1 | import { forEach, isCollection } from 'iterall';
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2 | import objectValues from '../polyfills/objectValues';
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3 | import inspect from '../jsutils/inspect';
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4 | import invariant from '../jsutils/invariant';
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5 | import didYouMean from '../jsutils/didYouMean';
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6 | import isObjectLike from '../jsutils/isObjectLike';
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7 | import suggestionList from '../jsutils/suggestionList';
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8 | import printPathArray from '../jsutils/printPathArray';
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9 | import { addPath, pathToArray } from '../jsutils/Path';
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10 | import { GraphQLError } from '../error/GraphQLError';
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11 | import { isScalarType, isEnumType, isInputObjectType, isListType, isNonNullType } from '../type/definition';
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12 |
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13 |
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14 |
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15 |
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16 | export function coerceInputValue(inputValue, type) {
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17 | var onError = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : defaultOnError;
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18 | return coerceInputValueImpl(inputValue, type, onError);
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19 | }
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20 |
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21 | function defaultOnError(path, invalidValue, error) {
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22 | var errorPrefix = 'Invalid value ' + inspect(invalidValue);
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23 |
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24 | if (path.length > 0) {
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25 | errorPrefix += " at \"value".concat(printPathArray(path), "\": ");
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26 | }
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27 |
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28 | error.message = errorPrefix + ': ' + error.message;
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29 | throw error;
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30 | }
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31 |
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32 | function coerceInputValueImpl(inputValue, type, onError, path) {
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33 | if (isNonNullType(type)) {
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34 | if (inputValue != null) {
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35 | return coerceInputValueImpl(inputValue, type.ofType, onError, path);
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36 | }
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37 |
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38 | onError(pathToArray(path), inputValue, new GraphQLError("Expected non-nullable type ".concat(inspect(type), " not to be null.")));
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39 | return;
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40 | }
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41 |
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42 | if (inputValue == null) {
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43 |
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44 | return null;
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45 | }
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46 |
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47 | if (isListType(type)) {
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48 | var itemType = type.ofType;
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49 |
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50 | if (isCollection(inputValue)) {
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51 | var coercedValue = [];
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52 | forEach(inputValue, function (itemValue, index) {
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53 | coercedValue.push(coerceInputValueImpl(itemValue, itemType, onError, addPath(path, index)));
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54 | });
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55 | return coercedValue;
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56 | }
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57 |
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58 |
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59 | return [coerceInputValueImpl(inputValue, itemType, onError, path)];
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60 | }
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61 |
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62 | if (isInputObjectType(type)) {
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63 | if (!isObjectLike(inputValue)) {
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64 | onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, " to be an object.")));
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65 | return;
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66 | }
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67 |
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68 | var _coercedValue = {};
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69 | var fieldDefs = type.getFields();
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70 |
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71 | for (var _i2 = 0, _objectValues2 = objectValues(fieldDefs); _i2 < _objectValues2.length; _i2++) {
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72 | var field = _objectValues2[_i2];
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73 | var fieldValue = inputValue[field.name];
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74 |
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75 | if (fieldValue === undefined) {
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76 | if (field.defaultValue !== undefined) {
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77 | _coercedValue[field.name] = field.defaultValue;
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78 | } else if (isNonNullType(field.type)) {
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79 | var typeStr = inspect(field.type);
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80 | onError(pathToArray(path), inputValue, new GraphQLError("Field ".concat(field.name, " of required type ").concat(typeStr, " was not provided.")));
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81 | }
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82 |
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83 | continue;
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84 | }
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85 |
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86 | _coercedValue[field.name] = coerceInputValueImpl(fieldValue, field.type, onError, addPath(path, field.name));
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87 | }
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88 |
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89 |
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90 | for (var _i4 = 0, _Object$keys2 = Object.keys(inputValue); _i4 < _Object$keys2.length; _i4++) {
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91 | var fieldName = _Object$keys2[_i4];
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92 |
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93 | if (!fieldDefs[fieldName]) {
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94 | var suggestions = suggestionList(fieldName, Object.keys(type.getFields()));
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95 | onError(pathToArray(path), inputValue, new GraphQLError("Field \"".concat(fieldName, "\" is not defined by type ").concat(type.name, ".") + didYouMean(suggestions)));
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96 | }
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97 | }
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98 |
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99 | return _coercedValue;
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100 | }
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101 |
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102 | if (isScalarType(type)) {
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103 | var parseResult;
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104 |
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105 |
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106 |
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107 | try {
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108 | parseResult = type.parseValue(inputValue);
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109 | } catch (error) {
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110 | onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, ". ") + error.message, undefined, undefined, undefined, undefined, error));
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111 | return;
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112 | }
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113 |
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114 | if (parseResult === undefined) {
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115 | onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, ".")));
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116 | }
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117 |
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118 | return parseResult;
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119 | }
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120 |
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121 |
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122 | if (isEnumType(type)) {
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123 | if (typeof inputValue === 'string') {
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124 | var enumValue = type.getValue(inputValue);
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125 |
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126 | if (enumValue) {
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127 | return enumValue.value;
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128 | }
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129 | }
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130 |
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131 | var _suggestions = suggestionList(String(inputValue), type.getValues().map(function (enumValue) {
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132 | return enumValue.name;
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133 | }));
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134 |
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135 | onError(pathToArray(path), inputValue, new GraphQLError("Expected type ".concat(type.name, ".") + didYouMean(_suggestions)));
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136 | return;
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137 | }
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138 |
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139 |
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140 |
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141 | invariant(false, 'Unexpected input type: ' + inspect(type));
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142 | }
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