summaryrefslogtreecommitdiff
path: root/school/node_modules/graphql/execution/values.mjs
blob: 485a210de2ede24fb01d3ed64116de888be6ba72 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
import find from "../polyfills/find.mjs";
import keyMap from "../jsutils/keyMap.mjs";
import inspect from "../jsutils/inspect.mjs";
import printPathArray from "../jsutils/printPathArray.mjs";
import { GraphQLError } from "../error/GraphQLError.mjs";
import { Kind } from "../language/kinds.mjs";
import { print } from "../language/printer.mjs";
import { isInputType, isNonNullType } from "../type/definition.mjs";
import { typeFromAST } from "../utilities/typeFromAST.mjs";
import { valueFromAST } from "../utilities/valueFromAST.mjs";
import { coerceInputValue } from "../utilities/coerceInputValue.mjs";

/**
 * Prepares an object map of variableValues of the correct type based on the
 * provided variable definitions and arbitrary input. If the input cannot be
 * parsed to match the variable definitions, a GraphQLError will be thrown.
 *
 * Note: The returned value is a plain Object with a prototype, since it is
 * exposed to user code. Care should be taken to not pull values from the
 * Object prototype.
 *
 * @internal
 */
export function getVariableValues(schema, varDefNodes, inputs, options) {
  var errors = [];
  var maxErrors = options === null || options === void 0 ? void 0 : options.maxErrors;

  try {
    var coerced = coerceVariableValues(schema, varDefNodes, inputs, function (error) {
      if (maxErrors != null && errors.length >= maxErrors) {
        throw new GraphQLError('Too many errors processing variables, error limit reached. Execution aborted.');
      }

      errors.push(error);
    });

    if (errors.length === 0) {
      return {
        coerced: coerced
      };
    }
  } catch (error) {
    errors.push(error);
  }

  return {
    errors: errors
  };
}

function coerceVariableValues(schema, varDefNodes, inputs, onError) {
  var coercedValues = {};

  var _loop = function _loop(_i2) {
    var varDefNode = varDefNodes[_i2];
    var varName = varDefNode.variable.name.value;
    var varType = typeFromAST(schema, varDefNode.type);

    if (!isInputType(varType)) {
      // Must use input types for variables. This should be caught during
      // validation, however is checked again here for safety.
      var varTypeStr = print(varDefNode.type);
      onError(new GraphQLError("Variable \"$".concat(varName, "\" expected value of type \"").concat(varTypeStr, "\" which cannot be used as an input type."), varDefNode.type));
      return "continue";
    }

    if (!hasOwnProperty(inputs, varName)) {
      if (varDefNode.defaultValue) {
        coercedValues[varName] = valueFromAST(varDefNode.defaultValue, varType);
      } else if (isNonNullType(varType)) {
        var _varTypeStr = inspect(varType);

        onError(new GraphQLError("Variable \"$".concat(varName, "\" of required type \"").concat(_varTypeStr, "\" was not provided."), varDefNode));
      }

      return "continue";
    }

    var value = inputs[varName];

    if (value === null && isNonNullType(varType)) {
      var _varTypeStr2 = inspect(varType);

      onError(new GraphQLError("Variable \"$".concat(varName, "\" of non-null type \"").concat(_varTypeStr2, "\" must not be null."), varDefNode));
      return "continue";
    }

    coercedValues[varName] = coerceInputValue(value, varType, function (path, invalidValue, error) {
      var prefix = "Variable \"$".concat(varName, "\" got invalid value ") + inspect(invalidValue);

      if (path.length > 0) {
        prefix += " at \"".concat(varName).concat(printPathArray(path), "\"");
      }

      onError(new GraphQLError(prefix + '; ' + error.message, varDefNode, undefined, undefined, undefined, error.originalError));
    });
  };

  for (var _i2 = 0; _i2 < varDefNodes.length; _i2++) {
    var _ret = _loop(_i2);

    if (_ret === "continue") continue;
  }

  return coercedValues;
}
/**
 * Prepares an object map of argument values given a list of argument
 * definitions and list of argument AST nodes.
 *
 * Note: The returned value is a plain Object with a prototype, since it is
 * exposed to user code. Care should be taken to not pull values from the
 * Object prototype.
 *
 * @internal
 */


export function getArgumentValues(def, node, variableValues) {
  var _node$arguments;

  var coercedValues = {}; // istanbul ignore next (See: 'https://github.com/graphql/graphql-js/issues/2203')

  var argumentNodes = (_node$arguments = node.arguments) !== null && _node$arguments !== void 0 ? _node$arguments : [];
  var argNodeMap = keyMap(argumentNodes, function (arg) {
    return arg.name.value;
  });

  for (var _i4 = 0, _def$args2 = def.args; _i4 < _def$args2.length; _i4++) {
    var argDef = _def$args2[_i4];
    var name = argDef.name;
    var argType = argDef.type;
    var argumentNode = argNodeMap[name];

    if (!argumentNode) {
      if (argDef.defaultValue !== undefined) {
        coercedValues[name] = argDef.defaultValue;
      } else if (isNonNullType(argType)) {
        throw new GraphQLError("Argument \"".concat(name, "\" of required type \"").concat(inspect(argType), "\" ") + 'was not provided.', node);
      }

      continue;
    }

    var valueNode = argumentNode.value;
    var isNull = valueNode.kind === Kind.NULL;

    if (valueNode.kind === Kind.VARIABLE) {
      var variableName = valueNode.name.value;

      if (variableValues == null || !hasOwnProperty(variableValues, variableName)) {
        if (argDef.defaultValue !== undefined) {
          coercedValues[name] = argDef.defaultValue;
        } else if (isNonNullType(argType)) {
          throw new GraphQLError("Argument \"".concat(name, "\" of required type \"").concat(inspect(argType), "\" ") + "was provided the variable \"$".concat(variableName, "\" which was not provided a runtime value."), valueNode);
        }

        continue;
      }

      isNull = variableValues[variableName] == null;
    }

    if (isNull && isNonNullType(argType)) {
      throw new GraphQLError("Argument \"".concat(name, "\" of non-null type \"").concat(inspect(argType), "\" ") + 'must not be null.', valueNode);
    }

    var coercedValue = valueFromAST(valueNode, argType, variableValues);

    if (coercedValue === undefined) {
      // Note: ValuesOfCorrectTypeRule validation should catch this before
      // execution. This is a runtime check to ensure execution does not
      // continue with an invalid argument value.
      throw new GraphQLError("Argument \"".concat(name, "\" has invalid value ").concat(print(valueNode), "."), valueNode);
    }

    coercedValues[name] = coercedValue;
  }

  return coercedValues;
}
/**
 * Prepares an object map of argument values given a directive definition
 * and a AST node which may contain directives. Optionally also accepts a map
 * of variable values.
 *
 * If the directive does not exist on the node, returns undefined.
 *
 * Note: The returned value is a plain Object with a prototype, since it is
 * exposed to user code. Care should be taken to not pull values from the
 * Object prototype.
 */

export function getDirectiveValues(directiveDef, node, variableValues) {
  var directiveNode = node.directives && find(node.directives, function (directive) {
    return directive.name.value === directiveDef.name;
  });

  if (directiveNode) {
    return getArgumentValues(directiveDef, directiveNode, variableValues);
  }
}

function hasOwnProperty(obj, prop) {
  return Object.prototype.hasOwnProperty.call(obj, prop);
}