Fixed table iteration bug, added vm.globals to debug lib

src/cbaselib.c

@@ -338,14 +338,41 @@ int cosmoB_dgetProto(CState *state, int nargs, CValue *args) {
     return 1; // 1 result
 }
 
+
+// ================================================================ [VM.*] ================================================================
+
+int cosmoB_vgetGlobal(CState *state, int nargs, CValue *args) {
+    // this function doesn't need to check anything, just return the global table
+    cosmoV_pushObj(state, (CObj*)state->globals);
+    return 1;
+}
+
+// hmmm i guess i could allow this?? no idea how the VM will react to the global table being suddenly being yoinked
+int cosmoB_vsetGlobal(CState *state, int nargs, CValue *args) {
+    if (nargs != 2) {
+        cosmoV_error(state, "Expected 2 argumenst, got %d!", nargs);
+        return 0;
+    }
+
+    if (!IS_TABLE(args[1])) {
+        cosmoV_typeError(state, "vm.__getter.globals", "<object>, <table>", "%s, %s", cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
+        return 0;
+    }
+
+    // this makes me very nervous ngl
+    CObjTable *tbl = (CObjTable*)cosmoV_readObj(args[1]);
+    state->globals = tbl;
+    return 0;
+}
+
 int cosmoB_vindexBProto(CState *state, int nargs, CValue *args) {
     if (nargs != 2) {
-        cosmoV_error(state, "Expected 2 argument, got %d!", nargs);
+        cosmoV_error(state, "Expected 2 arguments, got %d!", nargs);
         return 0;
     }
 
     if (!IS_NUMBER(args[1])) {
-        cosmoV_typeError(state, "baseProtos.__index", "<number>", "%s", cosmoV_typeStr(args[0]));
+        cosmoV_typeError(state, "baseProtos.__index", "<object>, <number>", "%s, %s", cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
         return 0;
     }
 
@@ -410,6 +437,7 @@ void cosmoB_loadDebug(CState *state) {
 
     // set debug protos to the debug object
     cosmoV_registerProtoObject(state, COBJ_OBJECT, obj);
+    cosmoV_pop(state); // pops the debug object
 
     // make vm.* object
     cosmoV_pushString(state, "vm");
@@ -424,10 +452,27 @@ void cosmoB_loadDebug(CState *state) {
     cosmoV_pushCFunction(state, cosmoB_vnewindexBProto);
 
     cosmoV_makeObject(state, 2); // makes the baseProtos object
-    cosmoV_makeObject(state, 1); // makes the vm object
+
+    // make __getter table for vm object
+    cosmoV_pushString(state, "__getter");
+
+    cosmoV_pushString(state, "globals");
+    cosmoV_pushCFunction(state, cosmoB_vgetGlobal);
+
+    cosmoV_makeTable(state, 1);
+
+    // make __setter table for vm object
+    cosmoV_pushString(state, "__setter");
+
+    cosmoV_pushString(state, "globals");
+    cosmoV_pushCFunction(state, cosmoB_vsetGlobal);
+
+    cosmoV_makeTable(state, 1);
+
+    cosmoV_makeObject(state, 3); // makes the vm object
 
     // register "vm" to the global table
     cosmoV_register(state, 1);
 
-    printf("[WARNING] the debug library has been loaded!");
+    printf("[WARNING] the debug library has been loaded!\n");
 }

src/cmem.c

@@ -235,7 +235,7 @@ void markRoots(CState *state) {
         markObject(state, (CObj*)upvalue);
     }
 
-    markTable(state, &state->globals);
+    markObject(state, (CObj*)state->globals);
 
     // mark all internal strings
     for (int i = 0; i < ISTRING_MAX; i++)

src/cobj.c

@@ -442,6 +442,12 @@ CObjString *cosmoO_toString(CState *state, CObj *obj) {
             CObjFunction *func = (CObjFunction*)obj;
             return func->name != NULL ? func->name : cosmoO_copyString(state, UNNAMEDCHUNK, strlen(UNNAMEDCHUNK)); 
         }
+        case COBJ_CFUNCTION: {
+            CObjCFunction *cfunc = (CObjCFunction*)obj;
+            char buf[64];
+            int sz = sprintf(buf, "<c function> %p", (void*)cfunc->cfunc) + 1; // +1 for the null character
+            return cosmoO_copyString(state, buf, sz);
+        }
         case COBJ_OBJECT: {
             char buf[64];
             int sz = sprintf(buf, "<obj> %p", (void*)obj) + 1; // +1 for the null character
@@ -456,8 +462,11 @@ CObjString *cosmoO_toString(CState *state, CObj *obj) {
             int sz = sprintf(buf, "<tbl> %p", (void*)obj) + 1; // +1 for the null character
             return cosmoO_copyString(state, buf, sz);
         }
-        default:
-            return cosmoO_copyString(state, "<unkn obj>", 10);
+        default: {
+            char buf[64];
+            int sz = sprintf(buf, "<unkn obj> %p", (void*)obj) + 1; // +1 for the null character
+            return cosmoO_copyString(state, buf, sz);
+        }
     }
 }
 

src/cosmo.h

@@ -38,6 +38,7 @@ typedef struct CObjCFunction CObjCFunction;
 typedef struct CObjMethod CObjMethod;
 typedef struct CObjError CObjError;
 typedef struct CObjObject CObjObject;
+typedef struct CObjTable CObjTable;
 typedef struct CObjClosure CObjClosure;
 
 typedef uint8_t INSTRUCTION;

src/cstate.c

@@ -42,7 +42,8 @@ CState *cosmoV_newState() {
         state->iStrings[i] = NULL;
 
     cosmoT_initTable(state, &state->strings, 16); // init string table
-    cosmoT_initTable(state, &state->globals, 8); // init global table
+
+    state->globals = cosmoO_newTable(state); // init global table
 
     // setup all strings used by the VM
     state->iStrings[ISTRING_INIT] = cosmoO_copyString(state, "__init", 6);
@@ -89,9 +90,8 @@ void cosmoV_freeState(CState *state) {
     for (int i = 0; i < ISTRING_MAX; i++)
         state->iStrings[i] = NULL;
 
-    // free our string & global table (the string table includes the internal VM strings)
+    // free our string table (the string table includes the internal VM strings)
     cosmoT_clearTable(state, &state->strings);
-    cosmoT_clearTable(state, &state->globals);
     
     // free our gray stack & finally free the state structure
     cosmoM_freearray(state, CObj*, state->grayStack.array, state->grayStack.capacity);
@@ -112,7 +112,7 @@ void cosmoV_register(CState *state, int pairs) {
         StkPtr key = cosmoV_getTop(state, 1);
         StkPtr val = cosmoV_getTop(state, 0);
 
-        CValue *oldVal = cosmoT_insert(state, &state->globals, *key);
+        CValue *oldVal = cosmoT_insert(state, &state->globals->tbl, *key);
         *oldVal = *val;
         
         cosmoV_setTop(state, 2); // pops the 2 values off the stack

src/cstate.h

@@ -47,7 +47,7 @@ typedef struct CState {
 
     CObjUpval *openUpvalues; // tracks all of our still open (meaning still on the stack) upvalues
     CTable strings;
-    CTable globals;
+    CObjTable *globals;
 
     CValue *top; // top of the stack
     CObjObject *protoObjects[COBJ_MAX]; // proto object for each COBJ type [NULL = no default proto]

src/cvm.c

@@ -303,7 +303,7 @@ bool callCValue(CState *state, CValue func, int args, int nresults, int offset)
     printf("\n");
     printIndent(state->frameCount - 1);
     printValue(func);
-    printf("()\n");
+    printf("(%d args)\n", args);
 #endif
 
     if (!IS_OBJ(func)) {
@@ -533,7 +533,7 @@ int _tbl__next(CState *state, int nargs, CValue *args) {
     } while (IS_NIL(entry->key) && index < cap);
     cosmoO_setUserI(state, obj, index); // update the userdata
 
-    if (!IS_NIL(entry->key)) { // if the entry is valid, return it's key and value pair
+    if (index < cap && !IS_NIL(entry->key)) { // if the entry is valid, return it's key and value pair
         cosmoV_pushValue(state, entry->key);
         cosmoV_pushValue(state, entry->val);
         return 2; // we pushed 2 values onto the stack for the return values
@@ -563,6 +563,7 @@ int cosmoV_execute(CState *state) {
 
     while (!state->panic) {
 #ifdef VM_DEBUG
+        cosmoV_printStack(state);
         disasmInstr(&frame->closure->function->chunk, frame->pc - frame->closure->function->chunk.buf, state->frameCount - 1);
         printf("\n");
 #endif
@@ -575,7 +576,7 @@ int cosmoV_execute(CState *state) {
             case OP_SETGLOBAL: {
                 uint16_t indx = READUINT();
                 CValue ident = constants[indx]; // grabs identifier
-                CValue *val = cosmoT_insert(state, &state->globals, ident);
+                CValue *val = cosmoT_insert(state, &state->globals->tbl, ident);
                 *val = *cosmoV_pop(state); // sets the value in the hash table
                 continue;
             }
@@ -583,7 +584,7 @@ int cosmoV_execute(CState *state) {
                 uint16_t indx = READUINT();
                 CValue ident = constants[indx]; // grabs identifier
                 CValue val; // to hold our value
-                cosmoT_get(&state->globals, ident, &val);
+                cosmoT_get(&state->globals->tbl, ident, &val);
                 cosmoV_pushValue(state, val); // pushes the value to the stack
                 continue;
             }
@@ -1003,7 +1004,7 @@ int cosmoV_execute(CState *state) {
                 int8_t inc = READBYTE() - 128; // amount we're incrementing by
                 uint16_t indx = READUINT();
                 CValue ident = constants[indx]; // grabs identifier
-                CValue *val = cosmoT_insert(state, &state->globals, ident);
+                CValue *val = cosmoT_insert(state, &state->globals->tbl, ident);
 
                 // check that it's a number value
                if (IS_NUMBER(*val)) {