any>(input: VectorBuilderOptionsAsync<T, TNull>): Promise<Vector<T>>;\nfunction vectorFrom<T extends DataType = any, TNull = any>(input: VectorBuilderOptions<T, TNull> | VectorBuilderOptionsAsync<T, TNull>) {\n    const { 'values': values = [], ...options } = { 'nullValues': [null, undefined], ...input } as VectorBuilderOptions<T, TNull> | VectorBuilderOptionsAsync<T, TNull>;\n    if (isIterable<T['TValue'] | TNull>(values)) {\n        const chunks = [...Builder.throughIterable(options)(values)];\n        return (chunks.length === 1 ? chunks[0] : Chunked.concat<T>(chunks)) as Vector<T>;\n    }\n    return (async (chunks: V<T>[]) => {\n        const transform = Builder.throughAsyncIterable(options);\n        for await (const chunk of transform(values)) {\n            chunks.push(chunk);\n        }\n        return (chunks.length === 1 ? chunks[0] : Chunked.concat<T>(chunks)) as Vector<T>;\n    })([]);\n}\n\n//\n// We provide the following method implementations for code navigability purposes only.\n// They're overridden at runtime below with the specific Visitor implementation for each type,\n// short-circuiting the usual Visitor traversal and reducing intermediate lookups and calls.\n// This comment is here to remind you to not set breakpoints in these function bodies, or to inform\n// you why the breakpoints you have already set are not being triggered. Have a great day!\n//\n\nBaseVector.prototype.get = function baseVectorGet<T extends DataType>(this: BaseVector<T>, index: number): T['TValue'] | null {\n    return getVisitor.visit(this, index);\n};\n\nBaseVector.prototype.set = function baseVectorSet<T extends DataType>(this: BaseVector<T>, index: number, value: T['TValue'] | null): void {\n    return setVisitor.visit(this, index, value);\n};\n\nBaseVector.prototype.indexOf = function baseVectorIndexOf<T extends DataType>(this: BaseVector<T>, value: T['TValue'] | null, fromIndex?: number): number {\n    return indexOfVisitor.visit(this, value, fromIndex);\n};\n\nBaseVector.prototype.toArray = function baseVectorToArray<T extends DataType>(this: BaseVector<T>): T['TArray'] {\n    return toArrayVisitor.visit(this);\n};\n\nBaseVector.prototype.getByteWidth = function baseVectorGetByteWidth<T extends DataType>(this: BaseVector<T>): number {\n    return byteWidthVisitor.visit(this.type);\n};\n\nBaseVector.prototype[Symbol.iterator] = function baseVectorSymbolIterator<T extends DataType>(this: BaseVector<T>): IterableIterator<T['TValue'] | null> {\n    return iteratorVisitor.visit(this);\n};\n\n(BaseVector.prototype as any)._bindDataAccessors = bindBaseVectorDataAccessors;\n\n// Perf: bind and assign the operator Visitor methods to each of the Vector subclasses for each Type\n(Object.keys(Type) as any[])\n    .map((T: any) => Type[T] as any)\n    .filter((T: any): T is Type => typeof T === 'number')\n    .filter((typeId) => typeId !== Type.NONE)\n    .forEach((typeId) => {\n        const VectorCtor = getVectorConstructor.visit(typeId);\n        VectorCtor.prototype['get'] = fn.partial1(getVisitor.getVisitFn(typeId));\n        VectorCtor.prototype['set'] = fn.partial2(setVisitor.getVisitFn(typeId));\n        VectorCtor.prototype['indexOf'] = fn.partial2(indexOfVisitor.getVisitFn(typeId));\n        VectorCtor.prototype['toArray'] = fn.partial0(toArrayVisitor.getVisitFn(typeId));\n        VectorCtor.prototype['getByteWidth'] = partialType0(byteWidthVisitor.getVisitFn(typeId));\n        VectorCtor.prototype[Symbol.iterator] = fn.partial0(iteratorVisitor.getVisitFn(typeId));\n    });\n\n/** @ignore */\nfunction partialType0<T extends Vector>(visit: (node: T['type']) => any) {\n    return function(this: T) { return visit(this.type); };\n}\n\n/** @ignore */\nfunction wrapNullableGet<T extends DataType, V extends Vector<T>, F extends (i: number) => any>(fn: F): (...args: Parameters<F>) => ReturnType<F> {\n    return function(this: V, i: number) { return this.isValid(i) ? fn.call(this, i) : null; };\n}\n\n/** @ignore */\nfunction wrapNullableSet<T extends DataType, V extends BaseVector<T>, F extends (i: number, a: any) => void>(fn: F): (...args: Parameters<F>) => void {\n    return function(this: V, i: number, a: any) {\n        if (setBool(this.nullBitmap, this.offset + i, !(a === null || a === undefined))) {\n            fn.call(this, i, a);\n        }\n    };\n}\n\n/** @ignore */\nfunction bindBaseVectorDataAccessors<T extends DataType>(this: BaseVector<T>) {\n    const nullBitmap = this.nullBitmap;\n    if (nullBitmap && nullBitmap.byteLength > 0) {\n        this.get = wrapNullableGet(this.get);\n        this.set = wrapNullableSet(this.set);\n    }\n}\n"]}