Rollup fails with chained assignments #6007
Description
Rollup Version
v4.40.0 (my machine)
v4.44.2 (REPL)
Operating System (or Browser)
Windows 11 24H2
Node Version (if applicable)
v22.14.0
Link To Reproduction
Expected Behaviour
Rollup should correctly parse and bundle the module, handling chained assignments and destructuring in export statements without error.
The expected bundle result would be:
const {foo} = baz = {foo: 1, bar: 2};
console.log(foo, baz);When the code is refactored to avoid chained assignments and use separate constant definitions, the equivalent code bundles successfully without error: https://rollupjs.org/repl/?version=4.44.2&shareable=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
Actual Behaviour
It throws an error
[!] TypeError: Cannot read properties of null (reading 'module')
at setAlternativeExporterIfCyclic (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:19131:18)
at Module.getVariableForExportName (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:18522:17)
at getVariableForExportNameRecursive (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:18156:19)
at Module.traceVariable (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:18784:35)
at ModuleScope.findVariable (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:16449:39)
at Identifier.bind (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:9125:40)
at CallExpression.bind (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:6548:28)
at CallExpression.bind (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:13529:15)
at ExpressionStatement.bind (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:6552:23)
at Program.bind (C:\Users\***\AppData\Roaming\fnm\node-versions\v22.14.0\installation\node_modules\rollup\dist\shared\rollup.js:6548:28