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- 'use strict';
- Object.defineProperty(exports, '__esModule', {
- value: true,
- });
- exports.coerceInputValue = coerceInputValue;
- var _didYouMean = require('../jsutils/didYouMean.js');
- var _inspect = require('../jsutils/inspect.js');
- var _invariant = require('../jsutils/invariant.js');
- var _isIterableObject = require('../jsutils/isIterableObject.js');
- var _isObjectLike = require('../jsutils/isObjectLike.js');
- var _Path = require('../jsutils/Path.js');
- var _printPathArray = require('../jsutils/printPathArray.js');
- var _suggestionList = require('../jsutils/suggestionList.js');
- var _GraphQLError = require('../error/GraphQLError.js');
- var _definition = require('../type/definition.js');
- /**
- * Coerces a JavaScript value given a GraphQL Input Type.
- */
- function coerceInputValue(inputValue, type, onError = defaultOnError) {
- return coerceInputValueImpl(inputValue, type, onError, undefined);
- }
- function defaultOnError(path, invalidValue, error) {
- let errorPrefix = 'Invalid value ' + (0, _inspect.inspect)(invalidValue);
- if (path.length > 0) {
- errorPrefix += ` at "value${(0, _printPathArray.printPathArray)(path)}"`;
- }
- error.message = errorPrefix + ': ' + error.message;
- throw error;
- }
- function coerceInputValueImpl(inputValue, type, onError, path) {
- if ((0, _definition.isNonNullType)(type)) {
- if (inputValue != null) {
- return coerceInputValueImpl(inputValue, type.ofType, onError, path);
- }
- onError(
- (0, _Path.pathToArray)(path),
- inputValue,
- new _GraphQLError.GraphQLError(
- `Expected non-nullable type "${(0, _inspect.inspect)(
- type,
- )}" not to be null.`,
- ),
- );
- return;
- }
- if (inputValue == null) {
- // Explicitly return the value null.
- return null;
- }
- if ((0, _definition.isListType)(type)) {
- const itemType = type.ofType;
- if ((0, _isIterableObject.isIterableObject)(inputValue)) {
- return Array.from(inputValue, (itemValue, index) => {
- const itemPath = (0, _Path.addPath)(path, index, undefined);
- return coerceInputValueImpl(itemValue, itemType, onError, itemPath);
- });
- } // Lists accept a non-list value as a list of one.
- return [coerceInputValueImpl(inputValue, itemType, onError, path)];
- }
- if ((0, _definition.isInputObjectType)(type)) {
- if (!(0, _isObjectLike.isObjectLike)(inputValue)) {
- onError(
- (0, _Path.pathToArray)(path),
- inputValue,
- new _GraphQLError.GraphQLError(
- `Expected type "${type.name}" to be an object.`,
- ),
- );
- return;
- }
- const coercedValue = {};
- const fieldDefs = type.getFields();
- for (const field of Object.values(fieldDefs)) {
- const fieldValue = inputValue[field.name];
- if (fieldValue === undefined) {
- if (field.defaultValue !== undefined) {
- coercedValue[field.name] = field.defaultValue;
- } else if ((0, _definition.isNonNullType)(field.type)) {
- const typeStr = (0, _inspect.inspect)(field.type);
- onError(
- (0, _Path.pathToArray)(path),
- inputValue,
- new _GraphQLError.GraphQLError(
- `Field "${field.name}" of required type "${typeStr}" was not provided.`,
- ),
- );
- }
- continue;
- }
- coercedValue[field.name] = coerceInputValueImpl(
- fieldValue,
- field.type,
- onError,
- (0, _Path.addPath)(path, field.name, type.name),
- );
- } // Ensure every provided field is defined.
- for (const fieldName of Object.keys(inputValue)) {
- if (!fieldDefs[fieldName]) {
- const suggestions = (0, _suggestionList.suggestionList)(
- fieldName,
- Object.keys(type.getFields()),
- );
- onError(
- (0, _Path.pathToArray)(path),
- inputValue,
- new _GraphQLError.GraphQLError(
- `Field "${fieldName}" is not defined by type "${type.name}".` +
- (0, _didYouMean.didYouMean)(suggestions),
- ),
- );
- }
- }
- return coercedValue;
- }
- if ((0, _definition.isLeafType)(type)) {
- let parseResult; // Scalars and Enums determine if a input value is valid via parseValue(),
- // which can throw to indicate failure. If it throws, maintain a reference
- // to the original error.
- try {
- parseResult = type.parseValue(inputValue);
- } catch (error) {
- if (error instanceof _GraphQLError.GraphQLError) {
- onError((0, _Path.pathToArray)(path), inputValue, error);
- } else {
- onError(
- (0, _Path.pathToArray)(path),
- inputValue,
- new _GraphQLError.GraphQLError(
- `Expected type "${type.name}". ` + error.message,
- {
- originalError: error,
- },
- ),
- );
- }
- return;
- }
- if (parseResult === undefined) {
- onError(
- (0, _Path.pathToArray)(path),
- inputValue,
- new _GraphQLError.GraphQLError(`Expected type "${type.name}".`),
- );
- }
- return parseResult;
- }
- /* c8 ignore next 3 */
- // Not reachable, all possible types have been considered.
- false ||
- (0, _invariant.invariant)(
- false,
- 'Unexpected input type: ' + (0, _inspect.inspect)(type),
- );
- }
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