code: function srcToChunks(src, opts, ctx) {
      opts = opts || {}
      var ast = parse(src, opts)
      // check semantic
      var errors = semantic.checkAst(ast, ctx)
      // there is semantic errors?
      if (errors) {
          if (opts.printErrors !== false) {
                  errors.forEach(function(e){
                  console.error(e)
              })
          }
          return
      // everything ok
      } else {
          return compiler.astToChunks(ast, ctx, opts.format)
      }
  }
docs: transform RamdaScript source to chunks