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authorMinteck <contact@minteck.org>2023-02-23 19:34:56 +0100
committerMinteck <contact@minteck.org>2023-02-23 19:34:56 +0100
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diff --git a/school/node_modules/graphql/validation/rules/UniqueDirectiveNamesRule.js.flow b/school/node_modules/graphql/validation/rules/UniqueDirectiveNamesRule.js.flow
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-// @flow strict
-import { GraphQLError } from '../../error/GraphQLError';
-import type { ASTVisitor } from '../../language/visitor';
-
-import type { SDLValidationContext } from '../ValidationContext';
-
-/**
- * Unique directive names
- *
- * A GraphQL document is only valid if all defined directives have unique names.
- */
-export function UniqueDirectiveNamesRule(
- context: SDLValidationContext,
-): ASTVisitor {
- const knownDirectiveNames = Object.create(null);
- const schema = context.getSchema();
-
- return {
- DirectiveDefinition(node) {
- const directiveName = node.name.value;
-
- if (schema?.getDirective(directiveName)) {
- context.reportError(
- new GraphQLError(
- `Directive "@${directiveName}" already exists in the schema. It cannot be redefined.`,
- node.name,
- ),
- );
- return;
- }
-
- if (knownDirectiveNames[directiveName]) {
- context.reportError(
- new GraphQLError(
- `There can be only one directive named "@${directiveName}".`,
- [knownDirectiveNames[directiveName], node.name],
- ),
- );
- } else {
- knownDirectiveNames[directiveName] = node.name;
- }
-
- return false;
- },
- };
-}