Example does not work

`
ShaderDSL.js:7402 Uncaught ReferenceError: CAST is not defined
    at drive (ShaderDSL.js:7402)
    at Object.analyze (ShaderDSL.js:8362)
    at Object.compileVertexShader (ShaderDSL.js:5818)
    at Object.compileGladderProgram (ShaderDSL.js:5876)
    at cube-noglsl.html:54
`
I think that your enum that you use for ast.type is not on the git project.