James Addison bff6298578
Reduce dependency on lodash functions: values, extends (#11798)
* Replace lodash 'values' usage with Object.keys => .map(obj[key])

* Block scoping: refactor letReferences, outsideLetReferences as objects of type Map

* Remove lodash dependency from babel-plugin-transform-block-scoping

* Fixup: Add missing Object.keys call

* Fixup: Update remaining property accessors

* Coerce Map.values() iterator results into an array via spread operator

* Fixup: Map.put -> Map.set

* Fixup: undo incorrect variable de-duplication

* Replace array-spread-plus-map combination with Array.from call

* Extract an extendMap function as an attempt to create an optimization boundary

* Experiment: cast objects to string (eliminates one Map/object difference per https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map )

* Fixup: perform String cast on map keys, not values

* Revert "Fixup: perform String cast on map keys, not values"

This reverts commit abdd147438fa74f51ac50ef1f96bb462810cd3f2.

* Revert "Experiment: cast objects to string (eliminates one Map/object difference per https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map )"

This reverts commit a4035c885b37bfd6e926a0362bda9dcf5b5a52c2.

* Experiment: filter keys via Object.prototype.hasOwnProperty.call

* Revert "Experiment: filter keys via Object.prototype.hasOwnProperty.call"

This reverts commit 491c093f213c6229815b2e6dc9243245376265b0.

* Migrate back from Map-based reference storage to Object-based storage; access performance appears much improved for Object property access

* Revert "Migrate back from Map-based reference storage to Object-based storage; access performance appears much improved for Object property access"

This reverts commit 2119acc7f0d78ced3b9ad77820b4b72e5ad67475.

* Iterate over a clone of outsideRefs keys

* Revert "Extract an extendMap function as an attempt to create an optimization boundary"

This reverts commit 85689f2bfc180d0b5c0e674e5de7954470c7ec69.

* Fixup: migrate remaining Object property access to Map.get in tdz module
2020-07-08 13:17:04 +02:00

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{
"name": "@babel/plugin-transform-block-scoping",
"version": "7.10.4",
"description": "Compile ES2015 block scoping (const and let) to ES5",
"repository": {
"type": "git",
"url": "https://github.com/babel/babel.git",
"directory": "packages/babel-plugin-transform-block-scoping"
},
"license": "MIT",
"publishConfig": {
"access": "public"
},
"main": "lib/index.js",
"dependencies": {
"@babel/helper-plugin-utils": "^7.10.4"
},
"keywords": [
"babel-plugin"
],
"peerDependencies": {
"@babel/core": "^7.0.0-0"
},
"devDependencies": {
"@babel/core": "^7.10.4",
"@babel/helper-plugin-test-runner": "^7.10.4"
}
}