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Add reactProdInvariant and corresponding babel rewrite pass #6948

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merged 11 commits into from
Jun 8, 2016

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keyz
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@keyz keyz commented Jun 2, 2016

Implements #6874. Thanks for reviewing!

var buildRequire = babel.template(`var IMPORT_NAME = require(SOURCE);`);

var REQUIRE_PROD_INVARIANT = buildRequire({
IMPORT_NAME: t.identifier(prodInvariantName),
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I think we should consider doing this differently. Right now we don't have a guarantee that this identifier doesn't already exist (practically it probably won't matter but just in case…). We can use babel helpers to generate a unique identifier to use though and it'll be tracked on a per-file basis. This is how I did it for the object-assign transform: https://github.com/facebook/fbjs/blob/7c77c3c2ebcf0f1174512a66a08998dcff3d4cc5/babel-preset/plugins/object-assign.js#L15-L27

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ghost commented Jun 3, 2016

@keyanzhang updated the pull request.

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ghost commented Jun 3, 2016

@keyanzhang updated the pull request.

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ghost commented Jun 3, 2016

@keyanzhang updated the pull request.

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@keyanzhang updated the pull request.

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ghost commented Jun 3, 2016

@keyanzhang updated the pull request.

@keyz keyz changed the title WIP: add reactProdInvariant Add reactProdInvariant and corresponding babel rewrite pass Jun 3, 2016
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @providesModule reactProdInvariant
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I think that all React* modules currently capitalized React...

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The pattern is actually this:

  • export an object or class? Upper case
  • export a function? lower case

The only other one we have of the latter that starts with react is reactComponentExpect

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ah! thanks!

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I think this looks good other than my inlines. Can you post build size numbers?

@sophiebits sophiebits added this to the 15-next milestone Jun 7, 2016
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keyz commented Jun 7, 2016

Yep,

Running "compare_size:files" (compare_size) task
   raw     gz Sizes
  1199    641 build/react-dom-server.js
   734    445 build/react-dom-server.min.js
  1180    632 build/react-dom.js
   715    436 build/react-dom.min.js
763407 170722 build/react-with-addons.js
164511  48727 build/react-with-addons.min.js
686407 154438 build/react.js
153055  45492 build/react.min.js

   raw     gz Compared to master @ d101f68bce34a62613a3e86981266111e8950267
     =      = build/react-dom-server.js
     =      = build/react-dom-server.min.js
     =      = build/react-dom.js
     =      = build/react-dom.min.js
 +1112   -349 build/react-with-addons.js
 +2323  +1048 build/react-with-addons.min.js
 +2083   -268 build/react.js
 +2342  +1020 build/react.min.js

I wonder if there are things I can do to further reduce the size. It's much better than not rewriting invariant calls (leave them as-is) though.

* WARNING: DO NOT manually require this module.
* This is a replacement for `invariant(...)` used by the error code system
* and will _only_ be required by the corresponding babel pass.
* It always throw.
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(grammar: "It always throws.")

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ghost commented Jun 7, 2016

@keyanzhang updated the pull request.

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ghost commented Jun 8, 2016

@keyanzhang updated the pull request.

@keyz keyz merged commit 1abce16 into facebook:master Jun 8, 2016
@keyz keyz deleted the rewrite-invariant branch June 8, 2016 00:11
zpao pushed a commit to zpao/react that referenced this pull request Jun 8, 2016
zpao pushed a commit that referenced this pull request Jun 14, 2016
@zpao zpao modified the milestones: 15-next, 15.2.0 Jun 14, 2016
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5 participants