void CpRead( void ) { //================ // Compile READ statement. itnode *cit; Remember.read = true; InitIO(); cit = CITNode; AdvanceITPtr(); if( RecOpenParen() && ReadKWList() ) { KeywordList(); ReqCloseParen(); } else { CITNode = cit; Form(); if( !RecEOS() ) { ReqComma(); } } if( !Remember.end_equals ) { GNullEofStmt(); } IOList(); ReqEOS(); FiniIO(); }
void Function( TYPE typ, uint size, bool len_spec ) { // Compile [type] [*len] FUNCTION NAME[*len] ([d,d,...]) // \ / // Already scanned // unsigned_16 flags; entry_pt *entry; flags = SY_USAGE | SY_SUBPROGRAM | SY_PENTRY | SY_FUNCTION; if( typ == FT_NO_TYPE ) { typ = ImplType( *(CITNode->opnd) ); } else { flags |= SY_TYPE; } CkSubEnd(); ProgSw |= PS_IN_SUBPROGRAM; if( ReqName( NAME_FUNCTION ) ) { entry = SubProgName( typ, flags, size, len_spec ); STFnShadow( SubProgId ); if( ReqOpenParen() ) { ParmList( false, entry ); } ReqCloseParen(); ReqNOpn(); AdvanceITPtr(); ReqEOS(); } else { // We still want to start a subprogram even though there is no name. SubProgId = LkProgram(); // use default name GSegLabel(); } BIStartSubroutine(); }
void InitImpDo( itnode *lastcomma ) { //====================================== // Initialize the implied DO-loop. int level; itnode *imp_do_list; CITNode = lastcomma; CITNode->opr = OPR_TRM; // marks the end of the i/o list ImpDo(); if( !ReqCloseParen() ) { level = 0; for(;;) { if( RecOpenParen() ) { level++; } else if( RecCloseParen() ) { level--; } if( level < 0 ) break; if( CITNode->link == NULL ) { DelCSNode(); CITNode->opr = OPR_TRM; CITNode->oprpos = 9999; break; } AdvanceITPtr(); } } ReqNOpn(); imp_do_list = lastcomma->link; lastcomma->link = CITNode->link; CITNode->link = NULL; FreeITNodes( imp_do_list ); }
static void DoKWList( void ) { //========================== // Call KeywordList() and check for closing parenthesis. KeywordList(); if( ReqCloseParen() ) { if( !RecNOpn() ) { Error( SX_EOS_EXPECTED ); } AdvanceITPtr(); } }
void CpWrite( void ) { //================= // Compile WRITE statement. InitIO(); if( RecTrmOpr() && RecNOpn() ) { AdvanceITPtr(); } if( ReqOpenParen() ) { KeywordList(); ReqCloseParen(); IOList(); } ReqEOS(); FiniIO(); }
void CpEntry( void ) { entry_pt *entry; bool in_subr; sym_id sym; if( ( ProgSw & PS_IN_SUBPROGRAM ) == 0 ) { StmtErr( SR_ILL_IN_PROG ); } if( !EmptyCSList() ) { Error( EY_NOT_IN_CS ); } if( ReqName( NAME_FUNCTION ) ) { in_subr = (SubProgId->u.ns.flags & SY_SUBPROG_TYPE) == SY_SUBROUTINE; sym = LkSym(); if( ( sym->u.ns.flags & (SY_USAGE|SY_SUB_PARM|SY_IN_EC|SY_SAVED) ) || ( in_subr && (sym->u.ns.flags & SY_TYPE) ) ) { IllName( sym ); } else { sym->u.ns.u1.s.typ = CITNode->typ; sym->u.ns.flags &= SY_TYPE; if( in_subr ) { sym->u.ns.flags |= SY_USAGE | SY_SUBPROGRAM | SY_SENTRY | SY_SUBROUTINE | SY_REFERENCED; } else { sym->u.ns.flags |= SY_USAGE | SY_SUBPROGRAM | SY_SENTRY | SY_FUNCTION; } STFnShadow( sym ); entry = AddEntryPt( sym ); AdvanceITPtr(); if( Options & OPT_TRACE ) { GSetSrcLine(); } if( RecOpenParen() ) { ParmList( in_subr, entry ); ReqCloseParen(); ReqNOpn(); AdvanceITPtr(); } BIStartRBorEP( sym ); ReqEOS(); } } SgmtSw &= ~SG_PROLOG_DONE; // indicate we need prologue }
void CpSubroutine( void ) { entry_pt *entry; CkSubEnd(); ProgSw |= PS_IN_SUBPROGRAM; if( ReqName( NAME_SUBROUTINE ) ) { entry = SubProgName( FT_NO_TYPE, SY_USAGE | SY_SUBPROGRAM | SY_PENTRY | SY_SUBROUTINE | SY_REFERENCED, 0, true ); if( RecOpenParen() ) { ParmList( true, entry ); ReqCloseParen(); ReqNOpn(); AdvanceITPtr(); } ReqEOS(); } else { // We still want to start a subprogram even though there is no name. SubProgId = LkProgram(); // use default name GSegLabel(); } BIStartSubroutine(); }
static bool SubStr2( intstar4 *subscripts ) { //=============================================== // Get the second component of a substring expression. bool got_colon; bool hi; subscripts++; got_colon = RecColon(); hi = FALSE; if( !RecNOpn() ) { CIntExpr(); *subscripts = ITIntValue( CITNode ); hi = TRUE; } if( got_colon ) { AdvanceITPtr(); } ReqCloseParen(); ReqNOpn(); AdvanceITPtr(); return( hi ); }
void SFPrologue( void ) { //==================== // Generate code for statement function prologue. sym_id sym; itnode *func_node; itnode *arg_list; sf_parm **parm; StmtSw |= SS_SF_REFERENCED; CkTypeDeclared(); SFSymId = CITNode->sym_ptr; if( ( SFSymId->ns.typ == FT_CHAR ) && ( SFSymId->ns.xt.size == 0 ) ) { Error( SF_ILL_CHAR_LEN ); } else if( SFSymId->ns.typ == FT_STRUCTURE ) { Error( SF_ILL_TYPE ); } GStartSF(); SFSymId->ns.flags = SY_USAGE | SY_TYPE | SY_SUBPROGRAM | SY_STMT_FUNC; CITNode->flags = SFSymId->ns.flags; func_node = CITNode; AdvanceITPtr(); ReqOpenParen(); SFSymId->ns.si.sf.header = FMemAlloc( sizeof( sf_header ) ); SFSymId->ns.si.sf.header->ref_count = 1; parm = &SFSymId->ns.si.sf.header->parm_list; *parm = NULL; if( RecNOpn() ) { AdvanceITPtr(); } else { for(;;) { if( ReqName( NAME_SF_DUMMY ) ) { sym = LkSym(); sym->ns.xflags |= SY_DEFINED; CkTypeDeclared(); if( ( ( sym->ns.flags & SY_CLASS ) == SY_VARIABLE ) && ( ( sym->ns.flags & SY_SUBSCRIPTED ) == 0 ) && ( ( sym->ns.typ != FT_CHAR ) || ( sym->ns.xt.size != 0 ) ) && ( sym->ns.typ != FT_STRUCTURE ) ) { if( sym->ns.flags & SY_SPECIAL_PARM ) { Error( SF_DUPLICATE_DUMMY_PARM ); } else { *parm = FMemAlloc( sizeof( sf_parm ) ); (*parm)->link = NULL; (*parm)->actual = sym; (*parm)->shadow = STShadow( sym ); parm = &((*parm)->link); } } else { Error( SF_ILL_DUMMY_PARM ); } } AdvanceITPtr(); if( !RecComma() ) break; } } ReqCloseParen(); ReqNOpn(); arg_list = func_node->link; func_node->link = CITNode->link; CITNode->link = NULL; CITNode = func_node; FreeITNodes( arg_list ); }
void CpParameter( void ) { //===================== // Compile PARAMETER statement. // // PARAMETER (P1=E1,...,Pn=En), n > 0 uint parm_size; byte *lit; byte *string; int lit_len; sym_id sym; sym_id value_id; TYPE typ; byte assign_val; ReqNOpn(); AdvanceITPtr(); ReqOpenParen(); for(;;) { if( ReqName( NAME_VARIABLE ) ) { sym = LkSym(); typ = sym->u.ns.u1.s.typ; assign_val = TRUE; if( sym->u.ns.flags & (SY_USAGE | SY_SUB_PARM | SY_IN_EC) ) { IllName( sym ); assign_val = FALSE; } else if( typ == FT_STRUCTURE ) { IllType( sym ); assign_val = FALSE; } else { CkSymDeclared( sym ); } AdvanceITPtr(); ReqEquSign(); parm_size = sym->u.ns.xt.size; if( typ == FT_STRUCTURE ) { ConstExpr( FT_NO_TYPE ); } else if( _IsTypeLogical( typ ) ) { CLogicExpr(); } else if( typ == FT_CHAR ) { CCharExpr(); } else { CArithExpr(); } if( !AError && assign_val ) { if( typ == FT_CHAR ) { string = (byte *)CITNode->value.cstring.strptr; if( CITNode->size < parm_size ) { lit = FMemAlloc( parm_size ); lit_len = CITNode->size; memcpy( lit, string, lit_len ); memset( lit + lit_len, ' ', parm_size - lit_len ); value_id = STLit( lit, parm_size ); FMemFree( lit ); } else { if( parm_size == 0 ) { // *(*) parm_size = CITNode->size; } value_id = STLit( string, parm_size ); } } else { if( !_IsTypeLogical( typ ) ) { CnvTo( CITNode, typ, parm_size ); } value_id = STConst( &CITNode->value, typ, parm_size ); } sym->u.ns.flags |= SY_USAGE | SY_PARAMETER | SY_TYPE; sym->u.ns.xt.size = parm_size; sym->u.ns.si.pc.value = value_id; } } AdvanceITPtr(); if( !RecComma() ) break; } ReqCloseParen(); if( ReqNOpn() ) { AdvanceITPtr(); ReqEOS(); } }
void CpEquivalence(void) { //======================= // Compile EQUIVALENCE statement. // EQUIVALENCE (A1,...,An) {,(B1,...,Bm)} . . . sym_id sym; int num_equived; intstar4 *subscripts; int eq_size; act_eq_entry *new_eq; act_eq_entry *eqv_entry; act_eq_entry *eq_head; act_eq_entry *eq_set; bool ill_name; bool sub_strung; act_eq_entry equiv; eq_set = EquivSets; if( EquivSets != NULL ) { while( eq_set->next_eq_set != NULL ) { eq_set = eq_set->next_eq_set; } } for(;;) { if( RecNOpn() ) { AdvanceITPtr(); } ReqOpenParen(); eqv_entry = NULL; eq_head = NULL; num_equived = 0; for(;;) { AError = FALSE; if( ReqName( NAME_VAR_OR_ARR ) ) { num_equived++; sym = LkSym(); ill_name = TRUE; if( ( sym->ns.flags & SY_CLASS ) == SY_VARIABLE ) { if( sym->ns.flags & SY_DATA_INIT ) { NameErr( ST_DATA_ALREADY, sym ); } else if( sym->ns.flags & SY_SUB_PARM ) { IllName( sym ); } else if( ( sym->ns.flags & SY_SUBSCRIPTED ) && _Allocatable( sym ) ) { IllName( sym ); } else { sym->ns.flags |= SY_IN_EQUIV; ill_name = FALSE; } } else { IllName( sym ); } AdvanceITPtr(); equiv.name_equived = sym; equiv.next_eq_entry = NULL; equiv.next_eq_set = NULL; equiv.subs_no = 0; equiv.substr = 0; equiv.substr1 = 1; equiv.substr2 = 0; subscripts = equiv.subscrs; if( RecOpenParen() ) { if( !RecNOpn() || !RecNextOpr( OPR_COL ) ) { sub_strung = FALSE; for(;;) { CIntExpr(); *subscripts = ITIntValue( CITNode ); AdvanceITPtr(); if( RecColon() ) { sub_strung = TRUE; break; } subscripts++; equiv.subs_no++; if( equiv.subs_no == MAX_DIM ) break; if( !RecComma() ) break; } if( !sub_strung ) { ReqCloseParen(); ReqNOpn(); AdvanceITPtr(); if( RecOpenParen() ) { *subscripts = 1; if( !RecNOpn() ) { CIntExpr(); *subscripts = ITIntValue( CITNode ); } AdvanceITPtr(); sub_strung = ReqColon(); } } } else { sub_strung = TRUE; } if( sub_strung ) { equiv.substr = 1; if( SubStr2( subscripts ) ) { equiv.substr = 2; } } } if( AError ) { equiv.subs_no = 0; equiv.substr = 0; } if( ( ( SgmtSw & SG_SYMTAB_RESOLVED ) == 0 ) && !ill_name ) { eq_size = sizeof( eq_entry ) + equiv.subs_no * sizeof( intstar4 ); if( equiv.substr != 0 ) { eq_size += 2 * sizeof( intstar4 ); } new_eq = FMemAlloc( eq_size ); memcpy( new_eq, &equiv, eq_size ); if( eqv_entry == NULL ) { eq_head = new_eq; eqv_entry = new_eq; } else { eqv_entry->next_eq_entry = new_eq; eqv_entry = new_eq; } if( sym->ns.si.va.vi.ec_ext == NULL ) { sym->ns.si.va.vi.ec_ext = STComEq(); } } } else { AdvanceITPtr(); } if( !RecComma() ) break; } if( num_equived < 2 ) { Error( EV_EQUIV_LIST ); } if( eq_set == NULL ) { eq_set = eq_head; EquivSets = eq_head; } else { eq_set->next_eq_set = eq_head; eq_set = eq_head; } ReqCloseParen(); ReqNOpn(); AdvanceITPtr(); if( !RecComma() ) break; } ReqEOS(); }