Package Exports

eslint-traverse

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (eslint-traverse) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

eslint-traverse

Create a sub-traversal of an AST node in your ESLint plugin

Very fast
Supports "Skipping" & "Stopping" (See below)
Provides AST ancestor information for every node (Babel-style "Path" object)

Install

npm install --save eslint-traverse

Example

import traverse from "eslint-traverse"

export default function(context) {
  return {
    FunctionDeclaration(node) {
      traverse(context, node, path => {
        console.log(path)
        // Path {
        //   node: Node,
        //   parent: Node | null,
        //   parentKey: string | null
        //   parentPath: Path | null
        // }

        if (path.node.type === "FunctionDeclaration") {
          return traverse.SKIP
        }
      })
    }
  }
}

Skipping

If you want to completely ignore a branch of the AST, without visiting any of its children, you can return traverse.SKIP from the visitor.

traverse(context, node, path => {
  if (path.node.type === "FunctionDeclaration") {
    return traverse.SKIP
  }
  // ...
})

Stopping

If you want to stop the traversal completely, without visiting any more nodes anywhere in the AST, you can return traversal.STOP from the visitor.

traverse(context, node, path => {
  if (path.node.type === "Identifier" && path.node.name === "THING_I_WAS_SEARCHING_FOR") {
    return traverse.STOP
  }
  // ...
})