5c8e891995-10-29Fredrik Hübinette (Hubbe) /* * Compilator state push / pop operator construction file * * (Can you tell I like macros?) */ /* * IMEMBER: do not reset this member when popping * ZMEMBER: reset this member to zero when pushing * * defining STRUCT defines the structures * defining DECLARE creates global vars for saving linked list * of these lists... * defining PUSH pushes the selected state(s) on the stack(s) * defining POP pops the selected state(s) from the stack(s) * * define FILE_STATE to select the file state * define PROGRAM_STATE to select the program state */ #ifdef STRUCT #define IMEMBER(X,Y,Z) X Y Z ; #define ZMEMBER(X,Y,Z) X Y Z ; #define SNAME(X,Y) struct X { struct X *previous; #define SEND }; #endif #ifdef DECLARE #define IMEMBER(X,Y,Z) #define ZMEMBER(X,Y,Z) #define SNAME(X,Y) static struct X * Y = 0; #define SEND #endif #ifdef PUSH #define IMEMBER(X,Y,Z) MEMCPY((char *)&(oLd->Y), (char *)&(Y), sizeof(Y)); #define ZMEMBER(X,Y,Z) MEMCPY((char *)&(oLd->Y), (char *)&(Y), sizeof(Y)); \ MEMSET((char *)&(Y), 0, sizeof(Y)); #define SNAME(X,Y) { \ struct X *oLd; \ oLd=ALLOC_STRUCT(X); \ oLd->previous=Y; Y=oLd; #define SEND } #endif #ifdef POP #define IMEMBER(X,Y,Z) MEMCPY((char *)&(Y), (char *)&(oLd->Y), sizeof(Y)); #define ZMEMBER(X,Y,Z) MEMCPY((char *)&(Y), (char *)&(oLd->Y), sizeof(Y)); #define SNAME(X,Y) { \ struct X *oLd; \ oLd=Y; Y=oLd->previous; #define SEND free(oLd); \ } #endif #ifdef FILE_STATE SNAME(file_state,previous_file_state) ZMEMBER(INT32,current_line,) ZMEMBER(INT32,old_line,) ZMEMBER(INT32,nexpands,) ZMEMBER(int,pragma_all_inline,) ZMEMBER(struct inputstate *,istate,) ZMEMBER(struct hash_table *,defines,) ZMEMBER(struct lpc_string *,current_file,) SEND #endif #ifdef PROGRAM_STATE SNAME(program_state,previous_program_state) ZMEMBER(struct program,fake_program,) ZMEMBER(node *,init_node,) ZMEMBER(INT32,last_line,) ZMEMBER(INT32,last_pc,) ZMEMBER(int,num_parse_error,) ZMEMBER(struct locals *,local_variables,) ZMEMBER(dynamic_buffer,inherit_names,) ZMEMBER(dynamic_buffer,areas,[NUM_AREAS]) IMEMBER(int,comp_stackp,) SEND #endif #undef IMEMBER #undef ZMEMBER #undef SNAME #undef SEND