     let statement = classDeclaration >>> `import` >>> function >>> expression
     let program = skip >>> statement
 
-    return function
+    return expression
 }
 
 //    let listPattern = (list | listTemplate).tag("listPattern")

    let assign = skip >>> str("=") >>> skip
    let functionBody = expression.tag("body") >>> skip
    let ifKeyword = space >>> str("IF") >>> space
    let `guard` = (ifKeyword >>> expression).maybe.tag("guard")
    let function = functionSubject >>> dot >>> functionName >>> functionParameters.maybe >>> `guard` >>> assign >>> functionBody

    // Lambdas.



    // Functions.

    let parameter = pattern
    let functionSubject = parameter.tag("defunSubject")
    let functionName = name.tag("FUNC")
