Example #1
0
/*
 *      funcbody starts with the current symbol being either
 *      the first parameter id or the begin for the local
 *      block. If begin is the current symbol then funcbody
 *      assumes that the function has no parameters.
 */
int ParseFunction(SYM *sp)
{
	int poffset, i;
	int oldglobal;
    SYM *sp1, *sp2;
	Statement *stmt;

	if (sp==NULL) {
		fatal("Compiler error: ParseFunction: SYM is NULL\r\n");
	}
	sp->stkname = stkname;
	if (verbose) printf("Parsing function: %s\r\n", sp->name);
		oldglobal = global_flag;
        global_flag = 0;
        poffset = 24;            /* size of return block */
        nparms = 0;
		iflevel = 0;
		// There could be unnamed parameters in a function prototype.
        if(lastst == id || 1) {              /* declare parameters */
                //while(lastst == id) {
                //        names[nparms++] = litlate(lastid);
                //        NextToken();
                //        if( lastst == comma)
                //                NextToken();
                //        else
                //                break;
                //        }
                //needpunc(closepa);
//                dodecl(sc_member);      /* declare parameters */
				sp->parms = (SYM *)NULL;
				ParseParameterDeclarations(1);
                for(i = 0;i < nparms;++i) {
                        if( (sp1 = search(names[i],&lsyms)) == NULL)
                                sp1 = makeint(names[i]);
						//if( sp1->tp->size < 8 )
						//{
						//	sp1->value.i = poffset;// + (8 - sp1->tp->size);
						//	poffset += 8;
						//}
						//else
						//{
						//	sp1->value.i = poffset;
						//	poffset += sp1->tp->size;
						//}
						sp1->value.i = poffset;
						// Check for aggregate types passed as parameters. Structs
						// and unions use the type size. 
					//	if (sp1->tp->type==bt_struct || sp1->tp->type==bt_union) {
    						poffset += round8(sp1->tp->size);
    						if (round8(sp1->tp->size) > 8)
    						   sp->IsLeaf = FALSE;
                    //     }
                    //     else
                    //         poffset += 8;
						//sp1->value.i = poffset;
						//poffset += 8;
                        sp1->storage_class = sc_auto;
						sp1->nextparm = (SYM *)NULL;
						// record parameter list
						if (sp->parms == (SYM *)NULL) {
							sp->parms = sp1;
						}
						else {
							sp1->nextparm = sp->parms;
							sp->parms = sp1;
						}
					}
					// Process extra hidden parameter
					if (sp->tp->btp->type==bt_struct || sp->tp->btp->type==bt_union) {
                         sp1 = makeint(litlate("_pHiddenStructPtr"));
                         sp1->value.i = poffset;
                         poffset += 8;
                         sp1->storage_class = sc_auto;
  	  	 	 	 	 	 sp1->nextparm = (SYM *)NULL;
						// record parameter list
						if (sp->parms == (SYM *)NULL) {
							sp->parms = sp1;
						}
						else {
							sp1->nextparm = sp->parms;
							sp->parms = sp1;
						}
						nparms++;
                    }
                }
		if (lastst == closepa)
			NextToken();
		if (sp->tp->type == bt_pointer) {
			if (lastst==assign) {
				doinit(sp);
			}
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsKernel = isKernel;
			sp->IsInterrupt = isInterrupt;
			sp->IsTask = isTask;
			sp->NumParms = nparms;
			isPascal = FALSE;
			isKernel = FALSE;
			isOscall = FALSE;
			isInterrupt = FALSE;
			isTask = FALSE;
			isNocall = FALSE;
		    ReleaseLocalMemory();        /* release local symbols (parameters)*/
			global_flag = oldglobal;
			return 1;
		}
		if (lastst == semicolon) {	// Function prototype
			sp->IsPrototype = 1;
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsKernel = isKernel;
			sp->IsInterrupt = isInterrupt;
			sp->IsTask = isTask;
			sp->NumParms = nparms;
			isPascal = FALSE;
			isKernel = FALSE;
			isOscall = FALSE;
			isInterrupt = FALSE;
			isTask = FALSE;
			isNocall = FALSE;
		    ReleaseLocalMemory();        /* release local symbols (parameters)*/
			goto j1;
		}
		else if(lastst != begin) {
//			NextToken();
			ParseParameterDeclarations(2);
			// for old-style parameter list
			//needpunc(closepa);
			if (lastst==semicolon) {
				sp->IsPrototype = 1;
				sp->IsNocall = isNocall;
				sp->IsPascal = isPascal;
    			sp->IsKernel = isKernel;
				sp->IsInterrupt = isInterrupt;
    			sp->IsTask = isTask;
				sp->NumParms = nparms;
				isPascal = FALSE;
    			isKernel = FALSE;
				isOscall = FALSE;
				isInterrupt = FALSE;
    			isTask = FALSE;
				isNocall = FALSE;
				ReleaseLocalMemory();        /* release local symbols (parameters)*/
			}
			// Check for end of function parameter list.
			else if (funcdecl==2 && lastst==closepa) {
				;
			}
			else {
				sp->IsNocall = isNocall;
				sp->IsPascal = isPascal;
    			sp->IsKernel = isKernel;
				sp->IsInterrupt = isInterrupt;
    			sp->IsTask = isTask;
				isPascal = FALSE;
    			isKernel = FALSE;
				isOscall = FALSE;
				isInterrupt = FALSE;
    			isTask = FALSE;
				isNocall = FALSE;
				sp->NumParms = nparms;
				stmt = ParseFunctionBody(sp);
				funcbottom(stmt);
			}
		}
//                error(ERR_BLOCK);
        else {
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsKernel = isKernel;
			sp->IsInterrupt = isInterrupt;
			sp->IsTask = isTask;
			isPascal = FALSE;
			isKernel = FALSE;
			isOscall = FALSE;
			isInterrupt = FALSE;
			isTask = FALSE;
			isNocall = FALSE;
			sp->NumParms = nparms;
			stmt = ParseFunctionBody(sp);
			funcbottom(stmt);
        }
j1:
		global_flag = oldglobal;
		return 0;
}
Example #2
0
/*
 *      funcbody starts with the current symbol being either
 *      the first parameter id or the begin for the local
 *      block. If begin is the current symbol then funcbody
 *      assumes that the function has no parameters.
 */
int ParseFunction(SYM *sp)
{
	int i;
    SYM *sp1, *sp2, *pl, *osp;
	Statement *stmt;
	int nump;
	__int16 *ta;
	int nn;
	std::string name;

  dfs.puts("<ParseFunction>\n");
  isFuncBody = true;
	if (sp==NULL) {
		fatal("Compiler error: ParseFunction: SYM is NULL\r\n");
	}
	dfs.printf("***********************************\n");
	dfs.printf("***********************************\n");
	dfs.printf("***********************************\n");
	if (sp->parent)
		dfs.printf("Parent: %s\n", (char *)sp->GetParentPtr()->name->c_str());
	dfs.printf("Parsing function: %s\n", (char *)sp->name->c_str());
	dfs.printf("***********************************\n");
	dfs.printf("***********************************\n");
	dfs.printf("***********************************\n");
	sp->stkname = stkname;
	if (verbose) printf("Parsing function: %s\r\n", (char *)sp->name->c_str());
  nump = nparms;
  iflevel = 0;
		// There could be unnamed parameters in a function prototype.
	dfs.printf("A");
  // declare parameters
  // Building a parameter list here allows both styles of parameter
  // declarations. the original 'C' style is parsed here. Originally the
  // parameter types appeared as list after the parenthesis and before the
  // function body.
	sp->BuildParameterList(&nump);
	dfs.printf("B");
  sp->mangledName = sp->BuildSignature(1);  // build against parameters

	// If the symbol has a parent then it must be a class
	// method. Search the parent table(s) for matching
	// signatures.
	osp = sp;
	name = *sp->name;
	if (sp->parent) {
	  SYM *sp2;
	  dfs.printf("PArent Class:%s|",(char *)sp->GetParentPtr()->name->c_str());
		sp2 = sp->GetParentPtr()->Find(name);
		if (sp2) {
		  dfs.printf("Found at least inexact match");
      sp2 = sp->FindExactMatch(TABLE::matchno);
    }
		if (sp2 == nullptr)
      error(ERR_METHOD_NOTFOUND);
    else
      sp = sp2;
		sp->PrintParameterTypes();
	}
	else {
		if (gsyms[0].Find(name)) {
			sp = TABLE::match[TABLE::matchno-1];
		}
	}
	dfs.printf("C");

  if (sp != osp) {
    dfs.printf("ParseFunction: sp changed\n");
    osp->params.CopyTo(&sp->params);
    osp->proto.CopyTo(&sp->proto);
    sp->derivitives = osp->derivitives;
    sp->mangledName = osp->mangledName;
    // Should free osp here. It's not needed anymore
  }
	if (lastst == closepa) {
		NextToken();
	}
	dfs.printf("D");
	if (sp->tp->type == bt_pointer) {
		if (lastst==assign) {
			doinit(sp);
		}
		sp->IsNocall = isNocall;
		sp->IsPascal = isPascal;
		sp->IsKernel = isKernel;
		sp->IsInterrupt = isInterrupt;
		sp->IsTask = isTask;
		sp->NumParms = nump;
		sp->IsVirtual = isVirtual;
		isPascal = FALSE;
		isKernel = FALSE;
		isOscall = FALSE;
		isInterrupt = FALSE;
		isTask = FALSE;
		isNocall = FALSE;
//	    ReleaseLocalMemory();        /* release local symbols (parameters)*/
		return 1;
	}
	dfs.printf("E");
	if (lastst == semicolon) {	// Function prototype
		dfs.printf("e");
		sp->IsPrototype = 1;
		sp->IsNocall = isNocall;
		sp->IsPascal = isPascal;
		sp->IsKernel = isKernel;
		sp->IsInterrupt = isInterrupt;
		sp->IsTask = isTask;
		sp->IsVirtual = isVirtual;
		sp->NumParms = nump;
		sp->params.MoveTo(&sp->proto);
		isPascal = FALSE;
		isKernel = FALSE;
		isOscall = FALSE;
		isInterrupt = FALSE;
		isTask = FALSE;
		isNocall = FALSE;
//	    ReleaseLocalMemory();        /* release local symbols (parameters)*/
		goto j1;
	}
		else if(lastst != begin) {
			dfs.printf("F");
//			NextToken();
			ParameterDeclaration::Parse(2);
			// for old-style parameter list
			//needpunc(closepa);
			if (lastst==semicolon) {
				sp->IsPrototype = 1;
				sp->IsNocall = isNocall;
				sp->IsPascal = isPascal;
    			sp->IsKernel = isKernel;
				sp->IsInterrupt = isInterrupt;
    			sp->IsTask = isTask;
			sp->IsVirtual = isVirtual;
				sp->NumParms = nump;
				isPascal = FALSE;
    			isKernel = FALSE;
				isOscall = FALSE;
				isInterrupt = FALSE;
    			isTask = FALSE;
				isNocall = FALSE;
//				ReleaseLocalMemory();        /* release local symbols (parameters)*/
			}
			// Check for end of function parameter list.
			else if (funcdecl==2 && lastst==closepa) {
			  ;
			}
			else {
				sp->IsNocall = isNocall;
				sp->IsPascal = isPascal;
    		sp->IsKernel = isKernel;
				sp->IsInterrupt = isInterrupt;
    		sp->IsTask = isTask;
			  sp->IsVirtual = isVirtual;
				isPascal = FALSE;
    		isKernel = FALSE;
				isOscall = FALSE;
				isInterrupt = FALSE;
    		isTask = FALSE;
				isNocall = FALSE;
				sp->NumParms = nump;
				stmt = ParseFunctionBody(sp);
				funcbottom(stmt);
			}
		}
//                error(ERR_BLOCK);
    else {
dfs.printf("G");
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsKernel = isKernel;
			sp->IsInterrupt = isInterrupt;
			sp->IsTask = isTask;
			sp->IsVirtual = isVirtual;
			isPascal = FALSE;
			isKernel = FALSE;
			isOscall = FALSE;
			isInterrupt = FALSE;
			isTask = FALSE;
			isNocall = FALSE;
			sp->NumParms = nump;
			stmt = ParseFunctionBody(sp);
			funcbottom(stmt);
    }
j1:
dfs.printf("F");
  dfs.puts("</ParseFunction>\n");
  return 0;
}
Example #3
0
/*
 *      funcbody starts with the current symbol being either
 *      the first parameter id or the begin for the local
 *      block. If begin is the current symbol then funcbody
 *      assumes that the function has no parameters.
 */
void ParseFunction(SYM *sp)
{
	int poffset, i;
	int oldglobal;
    SYM *sp1, *sp2, *makeint();

		oldglobal = global_flag;
        global_flag = 0;
        poffset = 24;            /* size of return block */
        nparms = 0;
        if(lastst == id || 1) {              /* declare parameters */
                //while(lastst == id) {
                //        names[nparms++] = litlate(lastid);
                //        NextToken();
                //        if( lastst == comma)
                //                NextToken();
                //        else
                //                break;
                //        }
                //needpunc(closepa);
//                dodecl(sc_member);      /* declare parameters */
				sp->parms = NULL;
				ParseParameterDeclarations(1);
                for(i = 0;i < nparms;++i) {
                        if( (sp1 = search(names[i],&lsyms)) == NULL)
                                sp1 = makeint(names[i]);
						//if( sp1->tp->size < 8 )
						//{
						//	sp1->value.i = poffset;// + (8 - sp1->tp->size);
						//	poffset += 8;
						//}
						//else
						//{
						//	sp1->value.i = poffset;
						//	poffset += sp1->tp->size;
						//}
						sp1->value.i = poffset;
						poffset += 8;
                        sp1->storage_class = sc_auto;
						sp1->nextparm = NULL;
						// record parameter list
						if (sp->parms == NULL) {
							sp->parms = sp1;
						}
						else {
							sp1->nextparm = sp->parms;
							sp->parms = sp1;
						}
					}
                }
		if (lastst == closepa)
			NextToken();
		if (lastst == semicolon) {	// Function prototype
			sp->IsPrototype = 1;
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsInterrupt = isInterrupt;
			sp->NumParms = nparms;
			isPascal = FALSE;
			isOscall = FALSE;
			isInterrupt = FALSE;
			isNocall = FALSE;
		    ReleaseLocalMemory();        /* release local symbols (parameters)*/
		}
		else if(lastst != begin) {
			NextToken();
			ParseParameterDeclarations(2);
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsInterrupt = isInterrupt;
			sp->NumParms = nparms;
			ParseFunctionBody(sp);
			funcbottom();
		}
//                error(ERR_BLOCK);
        else {
			sp->IsNocall = isNocall;
			sp->IsPascal = isPascal;
			sp->IsInterrupt = isInterrupt;
			sp->NumParms = nparms;
			ParseFunctionBody(sp);
			funcbottom();
        }
		global_flag = oldglobal;
}