Files
react-native-devtools-frontend/node_modules/es-abstract/2019/FlattenIntoArray.js
T
Tim van der Lippe 16aca394c5 Update ESLint and related packages
Major update breaking changes:
- ESLint 7.0.0 (https://eslint.org/docs/user-guide/migrating-to-7.0.0) now includes
.eslint.rc.js in its list, which is fine for us. Other changes are not applicable
for us.
- eslint-plugin-mocha (https://github.com/lo1tuma/eslint-plugin-mocha/blob/master/CHANGELOG.md#700-may-13-2020)
drops support for ESLint <7, but this CL updates to 7+. Other changes are
not applicable for us.

DISABLE_THIRD_PARTY_CHECK=Updating ESLint
R=petermarshall@chromium.org

Change-Id: I7760e084ef87f73a92f9ea4e075fb4c065047f5a
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2534873
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
2020-11-13 12:28:15 +00:00

59 lines
1.7 KiB
JavaScript

'use strict';
var GetIntrinsic = require('../GetIntrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
var Call = require('./Call');
var CreateDataPropertyOrThrow = require('./CreateDataPropertyOrThrow');
var Get = require('./Get');
var HasProperty = require('./HasProperty');
var IsArray = require('./IsArray');
var ToLength = require('./ToLength');
var ToString = require('./ToString');
// https://ecma-international.org/ecma-262/10.0/#sec-flattenintoarray
// eslint-disable-next-line max-params, max-statements
module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
var mapperFunction;
if (arguments.length > 5) {
mapperFunction = arguments[5];
}
var targetIndex = start;
var sourceIndex = 0;
while (sourceIndex < sourceLen) {
var P = ToString(sourceIndex);
var exists = HasProperty(source, P);
if (exists === true) {
var element = Get(source, P);
if (typeof mapperFunction !== 'undefined') {
if (arguments.length <= 6) {
throw new $TypeError('Assertion failed: thisArg is required when mapperFunction is provided');
}
element = Call(mapperFunction, arguments[6], [element, sourceIndex, source]);
}
var shouldFlatten = false;
if (depth > 0) {
shouldFlatten = IsArray(element);
}
if (shouldFlatten) {
var elementLen = ToLength(Get(element, 'length'));
targetIndex = FlattenIntoArray(target, element, elementLen, targetIndex, depth - 1);
} else {
if (targetIndex >= MAX_SAFE_INTEGER) {
throw new $TypeError('index too large');
}
CreateDataPropertyOrThrow(target, ToString(targetIndex), element);
targetIndex += 1;
}
}
sourceIndex += 1;
}
return targetIndex;
};