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.
49 lines
1.3 KiB
49 lines
1.3 KiB
'use strict'; |
|
|
|
Object.defineProperty(exports, '__esModule', { |
|
value: true, |
|
}); |
|
exports.UniqueVariableNamesRule = UniqueVariableNamesRule; |
|
|
|
var _groupBy = require('../../jsutils/groupBy.js'); |
|
|
|
var _GraphQLError = require('../../error/GraphQLError.js'); |
|
|
|
/** |
|
* Unique variable names |
|
* |
|
* A GraphQL operation is only valid if all its variables are uniquely named. |
|
*/ |
|
function UniqueVariableNamesRule(context) { |
|
return { |
|
OperationDefinition(operationNode) { |
|
var _operationNode$variab; |
|
|
|
// See: https://github.com/graphql/graphql-js/issues/2203 |
|
|
|
/* c8 ignore next */ |
|
const variableDefinitions = |
|
(_operationNode$variab = operationNode.variableDefinitions) !== null && |
|
_operationNode$variab !== void 0 |
|
? _operationNode$variab |
|
: []; |
|
const seenVariableDefinitions = (0, _groupBy.groupBy)( |
|
variableDefinitions, |
|
(node) => node.variable.name.value, |
|
); |
|
|
|
for (const [variableName, variableNodes] of seenVariableDefinitions) { |
|
if (variableNodes.length > 1) { |
|
context.reportError( |
|
new _GraphQLError.GraphQLError( |
|
`There can be only one variable named "$${variableName}".`, |
|
{ |
|
nodes: variableNodes.map((node) => node.variable.name), |
|
}, |
|
), |
|
); |
|
} |
|
} |
|
}, |
|
}; |
|
}
|
|
|