47 typedef struct dt_pcb {  struct
49 	struct dt_pcb *pcb_prev; /* pointer to previous pcb in stack */  argument
50 	FILE *pcb_fileptr;	/* pointer to input file (or NULL) */
51 	char *pcb_filetag;	/* optional file name string (or NULL) */
52 	const char *pcb_string;	/* pointer to input string (or NULL) */
53 	const char *pcb_strptr;	/* pointer to input position */
54 	size_t pcb_strlen;	/* length of pcb_string */
55 	int pcb_sargc;		/* number of script arguments (if any) */
56 	char *const *pcb_sargv;	/* script argument strings (if any) */
57 	ushort_t *pcb_sflagv;	/* script argument flags (DT_IDFLG_* bits) */
58 	dt_scope_t pcb_dstack;	/* declaration processing stack */
59 	dt_node_t *pcb_list;	/* list of allocated parse tree nodes */
60 	dt_node_t *pcb_hold;	/* parse tree nodes on hold until end of defn */
61 	dt_node_t *pcb_root;	/* root of current parse tree */
62 	dt_idstack_t pcb_globals; /* stack of global identifier hash tables */
63 	dt_idhash_t *pcb_locals; /* current hash table of local identifiers */
64 	dt_idhash_t *pcb_idents; /* current hash table of ambiguous idents */
65 	dt_idhash_t *pcb_pragmas; /* current hash table of pending pragmas */
66 	dt_inttab_t *pcb_inttab; /* integer table for constant references */
67 	dt_strtab_t *pcb_strtab; /* string table for string references */
68 	dt_regset_t *pcb_regs;	/* register set for code generation */
69 	dt_irlist_t pcb_ir;	/* list of unrelocated IR instructions */
70 	uint_t pcb_asvidx;	/* assembler vartab index (see dt_as.c) */
94 } dt_pcb_t;  argument