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81 lines
2.4 KiB
81 lines
2.4 KiB
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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