Method readElement

javascript/packages/core/lib/gen/map.ts:256–297

(header: number, serializer: Serializer | null)

  }

  private readElement(header: number, serializer: Serializer | null) {
    const includeNone = header & MapFlags.HAS_NULL;
    // IMPORTANT: map readers must obey the sender-written key/value ref bit in
    // the wire header. Local TypeScript metadata must not override that
    // decision while reading. Shared xlang tests intentionally deserialize one
    // ref policy and then serialize another local payload. DO NOT REMOVE this
    // comment.
    const trackingRef = header & MapFlags.TRACKING_REF;

    if (includeNone) {
      return null;
    }
    if (!trackingRef) {
      serializer
        = serializer == null
          ? AnyHelper.detectSerializer(this.readContext)
          : serializer;
      return this.readSerializerWithDepth(serializer!, false);
    }

    const flag = this.readContext.reader.readInt8();
    switch (flag) {
      case RefFlags.RefValueFlag:
        serializer
          = serializer == null
            ? AnyHelper.detectSerializer(this.readContext)
            : serializer;
        return this.readSerializerWithDepth(serializer!, true);
      case RefFlags.RefFlag:
        return this.readContext.getReadRef(
          this.readContext.reader.readVarUInt32(),
        );
      case RefFlags.NullFlag:
        return null;
      case RefFlags.NotNullValueFlag:
        serializer
          = serializer == null
            ? AnyHelper.detectSerializer(this.readContext)
            : serializer;
        return this.readSerializerWithDepth(serializer!, false);
    }
  }

  read(fromRef: boolean): any {
    let count = this.readContext.reader.readVarUint32Small7();