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node_modules/graphql/jsutils/inspect.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = inspect;
+
+var _nodejsCustomInspectSymbol = _interopRequireDefault(require("./nodejsCustomInspectSymbol"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
+
+var MAX_ARRAY_LENGTH = 10;
+var MAX_RECURSIVE_DEPTH = 2;
+/**
+ * Used to print values in error messages.
+ */
+
+function inspect(value) {
+  return formatValue(value, []);
+}
+
+function formatValue(value, seenValues) {
+  switch (_typeof(value)) {
+    case 'string':
+      return JSON.stringify(value);
+
+    case 'function':
+      return value.name ? "[function ".concat(value.name, "]") : '[function]';
+
+    case 'object':
+      if (value === null) {
+        return 'null';
+      }
+
+      return formatObjectValue(value, seenValues);
+
+    default:
+      return String(value);
+  }
+}
+
+function formatObjectValue(value, previouslySeenValues) {
+  if (previouslySeenValues.indexOf(value) !== -1) {
+    return '[Circular]';
+  }
+
+  var seenValues = [].concat(previouslySeenValues, [value]);
+  var customInspectFn = getCustomFn(value);
+
+  if (customInspectFn !== undefined) {
+    // $FlowFixMe(>=0.90.0)
+    var customValue = customInspectFn.call(value); // check for infinite recursion
+
+    if (customValue !== value) {
+      return typeof customValue === 'string' ? customValue : formatValue(customValue, seenValues);
+    }
+  } else if (Array.isArray(value)) {
+    return formatArray(value, seenValues);
+  }
+
+  return formatObject(value, seenValues);
+}
+
+function formatObject(object, seenValues) {
+  var keys = Object.keys(object);
+
+  if (keys.length === 0) {
+    return '{}';
+  }
+
+  if (seenValues.length > MAX_RECURSIVE_DEPTH) {
+    return '[' + getObjectTag(object) + ']';
+  }
+
+  var properties = keys.map(function (key) {
+    var value = formatValue(object[key], seenValues);
+    return key + ': ' + value;
+  });
+  return '{ ' + properties.join(', ') + ' }';
+}
+
+function formatArray(array, seenValues) {
+  if (array.length === 0) {
+    return '[]';
+  }
+
+  if (seenValues.length > MAX_RECURSIVE_DEPTH) {
+    return '[Array]';
+  }
+
+  var len = Math.min(MAX_ARRAY_LENGTH, array.length);
+  var remaining = array.length - len;
+  var items = [];
+
+  for (var i = 0; i < len; ++i) {
+    items.push(formatValue(array[i], seenValues));
+  }
+
+  if (remaining === 1) {
+    items.push('... 1 more item');
+  } else if (remaining > 1) {
+    items.push("... ".concat(remaining, " more items"));
+  }
+
+  return '[' + items.join(', ') + ']';
+}
+
+function getCustomFn(object) {
+  var customInspectFn = object[String(_nodejsCustomInspectSymbol.default)];
+
+  if (typeof customInspectFn === 'function') {
+    return customInspectFn;
+  }
+
+  if (typeof object.inspect === 'function') {
+    return object.inspect;
+  }
+}
+
+function getObjectTag(object) {
+  var tag = Object.prototype.toString.call(object).replace(/^\[object /, '').replace(/]$/, '');
+
+  if (tag === 'Object' && typeof object.constructor === 'function') {
+    var name = object.constructor.name;
+
+    if (typeof name === 'string' && name !== '') {
+      return name;
+    }
+  }
+
+  return tag;
+}