apache-arrow
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Apache Arrow columnar in-memory format
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{"version":3,"sources":["builder/list.ts"],"names":[],"mappings":"AAAA,6DAA6D;AAC7D,+DAA+D;AAC/D,wDAAwD;AACxD,6DAA6D;AAC7D,oDAAoD;AACpD,6DAA6D;AAC7D,6DAA6D;AAC7D,EAAE;AACF,+CAA+C;AAC/C,EAAE;AACF,6DAA6D;AAC7D,8DAA8D;AAC9D,yDAAyD;AACzD,4DAA4D;AAC5D,0DAA0D;AAC1D,qBAAqB;AAErB,OAAO,EAAE,GAAG,EAAE,MAAM,OAAO,CAAC;AAC5B,OAAO,EAAE,KAAK,EAAE,MAAM,WAAW,CAAC;AAClC,OAAO,EAAY,IAAI,EAAE,MAAM,SAAS,CAAC;AACzC,OAAO,EAAE,oBAAoB,EAAE,MAAM,UAAU,CAAC;AAChD,OAAO,EAA2B,oBAAoB,EAAE,MAAM,YAAY,CAAC;AAE3E,cAAc;AACd,MAAM,OAAO,WAAmD,SAAQ,oBAAoC;IAGxG,YAAY,IAAoC;QAC5C,KAAK,CAAC,IAAI,CAAC,CAAC;QAHN,SAAI,GAAG,IAAI,GAAG,EAAY,CAAC;QAIjC,IAAI,CAAC,QAAQ,GAAG,IAAI,oBAAoB,EAAE,CAAC;IAC/C,CAAC;IACM,QAAQ,CAAC,KAAiB,EAAE,IAAI,GAAG,GAAG;QACzC,IAAI,IAAI,CAAC,WAAW,GAAG,CAAC,EAAE;YACtB,MAAM,IAAI,KAAK,CAAC,sCAAsC,CAAC,CAAC;SAC3D;QACD,IAAI,CAAC,QAAQ,CAAC,IAAI,CAAC,WAAW,CAAC,GAAG,KAAK,CAAC;QACxC,IAAI,CAAC,IAAI,GAAG,IAAI,IAAI,CAAC,IAAI,KAAK,CAAC,IAAI,EAAE,KAAK,CAAC,IAAI,EAAE,IAAI,CAAC,CAAC,CAAC;QACxD,OAAO,IAAI,CAAC,WAAW,GAAG,CAAC,CAAC;IAChC,CAAC;IACM,KAAK;QACR,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,CAAC;QAClB,OAAO,KAAK,CAAC,KAAK,EAAE,CAAC;IACzB,CAAC;IACS,aAAa,CAAC,OAA6C;QACjE,MAAM,GAAG,GAAG,IAAI,CAAC,IAAI,CAAC;QACtB,MAAM,OAAO,GAAG,IAAI,CAAC,QAAQ,CAAC;QAC9B,MAAM,QAAQ,GAAG,IAAI,CAAC,SAAS,CAAC;QAChC,IAAI,KAAK,GAAG,CAAC,EAAE,KAA6B,CAAC;QAC7C,KAAK,CAAC,KAAK,EAAE,KAAK,CAAC,IAAI,OAAO,EAAE;YAC5B,IAAI,KAAK,KAAK,SAAS,EAAE;gBACrB,OAAO,CAAC,GAAG,CAAC,KAAK,EAAE,CAAC,CAAC,CAAC;aACzB;iBAAM;gBACH,OAAO,CAAC,GAAG,CAAC,KAAK,EAAE,KAAK,CAAC,MAAM,CAAC,CAAC;gBACjC,QAAQ,CAAC,IAAI,EAAE,KAAK,EAAE,GAAG,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC,CAAC;aAC1C;SACJ;IACL,CAAC;CACJ","file":"list.js","sourcesContent":["// 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\nimport { Run } from './run';\nimport { Field } from '../schema';\nimport { DataType, List } from '../type';\nimport { OffsetsBufferBuilder } from './buffer';\nimport { Builder, BuilderOptions, VariableWidthBuilder } from '../builder';\n\n/** @ignore */\nexport class ListBuilder<T extends DataType = any, TNull = any> extends VariableWidthBuilder<List<T>, TNull> {\n protected _run = new Run<T, TNull>();\n protected _offsets: OffsetsBufferBuilder;\n constructor(opts: BuilderOptions<List<T>, TNull>) {\n super(opts);\n this._offsets = new OffsetsBufferBuilder();\n }\n public addChild(child: Builder<T>, name = '0') {\n if (this.numChildren > 0) {\n throw new Error('ListBuilder can only have one child.');\n }\n this.children[this.numChildren] = child;\n this.type = new List(new Field(name, child.type, true));\n return this.numChildren - 1;\n }\n public clear() {\n this._run.clear();\n return super.clear();\n }\n protected _flushPending(pending: Map<number, T['TValue'] | undefined>) {\n const run = this._run;\n const offsets = this._offsets;\n const setValue = this._setValue;\n let index = 0, value: Uint8Array | undefined;\n for ([index, value] of pending) {\n if (value === undefined) {\n offsets.set(index, 0);\n } else {\n offsets.set(index, value.length);\n setValue(this, index, run.bind(value));\n }\n }\n }\n}\n"]}