🚀 go-pugleaf

class ByteSink;

Given the following code:

	class OutputStream {
	public:
		OutputStream( ByteSink & );
	};

	inline
	OutputStream::OutputStream( ByteSink & bs )
	{
	}

GCC 2.1 produces a

	stdin:3: parse error before `&'

in the class declaration.  It would be nicer to get an error message
that says that ByteSink is undeclared, but at least the compiler doesn't
die.  In the declaration of OutputStream::OutputStream, we get a
better error message

	stdin:7: `ByteSink' undeclared, outside of functions
	stdin:7: `bs' undeclared, outside of functions

but this time followed by a core dump (abort).

The abort happens in `grokdeclarator' in file cp-decl.c, line 6297.
`grokdeclarator' was called by `start_function'.  The code surrounding
the call to `abort' is

        if (parmlist_is_random (TREE_OPERAND (decl, 1)))
          {
	    decl = TREE_OPERAND (decl, 0);
	    if (TREE_CODE (decl) == SCOPE_REF)
	      {
		if (TREE_COMPLEXITY (decl))
->		  abort ();
		decl = TREE_OPERAND (decl, 1);
	      }
	    if (TREE_CODE (decl) == IDENTIFIER_NODE)
	      name = IDENTIFIER_POINTER (decl);
	    if (name)
	      error ("bad parameter list specification for function `%s'",
		     name);
	    else
	      error ("bad parameter list specification for function");
            return 0;
          }
      bot:

According to the code, the problem seems to be that the tree is too complex.

So, let's try to make it less complex; we delete `inline'.  The result
is an additional (bogus) error message instead of aborting:

	stdin:6: `ByteSink' undeclared, outside of functions 
	stdin:6: `bs' undeclared, outside of functions 
	stdin:7: no `OutputStream' member function declared in class 

--Gerald