--- /dev/null
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+ value: true
+});
+exports.printIteratorEntries = printIteratorEntries;
+exports.printIteratorValues = printIteratorValues;
+exports.printListItems = printListItems;
+exports.printObjectProperties = printObjectProperties;
+
+const getSymbols = Object.getOwnPropertySymbols || (obj => []);
+/**
+ * Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ *
+ */
+
+const isSymbol = key =>
+ // $FlowFixMe string literal `symbol`. This value is not a valid `typeof` return value
+ typeof key === 'symbol' || toString.call(key) === '[object Symbol]';
+
+// Return entries (for example, of a map)
+// with spacing, indentation, and comma
+// without surrounding punctuation (for example, braces)
+function printIteratorEntries(
+ // Flow 0.51.0: property `@@iterator` of $Iterator not found in Object
+ // To allow simplistic getRecordIterator in immutable.js
+ iterator,
+ config,
+ indentation,
+ depth,
+ refs,
+ printer
+) {
+ let separator =
+ arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : ': ';
+
+ let result = '';
+ let current = iterator.next();
+
+ if (!current.done) {
+ result += config.spacingOuter;
+
+ const indentationNext = indentation + config.indent;
+
+ while (!current.done) {
+ const name = printer(
+ current.value[0],
+ config,
+ indentationNext,
+ depth,
+ refs
+ );
+ const value = printer(
+ current.value[1],
+ config,
+ indentationNext,
+ depth,
+ refs
+ );
+
+ result += indentationNext + name + separator + value;
+
+ current = iterator.next();
+
+ if (!current.done) {
+ result += ',' + config.spacingInner;
+ } else if (!config.min) {
+ result += ',';
+ }
+ }
+
+ result += config.spacingOuter + indentation;
+ }
+
+ return result;
+}
+
+// Return values (for example, of a set)
+// with spacing, indentation, and comma
+// without surrounding punctuation (braces or brackets)
+function printIteratorValues(
+ iterator,
+ config,
+ indentation,
+ depth,
+ refs,
+ printer
+) {
+ let result = '';
+ let current = iterator.next();
+
+ if (!current.done) {
+ result += config.spacingOuter;
+
+ const indentationNext = indentation + config.indent;
+
+ while (!current.done) {
+ result +=
+ indentationNext +
+ printer(current.value, config, indentationNext, depth, refs);
+
+ current = iterator.next();
+
+ if (!current.done) {
+ result += ',' + config.spacingInner;
+ } else if (!config.min) {
+ result += ',';
+ }
+ }
+
+ result += config.spacingOuter + indentation;
+ }
+
+ return result;
+}
+
+// Return items (for example, of an array)
+// with spacing, indentation, and comma
+// without surrounding punctuation (for example, brackets)
+function printListItems(list, config, indentation, depth, refs, printer) {
+ let result = '';
+
+ if (list.length) {
+ result += config.spacingOuter;
+
+ const indentationNext = indentation + config.indent;
+
+ for (let i = 0; i < list.length; i++) {
+ result +=
+ indentationNext +
+ printer(list[i], config, indentationNext, depth, refs);
+
+ if (i < list.length - 1) {
+ result += ',' + config.spacingInner;
+ } else if (!config.min) {
+ result += ',';
+ }
+ }
+
+ result += config.spacingOuter + indentation;
+ }
+
+ return result;
+}
+
+// Return properties of an object
+// with spacing, indentation, and comma
+// without surrounding punctuation (for example, braces)
+function printObjectProperties(val, config, indentation, depth, refs, printer) {
+ let result = '';
+ let keys = Object.keys(val).sort();
+ const symbols = getSymbols(val);
+
+ if (symbols.length) {
+ keys = keys.filter(key => !isSymbol(key)).concat(symbols);
+ }
+
+ if (keys.length) {
+ result += config.spacingOuter;
+
+ const indentationNext = indentation + config.indent;
+
+ for (let i = 0; i < keys.length; i++) {
+ const key = keys[i];
+ const name = printer(key, config, indentationNext, depth, refs);
+ const value = printer(val[key], config, indentationNext, depth, refs);
+
+ result += indentationNext + name + ': ' + value;
+
+ if (i < keys.length - 1) {
+ result += ',' + config.spacingInner;
+ } else if (!config.min) {
+ result += ',';
+ }
+ }
+
+ result += config.spacingOuter + indentation;
+ }
+
+ return result;
+}