You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.3 KiB
54 lines
1.3 KiB
'use strict'; |
|
|
|
Object.defineProperty(exports, '__esModule', { |
|
value: true, |
|
}); |
|
exports.UniqueDirectiveNamesRule = UniqueDirectiveNamesRule; |
|
|
|
var _GraphQLError = require('../../error/GraphQLError.js'); |
|
|
|
/** |
|
* Unique directive names |
|
* |
|
* A GraphQL document is only valid if all defined directives have unique names. |
|
*/ |
|
function UniqueDirectiveNamesRule(context) { |
|
const knownDirectiveNames = Object.create(null); |
|
const schema = context.getSchema(); |
|
return { |
|
DirectiveDefinition(node) { |
|
const directiveName = node.name.value; |
|
|
|
if ( |
|
schema !== null && |
|
schema !== void 0 && |
|
schema.getDirective(directiveName) |
|
) { |
|
context.reportError( |
|
new _GraphQLError.GraphQLError( |
|
`Directive "@${directiveName}" already exists in the schema. It cannot be redefined.`, |
|
{ |
|
nodes: node.name, |
|
}, |
|
), |
|
); |
|
return; |
|
} |
|
|
|
if (knownDirectiveNames[directiveName]) { |
|
context.reportError( |
|
new _GraphQLError.GraphQLError( |
|
`There can be only one directive named "@${directiveName}".`, |
|
{ |
|
nodes: [knownDirectiveNames[directiveName], node.name], |
|
}, |
|
), |
|
); |
|
} else { |
|
knownDirectiveNames[directiveName] = node.name; |
|
} |
|
|
|
return false; |
|
}, |
|
}; |
|
}
|
|
|