@babel/helper-member-expression-to-functions
Advanced tools
Comparing version 7.0.0-beta.49 to 7.0.0-beta.50
| { | ||
| "name": "@babel/helper-member-expression-to-functions", | ||
| "version": "7.0.0-beta.49", | ||
| "version": "7.0.0-beta.50", | ||
| "description": "Helper function to replace certain member expressions with function calls", | ||
@@ -10,4 +10,4 @@ "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-member-expression-to-functions", | ||
| "dependencies": { | ||
| "@babel/types": "7.0.0-beta.49" | ||
| "@babel/types": "7.0.0-beta.50" | ||
| } | ||
| } |
| # @babel/helper-member-expression-to-functions | ||
| Helper function to replace certain member expressions with function calls | ||
| > Helper function to replace certain member expressions with function calls | ||
| ## Usage | ||
| See our website [@babel/helper-member-expression-to-functions](https://new.babeljs.io/docs/en/next/babel-helper-member-expression-to-functions.html) for more information. | ||
| > Designed for internal Babel use. | ||
| ## Install | ||
| Traverses the `path` using the supplied `visitor` and an augmented `state`. | ||
| Using npm: | ||
| ```js | ||
| const visitor = { | ||
| MemberExpression(memberPath, state) { | ||
| ```sh | ||
| npm install --save @babel/helper-member-expression-to-functions | ||
| ``` | ||
| if (someCondition(memberPath)) { | ||
| or using yarn: | ||
| // The handle method is supplied by memberExpressionToFunctions. | ||
| // It should be called whenever a MemberExpression should be | ||
| // converted into the proper function calls. | ||
| state.handle(memberPath); | ||
| } | ||
| }, | ||
| }; | ||
| // The helper requires three special methods on state: `get`, `set`, and | ||
| // `call`. | ||
| // Optionally, a special `memoise` method may be defined, which gets | ||
| // called if the member is in a self-referential update expression. | ||
| // Everything else will be passed through as normal. | ||
| const state = { | ||
| get(memberPath) { | ||
| // Return some AST that will get the member | ||
| return t.callExpression( | ||
| this.file.addHelper('superGet'), | ||
| [t.thisExpression(), memberPath.node.property] | ||
| ); | ||
| }, | ||
| set(memberPath, value) { | ||
| // Return some AST that will set the member | ||
| return t.callExpression( | ||
| this.file.addHelper('superSet'), | ||
| [t.thisExpression(), memberPath.node.property, value] | ||
| ); | ||
| }, | ||
| call(memberPath, args) { | ||
| // Return some AST that will call the member with the proper context | ||
| // and args | ||
| return t.callExpression( | ||
| t.memberExpression(this.get(memberPath), t.identifier("apply")), | ||
| [t.thisExpression(), t.arrayExpression(args)] | ||
| ); | ||
| }, | ||
| memoise(memberPath) { | ||
| const { node } = memberPath; | ||
| if (node.computed) { | ||
| MEMOISED.set(node, ...); | ||
| } | ||
| }, | ||
| // The handle method is provided by memberExpressionToFunctions. | ||
| // handle(memberPath) { ... } | ||
| // Other state stuff is left untouched. | ||
| someState: new Set(), | ||
| }; | ||
| // Replace all the special MemberExpressions in rootPath, as determined | ||
| // by our visitor, using the state methods. | ||
| memberExpressionToFunctions(rootPath, visitor, state); | ||
| ```sh | ||
| yarn add --save @babel/helper-member-expression-to-functions | ||
| ``` |
No alert changes
Worsened metrics
- Total package byte prevSize
- decreased by-28.86%
3889
- Number of package files
- decreased by-25%
3
- Number of lines in readme file
- decreased by-73.68%
20
Dependency changes
+ Added@babel/types@7.0.0-beta.50(transitive)
- Removed@babel/types@7.0.0-beta.49(transitive)
Updated@babel/types@7.0.0-beta.50