grails/grails-core — pull request #546 by candrews (2014-10-22 17:11:41+00:00)
Title: GRAILS-11796: Add decorators to the GSP source

Adds a new setGroovyPageSourceInputStreamDecorators method that allows for the decoration of the InputStream of the GSP.

To use this functionality, I imagine plugins or applications (via BootStrap.groovy or some equivalent mechanism) can call:
groovyPagesTemplateEngine.setGroovyPageSourceInputStreamDecorators(list)