/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/* Constructor w/ no action string and contextual precedence
* defined */
public production(non_terminal lhs_sym, production_part[] rhs_parts, int rhs_l, int prec_num, int prec_side) : this(lhs_sym, rhs_parts, rhs_l, null)
{
InitBlock();
/* set the precedence */
set_precedence_num(prec_num);
set_precedence_side(prec_side);
}
/*-----------------------------------------------------------*/
/*--- Constructor(s) ----------------------------------------*/
/*-----------------------------------------------------------*/
/// <summary>Full constructor. This constructor accepts a LHS non terminal,
/// an array of RHS parts (including terminals, non terminals, and
/// actions), and a string for a final reduce action. It does several
/// manipulations in the process of creating a production object.
/// After some validity checking it translates labels that appear in
/// actions into code for accessing objects on the runtime parse stack.
/// It them merges adjacent actions if they appear and moves any trailing
/// action into the final reduce actions string. Next it removes any
/// embedded actions by factoring them out with new action productions.
/// Finally it assigns a unique index to the production.<p>
/// *
/// Factoring out of actions is accomplished by creating new "hidden"
/// non terminals. For example if the production was originally: <pre>
/// A ::= B {action} C D
/// </pre>
/// then it is factored into two productions:<pre>
/// A ::= B X C D
/// X ::= {action}
/// </pre>
/// (where X is a unique new non terminal). This has the effect of placing
/// all actions at the end where they can be handled as part of a reduce by
/// the parser.
/// </summary>
public production(non_terminal lhs_sym, production_part[] rhs_parts, int rhs_l, string action_str)
{
InitBlock();
int i;
action_part tail_action;
System.String declare_str;
int rightlen = rhs_l;
/* remember the length */
if (rhs_l >= 0)
{
_rhs_length = rhs_l;
}
else if (rhs_parts != null)
{
_rhs_length = rhs_parts.Length;
}
else
{
_rhs_length = 0;
}
/* make sure we have a valid left-hand-side */
if (lhs_sym == null)
{
throw new internal_error("Attempt to construct a production with a null LHS");
}
/* I'm not translating labels anymore, I'm adding code to declare
* labels as valid variables. This way, the users code string is
* untouched
* 6/96 frankf */
/* check if the last part of the right hand side is an action. If
* it is, it won't be on the stack, so we don't want to count it
* in the rightlen. Then when we search down the stack for a
* Symbol, we don't try to search past action */
if (rhs_l > 0)
{
if (rhs_parts[rhs_l - 1].is_action())
{
rightlen = rhs_l - 1;
}
else
{
rightlen = rhs_l;
}
}
/* get the generated declaration code for the necessary labels. */
declare_str = declare_labels(rhs_parts, rightlen, action_str);
if (action_str == null)
{
action_str = declare_str;
}
else
{
action_str = declare_str + action_str;
}
/* count use of lhs */
lhs_sym.note_use();
/* create the part for left-hand-side */
_lhs = new symbol_part(lhs_sym);
/* merge adjacent actions (if any) */
_rhs_length = merge_adjacent_actions(rhs_parts, _rhs_length);
/* strip off any trailing action */
tail_action = strip_trailing_action(rhs_parts, _rhs_length);
if (tail_action != null)
{
_rhs_length--;
}
/* Why does this run through the right hand side happen
* over and over? here a quick combination of two
* prior runs plus one I wanted of my own
* frankf 6/25/96 */
/* allocate and copy over the right-hand-side */
/* count use of each rhs symbol */
_rhs = new production_part[_rhs_length];
for (i = 0; i < _rhs_length; i++)
{
_rhs[i] = rhs_parts[i];
if (!_rhs[i].is_action())
{
((symbol_part)_rhs[i]).the_symbol().note_use();
if (((symbol_part)_rhs[i]).the_symbol() is terminal)
{
_rhs_prec = ((terminal)((symbol_part)_rhs[i]).the_symbol()).precedence_num();
_rhs_assoc = ((terminal)((symbol_part)_rhs[i]).the_symbol()).precedence_side();
}
}
}
/*now action string is really declaration string, so put it in front!
* 6/14/96 frankf */
if (action_str == null)
{
action_str = "";
}
if (tail_action != null && tail_action.code_string() != null)
{
action_str = action_str + "\t\t" + tail_action.code_string();
}
/* stash the action */
_action = new action_part(action_str);
/* rewrite production to remove any embedded actions */
remove_embedded_actions();
/* assign an index */
_index = next_index++;
/* put us in the global collection of productions */
SupportClass.PutElement(_all, _index, this);
/* put us in the production list of the lhs non terminal */
lhs_sym.add_production(this);
}
/// <summary>Constructor.
/// </summary>
/// <param name="base"> the production we are being factored out of.
/// </param>
/// <param name="lhs_sym"> the LHS symbol for this production.
/// </param>
/// <param name="rhs_parts"> array of production parts for the RHS.
/// </param>
/// <param name="rhs_len"> how much of the rhs_parts array is valid.
/// </param>
/// <param name="action_str">the trailing reduce action for this production.
///
/// </param>
public action_production(production base_Renamed, non_terminal lhs_sym, production_part[] rhs_parts, int rhs_len, string action_str)
: base(lhs_sym, rhs_parts, rhs_len, action_str)
{
_base_production = base_Renamed;
}
/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/// <summary>Constructor with no action string.
/// </summary>
public production(non_terminal lhs_sym, production_part[] rhs_parts, int rhs_l) : this(lhs_sym, rhs_parts, rhs_l, null)
{
InitBlock();
}
/// <summary>Method with the actual generated action code.
/// </summary>
public Symbol CUP_parser_do_action(int CUP_parser_act_num, lr_parser CUP_parser_parser, CUP.runtime.SymbolStack CUP_parser_stack, int CUP_parser_top)
{
/* Symbol object for return from actions */
Symbol CUP_parser_result;
/* select the action based on the action number */
switch (CUP_parser_act_num)
{
case 106:
// empty ::=
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(29, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 105:
// opt_semi ::= SEMI
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(7, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 104:
// opt_semi ::=
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(7, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 103:
// non_terminal ::= NONTERMINAL
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(8, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 102:
// non_terminal ::= NON TERMINAL
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(8, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 101:
// robust_id ::= error
{
System.String RESULT = null;
lexer.emit_error("Illegal use of reserved word");
RESULT = "ILLEGAL";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 100:
// robust_id ::= NONASSOC
{
System.String RESULT = null;
RESULT = "nonassoc";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 99:
// robust_id ::= RIGHT
{
System.String RESULT = null;
RESULT = "right";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 98:
// robust_id ::= LEFT
{
System.String RESULT = null;
RESULT = "left";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 97:
// robust_id ::= PRECEDENCE
{
System.String RESULT = null;
RESULT = "precedence";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 96:
// robust_id ::= START
{
System.String RESULT = null;
RESULT = "start";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 95:
// robust_id ::= WITH
{
System.String RESULT = null;
RESULT = "with";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 94:
// robust_id ::= SCAN
{
System.String RESULT = null;
RESULT = "scan";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 93:
// robust_id ::= INIT
{
System.String RESULT = null;
RESULT = "init";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 92:
// robust_id ::= NONTERMINAL
{
System.String RESULT = null;
RESULT = "nonterminal";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 91:
// robust_id ::= NON
{
System.String RESULT = null;
RESULT = "non";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 90:
// robust_id ::= TERMINAL
{
System.String RESULT = null;
RESULT = "terminal";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 89:
// robust_id ::= PARSER
{
System.String RESULT = null;
RESULT = "parser";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 88:
// robust_id ::= ACTION
{
System.String RESULT = null;
RESULT = "action";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 87:
// robust_id ::= CODE
{
System.String RESULT = null;
RESULT = "code";
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 86:
// robust_id ::= ID
{
System.String RESULT = null;
int the_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int the_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String the_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
RESULT = the_id;
CUP_parser_result = new Symbol(42, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 85:
// label_id ::= robust_id
{
System.String RESULT = null;
int the_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int the_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String the_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
RESULT = the_id;
CUP_parser_result = new Symbol(38, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 84:
// symbol_id ::= error
{
System.String RESULT = null;
lexer.emit_error("Illegal use of reserved word");
RESULT = "ILLEGAL";
CUP_parser_result = new Symbol(37, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 83:
// symbol_id ::= ID
{
System.String RESULT = null;
int the_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int the_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String the_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
RESULT = the_id;
CUP_parser_result = new Symbol(37, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 82:
// nt_id ::= error
{
System.String RESULT = null;
lexer.emit_error("Illegal use of reserved word");
RESULT = "ILLEGAL";
CUP_parser_result = new Symbol(36, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 81:
// nt_id ::= ID
{
System.String RESULT = null;
int the_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int the_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String the_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
RESULT = the_id;
CUP_parser_result = new Symbol(36, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 80:
// new_non_term_id ::= ID
{
System.Object RESULT = null;
int non_term_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int non_term_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String non_term_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* see if this non terminal has been declared before */
if (symbols[non_term_id] != null)
{
/* issue a message */
lexer.emit_error("CUP.runtime.Symbol \"" + non_term_id + "\" has already been declared");
}
else
{
if (multipart_name.Equals(""))
{
append_multipart("Object");
}
/* build the non terminal object */
non_terminal this_nt = new non_terminal(non_term_id, multipart_name);
/* put it in the non_terms table */
SupportClass.PutElement(non_terms, non_term_id, this_nt);
/* build a production_part and put it in the symbols table */
SupportClass.PutElement(symbols, non_term_id, new symbol_part(this_nt));
}
CUP_parser_result = new Symbol(26, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 79:
// new_term_id ::= ID
{
System.Object RESULT = null;
int term_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int term_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String term_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* see if this terminal has been declared before */
if (symbols[term_id] != null)
{
/* issue a message */
lexer.emit_error("CUP.runtime.Symbol \"" + term_id + "\" has already been declared");
}
else
{
/* if no type declared, declare one */
if (multipart_name.Equals(""))
{
append_multipart("Object");
}
/* build a production_part and put it in the table */
SupportClass.PutElement(symbols, term_id, new symbol_part(new terminal(term_id, multipart_name)));
}
CUP_parser_result = new Symbol(25, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 78:
// type_id ::= type_id LBRACK RBRACK
{
System.Object RESULT = null;
multipart_name = string.Concat(multipart_name, "[]");
CUP_parser_result = new Symbol(19, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 77:
// type_id ::= multipart_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(19, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 76:
// import_id ::= multipart_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(15, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 75:
// import_id ::= multipart_id DOT STAR
{
System.Object RESULT = null;
append_multipart("*");
CUP_parser_result = new Symbol(15, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 74:
// multipart_id ::= robust_id
{
System.Object RESULT = null;
int an_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int an_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String an_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
append_multipart(an_id);
CUP_parser_result = new Symbol(13, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 73:
// multipart_id ::= multipart_id DOT robust_id
{
System.Object RESULT = null;
int another_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int another_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String another_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
append_multipart(another_id);
CUP_parser_result = new Symbol(13, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 72:
// opt_label ::= empty
{
System.String RESULT = null;
RESULT = null;
CUP_parser_result = new Symbol(39, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 71:
// opt_label ::= COLON label_id
{
System.String RESULT = null;
int labidleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int labidright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String labid = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
RESULT = labid;
CUP_parser_result = new Symbol(39, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 70:
// prod_part ::= CODE_STRING
{
System.Object RESULT = null;
int code_strleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int code_strright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String code_str = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* add a new production part */
add_rhs_part(new action_part(code_str));
CUP_parser_result = new Symbol(24, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 69:
// prod_part ::= symbol_id opt_label
{
System.Object RESULT = null;
int symidleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left;
int symidright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).right;
System.String symid = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
int labidleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int labidright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String labid = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* try to look up the id */
production_part symb = (production_part) symbols[symid];
/* if that fails, symbol is undeclared */
if (symb == null)
{
if (lexer.error_count == 0)
lexer.emit_error("CUP.runtime.Symbol \"" + symid + "\" has not been declared");
}
else
{
/* add a labeled production part */
add_rhs_part(add_lab(symb, labid));
}
CUP_parser_result = new Symbol(24, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 68:
// prod_part_list ::= empty
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(23, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 67:
// prod_part_list ::= prod_part_list prod_part
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(23, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 66:
// rhs ::= prod_part_list
{
System.Object RESULT = null;
if (lhs_nt != null)
{
/* build the production */
production p = new production(lhs_nt, rhs_parts, rhs_pos);
/* if we have no start non-terminal declared and this is
the first production, make its lhs nt the start_nt
and build a special start production for it. */
if (start_nt == null)
{
start_nt = lhs_nt;
/* build a special start production */
new_rhs();
add_rhs_part(add_lab(new symbol_part(start_nt), "start_val"));
add_rhs_part(new symbol_part(terminal.EOF));
add_rhs_part(new action_part("RESULT = start_val;"));
emit.start_production = new production(non_terminal.START_nt, rhs_parts, rhs_pos);
new_rhs();
}
}
/* reset the rhs accumulation in any case */
new_rhs();
CUP_parser_result = new Symbol(28, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 65:
// rhs ::= prod_part_list PERCENT_PREC term_id
{
System.Object RESULT = null;
int term_nameleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int term_nameright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String term_name = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
CUP.symbol sym = null;
if (lhs_nt != null)
{
/* Find the precedence symbol */
if (term_name == null)
{
System.Console.Error.WriteLine("No terminal for contextual precedence");
sym = null;
}
else
{
sym = ((symbol_part) symbols[term_name]).the_symbol();
}
/* build the production */
production p;
if ((sym != null) && (sym is terminal))
{
p = new production(lhs_nt, rhs_parts, rhs_pos, ((terminal) sym).precedence_num(), ((terminal) sym).precedence_side());
((symbol_part) symbols[term_name]).the_symbol().note_use();
}
else
{
System.Console.Error.WriteLine("Invalid terminal " + term_name + " for contextual precedence assignment");
p = new production(lhs_nt, rhs_parts, rhs_pos);
}
/* if we have no start non-terminal declared and this is
the first production, make its lhs nt the start_nt
and build a special start production for it. */
if (start_nt == null)
{
start_nt = lhs_nt;
/* build a special start production */
new_rhs();
add_rhs_part(add_lab(new symbol_part(start_nt), "start_val"));
add_rhs_part(new symbol_part(terminal.EOF));
add_rhs_part(new action_part("RESULT = start_val;"));
if ((sym != null) && (sym is terminal))
{
emit.start_production = new production(non_terminal.START_nt, rhs_parts, rhs_pos, ((terminal) sym).precedence_num(), ((terminal) sym).precedence_side());
}
else
{
emit.start_production = new production(non_terminal.START_nt, rhs_parts, rhs_pos);
}
new_rhs();
}
}
/* reset the rhs accumulation in any case */
new_rhs();
CUP_parser_result = new Symbol(28, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 64:
// rhs_list ::= rhs
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(27, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 63:
// rhs_list ::= rhs_list BAR rhs
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(27, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 62:
// production ::= error NT_13 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_13
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(22, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 61:
// NT_13 ::=
{
System.Object RESULT = null;
lexer.emit_error("Syntax Error");
CUP_parser_result = new Symbol(56, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 60:
// production ::= nt_id NT_11 COLON_COLON_EQUALS NT_12 rhs_list SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_11
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).value_Renamed;
// propagate RESULT from NT_12
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed;
int lhs_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 5)).left;
int lhs_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 5)).right;
System.String lhs_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 5)).value_Renamed;
CUP_parser_result = new Symbol(22, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 5)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 59:
// NT_12 ::=
{
System.Object RESULT = null;
int lhs_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left;
int lhs_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).right;
System.String lhs_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed;
CUP_parser_result = new Symbol(55, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 58:
// NT_11 ::=
{
System.Object RESULT = null;
int lhs_idleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int lhs_idright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String lhs_id = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* lookup the lhs nt */
lhs_nt = (non_terminal) non_terms[lhs_id];
/* if it wasn't declared, emit a message */
if (lhs_nt == null)
{
if (lexer.error_count == 0)
lexer.emit_error("LHS non terminal \"" + lhs_id + "\" has not been declared");
}
/* reset the rhs accumulation */
new_rhs();
CUP_parser_result = new Symbol(54, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 57:
// production_list ::= production
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(12, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 56:
// production_list ::= production_list production
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(12, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 55:
// start_spec ::= empty
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(11, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 54:
// start_spec ::= START WITH nt_id NT_10 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_10
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
int start_nameleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left;
int start_nameright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).right;
System.String start_name = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed;
CUP_parser_result = new Symbol(11, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 53:
// NT_10 ::=
{
System.Object RESULT = null;
int start_nameleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int start_nameright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String start_name = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* verify that the name has been declared as a non terminal */
non_terminal nt = (non_terminal) non_terms[start_name];
if (nt == null)
{
lexer.emit_error("Start non terminal \"" + start_name + "\" has not been declared");
}
else
{
/* remember the non-terminal for later */
start_nt = nt;
/* build a special start production */
new_rhs();
add_rhs_part(add_lab(new symbol_part(start_nt), "start_val"));
add_rhs_part(new symbol_part(terminal.EOF));
add_rhs_part(new action_part("RESULT = start_val;"));
emit.start_production = new production(non_terminal.START_nt, rhs_parts, rhs_pos);
new_rhs();
}
CUP_parser_result = new Symbol(53, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 52:
// term_id ::= symbol_id
{
System.String RESULT = null;
int symleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int symright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String sym = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
/* check that the symbol_id is a terminal */
if (symbols[sym] == null)
{
/* issue a message */
lexer.emit_error("Terminal \"" + sym + "\" has not been declared");
}
RESULT = sym;
CUP_parser_result = new Symbol(41, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 51:
// terminal_id ::= term_id
{
System.String RESULT = null;
int symleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left;
int symright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right;
System.String sym = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).value_Renamed;
add_precedence(sym);
RESULT = sym;
CUP_parser_result = new Symbol(40, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 50:
// terminal_list ::= terminal_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(32, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 49:
// terminal_list ::= terminal_list COMMA terminal_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(32, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 48:
// preced ::= PRECEDENCE NONASSOC NT_9 terminal_list SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_9
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed;
CUP_parser_result = new Symbol(31, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 47:
// NT_9 ::=
{
System.Object RESULT = null;
update_precedence(assoc.nonassoc);
CUP_parser_result = new Symbol(52, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 46:
// preced ::= PRECEDENCE RIGHT NT_8 terminal_list SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_8
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed;
CUP_parser_result = new Symbol(31, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 45:
// NT_8 ::=
{
System.Object RESULT = null;
update_precedence(assoc.right);
CUP_parser_result = new Symbol(51, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 44:
// preced ::= PRECEDENCE LEFT NT_7 terminal_list SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_7
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).value_Renamed;
CUP_parser_result = new Symbol(31, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 43:
// NT_7 ::=
{
System.Object RESULT = null;
update_precedence(assoc.left);
CUP_parser_result = new Symbol(50, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 42:
// precedence_l ::= preced
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(33, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 41:
// precedence_l ::= precedence_l preced
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(33, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 40:
// precedence_list ::= empty
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(30, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 39:
// precedence_list ::= precedence_l
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(30, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 38:
// non_term_name_list ::= new_non_term_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(21, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 37:
// non_term_name_list ::= non_term_name_list COMMA new_non_term_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(21, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 36:
// term_name_list ::= new_term_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(20, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 35:
// term_name_list ::= term_name_list COMMA new_term_id
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(20, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 34:
// declares_non_term ::= non_term_name_list NT_6 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_6
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(35, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 33:
// NT_6 ::=
{
System.Object RESULT = null;
/* reset the accumulated multipart name */
multipart_name = new string("".ToCharArray());
CUP_parser_result = new Symbol(49, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 32:
// declares_term ::= term_name_list NT_5 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_5
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(34, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 31:
// NT_5 ::=
{
System.Object RESULT = null;
/* reset the accumulated multipart name */
multipart_name = new string("".ToCharArray());
CUP_parser_result = new Symbol(48, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 30:
// symbol ::= non_terminal error NT_4 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_4
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(18, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 29:
// NT_4 ::=
{
System.Object RESULT = null;
/* reset the accumulated multipart name */
multipart_name = new string("".ToCharArray());
CUP_parser_result = new Symbol(47, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 28:
// symbol ::= TERMINAL error NT_3 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_3
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(18, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 27:
// NT_3 ::=
{
System.Object RESULT = null;
/* reset the accumulated multipart name */
multipart_name = new string("".ToCharArray());
CUP_parser_result = new Symbol(46, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 26:
// symbol ::= non_terminal declares_non_term
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(18, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 25:
// symbol ::= non_terminal type_id declares_non_term
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(18, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 24:
// symbol ::= TERMINAL declares_term
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(18, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 23:
// symbol ::= TERMINAL type_id declares_term
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(18, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 2)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 22:
// symbol_list ::= symbol
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(10, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 21:
// symbol_list ::= symbol_list symbol
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(10, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 20:
// scan_code ::= SCAN WITH CODE_STRING opt_semi
{
System.Object RESULT = null;
int user_codeleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left;
int user_coderight = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).right;
System.String user_code = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
if (emit.scan_code != null)
lexer.emit_error("Redundant scan code (skipping)");
else
emit.scan_code = user_code;
CUP_parser_result = new Symbol(17, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 19:
// init_code ::= INIT WITH CODE_STRING opt_semi
{
System.Object RESULT = null;
int user_codeleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left;
int user_coderight = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).right;
System.String user_code = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
if (emit.init_code != null)
lexer.emit_error("Redundant init code (skipping)");
else
emit.init_code = user_code;
CUP_parser_result = new Symbol(16, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 18:
// parser_code_part ::= PARSER CODE CODE_STRING opt_semi
{
System.Object RESULT = null;
int user_codeleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left;
int user_coderight = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).right;
System.String user_code = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
if (emit.parser_code != null)
lexer.emit_error("Redundant parser code (skipping)");
else
emit.parser_code = user_code;
CUP_parser_result = new Symbol(9, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 17:
// action_code_part ::= ACTION CODE CODE_STRING opt_semi
{
System.Object RESULT = null;
int user_codeleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left;
int user_coderight = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).right;
System.String user_code = (string) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
if (emit.action_code != null)
lexer.emit_error("Redundant action code (skipping)");
else
emit.action_code = user_code;
CUP_parser_result = new Symbol(4, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 16:
// code_parts ::= code_parts code_part
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(5, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 15:
// code_parts ::=
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(5, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 14:
// code_part ::= scan_code
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(6, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 13:
// code_part ::= init_code
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(6, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 12:
// code_part ::= parser_code_part
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(6, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 11:
// code_part ::= action_code_part
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(6, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 10:
// import_spec ::= IMPORT import_id NT_2 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_2
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(14, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 9:
// NT_2 ::=
{
System.Object RESULT = null;
/* save this import on the imports list */
emit.import_list.Push(multipart_name);
/* reset the accumulated multipart name */
multipart_name = new string("".ToCharArray());
CUP_parser_result = new Symbol(45, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 8:
// import_list ::= empty
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(3, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 7:
// import_list ::= import_list import_spec
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(3, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 6:
// package_spec ::= empty
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(2, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 5:
// package_spec ::= PACKAGE multipart_id NT_1 SEMI
{
System.Object RESULT = null;
// propagate RESULT from NT_1
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
CUP_parser_result = new Symbol(2, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 3)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 4:
// NT_1 ::=
{
System.Object RESULT = null;
/* save the package name */
emit.namespace_name = multipart_name;
/* reset the accumulated multipart name */
multipart_name = new string("".ToCharArray());
CUP_parser_result = new Symbol(44, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 3:
// spec ::= error symbol_list precedence_list start_spec production_list
{
System.Object RESULT = null;
CUP_parser_result = new Symbol(1, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 4)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 2:
// spec ::= NT_0 package_spec import_list code_parts symbol_list precedence_list start_spec production_list
{
System.Object RESULT = null;
// propagate RESULT from NT_0
if (((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 7)).value_Renamed != null)
RESULT = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 7)).value_Renamed;
CUP_parser_result = new Symbol(1, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 7)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 1:
// NT_0 ::=
{
System.Object RESULT = null;
/* declare "error" as a terminal */
SupportClass.PutElement(symbols, "error", new symbol_part(terminal.error));
/* declare start non terminal */
SupportClass.PutElement(non_terms, "_START", non_terminal.START_nt);
CUP_parser_result = new Symbol(43, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
return CUP_parser_result;
/*. . . . . . . . . . . . . . . . . . . .*/
case 0:
// _START ::= spec EOF
{
System.Object RESULT = null;
int start_valleft = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left;
int start_valright = ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).right;
System.Object start_val = (object) ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).value_Renamed;
RESULT = start_val;
CUP_parser_result = new Symbol(0, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 1)).left, ((Symbol) CUP_parser_stack.Peek(CUP_parser_top - 0)).right, RESULT);
}
/* ACCEPT */
CUP_parser_parser.done_parsing();
return CUP_parser_result;
/* . . . . . .*/
default:
throw new System.Exception("Invalid action number found in internal parse table");
}
}
/// <summary>Constructor.
/// </summary>
/// <param name="base"> the production we are being factored out of.
/// </param>
/// <param name="lhs_sym"> the LHS symbol for this production.
/// </param>
/// <param name="rhs_parts"> array of production parts for the RHS.
/// </param>
/// <param name="rhs_len"> how much of the rhs_parts array is valid.
/// </param>
/// <param name="action_str">the trailing reduce action for this production.
///
/// </param>
public action_production(production base_Renamed, non_terminal lhs_sym, production_part[] rhs_parts, int rhs_len, string action_str) : base(lhs_sym, rhs_parts, rhs_len, action_str)
{
_base_production = base_Renamed;
}
/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/* Constructor w/ no action string and contextual precedence
defined */
public production(non_terminal lhs_sym, production_part[] rhs_parts, int rhs_l, int prec_num, int prec_side)
: this(lhs_sym, rhs_parts, rhs_l, null)
{
InitBlock();
/* set the precedence */
set_precedence_num(prec_num);
set_precedence_side(prec_side);
}
/*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
/// <summary>Constructor with no action string.
/// </summary>
public production(non_terminal lhs_sym, production_part[] rhs_parts, int rhs_l)
: this(lhs_sym, rhs_parts, rhs_l, null)
{
InitBlock();
}
/*-----------------------------------------------------------*/
/*--- Constructor(s) ----------------------------------------*/
/*-----------------------------------------------------------*/
/// <summary>Full constructor. This constructor accepts a LHS non terminal,
/// an array of RHS parts (including terminals, non terminals, and
/// actions), and a string for a final reduce action. It does several
/// manipulations in the process of creating a production object.
/// After some validity checking it translates labels that appear in
/// actions into code for accessing objects on the runtime parse stack.
/// It them merges adjacent actions if they appear and moves any trailing
/// action into the final reduce actions string. Next it removes any
/// embedded actions by factoring them out with new action productions.
/// Finally it assigns a unique index to the production.<p>
/// *
/// Factoring out of actions is accomplished by creating new "hidden"
/// non terminals. For example if the production was originally: <pre>
/// A ::= B {action} C D
/// </pre>
/// then it is factored into two productions:<pre>
/// A ::= B X C D
/// X ::= {action}
/// </pre>
/// (where X is a unique new non terminal). This has the effect of placing
/// all actions at the end where they can be handled as part of a reduce by
/// the parser.
/// </summary>
public production(non_terminal lhs_sym, production_part[] rhs_parts, int rhs_l, string action_str)
{
InitBlock();
int i;
action_part tail_action;
System.String declare_str;
int rightlen = rhs_l;
/* remember the length */
if (rhs_l >= 0)
_rhs_length = rhs_l;
else if (rhs_parts != null)
_rhs_length = rhs_parts.Length;
else
_rhs_length = 0;
/* make sure we have a valid left-hand-side */
if (lhs_sym == null)
throw new internal_error("Attempt to construct a production with a null LHS");
/* I'm not translating labels anymore, I'm adding code to declare
labels as valid variables. This way, the users code string is
untouched
6/96 frankf */
/* check if the last part of the right hand side is an action. If
it is, it won't be on the stack, so we don't want to count it
in the rightlen. Then when we search down the stack for a
Symbol, we don't try to search past action */
if (rhs_l > 0)
{
if (rhs_parts[rhs_l - 1].is_action())
{
rightlen = rhs_l - 1;
}
else
{
rightlen = rhs_l;
}
}
/* get the generated declaration code for the necessary labels. */
declare_str = declare_labels(rhs_parts, rightlen, action_str);
if (action_str == null)
action_str = declare_str;
else
action_str = declare_str + action_str;
/* count use of lhs */
lhs_sym.note_use();
/* create the part for left-hand-side */
_lhs = new symbol_part(lhs_sym);
/* merge adjacent actions (if any) */
_rhs_length = merge_adjacent_actions(rhs_parts, _rhs_length);
/* strip off any trailing action */
tail_action = strip_trailing_action(rhs_parts, _rhs_length);
if (tail_action != null)
_rhs_length--;
/* Why does this run through the right hand side happen
over and over? here a quick combination of two
prior runs plus one I wanted of my own
frankf 6/25/96 */
/* allocate and copy over the right-hand-side */
/* count use of each rhs symbol */
_rhs = new production_part[_rhs_length];
for (i = 0; i < _rhs_length; i++)
{
_rhs[i] = rhs_parts[i];
if (!_rhs[i].is_action())
{
((symbol_part) _rhs[i]).the_symbol().note_use();
if (((symbol_part) _rhs[i]).the_symbol() is terminal)
{
_rhs_prec = ((terminal) ((symbol_part) _rhs[i]).the_symbol()).precedence_num();
_rhs_assoc = ((terminal) ((symbol_part) _rhs[i]).the_symbol()).precedence_side();
}
}
}
/*now action string is really declaration string, so put it in front!
6/14/96 frankf */
if (action_str == null)
action_str = "";
if (tail_action != null && tail_action.code_string() != null)
action_str = action_str + "\t\t" + tail_action.code_string();
/* stash the action */
_action = new action_part(action_str);
/* rewrite production to remove any embedded actions */
remove_embedded_actions();
/* assign an index */
_index = next_index++;
/* put us in the global collection of productions */
SupportClass.PutElement(_all, _index, this);
/* put us in the production list of the lhs non terminal */
lhs_sym.add_production(this);
}