init

node_modules/es-abstract/helpers/assertRecord.js

@@ -0,0 +1,32 @@
+'use strict';
+
+// TODO, semver-major: delete this
+
+var $TypeError = require('es-errors/type');
+var $SyntaxError = require('es-errors/syntax');
+
+var isMatchRecord = require('./records/match-record');
+var isPropertyDescriptor = require('./records/property-descriptor');
+var isIteratorRecord = require('./records/iterator-record-2023');
+var isPromiseCapabilityRecord = require('./records/promise-capability-record');
+var isAsyncGeneratorRequestRecord = require('./records/async-generator-request-record');
+var isRegExpRecord = require('./records/regexp-record');
+
+var predicates = {
+	'Property Descriptor': isPropertyDescriptor,
+	'Match Record': isMatchRecord,
+	'Iterator Record': isIteratorRecord,
+	'PromiseCapability Record': isPromiseCapabilityRecord,
+	'AsyncGeneratorRequest Record': isAsyncGeneratorRequestRecord,
+	'RegExp Record': isRegExpRecord
+};
+
+module.exports = function assertRecord(Type, recordType, argumentName, value) {
+	var predicate = predicates[recordType];
+	if (typeof predicate !== 'function') {
+		throw new $SyntaxError('unknown record type: ' + recordType);
+	}
+	if (!predicate(value)) {
+		throw new $TypeError(argumentName + ' must be a ' + recordType);
+	}
+};

node_modules/es-abstract/helpers/records/iterator-record-2023.js

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+'use strict';
+
+var isIteratorRecordNew = require('./iterator-record');
+
+module.exports = function isIteratorRecord(value) {
+	return isIteratorRecordNew(value) && typeof value['[[NextMethod]]'] === 'function';
+};

node_modules/es-abstract/helpers/records/iterator-record.js

@@ -0,0 +1,12 @@
+'use strict';
+
+var hasOwn = require('hasown');
+
+module.exports = function isIteratorRecord(value) {
+	return !!value
+		&& typeof value === 'object'
+		&& hasOwn(value, '[[Iterator]]')
+		&& hasOwn(value, '[[NextMethod]]')
+		&& hasOwn(value, '[[Done]]')
+		&& typeof value['[[Done]]'] === 'boolean';
+};