Initial Save

node_modules/graphql/utilities/coerceInputValue.mjs

@@ -0,0 +1,142 @@
+import { forEach, isCollection } from 'iterall';
+import objectValues from '../polyfills/objectValues';
+import inspect from '../jsutils/inspect';
+import invariant from '../jsutils/invariant';
+import didYouMean from '../jsutils/didYouMean';
+import isObjectLike from '../jsutils/isObjectLike';
+import suggestionList from '../jsutils/suggestionList';
+import printPathArray from '../jsutils/printPathArray';
+import { addPath, pathToArray } from '../jsutils/Path';
+import { GraphQLError } from '../error/GraphQLError';
+import { isScalarType, isEnumType, isInputObjectType, isListType, isNonNullType } from '../type/definition';
+
+/**
+ * Coerces a JavaScript value given a GraphQL Input Type.
+ */
+export function coerceInputValue(inputValue, type) {
+  var onError = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : defaultOnError;
+  return coerceInputValueImpl(inputValue, type, onError);
+}
+
+function defaultOnError(path, invalidValue, error) {
+  var errorPrefix = 'Invalid value ' + inspect(invalidValue);
+
+  if (path.length > 0) {
+    errorPrefix += " at \"value".concat(printPathArray(path), "\": ");
+  }
+
+  error.message = errorPrefix + ': ' + error.message;
+  throw error;
+}
+
+function coerceInputValueImpl(inputValue, type, onError, path) {
+  if (isNonNullType(type)) {
+    if (inputValue != null) {
+      return coerceInputValueImpl(inputValue, type.ofType, onError, path);
+    }
+
+    onError(pathToArray(path), inputValue, new GraphQLError("Expected non-nullable type ".concat(inspect(type), " not to be null.")));
+    return;
+  }
+
+  if (inputValue == null) {
+    // Explicitly return the value null.
+    return null;
+  }
+
+  if (isListType(type)) {
+    var itemType = type.ofType;
+
+    if (isCollection(inputValue)) {
+      var coercedValue = [];
+      forEach(inputValue, function (itemValue, index) {
+        coercedValue.push(coerceInputValueImpl(itemValue, itemType, onError, addPath(path, index)));
+      });
+      return coercedValue;
+    } // Lists accept a non-list value as a list of one.
+
+
+    return [coerceInputValueImpl(inputValue, itemType, onError, path)];
+  }
+
+  if (isInputObjectType(type)) {
+    if (!isObjectLike(inputValue)) {
+      onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, " to be an object.")));
+      return;
+    }
+
+    var _coercedValue = {};
+    var fieldDefs = type.getFields();
+
+    for (var _i2 = 0, _objectValues2 = objectValues(fieldDefs); _i2 < _objectValues2.length; _i2++) {
+      var field = _objectValues2[_i2];
+      var fieldValue = inputValue[field.name];
+
+      if (fieldValue === undefined) {
+        if (field.defaultValue !== undefined) {
+          _coercedValue[field.name] = field.defaultValue;
+        } else if (isNonNullType(field.type)) {
+          var typeStr = inspect(field.type);
+          onError(pathToArray(path), inputValue, new GraphQLError("Field ".concat(field.name, " of required type ").concat(typeStr, " was not provided.")));
+        }
+
+        continue;
+      }
+
+      _coercedValue[field.name] = coerceInputValueImpl(fieldValue, field.type, onError, addPath(path, field.name));
+    } // Ensure every provided field is defined.
+
+
+    for (var _i4 = 0, _Object$keys2 = Object.keys(inputValue); _i4 < _Object$keys2.length; _i4++) {
+      var fieldName = _Object$keys2[_i4];
+
+      if (!fieldDefs[fieldName]) {
+        var suggestions = suggestionList(fieldName, Object.keys(type.getFields()));
+        onError(pathToArray(path), inputValue, new GraphQLError("Field \"".concat(fieldName, "\" is not defined by type ").concat(type.name, ".") + didYouMean(suggestions)));
+      }
+    }
+
+    return _coercedValue;
+  }
+
+  if (isScalarType(type)) {
+    var parseResult; // Scalars determine if a input value is valid via parseValue(), which can
+    // throw to indicate failure. If it throws, maintain a reference to
+    // the original error.
+
+    try {
+      parseResult = type.parseValue(inputValue);
+    } catch (error) {
+      onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, ". ") + error.message, undefined, undefined, undefined, undefined, error));
+      return;
+    }
+
+    if (parseResult === undefined) {
+      onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, ".")));
+    }
+
+    return parseResult;
+  }
+
+  /* istanbul ignore else */
+  if (isEnumType(type)) {
+    if (typeof inputValue === 'string') {
+      var enumValue = type.getValue(inputValue);
+
+      if (enumValue) {
+        return enumValue.value;
+      }
+    }
+
+    var _suggestions = suggestionList(String(inputValue), type.getValues().map(function (enumValue) {
+      return enumValue.name;
+    }));
+
+    onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, ".") + didYouMean(_suggestions)));
+    return;
+  } // Not reachable. All possible input types have been considered.
+
+
+  /* istanbul ignore next */
+  invariant(false, 'Unexpected input type: ' + inspect(type));
+}