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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
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 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.
the parsing. If you pass this option, UglifyJS will `require("acorn")`.
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