node_modules/graphql/execution/values.js

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true,
});
exports.getArgumentValues = getArgumentValues;
exports.getDirectiveValues = getDirectiveValues;
exports.getVariableValues = getVariableValues;

var _inspect = require('../jsutils/inspect.js');

var _keyMap = require('../jsutils/keyMap.js');

var _printPathArray = require('../jsutils/printPathArray.js');

var _GraphQLError = require('../error/GraphQLError.js');

var _kinds = require('../language/kinds.js');

var _printer = require('../language/printer.js');

var _definition = require('../type/definition.js');

var _coerceInputValue = require('../utilities/coerceInputValue.js');

var _typeFromAST = require('../utilities/typeFromAST.js');

var _valueFromAST = require('../utilities/valueFromAST.js');

/**
 * 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.
 */
function getVariableValues(schema, varDefNodes, inputs, options) {
  const errors = [];
  const maxErrors =
    options === null || options === void 0 ? void 0 : options.maxErrors;

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

        errors.push(error);
      },
    );

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

  return {
    errors,
  };
}

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

  for (const varDefNode of varDefNodes) {
    const varName = varDefNode.variable.name.value;
    const varType = (0, _typeFromAST.typeFromAST)(schema, varDefNode.type);

    if (!(0, _definition.isInputType)(varType)) {
      // Must use input types for variables. This should be caught during
      // validation, however is checked again here for safety.
      const varTypeStr = (0, _printer.print)(varDefNode.type);
      onError(
        new _GraphQLError.GraphQLError(
          `Variable "$${varName}" expected value of type "${varTypeStr}" which cannot be used as an input type.`,
          {
            nodes: varDefNode.type,
          },
        ),
      );
      continue;
    }

    if (!hasOwnProperty(inputs, varName)) {
      if (varDefNode.defaultValue) {
        coercedValues[varName] = (0, _valueFromAST.valueFromAST)(
          varDefNode.defaultValue,
          varType,
        );
      } else if ((0, _definition.isNonNullType)(varType)) {
        const varTypeStr = (0, _inspect.inspect)(varType);
        onError(
          new _GraphQLError.GraphQLError(
            `Variable "$${varName}" of required type "${varTypeStr}" was not provided.`,
            {
              nodes: varDefNode,
            },
          ),
        );
      }

      continue;
    }

    const value = inputs[varName];

    if (value === null && (0, _definition.isNonNullType)(varType)) {
      const varTypeStr = (0, _inspect.inspect)(varType);
      onError(
        new _GraphQLError.GraphQLError(
          `Variable "$${varName}" of non-null type "${varTypeStr}" must not be null.`,
          {
            nodes: varDefNode,
          },
        ),
      );
      continue;
    }

    coercedValues[varName] = (0, _coerceInputValue.coerceInputValue)(
      value,
      varType,
      (path, invalidValue, error) => {
        let prefix =
          `Variable "$${varName}" got invalid value ` +
          (0, _inspect.inspect)(invalidValue);

        if (path.length > 0) {
          prefix += ` at "${varName}${(0, _printPathArray.printPathArray)(
            path,
          )}"`;
        }

        onError(
          new _GraphQLError.GraphQLError(prefix + '; ' + error.message, {
            nodes: varDefNode,
            originalError: error,
          }),
        );
      },
    );
  }

  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.
 */

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

  const coercedValues = {}; // FIXME: https://github.com/graphql/graphql-js/issues/2203

  /* c8 ignore next */

  const argumentNodes =
    (_node$arguments = node.arguments) !== null && _node$arguments !== void 0
      ? _node$arguments
      : [];
  const argNodeMap = (0, _keyMap.keyMap)(
    argumentNodes,
    (arg) => arg.name.value,
  );

  for (const argDef of def.args) {
    const name = argDef.name;
    const argType = argDef.type;
    const argumentNode = argNodeMap[name];

    if (!argumentNode) {
      if (argDef.defaultValue !== undefined) {
        coercedValues[name] = argDef.defaultValue;
      } else if ((0, _definition.isNonNullType)(argType)) {
        throw new _GraphQLError.GraphQLError(
          `Argument "${name}" of required type "${(0, _inspect.inspect)(
            argType,
          )}" ` + 'was not provided.',
          {
            nodes: node,
          },
        );
      }

      continue;
    }

    const valueNode = argumentNode.value;
    let isNull = valueNode.kind === _kinds.Kind.NULL;

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

      if (
        variableValues == null ||
        !hasOwnProperty(variableValues, variableName)
      ) {
        if (argDef.defaultValue !== undefined) {
          coercedValues[name] = argDef.defaultValue;
        } else if ((0, _definition.isNonNullType)(argType)) {
          throw new _GraphQLError.GraphQLError(
            `Argument "${name}" of required type "${(0, _inspect.inspect)(
              argType,
            )}" ` +
              `was provided the variable "$${variableName}" which was not provided a runtime value.`,
            {
              nodes: valueNode,
            },
          );
        }

        continue;
      }

      isNull = variableValues[variableName] == null;
    }

    if (isNull && (0, _definition.isNonNullType)(argType)) {
      throw new _GraphQLError.GraphQLError(
        `Argument "${name}" of non-null type "${(0, _inspect.inspect)(
          argType,
        )}" ` + 'must not be null.',
        {
          nodes: valueNode,
        },
      );
    }

    const coercedValue = (0, _valueFromAST.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.GraphQLError(
        `Argument "${name}" has invalid value ${(0, _printer.print)(
          valueNode,
        )}.`,
        {
          nodes: 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.
 */

function getDirectiveValues(directiveDef, node, variableValues) {
  var _node$directives;

  const directiveNode =
    (_node$directives = node.directives) === null || _node$directives === void 0
      ? void 0
      : _node$directives.find(
          (directive) => directive.name.value === directiveDef.name,
        );

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

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