Re: When %dprec and %merge aren't enough...

[Hans Aberg]

On 11 Nov 2008, at 08:10, Marcel Laverdet wrote:

> It's unclear here whether the child of the if statement should be  
> an empty Block or an empty ObjectLiteral. The ECMAScript spec  
> addresses this simply:
> "Note that an ExpressionStatement cannot start with an opening  
> curly brace because that might make it ambiguous with a Block."

You might try defining two pairs of braces, one for the blocks, an  
one for the statements. This should disambiguate the grammar. Then  
set a context switch that tells the lexer which type to return; the  
switch is changed from the parser.

  Hans