Treating a task as a Dependency

Help/Discuss
1

I would like to be able to use a Task to generate a Dependency, for example:

configurations {
    transformerInput
}
dependencies {
    transformerInput "com.someone:somepackage:version"
}
task('transform', type: BinaryTransform) { // BinaryTransform extends AbstractArchiveTask
    from configurations.transformerInput // a FileCollection
}
// And now the magic:
dependencies {
    compile transform
}

But that last bit where I want to make a task magically be treated as a dependency source doesn’t work. I can treat it as an artifact because it generates an Archive, but I can’t treat it as a class path entry. Saying

artifacts {
    compile transform
}

does work, but does not produce the desired effect, that is, running compileJava or jar does not invoke transform and put the result on the classpath.

HALP!

Thank you all.

2

Edit: You can use a file collection dependency.

dependencies {
     transformerInput files(transform)
}