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node-source-walk

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node-source-walk - npm Package Compare versions

Comparing version 3.0.3 to 3.1.0

25

index.js

@@ -5,6 +5,15 @@ var babylon = require('babylon');

* @param {Object} options - Options to configure parser
* @param {Object} options.parser - An object with a parse method that returns an AST
*/
module.exports = function(options) {
this.options = options || {};
this.options.plugins = this.options.plugins || [
options = options || {};
this.parser = options.parser || babylon;
if (options.parser) {
// We don't want to send that down to the actual parser
delete options.parser;
}
this.options = options;
this.options.plugins = options.plugins || [
'jsx',

@@ -26,3 +35,4 @@ 'flow',

this.options.sourceType = this.options.sourceType || 'module';
this.options.allowHashBang = options.allowHashBang || true;
this.options.sourceType = options.sourceType || 'module';

@@ -39,4 +49,5 @@ // We use global state to stop the recursive traversal of the AST

module.exports.prototype.parse = function(src, options) {
options = options || {};
options = options || this.options;
// Keep around for consumers of parse that supply their own options
if (typeof options.allowHashBang === 'undefined') {

@@ -46,3 +57,3 @@ options.allowHashBang = true;

return babylon.parse(src, options);
return this.parser.parse(src, options);
};

@@ -90,5 +101,3 @@

var ast = typeof src === 'object' ?
src :
this.parse(src, this.options);
var ast = typeof src === 'object' ? src : this.parse(src);

@@ -95,0 +104,0 @@ this.traverse(ast, cb);

{
"name": "node-source-walk",
"version": "3.0.3",
"version": "3.1.0",
"description": "Execute a callback on every node of a source code's AST and stop walking when you see fit",

@@ -5,0 +5,0 @@ "main": "index.js",

@@ -44,2 +44,15 @@ ### node-source-walk [![npm](http://img.shields.io/npm/v/node-source-walk.svg)](https://npmjs.org/package/node-source-walk) [![npm](http://img.shields.io/npm/dm/node-source-walk.svg)](https://npmjs.org/package/node-source-walk)

### Swap out the parser
If you want to supply your own parser, you can do:
```js
var walker = new Walker({
parser: mySweetParser
});
```
* The custom parser must have a `.parse` method that takes in a string and returns an object/AST.
* All of the other options supplied to the Walker constructor will be passed along as parser options to your chosen parser.
### Public Members

@@ -61,1 +74,6 @@

* Callback should expect the first argument to be an AST node, similar to `walk`'s callback.
`parse(src)`
* Uses the options supplied to Walker to parse the given source code string and return its AST
using the configured parser (or babylon by default).
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