Ejemplo n.º 1
1
TOKEN parameter_declaration(void)
{
    SYMBOL s = symalloc();
    TOKEN dec = NULL;
    declaration_specifiers(s);
    dec = declarator(s);
    set_token_symbol_type(dec,s);

    return dec;
}
Ejemplo n.º 2
0
TOKEN external_declaration(void)
{
    TOKEN ext_declaration = NULL;
    SYMBOL sym = symalloc(); //symbol for the declaration we are dealing with
    //used as a temporary place to aggregate data about the declaration until
    //we can install the symbol

    //NOTE: we check for a global declaration first because we can easily use
    //the information we aggregate in the SYMBOL sym and pass it on rather than
    //having to backtrack like we would if we looked for a function definition first
    setStorageClass(sym, STATIC_STORAGE_CLASS);
    ext_declaration = declaration(sym);
    if( NULL == ext_declaration )
    {
        //we have a function definition instead of a global variable declaration
        //and functions default to external storage
        setStorageClass(sym, EXTERNAL_STORAGE_CLASS); 
        ext_declaration = function_definition(sym);
    }
    else
    {
        ext_declaration = NULL; //we don't want the variable declaration to make its way into the parse tree, so return NULL
    }

    return ext_declaration;
}
Ejemplo n.º 3
0
/* Allocate a new entry for name and install it. */
struct symbol *
install(char *name, ScopeType scope)
{
   int h;
   struct symbol *p;

   p = symalloc(name);
   h = hash(name);
   p->next = htab[h];
   p->scope = scope;
   p->type = MincVoidType;
   htab[h] = p;
   p->v.number = 0.0;

   DPRINT2("install ('%s') => %p\n", name, p);
   return p;
}