/*
* Commit the just defined function for use.
* This replaces any existing definition for the function.
* This should only be called for normal user-defined functions.
*/
void
endfunc(void)
{
register FUNC *fp; /* function just finished */
unsigned long size; /* size of just created function */
unsigned long index;
if (oldop != OP_RETURN) {
addop(OP_UNDEF);
addop(OP_RETURN);
}
checklabels();
if (errorcount) {
printf("\"%s\": %ld error%s\n", newname, errorcount,
((errorcount == 1) ? "" : "s"));
return;
}
size = funcsize(curfunc->f_opcodecount);
fp = (FUNC *) malloc(size);
if (fp == NULL) {
math_error("Cannot commit function");
/*NOTREACHED*/
}
memcpy((char *) fp, (char *) curfunc, size);
if (curfunc != functemplate)
free(curfunc);
if (newname[0] != '*' && (conf->traceflags & TRACE_FNCODES)) {
dumpnames = TRUE;
for (size = 0; size < fp->f_opcodecount; ) {
printf("%ld: ", (long)size);
size += dumpop(&fp->f_opcodes[size]);
}
}
if ((inputisterminal() && conf->resource_debug & RSCDBG_STDIN_FUNC) ||
(!inputisterminal() && conf->resource_debug & RSCDBG_FILE_FUNC)) {
printf("%s(", newname);
for (index = 0; index < fp->f_paramcount; index++) {
if (index)
putchar(',');
printf("%s", paramname(index));
}
printf(") ");
if (functions[newindex])
printf("re");
printf("defined\n");
}
if (functions[newindex]) {
freenumbers(functions[newindex]);
free(functions[newindex]);
}
functions[newindex] = fp;
}
/*
* Add an opcode and and two integer arguments to the current function
* being compiled.
*/
void
addoptwo(long op, long arg1, long arg2)
{
addop(op);
curfunc->f_opcodes[curfunc->f_opcodecount++] = arg1;
curfunc->f_opcodes[curfunc->f_opcodecount++] = arg2;
}
/**
* 添加函数
* 主要添加三条指令，一条将该字节码从表中导入运行栈中，第二条提示栈顶是一个
* 字节码对象，第三条指令根据函数名存入该字节码对象
*/
int32_t CodeBuilder::make_function( std::string fun_name,CodeObject* opcode )
{
StrTable::iterator iter = names.find(fun_name);
int32_t arg = names.size();
if (iter == names.end())
{
names.insert(std::make_pair(fun_name,arg));
}
else
{
arg = iter->second;
}
//上面得到了name的ID，现在插入函数的字节码
CodeObjectEntry::iterator iter_object = codes.find(arg);
if (iter_object != codes.end())
{
//预留，这里已经出错了，函数重定义
assert(0); //到这里弹出
return 0;
}
codes.insert(std::make_pair(arg,opcode));
addop_i(LOAD_OBJECT,arg);
addop(MAKE_FUNCTION);
addop_name(STORE_NAME,fun_name);
return 1;
}
int
main (int argc, char **argv)
{
int index;
mu_url_t url;
MU_APP_INIT_NLS ();
mh_argp_init (program_version);
mh_argp_parse (&argc, &argv, 0, options, mh_option,
args_doc, doc, opt_handler, NULL, &index);
if (!oplist)
addop ("date", comp_date);
if (action == ACTION_LIST && mh_format_parse (format_str, &format))
{
mu_error (_("Bad format string"));
exit (1);
}
mbox = mh_open_folder (mh_current_folder (), 0);
mu_mailbox_get_url (mbox, &url);
mbox_path = mu_url_to_string (url);
if (memcmp (mbox_path, "mh:", 3) == 0)
mbox_path += 3;
argc -= index;
argv += index;
mh_msgset_parse (mbox, &msgset, argc, argv, "all");
sort (mbox, msgset);
return 0;
}
/*
* Add an opcode and a character pointer to the function being compiled.
*/
void
addopptr(long op, char *ptr)
{
char **ptraddr;
addop(op);
ptraddr = (char **) &curfunc->f_opcodes[curfunc->f_opcodecount];
*ptraddr = ptr;
curfunc->f_opcodecount += PTR_SIZE;
}
/*
* Add an opcode and an index and an argument count for a function call.
*/
void
addopfunction(long op, long index, int count)
{
long newop;
if ((op == OP_CALL) && ((newop = builtinopcode(index)) != OP_NOP)) {
if ((newop == OP_SETCONFIG) && (count == 1))
newop = OP_GETCONFIG;
if ((newop == OP_SETEPSILON) && (count == 0))
newop = OP_GETEPSILON;
if ((newop == OP_ABS) && (count == 1))
addop(OP_GETEPSILON);
addop(newop);
return;
}
addop(op);
curfunc->f_opcodes[curfunc->f_opcodecount++] = index;
curfunc->f_opcodes[curfunc->f_opcodecount++] = count;
}
void seprime()
{
int incoming = addop();
if(incoming == 1)
{
term();
seprime();
}
else
return;
}
/*
* Add an opcode and and one integer argument to the current function
* being compiled.
*/
void
addopone(long op, long arg)
{
if (op == OP_DEBUG) {
if ((conf->traceflags & TRACE_NODEBUG) || (arg == debugline))
return;
debugline = arg;
if (oldop == OP_DEBUG) {
curfunc->f_opcodes[curfunc->f_opcodecount - 1] = arg;
return;
}
}
addop(op);
curfunc->f_opcodes[curfunc->f_opcodecount] = arg;
curfunc->f_opcodecount++;
}
void postfix(char *input){
int i,valid=TRUE;
for(i=0;input[i]!='\0'&&valid;i++){
//printf("%c\n",input[i]);
//if(input[i]=='0'||input[i]=='1'||input[i]=='2'||input[i]=='3'||input[i]=='4'||input[i]=='5'||input[i]=='6'||input[i]=='7'||input[i]=='8'||input[i]=='9'){
////push(start,(int)input[i]);
//printf("%d",input[i]); //debug
//}
//else if(input[i]=='+'||input[i]=='-'||input[i]=='*'||input[i]=='/'||input[i]=='$'){
//printf("%c",input[i]); //debug
//}
//else{
//printf("\nInvalid String !\n");
//}
switch(input[i]){
case '0': push(&(start->top),0); break;
case '1': push(&(start->top),1); break;
case '2': push(&(start->top),2); break;
case '3': push(&(start->top),3); break;
case '4': push(&(start->top),4); break;
case '5': push(&(start->top),5); break;
case '6': push(&(start->top),6); break;
case '7': push(&(start->top),7); break;
case '8': push(&(start->top),8); break;
case '9': push(&(start->top),9); break;
/*
case '0': push(start,0); break;
case '1': push(start,1); break;
case '2': push(start,2); break;
case '3': push(start,3); break;
case '4': push(start,4); break;
case '5': push(start,5); break;
case '6': push(start,6); break;
case '7': push(start,7); break;
case '8': push(start,8); break;
case '9': push(start,9); break;
*/
case '+': addop(); break;
case '-': subop(); break;
case '*': mulop(); break;
case '/': divop(); break;
case '$': expop(); break;
default: printf("\nInvalid String !\n"); valid=FALSE; break;
}//end switch
}//end for
}
int seprime()
{
if(addop())
{
if(term())
{
if(seprime())
return 1;
else
return 0;
}
else
return 0;
}
else
return 1;
}
//*********Main Function**************
int main(){
int i,valid=TRUE;
start=getNode();
start->info=0;
start->next=NULL;
printf("\nEnter Postfix String: ");
gets(input);
for(i=0;input[i]!='\0'&&valid;i++){
//printf("%c\n",input[i]);
//if(input[i]=='0'||input[i]=='1'||input[i]=='2'||input[i]=='3'||input[i]=='4'||input[i]=='5'||input[i]=='6'||input[i]=='7'||input[i]=='8'||input[i]=='9'){
////push(start,(int)input[i]);
//printf("%d",input[i]); //debug
//}
//else if(input[i]=='+'||input[i]=='-'||input[i]=='*'||input[i]=='/'||input[i]=='$'){
//printf("%c",input[i]); //debug
//}
//else{
//printf("\nInvalid String !\n");
//}
switch(input[i]){
case '0': push(start,0); break;
case '1': push(start,1); break;
case '2': push(start,2); break;
case '3': push(start,3); break;
case '4': push(start,4); break;
case '5': push(start,5); break;
case '6': push(start,6); break;
case '7': push(start,7); break;
case '8': push(start,8); break;
case '9': push(start,9); break;
case '+': addop(); break;
case '-': subop(); break;
case '*': mulop(); break;
case '/': divop(); break;
case '$': expop(); break;
default: printf("\nInvalid String !\n"); valid=FALSE; break;
}//end switch
}//end for
printf("\nValue of expression %s\t=",input);
display(start->next);
printf("\n");
}//end main
int expression() {
int sentinel = 0; // fail by default
if (primary()) {
sentinel = 1;
while (addop()) {
if (primary()) {
sentinel = 1;
}
else {
printf("Expected Primary\n");
sentinel = 0;
}
}
}
else
{
printf("Expecting primary\n");
}
return sentinel;
}
/**
* 回填CFG
*/
void CodeBuilder::back_pach()
{
if (curblock->b_return)
{
next_block();
//python在结束的时候添加了NONE，这里没有
addop(RETURN_VALUE);
}
int32_t nblocks = 0;
Basicblock *b, *entryblock;
entryblock = NULL;
//遍历所有的block，并计数，最终entry是第一个被分配的块地址
//block现在是最末尾的块，所以向上遍历是对的
for (b = block; b != NULL; b = b->b_list)
{
nblocks++;
entryblock = b;
}
Assembler a(nblocks);
//从entryblock中进入完成向反序表中添加
a.dfs(entryblock);
/* Can't modify the bytecode after computing jump offsets. */
//从最末尾开始
a.jump_offsets(block);
//到这里将所有的跳转地址都填好了,现在生成指令
code_object = a.makecode();
//将剩余的全局信息全部拷贝过去
code_object->set_consts(consts);
code_object->set_names(names);
code_object->set_varname(varnames);
code_object->set_interger(intergers);
code_object->set_floats(floats);
code_object->set_codes(codes);
code_object->set_var(vars);
return;
}
static error_t
opt_handler (int key, char *arg, struct argp_state *state)
{
switch (key)
{
case ARG_FOLDER:
mh_set_current_folder (arg);
break;
case ARG_DATEFIELD:
addop (arg, comp_date);
break;
case ARG_NUMFIELD:
addop (arg, comp_number);
break;
case ARG_NODATEFIELD:
remop (comp_date);
break;
case ARG_TEXTFIELD:
addop (arg, comp_text);
break;
case ARG_NOTEXTFIELD:
remop (comp_text);
break;
case ARG_LIMIT:
limit = strtoul (arg, NULL, 0);
break;
case ARG_NOLIMIT:
limit = -1;
break;
case ARG_VERBOSE:
if (!arg || mu_isalpha (arg[0]))
verbose = is_true (arg);
else
verbose = arg[0] - '0';
break;
case ARG_NOVERBOSE:
verbose = 0;
break;
case ARG_FORM:
mh_read_formfile (arg, &format_str);
break;
case ARG_FORMAT:
format_str = arg;
break;
case ARG_REORDER:
action = ACTION_REORDER;
break;
case ARG_LIST:
action = ACTION_LIST;
break;
case ARG_DRY_RUN:
action = ACTION_DRY_RUN;
if (!verbose)
verbose = 1;
break;
case ARG_SHELL:
case ARG_QUICKSORT:
algorithm = key;
break;
case ARG_LICENSE:
mh_license (argp_program_version);
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
void opTick()
{
repair(10);
addop(L_SHIELDS, 10);
}
/*
* Add a jump-type opcode and a label to the function being compiled.
*
* given:
* label label to be added
*/
void
addoplabel(long op, LABEL *label)
{
addop(op);
uselabel(label);
}
int main(int argc, char **argv)
{
int curarg;
osfildef *fpin;
osfildef *fpout;
char tmpfile[OSFNMAX + 1];
char inbuf[OSFNMAX + 1];
char *p;
char *infile;
char buf[128];
opdef *oplist = (opdef *)0;
opctxdef opctx;
int do_create = FALSE;
/* print main banner */
rscptf("TADS Resource Manager version 2.2.4\n");
rscptf("Copyright (c) 1992, 1999 by Michael J. Roberts. ");
rscptf("All Rights Reserved.\n");
if (argc < 2) usage();
/* set default parsing options */
opctx.restype = RESTYPE_DFLT;
opctx.flag = OPFADD | OPFDEL;
opctx.doing_type = FALSE;
/* scan file options (these come before the filename) */
for (curarg = 1 ; curarg < argc ; ++curarg)
{
/* check if it's an option - if not, stop looking */
if (argv[curarg][0] != '-')
break;
/* check the option */
if (!stricmp(argv[curarg], "-create"))
{
/* note that we want to create the file */
do_create = TRUE;
}
else
{
rscptf("unrecognized file option \"%s\"", argv[curarg]);
errexit("", 1);
}
}
/* get the file name */
infile = argv[curarg++];
strcpy(inbuf, infile);
os_defext(inbuf, "gam");
/* open the file for reading, unless we're creating a new file */
if (do_create)
{
/* creating - we have no input file */
fpin = 0;
}
else if ((fpin = osfoprb(inbuf, OSFTGAME)) == 0)
{
/*
* not creating, so the file must already exist - it doesn't, so
* issue an error and quit
*/
errexit("unable to open resource file", 1);
}
/*
* if no operations are desired, and we're not creating a new file,
* just list the existing file's contents and quit
*/
if (curarg == argc && fpin != 0)
{
rscproc(fpin, (osfildef *)0, 0);
osfcls(fpin);
os_term(OSEXSUCC);
}
/*
* Create an output file. If we're creating a new file, create the
* file named on the command line; otherwise, create a temporary
* file that we'll write to while working and then rename to the
* original input filename after we've finished with the original
* input file.
*/
if (do_create)
{
/* create the new file */
if ((fpout = osfopwb(inbuf, OSFTGAME)) == 0)
errexit("unable to create file", 1);
/* report the creation */
rscptf("\nFile created.\n");
}
else
{
/* generate a temporary filename */
strcpy(tmpfile, inbuf);
for (p = tmpfile + strlen(tmpfile) ; p > tmpfile &&
*(p-1) != ':' && *(p-1) != '\\' && *(p-1) != '/' ; --p);
strcpy(p, "$TADSRSC.TMP");
/* open the temporary file */
if ((fpout = osfopwb(tmpfile, OSFTGAME)) == 0)
errexit("unable to create temporary file", 1);
}
/* see if we need to read a response file */
if (curarg < argc && argv[curarg][0] == '@')
{
osfildef *argfp;
int l;
char *p;
if (!(argfp = osfoprt(argv[curarg]+1, OSFTTEXT)))
errexit("unable to open response file", 1);
for (;;)
{
if (!osfgets(buf, sizeof(buf), argfp)) break;
l = strlen(buf);
if (l && buf[l-1] == '\n') buf[--l] = '\0';
for (p = buf ; t_isspace(*p) ; ++p);
if (!*p) continue;
oplist = addop(oplist, p, &opctx);
}
osfcls(argfp);
}
else
{
for ( ; curarg < argc ; ++curarg)
oplist = addop(oplist, argv[curarg], &opctx);
}
/* process the resources */
oplist = rscproc(fpin, fpout, oplist);
/* make sure they all got processed */
for ( ; oplist != 0 ; oplist = oplist->opnxt)
{
if (!(oplist->opflag & OPFDONE))
rscptf("warning: resource \"%s\" not found\n", oplist->opres);
}
/* close files */
if (fpin != 0)
osfcls(fpin);
if (fpout != 0)
osfcls(fpout);
/*
* if we didn't create a new file, remove the original input file
* and rename the temp file to the original file name
*/
if (!do_create)
{
/* remove the original input file */
if (remove(inbuf))
errexit("error deleting input file", 1);
/* rename the temp file to the output file */
if (rename(tmpfile, inbuf))
errexit("error renaming temporary file", 1);
}
/* success */
os_term(OSEXSUCC);
return OSEXSUCC;
}