83 lines
3.0 KiB
JavaScript
83 lines
3.0 KiB
JavaScript
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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*
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* @format
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*/
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'use strict';
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var _objectSpread2 = require("@babel/runtime/helpers/interopRequireDefault")(require("@babel/runtime/helpers/objectSpread"));
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/**
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* Determines the variables that are in scope for a fragment given the variables
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* in scope at the root query as well as any arguments applied at the fragment
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* spread via `@arguments`.
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*
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* Note that this is analagous to determining function arguments given a function call.
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*/
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function getFragmentVariables(fragment, rootVariables, argumentVariables) {
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var variables;
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fragment.argumentDefinitions.forEach(function (definition) {
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if (argumentVariables.hasOwnProperty(definition.name)) {
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return;
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}
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variables = variables || (0, _objectSpread2["default"])({}, argumentVariables);
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switch (definition.kind) {
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case 'LocalArgument':
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variables[definition.name] = definition.defaultValue;
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break;
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case 'RootArgument':
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if (!rootVariables.hasOwnProperty(definition.name)) {
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/*
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* A temporary fix to mute false alarm in cases where the root argument is stripped
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* off by the compiler due to a conditional directive, we do not need this argument
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* when tryiny to read the data from the store.
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*/
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break;
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}
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variables[definition.name] = rootVariables[definition.name];
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break;
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default:
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!false ? process.env.NODE_ENV !== "production" ? require("fbjs/lib/invariant")(false, 'RelayConcreteVariables: Unexpected node kind `%s` in fragment `%s`.', definition.kind, fragment.name) : require("fbjs/lib/invariant")(false) : void 0;
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}
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});
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return variables || argumentVariables;
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}
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/**
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* Determines the variables that are in scope for a given operation given values
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* for some/all of its arguments. Extraneous input variables are filtered from
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* the output, and missing variables are set to default values (if given in the
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* operation's definition).
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*/
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function getOperationVariables(operation, variables) {
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var operationVariables = {};
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operation.argumentDefinitions.forEach(function (def) {
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var value = def.defaultValue;
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if (variables[def.name] != null) {
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value = variables[def.name];
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}
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operationVariables[def.name] = value;
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if (process.env.NODE_ENV !== "production") {
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process.env.NODE_ENV !== "production" ? require("fbjs/lib/warning")(value != null || def.type[def.type.length - 1] !== '!', 'RelayConcreteVariables: Expected a value for non-nullable variable ' + '`$%s: %s` on operation `%s`, got `%s`. Make sure you supply a ' + 'value for all non-nullable arguments.', def.name, def.type, operation.name, JSON.stringify(value)) : void 0;
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}
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});
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return operationVariables;
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}
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module.exports = {
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getFragmentVariables: getFragmentVariables,
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getOperationVariables: getOperationVariables
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}; |