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Increment and decrement operators are incorrectly marked as repeatable #878

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alangpierce opened this Issue Feb 27, 2017 · 0 comments

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alangpierce commented Feb 27, 2017

decaffeinate is producing the wrong JavaScript based on my CoffeeScript input:

n = 1
(n++)?.toString()
console.log n

(repl)

I get this output:

let n = 1;
if (n++ != null) {
  (n++).toString();
}
console.log(n);

Here's what I expect it to be instead:

let ref;
let n = 1;
if ((ref = n++) != null) {
  ref.toString();
}
console.log(n);
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