Sha256: ff5e5ffd3d486f1a02b8637815c0c67787e47240ec59e2c7a6869b63af6a9db5
Contents?: true
Size: 1.44 KB
Versions: 26
Compression:
Stored size: 1.44 KB
Contents
'use strict';
Object.defineProperty(exports, '__esModule', {
value: true,
});
exports.UniqueTypeNamesRule = UniqueTypeNamesRule;
var _GraphQLError = require('../../error/GraphQLError.js');
/**
* Unique type names
*
* A GraphQL document is only valid if all defined types have unique names.
*/
function UniqueTypeNamesRule(context) {
const knownTypeNames = Object.create(null);
const schema = context.getSchema();
return {
ScalarTypeDefinition: checkTypeName,
ObjectTypeDefinition: checkTypeName,
InterfaceTypeDefinition: checkTypeName,
UnionTypeDefinition: checkTypeName,
EnumTypeDefinition: checkTypeName,
InputObjectTypeDefinition: checkTypeName,
};
function checkTypeName(node) {
const typeName = node.name.value;
if (schema !== null && schema !== void 0 && schema.getType(typeName)) {
context.reportError(
new _GraphQLError.GraphQLError(
`Type "${typeName}" already exists in the schema. It cannot also be defined in this type definition.`,
{
nodes: node.name,
},
),
);
return;
}
if (knownTypeNames[typeName]) {
context.reportError(
new _GraphQLError.GraphQLError(
`There can be only one type named "${typeName}".`,
{
nodes: [knownTypeNames[typeName], node.name],
},
),
);
} else {
knownTypeNames[typeName] = node.name;
}
return false;
}
}
Version data entries
26 entries across 26 versions & 1 rubygems