@relay-graphql-js/validation-rules/dist/RelayDefaultValueOfCorrectType.js

shared relay validation rules for graphql-js parser

"use strict";
exports.__esModule = true;
exports.RelayDefaultValueOfCorrectType = void 0;
var graphql_1 = require("graphql");
var argumentDefinitions_1 = require("./argumentDefinitions");
var utils_1 = require("./utils");
// tslint:disable-next-line: no-shadowed-variable
exports.RelayDefaultValueOfCorrectType = function RelayDefaultValueOfCorrectType(context) {
    return {
        Directive: function (directive, _key, _parent, _path, ancestors) {
            if (directive.name.value !== "argumentDefinitions" || !directive.arguments) {
                return false;
            }
            var fragmentDefinition = utils_1.findFragmentDefinitionParent(ancestors);
            if (!fragmentDefinition) {
                return false;
            }
            var typedArguments = argumentDefinitions_1.getFragmentArgumentDefinitions(context, fragmentDefinition);
            directive.arguments.forEach(function (argument) {
                if (argument.value.kind !== "ObjectValue") {
                    return;
                }
                var defaultValueField = argument.value.fields.find(function (f) { return f.name.value === "defaultValue"; });
                if (!defaultValueField) {
                    return;
                }
                var arg = typedArguments[argument.name.value];
                if (!arg) {
                    return;
                }
                if (arg.schemaType && arg.defaultValue && !utils_1.containsVariableNodes(arg.defaultValue)) {
                    if (arg.defaultValue.kind === "NullValue") {
                        context.reportError(new graphql_1.GraphQLError(cannotSpecifyNullAsDefaultValue(fragmentDefinition.name.value, argument.name.value), defaultValueField.value));
                        return;
                    }
                    var value = graphql_1.valueFromAST(arg.defaultValue, arg.schemaType);
                    if (value === undefined) {
                        context.reportError(new graphql_1.GraphQLError(badValueMessage(fragmentDefinition.name.value, argument.name.value, utils_1.makeNonNullable(arg.schemaType).toString()), defaultValueField.value));
                    }
                }
            });
        }
    };
};
function badValueMessage(fragmentName, argName, argType) {
    return "defaultValue for argument \"" + argName + "\" on fragment \"" + fragmentName + "\" is expected to be of type \"" + argType + "\".";
}
function cannotSpecifyNullAsDefaultValue(fragmentName, argName) {
    return "defaultValue for argument \"" + argName + "\" on fragment \"" + fragmentName + "\" cannot be null. Instead, omit defaultValue.";
}