20352515932

Committed 18 Dec 2025 09:56PM UTC coverage: 35.115% (-28.4%) from 63.485%

Build # 20352515932

Build Type

push

github

Committed by

web-flow

Commit Message

feat(loader-utils): Export is-type helpers (#3258)

Coverage Stats

1188 of 1998 branches covered (59.46%)

Branch coverage included in aggregate %.

147 of 211 new or added lines in 13 files covered. (69.67%)

30011 existing lines in 424 files now uncovered.

37457 of 108056 relevant lines covered (34.66%)

0.79 hits per line

Source File
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31.94

/modules/json/src/lib/encoder-utils/encode-table-row.ts

// loaders.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
// Copyright 2022 Foursquare Labs, Inc.

import type {Feature, Table} from '@loaders.gl/schema';
import {getTableRowAsObject} from '@loaders.gl/schema-utils';
import {getRowPropertyObject} from './encode-utils';
import {Utf8ArrayBufferEncoder} from './utf8-encoder';

type Row = {[key: string]: unknown};

// Helpers

/**
 * Encode a row. Currently this ignores properties in the geometry column.
 */
export function encodeTableRow(
  table: Table,
  rowIndex: number,
  geometryColumnIndex: number,
  utf8Encoder: Utf8ArrayBufferEncoder
): void {
  const row = getTableRowAsObject(table, rowIndex);
  if (!row) return;
  const featureWithProperties = getFeatureFromRow(table, row, geometryColumnIndex);
  const featureString = JSON.stringify(featureWithProperties);
  utf8Encoder.push(featureString);
}

/**
 * Encode a row as a Feature. Currently this ignores properties objects in the geometry column.
 */
function getFeatureFromRow(table: Table, row: Row, geometryColumnIndex: number): Feature {
  // Extract non-feature/geometry properties
  const properties = getRowPropertyObject(table, row, [geometryColumnIndex]);

  // Extract geometry feature
  const columnName = table.schema?.fields[geometryColumnIndex].name;
  let featureOrGeometry =
    columnName && (row[columnName] as {[key: string]: unknown} | string | null | undefined);

  // GeoJSON support null geometries
  if (!featureOrGeometry) {
    // @ts-ignore Feature type does not support null geometries
    return {type: 'Feature', geometry: null, properties};
  }

  // Support string geometries?
  // TODO: This assumes GeoJSON strings, which may not be the correct format
  // (could be WKT, encoded WKB...)
  if (typeof featureOrGeometry === 'string') {
    try {
      featureOrGeometry = JSON.parse(featureOrGeometry);
    } catch (err) {
      throw new Error('Invalid string geometry');
    }
  }

  if (typeof featureOrGeometry !== 'object' || typeof featureOrGeometry?.type !== 'string') {
    throw new Error('invalid geometry column value');
  }

  if (featureOrGeometry?.type === 'Feature') {
    // @ts-ignore Feature type does not support null geometries
    return {...featureOrGeometry, properties};
  }

  // @ts-ignore Feature type does not support null geometries
  return {type: 'Feature', geometry: featureOrGeometry, properties};
}

1	// loaders.gl	1✔
2	// SPDX-License-Identifier: MIT	1✔
3	// Copyright (c) vis.gl contributors	1✔
4	// Copyright 2022 Foursquare Labs, Inc.	1✔
5		1✔
6	import type {Feature, Table} from '@loaders.gl/schema';	1✔
7	import {getTableRowAsObject} from '@loaders.gl/schema-utils';	1✔
8	import {getRowPropertyObject} from './encode-utils';	1✔
9	import {Utf8ArrayBufferEncoder} from './utf8-encoder';	1✔
10		1✔
11	type Row = {[key: string]: unknown};	1✔
12		1✔
13	// Helpers	1✔
14		1✔
15	/**	1✔
16	* Encode a row. Currently this ignores properties in the geometry column.	1✔
17	*/	1✔
18	export function encodeTableRow(	1✔
UNCOV 19	table: Table,	×
UNCOV 20	rowIndex: number,	×
UNCOV 21	geometryColumnIndex: number,	×
UNCOV 22	utf8Encoder: Utf8ArrayBufferEncoder	×
UNCOV 23	): void {	×
UNCOV 24	const row = getTableRowAsObject(table, rowIndex);	×
UNCOV 25	if (!row) return;	×
UNCOV 26	const featureWithProperties = getFeatureFromRow(table, row, geometryColumnIndex);	×
UNCOV 27	const featureString = JSON.stringify(featureWithProperties);	×
UNCOV 28	utf8Encoder.push(featureString);	×
UNCOV 29	}	×
30		1✔
31	/**	1✔
32	* Encode a row as a Feature. Currently this ignores properties objects in the geometry column.	1✔
33	*/	1✔
UNCOV 34	function getFeatureFromRow(table: Table, row: Row, geometryColumnIndex: number): Feature {	×
UNCOV 35	// Extract non-feature/geometry properties	×
UNCOV 36	const properties = getRowPropertyObject(table, row, [geometryColumnIndex]);	×
UNCOV 37		×
UNCOV 38	// Extract geometry feature	×
UNCOV 39	const columnName = table.schema?.fields[geometryColumnIndex].name;	×
UNCOV 40	let featureOrGeometry =	×
UNCOV 41	columnName && (row[columnName] as {[key: string]: unknown} \| string \| null \| undefined);	×
UNCOV 42		×
UNCOV 43	// GeoJSON support null geometries	×
UNCOV 44	if (!featureOrGeometry) {	×
UNCOV 45	// @ts-ignore Feature type does not support null geometries	×
UNCOV 46	return {type: 'Feature', geometry: null, properties};	×
UNCOV 47	}	×
UNCOV 48		×
UNCOV 49	// Support string geometries?	×
UNCOV 50	// TODO: This assumes GeoJSON strings, which may not be the correct format	×
UNCOV 51	// (could be WKT, encoded WKB...)	×
UNCOV 52	if (typeof featureOrGeometry === 'string') {	×
UNCOV 53	try {	×
UNCOV 54	featureOrGeometry = JSON.parse(featureOrGeometry);	×
UNCOV 55	} catch (err) {	×
56	throw new Error('Invalid string geometry');	×
57	}	×
UNCOV 58	}	×
UNCOV 59		×
UNCOV 60	if (typeof featureOrGeometry !== 'object' \|\| typeof featureOrGeometry?.type !== 'string') {	×
61	throw new Error('invalid geometry column value');	×
62	}	×
UNCOV 63		×
UNCOV 64	if (featureOrGeometry?.type === 'Feature') {	×
UNCOV 65	// @ts-ignore Feature type does not support null geometries	×
UNCOV 66	return {...featureOrGeometry, properties};	×
UNCOV 67	}	×
68		×
69	// @ts-ignore Feature type does not support null geometries	×
70	return {type: 'Feature', geometry: featureOrGeometry, properties};	×
71	}	×

visgl / loaders.gl / 20352515932

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