Archive helper-explode-class and helper-bindify-decorators (#13160)
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Huáng Jùnliàng
GitHub
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src
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test
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*.log
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# @babel/helper-bindify-decorators
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> Helper function to bindify decorators
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See our website [@babel/helper-bindify-decorators](https://babeljs.io/docs/en/babel-helper-bindify-decorators) for more information.
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## Install
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Using npm:
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```sh
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npm install --save-dev @babel/helper-bindify-decorators
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```
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or using yarn:
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```sh
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yarn add @babel/helper-bindify-decorators --dev
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```
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{
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"name": "@babel/helper-bindify-decorators",
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"version": "7.12.13",
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"description": "Helper function to bindify decorators",
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"repository": {
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"type": "git",
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"url": "https://github.com/babel/babel.git",
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"directory": "packages/babel-helper-bindify-decorators"
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},
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"homepage": "https://babel.dev/docs/en/next/babel-helper-bindify-decorators",
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"license": "MIT",
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"publishConfig": {
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"access": "public"
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},
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"main": "lib/index.js",
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"dependencies": {
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"@babel/types": "workspace:^7.12.13"
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},
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"devDependencies": {
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"@babel/traverse": "workspace:*"
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}
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}
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import type { NodePath } from "@babel/traverse";
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import * as t from "@babel/types";
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export default function bindifyDecorators(
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decorators: ReadonlyArray<NodePath<t.Decorator>>,
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): void {
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for (const decoratorPath of decorators) {
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const decorator = decoratorPath.node;
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const expression = decorator.expression;
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if (!t.isMemberExpression(expression)) continue;
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const temp = decoratorPath.scope.maybeGenerateMemoised(expression.object);
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let ref;
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const nodes = [];
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if (temp) {
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ref = temp;
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nodes.push(t.assignmentExpression("=", temp, expression.object));
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} else {
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ref = expression.object;
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}
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nodes.push(
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t.callExpression(
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t.memberExpression(
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t.memberExpression(ref, expression.property, expression.computed),
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t.identifier("bind"),
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),
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[ref],
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),
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);
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if (nodes.length === 1) {
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decorator.expression = nodes[0];
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} else {
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decorator.expression = t.sequenceExpression(nodes);
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}
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}
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}
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src
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test
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*.log
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# @babel/helper-explode-class
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> Helper function to explode class
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See our website [@babel/helper-explode-class](https://babeljs.io/docs/en/babel-helper-explode-class) for more information.
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## Install
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Using npm:
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```sh
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npm install --save-dev @babel/helper-explode-class
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```
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or using yarn:
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```sh
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yarn add @babel/helper-explode-class --dev
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```
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{
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"name": "@babel/helper-explode-class",
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"version": "7.12.13",
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"description": "Helper function to explode class",
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"repository": {
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"type": "git",
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"url": "https://github.com/babel/babel.git",
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"directory": "packages/babel-helper-explode-class"
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},
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"homepage": "https://babel.dev/docs/en/next/babel-helper-explode-class",
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"license": "MIT",
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"publishConfig": {
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"access": "public"
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},
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"main": "lib/index.js",
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"dependencies": {
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"@babel/helper-bindify-decorators": "workspace:^7.12.13",
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"@babel/types": "workspace:^7.12.13"
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},
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"devDependencies": {
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"@babel/traverse": "workspace:*"
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}
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}
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import bindifyDecorators from "@babel/helper-bindify-decorators";
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import type { NodePath } from "@babel/traverse";
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import * as t from "@babel/types";
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export default function (classPath) {
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classPath.assertClass();
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const memoisedExpressions = [];
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function maybeMemoise(path) {
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if (!path.node || path.isPure()) return;
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const uid = classPath.scope.generateDeclaredUidIdentifier();
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memoisedExpressions.push(t.assignmentExpression("=", uid, path.node));
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path.replaceWith(uid);
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}
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function memoiseDecorators(paths: Array<NodePath>) {
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if (!Array.isArray(paths) || !paths.length) return;
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// ensure correct evaluation order of decorators
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paths = paths.reverse();
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// bind decorators if they're member expressions
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bindifyDecorators(paths);
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for (const path of paths) {
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maybeMemoise(path);
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}
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}
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maybeMemoise(classPath.get("superClass"));
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memoiseDecorators(classPath.get("decorators"), true);
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const methods: Array<NodePath> = classPath.get("body.body");
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for (const methodPath of methods) {
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if (methodPath.is("computed")) {
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maybeMemoise(methodPath.get("key"));
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}
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if (methodPath.has("decorators")) {
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memoiseDecorators(classPath.get("decorators"));
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}
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}
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if (memoisedExpressions) {
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classPath.insertBefore(
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memoisedExpressions.map(expr => t.expressionStatement(expr)),
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);
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}
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}
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19
yarn.lock
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yarn.lock
@ -352,15 +352,6 @@ __metadata:
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languageName: unknown
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languageName: unknown
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linkType: soft
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linkType: soft
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"@babel/helper-bindify-decorators@workspace:^7.12.13, @babel/helper-bindify-decorators@workspace:packages/babel-helper-bindify-decorators":
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version: 0.0.0-use.local
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resolution: "@babel/helper-bindify-decorators@workspace:packages/babel-helper-bindify-decorators"
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dependencies:
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"@babel/traverse": "workspace:*"
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"@babel/types": "workspace:^7.12.13"
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languageName: unknown
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linkType: soft
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"@babel/helper-builder-binary-assignment-operator-visitor@npm:^7.12.13":
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"@babel/helper-builder-binary-assignment-operator-visitor@npm:^7.12.13":
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version: 7.12.13
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version: 7.12.13
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resolution: "@babel/helper-builder-binary-assignment-operator-visitor@npm:7.12.13"
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resolution: "@babel/helper-builder-binary-assignment-operator-visitor@npm:7.12.13"
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languageName: unknown
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languageName: unknown
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linkType: soft
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linkType: soft
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"@babel/helper-explode-class@workspace:packages/babel-helper-explode-class":
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version: 0.0.0-use.local
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resolution: "@babel/helper-explode-class@workspace:packages/babel-helper-explode-class"
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dependencies:
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"@babel/helper-bindify-decorators": "workspace:^7.12.13"
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"@babel/traverse": "workspace:*"
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"@babel/types": "workspace:^7.12.13"
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languageName: unknown
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linkType: soft
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"@babel/helper-fixtures@workspace:*, @babel/helper-fixtures@workspace:^7.13.13, @babel/helper-fixtures@workspace:packages/babel-helper-fixtures":
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"@babel/helper-fixtures@workspace:*, @babel/helper-fixtures@workspace:^7.13.13, @babel/helper-fixtures@workspace:packages/babel-helper-fixtures":
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version: 0.0.0-use.local
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version: 0.0.0-use.local
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resolution: "@babel/helper-fixtures@workspace:packages/babel-helper-fixtures"
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resolution: "@babel/helper-fixtures@workspace:packages/babel-helper-fixtures"
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