Actual signature help trigger filtering#25422
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mhegazy
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Jul 6, 2018
weswigham
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Jul 6, 2018
| for (const key in options) { | ||
| ts.Debug.assert(ts.contains(allKeys, key)); | ||
| if (!ts.contains(allKeys, key)) { | ||
| ts.Debug.fail("Unexpected key " + key); |
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You should return ts.Debug.fail("Unexpected key " + key);, probably.
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I usually only do that when the compiler needs to know more about reachability, but I don't think it's necessary here unless I'm missing something.
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We were talking about making it a lint rule a few weeks ago, that way the reachability graph is more complete and may expose more logic bugs (eg, can a following if statement never actually occur because of the implied throw here).
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This was referenced Jul 9, 2018
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Fixes #25393.