diff options
Diffstat (limited to 'school/node_modules/graphql/validation/rules/UniqueFieldDefinitionNamesRule.js.flow')
-rw-r--r-- | school/node_modules/graphql/validation/rules/UniqueFieldDefinitionNamesRule.js.flow | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/school/node_modules/graphql/validation/rules/UniqueFieldDefinitionNamesRule.js.flow b/school/node_modules/graphql/validation/rules/UniqueFieldDefinitionNamesRule.js.flow deleted file mode 100644 index 1193111..0000000 --- a/school/node_modules/graphql/validation/rules/UniqueFieldDefinitionNamesRule.js.flow +++ /dev/null @@ -1,87 +0,0 @@ -// @flow strict -import { GraphQLError } from '../../error/GraphQLError'; - -import type { ASTVisitor } from '../../language/visitor'; -import type { - NameNode, - FieldDefinitionNode, - InputValueDefinitionNode, -} from '../../language/ast'; - -import type { GraphQLNamedType } from '../../type/definition'; -import { - isObjectType, - isInterfaceType, - isInputObjectType, -} from '../../type/definition'; - -import type { SDLValidationContext } from '../ValidationContext'; - -/** - * Unique field definition names - * - * A GraphQL complex type is only valid if all its fields are uniquely named. - */ -export function UniqueFieldDefinitionNamesRule( - context: SDLValidationContext, -): ASTVisitor { - const schema = context.getSchema(); - const existingTypeMap = schema ? schema.getTypeMap() : Object.create(null); - const knownFieldNames = Object.create(null); - - return { - InputObjectTypeDefinition: checkFieldUniqueness, - InputObjectTypeExtension: checkFieldUniqueness, - InterfaceTypeDefinition: checkFieldUniqueness, - InterfaceTypeExtension: checkFieldUniqueness, - ObjectTypeDefinition: checkFieldUniqueness, - ObjectTypeExtension: checkFieldUniqueness, - }; - - function checkFieldUniqueness(node: { - +name: NameNode, - +fields?: $ReadOnlyArray<InputValueDefinitionNode | FieldDefinitionNode>, - ... - }) { - const typeName = node.name.value; - - if (!knownFieldNames[typeName]) { - knownFieldNames[typeName] = Object.create(null); - } - - // istanbul ignore next (See: 'https://github.com/graphql/graphql-js/issues/2203') - const fieldNodes = node.fields ?? []; - const fieldNames = knownFieldNames[typeName]; - - for (const fieldDef of fieldNodes) { - const fieldName = fieldDef.name.value; - - if (hasField(existingTypeMap[typeName], fieldName)) { - context.reportError( - new GraphQLError( - `Field "${typeName}.${fieldName}" already exists in the schema. It cannot also be defined in this type extension.`, - fieldDef.name, - ), - ); - } else if (fieldNames[fieldName]) { - context.reportError( - new GraphQLError( - `Field "${typeName}.${fieldName}" can only be defined once.`, - [fieldNames[fieldName], fieldDef.name], - ), - ); - } else { - fieldNames[fieldName] = fieldDef.name; - } - } - - return false; - } -} - -function hasField(type: GraphQLNamedType, fieldName: string): boolean { - if (isObjectType(type) || isInterfaceType(type) || isInputObjectType(type)) { - return type.getFields()[fieldName] != null; - } - return false; -} |