MessagesForMacintosh/JS/node_modules/graphql/utilities/getOperationAST.mjs

34 lines
1.1 KiB
JavaScript

import { Kind } from "../language/kinds.mjs";
/**
* Returns an operation AST given a document AST and optionally an operation
* name. If a name is not provided, an operation is only returned if only one is
* provided in the document.
*/
export function getOperationAST(documentAST, operationName) {
var operation = null;
for (var _i2 = 0, _documentAST$definiti2 = documentAST.definitions; _i2 < _documentAST$definiti2.length; _i2++) {
var definition = _documentAST$definiti2[_i2];
if (definition.kind === Kind.OPERATION_DEFINITION) {
var _definition$name;
if (operationName == null) {
// If no operation name was provided, only return an Operation if there
// is one defined in the document. Upon encountering the second, return
// null.
if (operation) {
return null;
}
operation = definition;
} else if (((_definition$name = definition.name) === null || _definition$name === void 0 ? void 0 : _definition$name.value) === operationName) {
return definition;
}
}
}
return operation;
}