/* seman.h
 * included in seman.c to manipulate the symbol table and conduct static
 * semantic checking.  Mainly from the provided module proj3.c.
 * also included in traverse.c and tree.c
 */

#define false   0
#define true    1
#define FALSE   0
#define TRUE    1
#define bool    char

#define STACK_SIZE 	100
#define ST_SIZE    	500
#define ATTR_SIZE 	2000
#define STRING_SIZE 	256

/*******************************************************
 * error type for error reporting routine              *
 *******************************************************/

#define STACK_OVERFLOW 		100
#define REDECLARATION  		101
#define ST_OVERFLOW    		102
#define UNDECLARATION  		103
#define ATTR_OVERFLOW  		104
#define NOT_USED       		105
#define NOT_INT_CONSTANT	106
#define NOT_TYPE       		107
#define DIM_MISMATCH   		108
#define ASSIGN_ERR   		109
#define PARA_MISMATCH  		110
#define REF_ARG_MISMATCH	111
#define PROC_AS_VAR		112
#define TYPE_AS_VAR  		113
#define NOT_ARRAY  		114
#define NOT_RECORD  		115
#define ROUTINE_CALL_ERR 	116
#define NOT_FIELD  		117
#define FORWD_MISMATCH 		118
#define LOOP_VAR 		119

/*******************************************************
 * processing instruction for error reporting routine  *
 *******************************************************/
#define CONTINUE 0      /* print error and return to the caller */
#define ABORT    1      /* print the fatal error and abort execution */

/*****************************************************************
 * these definitions correspond to the fields of a stack element *
 *****************************************************************/
#define MARKER 1
#define NAME   2
#define ST_PTR 3
#define DUMMY  4
#define USED   5

/****************************************************************************
 * the possible attributes for symbol table.  the comment to the right      *
 * describe the attribute's value.  Notice the small constants are given to *
 * the attributes which are common to all the ids, so that we can do some   *
 * sorting in the link list                                                 *
 ****************************************************************************/

#define NAME_ATTR   1      /* value: id lexeme pointer, set by InsertEntry */
#define NEST_ATTR   2      /* value: nesting level, set by InsertEntry     */
#define TREE_ATTR   3      /* value: point back to the subtree             */
#define PREDE_ATTR  4      /* value: is this id predefined?                */
#define TYPE_ATTR   6      /* value: pointer to the type tree for a
                              variable, constant id or function    */
#define VALUE_ATTR  7      /* value: the value of a constant id (integer,
                              character or string pointer)          */
/* added */
#define DIM_ATTR    8	   /* # of dimensions wherever appropriate */
#define FORWD_ATTR  9	   /* true if a routine declaration is a forward one */

/* not used in project 3 */
#define OFFSET_ATTR 10
#define SIZE_ATTR   12

#define KIND_ATTR   5      /* value: see below                            */
/*************************************************
 * the possible values of attribute kind_attr    *
 *************************************************/
#define CONSTANT  1
#define VARIABLE  2
#define PROCE     3
#define FUNC      4
#define REF_ARG   5
#define VALUE_ARG 6
#define FIELD     7
#define TYPE      8