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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2017-03-05 13:09:27 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-03-05 13:09:27 +0800 |
| commit | b33e7f88e60f886ee3403c82ac2e3fb40caa698f (patch) | |
| tree | 76d221f44841840055a1187baca0bb3d5c5af009 /lib/parse.js | |
| parent | 1f0333e9f146311e0e412fbd0783c0e1e63c7802 (diff) | |
| download | tracifyjs-b33e7f88e60f886ee3403c82ac2e3fb40caa698f.tar.gz tracifyjs-b33e7f88e60f886ee3403c82ac2e3fb40caa698f.zip | |
improve `unsafe` on undefined (#1548)
`unsafe` turns undefined keyword into a variable of the same name if found, but that interferes with other related optimisations.
Keep track of such transformations to ensure zero information loss in the process.
Diffstat (limited to 'lib/parse.js')
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