//----------------------------------------- void statement(void) { switch(currentToken -> kind) { case ID: assignmentStatement(); break; case PRINTLN: printlnStatement(); break; default: displayErrorLoc(); printf("Scanning %s, expecting statement\n", currentToken -> image); abend(); } }
void statement (void) { //------------------------------------------------------------------- // NOTE: Since we currently don't support generic BEGIN/END (compound // statement) blocks... if ((curToken != TKN_CODE) /*&& (curToken != TKN_BEGIN)*/) crunchStatementMarker(); switch (curToken) { case TKN_IDENTIFIER: { SymTableNodePtr IdPtr = NULL; //-------------------------------------------------------------- // First, do we have an assignment statement or a function call? searchAndFindAllSymTables(IdPtr); if ((IdPtr->defn.key == DFN_FUNCTION)/* || (IdPtr->defn.key == DFN_MODULE)*/) { RoutineKey key = IdPtr->defn.info.routine.key; if ((key == RTN_ASSERT) || (key == RTN_PRINT) || (key == RTN_CONCAT)) { bool uncrunch = ((key == RTN_ASSERT) && !AssertEnabled) || ((key == RTN_PRINT) && !PrintEnabled) || ((key == RTN_CONCAT) && !StringFunctionsEnabled); if (uncrunch) { uncrunchStatementMarker(); Crunch = false; } } crunchSymTableNodePtr(IdPtr); if (IdPtr->defn.info.routine.flags & ROUTINE_FLAG_ORDER) { if (NumOrderCalls == MAX_ORDERS) syntaxError(ABL_ERR_SYNTAX_TOO_MANY_ORDERS); crunchByte((unsigned char)(NumOrderCalls / 32)); crunchByte((unsigned char)(NumOrderCalls % 32)); NumOrderCalls++; } getToken(); SymTableNodePtr thisRoutineIdPtr = CurRoutineIdPtr; routineCall(IdPtr, 1); CurRoutineIdPtr = thisRoutineIdPtr; Crunch = true; } else assignmentStatement(IdPtr); } break; case TKN_REPEAT: repeatStatement(); break; case TKN_WHILE: whileStatement(); break; case TKN_IF: ifStatement(); break; case TKN_FOR: forStatement(); break; case TKN_SWITCH: switchStatement(); break; case TKN_TRANS: transStatement(); break; case TKN_TRANS_BACK: transBackStatement(); break; } //--------------------------------------------------------------------- // Now, make sure the statement is closed off with the proper block end // statement, if necessary (which is usually the case :). synchronize(statementEndList, NULL, NULL); if (tokenIn(statementStartList)) syntaxError(ABL_ERR_SYNTAX_MISSING_SEMICOLON); }