123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142 |
- 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';
- 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;
- }
-
- 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.
-
- invariant(false, 'Unexpected input type: ' + inspect(type));
- }
|