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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\nimport { Data } from '../data';\nimport { Type } from '../enum';\nimport { DataType } from '../type';\nimport { Chunked } from './chunked';\nimport { clampRange } from '../util/vector';\nimport { VectorType as V } from '../interfaces';\nimport { AbstractVector, Vector, Clonable, Sliceable, Applicative } from '../vector';\n\n/** @ignore */\nexport interface BaseVector<T extends DataType = any> extends Clonable<V<T>>, Sliceable<V<T>>, Applicative<T, Chunked<T>> {\n slice(begin?: number, end?: number): V<T>;\n concat(...others: Vector<T>[]): Chunked<T>;\n clone<R extends DataType = T>(data: Data<R>, children?: Vector<R>[]): V<R>;\n}\n\n/** @ignore */\nexport abstract class BaseVector<T extends DataType = any> extends AbstractVector<T>\n implements Clonable<V<T>>, Sliceable<V<T>>, Applicative<T, Chunked<T>> {\n\n protected _children?: Vector[];\n\n constructor(data: Data<T>, children?: Vector[]) {\n super();\n this._children = children;\n this.numChildren = data.childData.length;\n this._bindDataAccessors(this.data = data);\n }\n\n public readonly data: Data<T>;\n public readonly numChildren: number;\n\n public get type() { return this.data.type; }\n public get typeId() { return this.data.typeId; }\n public get length() { return this.data.length; }\n public get offset() { return this.data.offset; }\n public get stride() { return this.data.stride; }\n public get nullCount() { return this.data.nullCount; }\n public get byteLength() { return this.data.byteLength; }\n public get VectorName() { return `${Type[this.typeId]}Vector`; }\n\n public get ArrayType(): T['ArrayType'] { return this.type.ArrayType; }\n\n public get values() { return this.data.values; }\n public get typeIds() { return this.data.typeIds; }\n public get nullBitmap() { return this.data.nullBitmap; }\n public get valueOffsets() { return this.data.valueOffsets; }\n\n public get [Symbol.toStringTag]() { return `${this.VectorName}<${this.type[Symbol.toStringTag]}>`; }\n\n public clone<R extends DataType = T>(data: Data<R>, children = this._children) {\n return Vector.new<R>(data, children) as any;\n }\n\n public concat(...others: Vector<T>[]) {\n return Chunked.concat<T>(this, ...others);\n }\n\n public slice(begin?: number, end?: number) {\n // Adjust args similar to Array.prototype.slice. Normalize begin/end to\n // clamp between 0 and length, and wrap around on negative indices, e.g.\n // slice(-1, 5) or slice(5, -1)\n return clampRange(this, begin, end, this._sliceInternal);\n }\n\n public isValid(index: number): boolean {\n if (this.nullCount > 0) {\n const idx = this.offset + index;\n const val = this.nullBitmap[idx >> 3];\n const mask = (val & (1 << (idx % 8)));\n return mask !== 0;\n }\n return true;\n }\n\n public getChildAt<R extends DataType = any>(index: number): Vector<R> | null {\n return index < 0 || index >= this.numChildren ? null : (\n (this._children || (this._children = []))[index] ||\n (this._children[index] = Vector.new<R>(this.data.childData[index] as Data<R>))\n ) as Vector<R>;\n }\n\n public toJSON(): any { return [...this]; }\n\n protected _sliceInternal(self: this, begin: number, end: number) {\n return self.clone(self.data.slice(begin, end - begin), null!);\n }\n\n // @ts-ignore\n protected _bindDataAccessors(data: Data<T>) {\n // Implementation in src/vectors/index.ts due to circular dependency/packaging shenanigans\n }\n}\n\n(BaseVector.prototype as any)[Symbol.isConcatSpreadable] = true;\n"]} |