Astral Pass

Pass helper for Astral that simplifies traversal.

Example

Below is a simple example.

1var myPass = require('astral-pass')();
2
3myPass.name = 'myPass';
4myPass.prereqs = [ /* other pass names here */ ];
5
6myPass.
7  when({
8    // ... AST chunk
9  }).
10  when(function (chunk, info) {
11    // return true or false
12  }).
13  do(function (chunk, info) {
14
15  });

More Complicated Passes

You can introduce more complicated behavior by composing passes. This is done by modifying a pass's prereqs property.

1var astralPass = require('astral-pass');
2
3// p1 needs some info to do its transformations
4
5var p1 = astralPass();
6p1.name = 'myPass';
7p1.prereqs = [ 'p2' ];
8
9p1.
10  when( ... ).
11  do( ... );
12
13// p2 gathers the info for p1
14
15var p2 = astralPass();
16p2.name = 'myPass';
17
18p2.
19  when( ... ).
20  do( ... );
21

I recommend namespacing passes with :.

License

MIT