graphql-compose
Version:
GraphQL schema builder from different data sources with middleware extensions.
91 lines • 3.79 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.isUnionTypeComposer = exports.isInterfaceTypeComposer = exports.isInputTypeComposer = exports.isObjectTypeComposer = exports.isEnumTypeComposer = exports.isScalarTypeComposer = exports.visitSchema = exports.getVisitKinds = void 0;
const ObjectTypeComposer_1 = require("../ObjectTypeComposer");
const InputTypeComposer_1 = require("../InputTypeComposer");
const ScalarTypeComposer_1 = require("../ScalarTypeComposer");
const EnumTypeComposer_1 = require("../EnumTypeComposer");
const InterfaceTypeComposer_1 = require("../InterfaceTypeComposer");
const UnionTypeComposer_1 = require("../UnionTypeComposer");
const typeHelpers_1 = require("./typeHelpers");
function getVisitKinds(tc, schema) {
let kinds = [];
if (tc instanceof ObjectTypeComposer_1.ObjectTypeComposer) {
kinds = ['OBJECT_TYPE', 'COMPOSITE_TYPE', 'TYPE'];
if (schema.Query === tc)
kinds.unshift('QUERY', 'ROOT_OBJECT');
if (schema.Mutation === tc)
kinds.unshift('MUTATION', 'ROOT_OBJECT');
if (schema.Subscription === tc)
kinds.unshift('SUBSCRIPTION', 'ROOT_OBJECT');
}
else if (tc instanceof InputTypeComposer_1.InputTypeComposer) {
kinds = ['INPUT_OBJECT_TYPE', 'TYPE'];
}
else if (tc instanceof InterfaceTypeComposer_1.InterfaceTypeComposer) {
kinds = ['INTERFACE_TYPE', 'ABSTRACT_TYPE', 'COMPOSITE_TYPE', 'TYPE'];
}
else if (tc instanceof UnionTypeComposer_1.UnionTypeComposer) {
kinds = ['UNION_TYPE', 'ABSTRACT_TYPE', 'COMPOSITE_TYPE', 'TYPE'];
}
else if (tc instanceof ScalarTypeComposer_1.ScalarTypeComposer) {
kinds = ['SCALAR_TYPE', 'TYPE'];
}
else if (tc instanceof EnumTypeComposer_1.EnumTypeComposer) {
kinds = ['ENUM_TYPE', 'TYPE'];
}
return kinds;
}
exports.getVisitKinds = getVisitKinds;
function visitSchema(schema, visitor) {
const visitedTCs = new WeakSet();
schema.forEach((value, key) => {
if (visitedTCs.has(value))
return;
visitedTCs.add(value);
let tc = value;
const visitKinds = getVisitKinds(tc, schema);
for (const kind of visitKinds) {
const visitorFn = visitor[kind];
if (visitorFn) {
const result = visitorFn(tc, schema);
if (result === null) {
schema.delete(key);
}
else if (result === false) {
break;
}
else if ((0, typeHelpers_1.isNamedTypeComposer)(result)) {
tc = result;
schema.set(key, tc);
}
}
}
});
}
exports.visitSchema = visitSchema;
function isScalarTypeComposer(type) {
return type instanceof ScalarTypeComposer_1.ScalarTypeComposer;
}
exports.isScalarTypeComposer = isScalarTypeComposer;
function isEnumTypeComposer(type) {
return type instanceof EnumTypeComposer_1.EnumTypeComposer;
}
exports.isEnumTypeComposer = isEnumTypeComposer;
function isObjectTypeComposer(type) {
return type instanceof ObjectTypeComposer_1.ObjectTypeComposer;
}
exports.isObjectTypeComposer = isObjectTypeComposer;
function isInputTypeComposer(type) {
return type instanceof InputTypeComposer_1.InputTypeComposer;
}
exports.isInputTypeComposer = isInputTypeComposer;
function isInterfaceTypeComposer(type) {
return type instanceof InterfaceTypeComposer_1.InterfaceTypeComposer;
}
exports.isInterfaceTypeComposer = isInterfaceTypeComposer;
function isUnionTypeComposer(type) {
return type instanceof UnionTypeComposer_1.UnionTypeComposer;
}
exports.isUnionTypeComposer = isUnionTypeComposer;
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