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update for acorn

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Mihai Bazon
2012-10-13 00:35:24 +03:00
parent 8149be551e
commit 70d205c447
1 changed files with 1 additions and 4 deletions
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README.md
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@@ -291,10 +291,7 @@ internal AST.
### Use Acorn for parsing ### Use Acorn for parsing
More for fun, I added the `--acorn` option which will use Acorn to do all More for fun, I added the `--acorn` option which will use Acorn to do all
the parsing. If you pass this option, UglifyJS will `require("acorn")`. At the parsing. If you pass this option, UglifyJS will `require("acorn")`.
the time I'm writing this it needs
[this commit](https://github.com/mishoo/acorn/commit/17c0d189c7f9ce5447293569036949b5d0a05fef)
in Acorn to support multiple input files and properly generate source maps.
Acorn is really fast (e.g. 250ms instead of 380ms on some 650K code), but Acorn is really fast (e.g. 250ms instead of 380ms on some 650K code), but
converting the SpiderMonkey tree that Acorn produces takes another 150ms so converting the SpiderMonkey tree that Acorn produces takes another 150ms so