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referencePaths #10299

yuyaryshev opened this issue Aug 4, 2019 · 3 comments


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commented Aug 4, 2019

Bug Report

Current Behavior
An identifier is not counted in referencePaths for variable assingnment.
Reference from line 2 in example below is missing.

Input Code

        let a = 1;
        a = 2;
        console.log('a=', a);

Expected behavior/code
referencePaths for binding "a" to contain 3 references.


  • Babel version(s): 7.5.5

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commented Aug 4, 2019

Hey @yuyaryshev! We really appreciate you taking the time to report an issue. The collaborators on this project attempt to help as many people as possible, but we're a limited number of volunteers, so it's possible this won't be addressed swiftly.

If you need any help, or just have general Babel or JavaScript questions, we have a vibrant Slack community that typically always has someone willing to help. You can sign-up here for an invite.


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commented Aug 5, 2019

I would expect only the second like and the third line to count as references; the fiesta line is a binding.


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commented Aug 6, 2019

True, and it seems that

// yes: left = NODE;
// no: NODE = right;
case "AssignmentExpression":
return parent.right === node;

does not conform to §6.2.4

the left-hand operand of an assignment is expected to produce a reference.

@JLHwung JLHwung removed the i: needs triage label Aug 6, 2019

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