[!CAUTION] This package has been migrated to JS-X-Ray workspaces

estree-ast-utils

Utilities for AST (ESTree compliant)

Getting Started

This package is available in the Node Package Repository and can be easily installed with npm or yarn.

$ npm i @nodesecure/estree-ast-utils
# or
$ yarn add @nodesecure/estree-ast-utils

Usage example

import { VariableTracer } from "@nodesecure/estree-ast-utils";

const tracer = new VariableTracer().enableDefaultTracing();

const data = tracer.getDataFromIdentifier("identifier...here");
console.log(data);

API

arrayExpressionToString(node): IterableIterator< string >

Translate an ESTree ArrayExpression into an iterable of Literal value. ```js ["foo", "bar"]; ``` will return `"foo"` then `"bar"`.

concatBinaryExpression(node, options): IterableIterator< string >

Return all Literal part of a given Binary Expression. ```js "foo" + "bar"; ``` will return `"foo"` then `"bar"`. One of the options of the method is `stopOnUnsupportedNode`, if true it will throw an Error if the left or right side of the Expr is not a supported type.

getCallExpressionIdentifier(node): string | null

Return the identifier name of the CallExpression (or null if there is none). ```js foobar(); ``` will return `"foobar"`.

getMemberExpressionIdentifier(node): IterableIterator< string >

Return the identifier name of the CallExpression (or null if there is none). ```js foo.bar(); ``` will return `"foo"` then `"bar"`.

getVariableDeclarationIdentifiers(node): IterableIterator< string >

Get all variables identifier name. ```js const [foo, bar] = [1, 2]; ``` will return `"foo"` then `"bar"`.

isLiteralRegex(node): boolean

Return `true` if the given Node is a Literal Regex Node. ```js /^hello/g; ```