falafel-loader

Loader to run falafel AST transforms.

Installation

npm i -D falafel-loader

Usage

This example fixes an IE angular bug.

Add it into the pipeline for a js file & add falafel config:

modules: {
falafel: function (node) {
if (node.type === 'FunctionExpression' && node.id && node.id.name === 'interpolateFnWatchAction') {
var expr = node && node.body && node.body.body && node.body.body[0];

if (expr && expr.source() === 'node[0].nodeValue = value;') {
expr.update('if (!node[0].nodeValue) { return; } ' + expr.source());
}
}
},
...
loaders: [
...
{
test: /angular\.js$/,
loader: 'falafel-loader'
}
...
]
...
}

This will rewrite the interpolateFnWatchAction with the necessary null check. You can implement any falafel function that you want, however.

TODO

* Allow multiple falafel pipelines.