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82 lines
2.4 KiB
82 lines
2.4 KiB
5 months ago
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import { groupBy } from '../../jsutils/groupBy.mjs';
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import { GraphQLError } from '../../error/GraphQLError.mjs';
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/**
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* Unique argument definition names
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*
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* A GraphQL Object or Interface type is only valid if all its fields have uniquely named arguments.
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* A GraphQL Directive is only valid if all its arguments are uniquely named.
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*/
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export function UniqueArgumentDefinitionNamesRule(context) {
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return {
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DirectiveDefinition(directiveNode) {
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var _directiveNode$argume;
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// FIXME: https://github.com/graphql/graphql-js/issues/2203
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/* c8 ignore next */
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const argumentNodes =
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(_directiveNode$argume = directiveNode.arguments) !== null &&
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_directiveNode$argume !== void 0
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? _directiveNode$argume
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: [];
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return checkArgUniqueness(`@${directiveNode.name.value}`, argumentNodes);
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},
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InterfaceTypeDefinition: checkArgUniquenessPerField,
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InterfaceTypeExtension: checkArgUniquenessPerField,
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ObjectTypeDefinition: checkArgUniquenessPerField,
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ObjectTypeExtension: checkArgUniquenessPerField,
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};
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function checkArgUniquenessPerField(typeNode) {
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var _typeNode$fields;
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const typeName = typeNode.name.value; // FIXME: https://github.com/graphql/graphql-js/issues/2203
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/* c8 ignore next */
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const fieldNodes =
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(_typeNode$fields = typeNode.fields) !== null &&
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_typeNode$fields !== void 0
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? _typeNode$fields
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: [];
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for (const fieldDef of fieldNodes) {
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var _fieldDef$arguments;
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const fieldName = fieldDef.name.value; // FIXME: https://github.com/graphql/graphql-js/issues/2203
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/* c8 ignore next */
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const argumentNodes =
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(_fieldDef$arguments = fieldDef.arguments) !== null &&
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_fieldDef$arguments !== void 0
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? _fieldDef$arguments
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: [];
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checkArgUniqueness(`${typeName}.${fieldName}`, argumentNodes);
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}
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return false;
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}
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function checkArgUniqueness(parentName, argumentNodes) {
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const seenArgs = groupBy(argumentNodes, (arg) => arg.name.value);
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for (const [argName, argNodes] of seenArgs) {
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if (argNodes.length > 1) {
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context.reportError(
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new GraphQLError(
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`Argument "${parentName}(${argName}:)" can only be defined once.`,
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{
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nodes: argNodes.map((node) => node.name),
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},
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),
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);
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}
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}
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return false;
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}
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}
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