@apollo/federation
Version:
Apollo Federation Utilities
90 lines • 3.82 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.PossibleTypeExtensions = void 0;
const graphql_1 = require("graphql");
const utils_1 = require("../../utils");
function PossibleTypeExtensions(context) {
const schema = context.getSchema();
const definedTypes = Object.create(null);
for (const def of context.getDocument().definitions) {
if ((0, graphql_1.isTypeDefinitionNode)(def)) {
definedTypes[def.name.value] = def;
}
}
const checkExtension = (node) => {
const typeName = node.name.value;
const defNode = definedTypes[typeName];
const existingType = schema && schema.getType(typeName);
const serviceName = node.serviceName;
if (!serviceName)
return;
if (defNode) {
const expectedKind = utils_1.defKindToExtKind[defNode.kind];
const baseKind = defNode.kind;
if (expectedKind !== node.kind) {
context.reportError((0, utils_1.errorWithCode)('EXTENSION_OF_WRONG_KIND', (0, utils_1.logServiceAndType)(serviceName, typeName) +
`\`${typeName}\` was originally defined as a ${baseKind} and can only be extended by a ${expectedKind}. ${serviceName} defines ${typeName} as a ${node.kind}`, node));
}
}
else if (existingType) {
const expectedKind = typeToExtKind(existingType);
const baseKind = typeToKind(existingType);
if (expectedKind !== node.kind) {
context.reportError((0, utils_1.errorWithCode)('EXTENSION_OF_WRONG_KIND', (0, utils_1.logServiceAndType)(serviceName, typeName) +
`\`${typeName}\` was originally defined as a ${baseKind} and can only be extended by a ${expectedKind}. ${serviceName} defines ${typeName} as a ${node.kind}`, node));
}
}
else {
context.reportError((0, utils_1.errorWithCode)('EXTENSION_WITH_NO_BASE', (0, utils_1.logServiceAndType)(serviceName, typeName) +
`\`${typeName}\` is an extension type, but \`${typeName}\` is not defined in any service`, node));
}
};
return {
ObjectTypeExtension: checkExtension,
InterfaceTypeExtension: checkExtension,
};
}
exports.PossibleTypeExtensions = PossibleTypeExtensions;
function typeToExtKind(type) {
if ((0, graphql_1.isScalarType)(type)) {
return graphql_1.Kind.SCALAR_TYPE_EXTENSION;
}
else if ((0, graphql_1.isObjectType)(type)) {
return graphql_1.Kind.OBJECT_TYPE_EXTENSION;
}
else if ((0, graphql_1.isInterfaceType)(type)) {
return graphql_1.Kind.INTERFACE_TYPE_EXTENSION;
}
else if ((0, graphql_1.isUnionType)(type)) {
return graphql_1.Kind.UNION_TYPE_EXTENSION;
}
else if ((0, graphql_1.isEnumType)(type)) {
return graphql_1.Kind.ENUM_TYPE_EXTENSION;
}
else if ((0, graphql_1.isInputObjectType)(type)) {
return graphql_1.Kind.INPUT_OBJECT_TYPE_EXTENSION;
}
return null;
}
function typeToKind(type) {
if ((0, graphql_1.isScalarType)(type)) {
return graphql_1.Kind.SCALAR_TYPE_DEFINITION;
}
else if ((0, graphql_1.isObjectType)(type)) {
return graphql_1.Kind.OBJECT_TYPE_DEFINITION;
}
else if ((0, graphql_1.isInterfaceType)(type)) {
return graphql_1.Kind.INTERFACE_TYPE_DEFINITION;
}
else if ((0, graphql_1.isUnionType)(type)) {
return graphql_1.Kind.UNION_TYPE_DEFINITION;
}
else if ((0, graphql_1.isEnumType)(type)) {
return graphql_1.Kind.ENUM_TYPE_DEFINITION;
}
else if ((0, graphql_1.isInputObjectType)(type)) {
return graphql_1.Kind.INPUT_OBJECT_TYPE_DEFINITION;
}
return null;
}
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