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Update README.rdoc
Commit Description:
Update README.rdoc
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node_modules/get-assigned-identifiers/index.js
| 57 lines
| 1.5 KiB
| application/javascript
| JavascriptLexer
|
| r789 | var assert = require('assert') | |||
| /** | ||||
| * Get a list of all identifiers that are initialised by this (possibly destructuring) | ||||
| * node. | ||||
| * | ||||
| * eg with input: | ||||
| * | ||||
| * var { a: [b, ...c], d } = xyz | ||||
| * | ||||
| * this returns the nodes for 'b', 'c', and 'd' | ||||
| */ | ||||
| module.exports = function getAssignedIdentifiers (node, identifiers) { | ||||
| assert.equal(typeof node, 'object', 'get-assigned-identifiers: node must be object') | ||||
| assert.equal(typeof node.type, 'string', 'get-assigned-identifiers: node must have a type') | ||||
| identifiers = identifiers || [] | ||||
| if (node.type === 'ImportDeclaration') { | ||||
| node.specifiers.forEach(function (el) { | ||||
| getAssignedIdentifiers(el, identifiers) | ||||
| }) | ||||
| } | ||||
| if (node.type === 'ImportDefaultSpecifier' || node.type === 'ImportNamespaceSpecifier' || node.type === 'ImportSpecifier') { | ||||
| node = node.local | ||||
| } | ||||
| if (node.type === 'RestElement') { | ||||
| node = node.argument | ||||
| } | ||||
| if (node.type === 'ArrayPattern') { | ||||
| node.elements.forEach(function (el) { | ||||
| // `el` might be `null` in case of `[x,,y] = whatever` | ||||
| if (el) { | ||||
| getAssignedIdentifiers(el, identifiers) | ||||
| } | ||||
| }) | ||||
| } | ||||
| if (node.type === 'ObjectPattern') { | ||||
| node.properties.forEach(function (prop) { | ||||
| if (prop.type === 'Property') { | ||||
| getAssignedIdentifiers(prop.value, identifiers) | ||||
| } else if (prop.type === 'RestElement') { | ||||
| getAssignedIdentifiers(prop, identifiers) | ||||
| } | ||||
| }) | ||||
| } | ||||
| if (node.type === 'Identifier') { | ||||
| identifiers.push(node) | ||||
| } | ||||
| return identifiers | ||||
| } | ||||