1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.valueFromAST = valueFromAST;
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7 |
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8 | var _objectValues3 = _interopRequireDefault(require("../polyfills/objectValues.js"));
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9 |
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10 | var _keyMap = _interopRequireDefault(require("../jsutils/keyMap.js"));
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11 |
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12 | var _inspect = _interopRequireDefault(require("../jsutils/inspect.js"));
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13 |
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14 | var _invariant = _interopRequireDefault(require("../jsutils/invariant.js"));
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15 |
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16 | var _kinds = require("../language/kinds.js");
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17 |
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18 | var _definition = require("../type/definition.js");
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19 |
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20 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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21 |
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22 |
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23 |
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34 |
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35 |
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36 |
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37 |
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38 |
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39 |
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40 |
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41 |
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42 | function valueFromAST(valueNode, type, variables) {
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43 | if (!valueNode) {
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44 |
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45 |
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46 | return;
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47 | }
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48 |
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49 | if (valueNode.kind === _kinds.Kind.VARIABLE) {
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50 | var variableName = valueNode.name.value;
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51 |
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52 | if (variables == null || variables[variableName] === undefined) {
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53 |
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54 | return;
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55 | }
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56 |
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57 | var variableValue = variables[variableName];
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58 |
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59 | if (variableValue === null && (0, _definition.isNonNullType)(type)) {
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60 | return;
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61 | }
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62 |
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63 |
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64 |
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65 |
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66 | return variableValue;
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67 | }
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68 |
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69 | if ((0, _definition.isNonNullType)(type)) {
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70 | if (valueNode.kind === _kinds.Kind.NULL) {
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71 | return;
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72 | }
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73 |
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74 | return valueFromAST(valueNode, type.ofType, variables);
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75 | }
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76 |
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77 | if (valueNode.kind === _kinds.Kind.NULL) {
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78 |
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79 | return null;
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80 | }
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81 |
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82 | if ((0, _definition.isListType)(type)) {
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83 | var itemType = type.ofType;
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84 |
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85 | if (valueNode.kind === _kinds.Kind.LIST) {
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86 | var coercedValues = [];
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87 |
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88 | for (var _i2 = 0, _valueNode$values2 = valueNode.values; _i2 < _valueNode$values2.length; _i2++) {
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89 | var itemNode = _valueNode$values2[_i2];
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90 |
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91 | if (isMissingVariable(itemNode, variables)) {
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92 |
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93 |
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94 | if ((0, _definition.isNonNullType)(itemType)) {
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95 | return;
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96 | }
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97 |
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98 | coercedValues.push(null);
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99 | } else {
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100 | var itemValue = valueFromAST(itemNode, itemType, variables);
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101 |
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102 | if (itemValue === undefined) {
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103 | return;
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104 | }
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105 |
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106 | coercedValues.push(itemValue);
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107 | }
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108 | }
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109 |
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110 | return coercedValues;
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111 | }
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112 |
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113 | var coercedValue = valueFromAST(valueNode, itemType, variables);
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114 |
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115 | if (coercedValue === undefined) {
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116 | return;
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117 | }
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118 |
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119 | return [coercedValue];
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120 | }
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121 |
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122 | if ((0, _definition.isInputObjectType)(type)) {
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123 | if (valueNode.kind !== _kinds.Kind.OBJECT) {
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124 | return;
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125 | }
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126 |
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127 | var coercedObj = Object.create(null);
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128 | var fieldNodes = (0, _keyMap.default)(valueNode.fields, function (field) {
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129 | return field.name.value;
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130 | });
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131 |
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132 | for (var _i4 = 0, _objectValues2 = (0, _objectValues3.default)(type.getFields()); _i4 < _objectValues2.length; _i4++) {
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133 | var field = _objectValues2[_i4];
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134 | var fieldNode = fieldNodes[field.name];
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135 |
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136 | if (!fieldNode || isMissingVariable(fieldNode.value, variables)) {
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137 | if (field.defaultValue !== undefined) {
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138 | coercedObj[field.name] = field.defaultValue;
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139 | } else if ((0, _definition.isNonNullType)(field.type)) {
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140 | return;
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141 | }
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142 |
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143 | continue;
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144 | }
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145 |
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146 | var fieldValue = valueFromAST(fieldNode.value, field.type, variables);
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147 |
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148 | if (fieldValue === undefined) {
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149 | return;
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150 | }
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151 |
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152 | coercedObj[field.name] = fieldValue;
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153 | }
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154 |
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155 | return coercedObj;
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156 | }
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157 |
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158 |
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159 | if ((0, _definition.isLeafType)(type)) {
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160 |
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161 |
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162 |
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163 | var result;
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164 |
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165 | try {
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166 | result = type.parseLiteral(valueNode, variables);
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167 | } catch (_error) {
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168 | return;
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169 | }
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170 |
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171 | if (result === undefined) {
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172 | return;
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173 | }
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174 |
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175 | return result;
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176 | }
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177 |
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178 |
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179 | false || (0, _invariant.default)(0, 'Unexpected input type: ' + (0, _inspect.default)(type));
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180 | }
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181 |
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182 |
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183 |
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184 | function isMissingVariable(valueNode, variables) {
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185 | return valueNode.kind === _kinds.Kind.VARIABLE && (variables == null || variables[valueNode.name.value] === undefined);
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186 | }
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