Method isFRef

chapter24/src/main/java/com/seaofnodes/simple/Var.java:40–40

()

    // Forward reference variables (not types) must be BOTTOM and
    // distinct from inferred variables
    public boolean isFRef() { return _fref; }

    public void defFRef( Type type, boolean xfinal, Parser.Lexer loc ) {
        assert isFRef() && xfinal;