@brimdata/zealot/src/zed/types/type-array.ts

The Javascript Client for Zed Lakes

/* eslint-disable @typescript-eslint/no-array-constructor */
import * as zjson from "../../zjson"
import {DecodeStream} from "../decode-stream"
import {EncodeStream} from "../encode-stream"
import {isNull} from "../utils/is-null"
import {Array} from "../values/array"
import {Type} from "./types"

export class TypeArray implements Type {
  id?: number | string
  kind = "array"
  type: Type

  constructor(type: Type) {
    this.type = type
  }

  static stringify(type: Type) {
    return `[${type.toString()}]`
  }

  create(values: zjson.ArrayValue | null, stream: DecodeStream) {
    return new Array(
      this,
      isNull(values)
        ? null
        : values.map((value) => this.type.create(value, stream))
    )
  }

  serialize(stream: EncodeStream): zjson.NoId<zjson.ArrayType> {
    return {
      kind: "array",
      type: stream.encodeType(this.type),
    }
  }

  toString() {
    return "[" + this.type.toString() + "]"
  }
}