Commit Graph

7 Commits

Author SHA1 Message Date
Rich Trott
a68987c154 benchmark,lib,test: adjust for linting
Formatting changes for upcoming linter update.

PR-URL: https://github.com/nodejs/node/pull/10561
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Sam Roberts <vieuxtech@gmail.com>
2017-01-06 14:36:01 -08:00
Anna Henningsen
ebc8c37f70 repl: keep the built-in modules non-enumerable
Make sure that the built-in modules in the repl stay non-enumerable.
Previously, they would pop up as enumerable properties of the global
object after having been accessed for the first time.

PR-URL: https://github.com/nodejs/node/pull/6207
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2016-04-18 15:31:51 -07:00
Anna Henningsen
39d905e293 node: make builtin libs available for --eval
Make the builtin libraries available for the `--eval` and
`--print` CLI options, using the same mechanism that the
REPL uses.

This renders workarounds like `node -e 'require("fs").doStuff()'`
unnecessary.

As part of this, the list of builtin modules and the code for
adding the corresponding properties to the target context is moved
to `internal/module.js`, and the previously missing `repl` entry
is added.

PR-URL: https://github.com/nodejs/node/pull/6207
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2016-04-18 15:31:32 -07:00
Brian White
ae18bbef48
lib: improve module loading performance
This commit improves module loading performance by at least ~25-35%
in the module-loader benchmarks.

Some optimization strategies include:
* Try-finally/try-catch isolation
* Replacing regular expressions with manual parsing
* Avoiding unnecessary string and array creation
* Avoiding constant recompilation of anonymous functions and
function definitions within functions

PR-URL: https://github.com/nodejs/node/pull/5172
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-04-14 14:58:46 -04:00
Ben Noordhuis
83f8d98806 module: cache stat() results more aggressively
Reduce the number of stat() system calls that require() makes by caching
the results more aggressively.

To avoid unbounded growth without implementing a LRU cache, scope the
cache to the lifetime of the first call to require().  Recursive calls
(i.e. require() calls in the included code) transparently profit from
the cache.

The benchmarked application is the loopback-sample-app[0] and it sees
the number of stat calls at start-up go down by 40%, from 4736 to 2810.

[0] https://github.com/strongloop/loopback-sample-app

PR-URL: https://github.com/nodejs/node/pull/4575
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
2016-01-12 12:35:11 -08:00
Ben Noordhuis
ee72ee7531 module,repl: remove repl require() hack
Remove a hack that was introduced in commit bb6d468d from November 2010.
This is groundwork for a follow-up commit that makes it possible to use
internal modules in lib/repl.js.

PR-URL: https://github.com/nodejs/node/pull/4026
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
2015-11-30 23:58:27 +01:00
Dave Eddy
2e6ece44e1 node: add -c|--check CLI arg to syntax check script
PR-URL: https://github.com/nodejs/node/pull/2411
Reviewed-By: Rod Vagg <rod@vagg.org>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Evan Lucas <evanlucas@me.com>
2015-10-03 21:58:38 +10:00