1 | import objectValues from "../polyfills/objectValues.mjs";
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2 | import keyMap from "../jsutils/keyMap.mjs";
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3 | import inspect from "../jsutils/inspect.mjs";
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4 | import invariant from "../jsutils/invariant.mjs";
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5 | import { Kind } from "../language/kinds.mjs";
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6 | import { isLeafType, isInputObjectType, isListType, isNonNullType } from "../type/definition.mjs";
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27 |
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28 | export function valueFromAST(valueNode, type, variables) {
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29 | if (!valueNode) {
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30 |
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31 |
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32 | return;
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33 | }
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34 |
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35 | if (valueNode.kind === Kind.VARIABLE) {
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36 | var variableName = valueNode.name.value;
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37 |
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38 | if (variables == null || variables[variableName] === undefined) {
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39 |
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40 | return;
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41 | }
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42 |
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43 | var variableValue = variables[variableName];
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44 |
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45 | if (variableValue === null && isNonNullType(type)) {
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46 | return;
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47 | }
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48 |
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49 |
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50 |
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51 |
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52 | return variableValue;
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53 | }
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54 |
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55 | if (isNonNullType(type)) {
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56 | if (valueNode.kind === Kind.NULL) {
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57 | return;
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58 | }
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59 |
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60 | return valueFromAST(valueNode, type.ofType, variables);
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61 | }
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62 |
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63 | if (valueNode.kind === Kind.NULL) {
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64 |
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65 | return null;
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66 | }
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67 |
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68 | if (isListType(type)) {
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69 | var itemType = type.ofType;
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70 |
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71 | if (valueNode.kind === Kind.LIST) {
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72 | var coercedValues = [];
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73 |
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74 | for (var _i2 = 0, _valueNode$values2 = valueNode.values; _i2 < _valueNode$values2.length; _i2++) {
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75 | var itemNode = _valueNode$values2[_i2];
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76 |
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77 | if (isMissingVariable(itemNode, variables)) {
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78 |
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79 |
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80 | if (isNonNullType(itemType)) {
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81 | return;
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82 | }
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83 |
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84 | coercedValues.push(null);
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85 | } else {
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86 | var itemValue = valueFromAST(itemNode, itemType, variables);
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87 |
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88 | if (itemValue === undefined) {
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89 | return;
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90 | }
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91 |
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92 | coercedValues.push(itemValue);
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93 | }
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94 | }
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95 |
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96 | return coercedValues;
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97 | }
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98 |
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99 | var coercedValue = valueFromAST(valueNode, itemType, variables);
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100 |
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101 | if (coercedValue === undefined) {
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102 | return;
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103 | }
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104 |
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105 | return [coercedValue];
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106 | }
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107 |
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108 | if (isInputObjectType(type)) {
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109 | if (valueNode.kind !== Kind.OBJECT) {
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110 | return;
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111 | }
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112 |
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113 | var coercedObj = Object.create(null);
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114 | var fieldNodes = keyMap(valueNode.fields, function (field) {
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115 | return field.name.value;
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116 | });
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117 |
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118 | for (var _i4 = 0, _objectValues2 = objectValues(type.getFields()); _i4 < _objectValues2.length; _i4++) {
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119 | var field = _objectValues2[_i4];
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120 | var fieldNode = fieldNodes[field.name];
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121 |
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122 | if (!fieldNode || isMissingVariable(fieldNode.value, variables)) {
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123 | if (field.defaultValue !== undefined) {
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124 | coercedObj[field.name] = field.defaultValue;
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125 | } else if (isNonNullType(field.type)) {
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126 | return;
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127 | }
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128 |
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129 | continue;
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130 | }
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131 |
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132 | var fieldValue = valueFromAST(fieldNode.value, field.type, variables);
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133 |
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134 | if (fieldValue === undefined) {
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135 | return;
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136 | }
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137 |
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138 | coercedObj[field.name] = fieldValue;
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139 | }
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140 |
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141 | return coercedObj;
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142 | }
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143 |
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144 |
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145 | if (isLeafType(type)) {
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146 |
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147 |
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148 |
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149 | var result;
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150 |
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151 | try {
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152 | result = type.parseLiteral(valueNode, variables);
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153 | } catch (_error) {
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154 | return;
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155 | }
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156 |
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157 | if (result === undefined) {
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158 | return;
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159 | }
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160 |
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161 | return result;
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162 | }
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163 |
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164 |
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165 | false || invariant(0, 'Unexpected input type: ' + inspect(type));
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166 | }
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167 |
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168 |
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169 | function isMissingVariable(valueNode, variables) {
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170 | return valueNode.kind === Kind.VARIABLE && (variables == null || variables[valueNode.name.value] === undefined);
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171 | }
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