# glsl-min-stream

Transform [glsl-parser](https://github.com/chrisdickinson/glsl-parser.git) AST nodes
on-the-fly by renaming variables into shorter forms.

```javascript
var tokenizer = require('glsl-tokenizer')
  , parser = require('glsl-parser')
  , deparser = require('glsl-deparser')
  , minify = require('./index')

process.stdin
  .pipe(tokenizer())
  .pipe(parser())
  .pipe(minify())           // <-- the minifier
  .pipe(deparser(false))    // <-- "false" == no unnecessary whitespace, please.
  .pipe(process.stdout)

process.stdin.resume()
```

# API

### minifier = require('glsl-minifier')([safe_word_list], should_mutate_storages) -> minifier stream

Create a [through stream](https://github.com/dominictarr/stream-spec#through-sync-writable-and-readable-aka-filter) that rewrites incoming declared variables.

* `safe_word_list` defaults to `["main"]` so that the main function is not overridden.
* `should_mutate_storages`, a boolean defaulted to `false`, determines whether the minifier should attempt to rewrite variables declared as `varying`, `attribute`, or `uniform` (usually you do not want to do this, as the client program is expecting specific variable names).

# License

MIT