IoMessage *IoMessage_opShuffle(IoMessage *self, IoObject *locals, IoMessage *m) { Levels *levels = Levels_new(self); List *expressions = List_new(); List_push_(expressions, self); while (List_size(expressions) >= 1) { IoMessage *n = List_pop(expressions); do { Levels_attach(levels, n, expressions); List_appendSeq_(expressions, DATA(n)->args); } while ((n = DATA(n)->next)); Levels_nextMessage(levels); } List_free(expressions); Levels_free(levels); return self; }
IoToken *IoLexer_addTokenString_length_type_(IoLexer *self, const char *s1, size_t len, IoTokenType type) { IoToken *top = IoLexer_currentToken(self); IoToken *t = IoToken_new(); t->lineNumber = IoLexer_currentLineNumber(self); //t->charNumber = (int)(s1 - self->s); t->charNumber = (int)(self->current - self->s); if (t->charNumber < 0) { printf("bad t->charNumber = %i\n", t->charNumber); } IoToken_name_length_(t, s1, len); IoToken_type_(t, type); if (top) { IoToken_nextToken_(top, t); } List_push_(self->tokenStream, t); #ifdef LEXER_DEBUG_TOKENS printf("token '%s' %s\n", t->name, IoToken_typeName(t)); #endif return t; }
void UDBIndex_findHoles(UDBIndex *self) { PID_TYPE pid = UDBIndex_pidCount(self); List_removeAll(self->holes); while (pid --) { if (!UDBIndex_posForPid_(self, pid)) { List_push_(self->holes, (void *)pid); } } }
void UDBIndex_setPos_forPid_(UDBIndex *self, PID_TYPE pos, PID_TYPE pid) { UDBIndexEntry entry; entry.pos = pos; //entry.size = 0; JFile_setPosition_(self->file, pid * sizeof(UDBIndexEntry)); JFile_fwrite(self->file, (unsigned char *)(&entry), sizeof(UDBIndexEntry), 1); if (pos == 0) { List_push_(self->holes, (void *)pid); } }
void Levels_attach(Levels *self, IoMessage *msg, List *expressions) { // TODO clean up this method. IoState *state = IoObject_state(msg); IoSymbol *messageSymbol = IoMessage_name(msg); char *messageName = CSTRING(messageSymbol); int precedence = Levels_levelForOp(self, messageName, messageSymbol, msg); int msgArgCount = IoMessage_argCount(msg); /* // o a := b c ; d becomes o setSlot("a", b c) ; d // // a attaching // := msg // b c msg->next */ if (Levels_isAssignOperator(self, messageSymbol)) { Level *currentLevel = Levels_currentLevel(self); IoMessage *attaching = currentLevel->message; IoSymbol *setSlotName; if (attaching == NULL) // := b ; { // Could be handled as, message(:= 42) -> setSlot(nil, 42) IoState_error_(state, msg, "compile error: %s requires a symbol to its left.", messageName); return; } if (IoMessage_argCount(attaching) > 0) // a(1,2,3) := b ; { IoState_error_(state, msg, "compile error: The symbol to the left of %s cannot have arguments.", messageName); return; } if (msgArgCount > 1) // setSlot("a") :=(b, c, d) e ; { IoState_error_(state, msg, "compile error: Assign operator passed multiple arguments, e.g., a := (b, c).", messageName); return; } { // a := b ; IoSymbol *slotName = DATA(attaching)->name; IoSymbol *quotedSlotName = IoSeq_newSymbolWithFormat_(state, "\"%s\"", CSTRING(slotName)); IoMessage *slotNameMessage = IoMessage_newWithName_returnsValue_(state, quotedSlotName, slotName); IoMessage_rawCopySourceLocation(slotNameMessage, attaching); // a := b ; -> a("a") := b ; IoMessage_addArg_(attaching, slotNameMessage); setSlotName = Levels_nameForAssignOperator(self, state, messageSymbol, slotName, msg); } // a("a") := b ; -> setSlot("a") := b ; DATA(attaching)->name = IoObject_addingRef_(attaching, setSlotName); currentLevel->type = ATTACH; if (msgArgCount > 0) // setSlot("a") :=(b c) d e ; { // b c IoMessage *arg = IoMessage_rawArgAt_(msg, 0); if (DATA(msg)->next == NULL || IoMessage_rawIsEOL(DATA(msg)->next)) { IoMessage_addArg_(attaching, arg); } else { // () IoMessage *foo = IoMessage_newWithName_(state, IoState_symbolWithCString_(state, "")); IoMessage_rawCopySourceLocation(foo, attaching); // () -> (b c) IoMessage_addArg_(foo, arg); // (b c) -> (b c) d e ; IoMessage_rawSetNext_(foo, DATA(msg)->next); // setSlot("a") :=(b c) d e ; -> setSlot("a", (b c) d e ;) :=(b c) d e ; IoMessage_addArg_(attaching, foo); } } else // setSlot("a") := b ; { // setSlot("a") := or setSlot("a") := ; IoMessage *mn = DATA(msg)->next; IoSymbol *name = mn ? DATA(mn)->name : NULL; IoSymbol *semi = IoObject_state(msg)->semicolonSymbol; //if (mn == NULL || IoMessage_rawIsEOL(mn)) if (mn == NULL || name == semi) { IoState_error_(state, msg, "compile error: %s must be followed by a value.", messageName); } // setSlot("a") := b c ; -> setSlot("a", b c ;) := b c ; IoMessage_addArg_(attaching, DATA(msg)->next); } // process the value (b c d) later (setSlot("a", b c d) := b c d ;) if (DATA(msg)->next != NULL && !IoMessage_rawIsEOL(DATA(msg)->next)) { List_push_(expressions, DATA(msg)->next); } { IoMessage *last = msg; while (DATA(last)->next != NULL && !IoMessage_rawIsEOL(DATA(last)->next)) { last = DATA(last)->next; } IoMessage_rawSetNext_(attaching, DATA(last)->next); // Continue processing in IoMessage_opShuffle loop IoMessage_rawSetNext_(msg, DATA(last)->next); if (last != msg) { IoMessage_rawSetNext_(last, NULL); } } // make sure b in 1 := b gets executed IoMessage_rawSetCachedResult_(attaching, NULL); } else if (IoMessage_rawIsEOL(msg)) { Levels_popDownTo(self, IO_OP_MAX_LEVEL-1); Level_attachAndReplace(Levels_currentLevel(self), msg); } else if (precedence != -1) // is an operator { if (msgArgCount > 0) { // move arguments off to their own message to make () after operators behave like Cs grouping () IoMessage *brackets = IoMessage_newWithName_(state, IoState_symbolWithCString_(state, "")); IoMessage_rawCopySourceLocation(brackets, msg); List_copy_(IoMessage_rawArgList(brackets), IoMessage_rawArgList(msg)); List_removeAll(IoMessage_rawArgList(msg)); // Insert the brackets message between msg and its next message IoMessage_rawSetNext_(brackets, DATA(msg)->next); IoMessage_rawSetNext_(msg, brackets); } Levels_popDownTo(self, precedence); Levels_attachToTopAndPush(self, msg, precedence); } else { Level_attachAndReplace(Levels_currentLevel(self), msg); } }