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Reduce install size by 30% #2876

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Reduce install size by 30% #2876

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3a6b938
Reduce install size by 30%
developit Dec 14, 2020
7c3b1f9
Remove [].includes() and Object.values() polyfills
developit Dec 14, 2020
fdbb6c6
another fromEntries usage
developit Dec 14, 2020
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11 changes: 7 additions & 4 deletions index.js
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@@ -1,8 +1,5 @@
'use strict';

const fromEntries = require('object.fromentries');
const entries = require('object.entries');
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this plugin supports node 4, which lacks Object.entries, so we still need the polyfill.


/* eslint-disable global-require */
const allRules = {
'boolean-prop-naming': require('./lib/rules/boolean-prop-naming'),
Expand Down Expand Up @@ -97,8 +94,14 @@ const allRules = {
};
/* eslint-enable */

const fromEntries = Object.fromEntries || function fromEntries(entries) {
const obj = {};
for (const [key, value] of entries) obj[key] = value;
return obj;
}
Comment on lines +97 to +101
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inlining a polyfill (one that's not matching the spec) is a nonstarter.

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Why not rewrite it to avoid the expensive polyfill then?

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The polyfill isn't expensive, it's the cheapest possible way to correctly implement the method.


function filterRules(rules, predicate) {
return fromEntries(entries(rules).filter((entry) => predicate(entry[1])));
return fromEntries(Object.entries(rules).filter((entry) => predicate(entry[1])));
}

function configureAsError(rules) {
Expand Down
10 changes: 4 additions & 6 deletions lib/util/Components.js
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Expand Up @@ -6,8 +6,6 @@
'use strict';

const doctrine = require('doctrine');
const arrayIncludes = require('array-includes');
const values = require('object.values');
Comment on lines -9 to -10
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node 4 also lacks these functions.


const variableUtil = require('./variable');
const pragmaUtil = require('./pragma');
Expand Down Expand Up @@ -562,7 +560,7 @@ function componentRule(rule, context) {
*/
getDetectedComponents() {
const list = components.list();
return values(list).filter((val) => {
return Object.values(list).filter((val) => {
if (val.node.type === 'ClassDeclaration') {
return true;
}
Expand Down Expand Up @@ -590,7 +588,7 @@ function componentRule(rule, context) {
nodeWrapsComponent(node) {
const childComponent = this.getNameOfWrappedComponent(node.arguments);
const componentList = this.getDetectedComponents();
return !!childComponent && arrayIncludes(componentList, childComponent);
return !!childComponent && componentList.includes(childComponent);
},

isPragmaComponentWrapper(node) {
Expand All @@ -600,11 +598,11 @@ function componentRule(rule, context) {
const propertyNames = ['forwardRef', 'memo'];
const calleeObject = node.callee.object;
if (calleeObject && node.callee.property) {
return arrayIncludes(propertyNames, node.callee.property.name)
return propertyNames.includes(node.callee.property.name)
&& calleeObject.name === pragma
&& !this.nodeWrapsComponent(node);
}
return arrayIncludes(propertyNames, node.callee.name) && this.isDestructuredFromPragmaImport(node.callee.name);
return propertyNames.includes(node.callee.name) && this.isDestructuredFromPragmaImport(node.callee.name);
},

/**
Expand Down
6 changes: 4 additions & 2 deletions lib/util/defaultProps.js
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Expand Up @@ -4,7 +4,6 @@

'use strict';

const fromEntries = require('object.fromentries');
const astUtil = require('./ast');
const propsUtil = require('./props');
const variableUtil = require('./variable');
Expand Down Expand Up @@ -90,7 +89,10 @@ module.exports = function defaultPropsInstructions(context, components, utils) {
const newDefaultProps = Object.assign(
{},
defaults,
fromEntries(defaultProps.map((prop) => [prop.name, prop]))
defaultProps.reduce((obj, prop) => {
obj[prop.name] = prop;
return obj;
}, {})
);

components.set(component.node, {
Expand Down