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RN: Support Private Methods & Properties (facebook#39318)
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Summary:
Pull Request resolved: facebook#39318

Updates `react-native/babel-preset` to support private methods and properties.

Changelog:
[General][Added] Added plugins for private methods and properties to `react-native/babel-preset`.

Reviewed By: asiandrummer

Differential Revision: D49029339

fbshipit-source-id: 5982605383702979b4598323c4bde9a9e8b12ab3
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@yungsters @facebook-github-bot
yungsters authored and facebook-github-bot committed Sep 11, 2023
1 parent c91688e commit 8bd19fa
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Showing 3 changed files with 102 additions and 5 deletions.
2 changes: 2 additions & 0 deletions packages/react-native-babel-preset/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,8 @@
"@babel/plugin-transform-modules-commonjs": "^7.0.0",
"@babel/plugin-transform-named-capturing-groups-regex": "^7.0.0",
"@babel/plugin-transform-parameters": "^7.0.0",
"@babel/plugin-transform-private-methods": "^7.22.5",
"@babel/plugin-transform-private-property-in-object": "^7.22.11",
"@babel/plugin-transform-react-display-name": "^7.0.0",
"@babel/plugin-transform-react-jsx": "^7.0.0",
"@babel/plugin-transform-react-jsx-self": "^7.0.0",
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11 changes: 6 additions & 5 deletions packages/react-native-babel-preset/src/configs/main.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,15 +21,16 @@ function isTSXSource(fileName) {
return !!fileName && fileName.endsWith('.tsx');
}

// use `this.foo = bar` instead of `this.defineProperty('foo', ...)`
const loose = true;

const defaultPlugins = [
[require('@babel/plugin-syntax-flow')],
[require('babel-plugin-transform-flow-enums')],
[require('@babel/plugin-transform-block-scoping')],
[
require('@babel/plugin-proposal-class-properties'),
// use `this.foo = bar` instead of `this.defineProperty('foo', ...)`
{loose: true},
],
[require('@babel/plugin-proposal-class-properties'), {loose}],
[require('@babel/plugin-transform-private-methods'), {loose}],
[require('@babel/plugin-transform-private-property-in-object'), {loose}],
[require('@babel/plugin-syntax-dynamic-import')],
[require('@babel/plugin-syntax-export-default-from')],
...passthroughSyntaxPlugins,
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94 changes: 94 additions & 0 deletions yarn.lock
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Expand Up @@ -426,6 +426,21 @@
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Expand Down Expand Up @@ -493,6 +508,13 @@
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Expand Down Expand Up @@ -521,11 +543,23 @@
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Expand Down Expand Up @@ -557,6 +591,15 @@
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"@babel/helper-replace-supers@^7.22.9":
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Expand All @@ -571,13 +614,27 @@
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"@babel/helper-skip-transparent-expression-wrappers@^7.22.5":
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Expand All @@ -593,6 +650,11 @@
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Expand Down Expand Up @@ -1153,6 +1215,24 @@
dependencies:
"@babel/helper-plugin-utils" "^7.20.2"

"@babel/plugin-transform-private-methods@^7.22.5":
version "7.22.5"
resolved "https://registry.yarnpkg.com/@babel/plugin-transform-private-methods/-/plugin-transform-private-methods-7.22.5.tgz#21c8af791f76674420a147ae62e9935d790f8722"
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Expand Down Expand Up @@ -1465,6 +1545,15 @@
"@babel/helper-validator-identifier" "^7.19.1"
to-fast-properties "^2.0.0"

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Expand Down Expand Up @@ -10166,6 +10255,11 @@ semver@^6.0.0, semver@^6.1.1, semver@^6.1.2, semver@^6.2.0, semver@^6.3.0:
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semver@^7.5.2, semver@^7.5.3, semver@^7.5.4:
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resolved "https://registry.yarnpkg.com/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
Expand Down

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