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more refactoring; things seem to work fine

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all example scripts run fine with GC_STRESS enabled
This commit is contained in:
CPunch 2023-08-30 12:00:52 -05:00 committed by cpunch
parent d30bcace9a
commit c0893b8a14
5 changed files with 38 additions and 118 deletions
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74
src/cbaselib.c
View File

@ -30,7 +30,6 @@ int cosmoB_assert(CState *state, int nargs, CValue *args)
{
if (nargs < 1 || nargs > 2) {
cosmoV_error(state, "assert() expected 1 or 2 arguments, got %d!", nargs);
return 0; // nothing pushed onto the stack to return
}
if (!IS_BOOLEAN(args[0]) || (nargs == 2 && !IS_STRING(args[1]))) {
@ -40,7 +39,6 @@ int cosmoB_assert(CState *state, int nargs, CValue *args)
} else {
cosmoV_typeError(state, "assert()", "<boolean>", "%s", cosmoV_typeStr(args[0]));
}
return 0;
}
if (!cosmoV_readBoolean(args[0])) // expression passed was false, error!
@ -53,7 +51,6 @@ int cosmoB_type(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "type() expected 1 argument, got %d!", nargs);
return 0;
}
// push the type string to the stack
@ -65,7 +62,6 @@ int cosmoB_pcall(CState *state, int nargs, CValue *args)
{
if (nargs < 1) {
cosmoV_error(state, "pcall() expected at least 1 argument!");
return 0;
}
// call the passed callable, the passed arguments are already in the
@ -81,7 +77,6 @@ int cosmoB_tonumber(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "tonumber() expected 1 argument, got %d!", nargs);
return 0;
}
cosmoV_pushNumber(state, cosmoV_toNumber(state, args[0]));
@ -90,10 +85,8 @@ int cosmoB_tonumber(CState *state, int nargs, CValue *args)
int cosmoB_tostring(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
if (nargs != 1)
cosmoV_error(state, "tostring() expected 1 argument, got %d!", nargs);
return 0;
}
cosmoV_pushRef(state, (CObj *)cosmoV_toString(state, args[0]));
return 1;
@ -103,12 +96,10 @@ int cosmoB_loadstring(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "loadstring() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0])) {
cosmoV_typeError(state, "loadstring()", "<string>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -122,12 +113,10 @@ int cosmoB_error(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "error() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0])) {
cosmoV_typeError(state, "error()", "<string>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_error(state, "%s", cosmoV_readCString(args[0]));
@ -176,10 +165,8 @@ int cosmoB_osetProto(CState *state, int nargs, CValue *args)
int cosmoB_ogetProto(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
if (nargs != 1)
cosmoV_error(state, "Expected 1 argument, got %d!", nargs);
return 0;
}
cosmoV_pushRef(state, (CObj *)cosmoV_readObject(args[0])->_obj.proto); // just return the proto
@ -190,13 +177,11 @@ int cosmoB_oisChild(CState *state, int nargs, CValue *args)
{
if (nargs != 2) {
cosmoV_error(state, "object.ischild() expected 2 arguments, got %d!", nargs);
return 0;
}
if (!IS_REF(args[0]) || !IS_OBJECT(args[1])) {
cosmoV_typeError(state, "object.ischild()", "<reference obj>, <object>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
CObj *obj = cosmoV_readRef(args[0]);
@ -255,12 +240,10 @@ int cosmoB_osRead(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "os.read() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0])) {
cosmoV_typeError(state, "os.read()", "<string>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -301,7 +284,6 @@ int cosmoB_osTime(CState *state, int nargs, CValue *args)
struct timeval time;
if (nargs > 0) {
cosmoV_error(state, "os.time() expected no arguments, got %d!", nargs);
return 0;
}
gettimeofday(&time, NULL);
@ -314,12 +296,10 @@ int cosmoB_osSystem(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "os.system() expects 1 argument, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0])) {
cosmoV_typeError(state, "os.system()", "<string>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
// run the command and return the exit code
@ -354,7 +334,6 @@ int cosmoB_sSub(CState *state, int nargs, CValue *args)
if (!IS_STRING(args[0]) || !IS_NUMBER(args[1])) {
cosmoV_typeError(state, "string.sub()", "<string>, <number>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -364,7 +343,6 @@ int cosmoB_sSub(CState *state, int nargs, CValue *args)
if (indx < 0 || indx >= str->length) {
cosmoV_error(state, "string.sub() expected index to be 0-%d, got %d!", str->length - 1,
indx);
return 0;
}
cosmoV_pushLString(state, str->str + ((int)indx), str->length - ((int)indx));
@ -373,7 +351,6 @@ int cosmoB_sSub(CState *state, int nargs, CValue *args)
cosmoV_typeError(state, "string.sub()", "<string>, <number>, <number>", "%s, %s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]),
cosmoV_typeStr(args[2]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -385,13 +362,11 @@ int cosmoB_sSub(CState *state, int nargs, CValue *args)
cosmoV_error(
state, "string.sub() expected subbed string goes out of bounds, max length is %d!",
str->length);
return 0;
}
cosmoV_pushLString(state, str->str + ((int)indx), ((int)length));
} else {
cosmoV_error(state, "string.sub() expected 2 or 3 arguments, got %d!", nargs);
return 0;
}
return 1;
@ -404,7 +379,6 @@ int cosmoB_sFind(CState *state, int nargs, CValue *args)
if (!IS_STRING(args[0]) || !IS_STRING(args[1])) {
cosmoV_typeError(state, "string.find()", "<string>, <string>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -425,7 +399,6 @@ int cosmoB_sFind(CState *state, int nargs, CValue *args)
cosmoV_typeError(state, "string.find()", "<string>, <string>, <number>", "%s, %s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]),
cosmoV_typeStr(args[2]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -444,7 +417,6 @@ int cosmoB_sFind(CState *state, int nargs, CValue *args)
cosmoV_pushNumber(state, (cosmo_Number)(indx - str->str));
} else {
cosmoV_error(state, "string.find() expected 2 or 3 arguments, got %d!", nargs);
return 0;
}
return 1;
@ -455,13 +427,11 @@ int cosmoB_sSplit(CState *state, int nargs, CValue *args)
{
if (nargs != 2) {
cosmoV_error(state, "string.split() expected 2 arguments, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0]) || !IS_STRING(args[1])) {
cosmoV_typeError(state, "string.split()", "<string>, <string>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -492,12 +462,10 @@ int cosmoB_sByte(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "string.byte() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0])) {
cosmoV_typeError(state, "string.byte", "<string>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -518,12 +486,10 @@ int cosmoB_sChar(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "string.char() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "string.char", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
// small side effect of truncating the number, but ignoring the decimal instead of throwing an
@ -533,7 +499,6 @@ int cosmoB_sChar(CState *state, int nargs, CValue *args)
if (num > 255 || num < 0) {
cosmoV_error(state, "Character expected to be in range 0-255, got %d!", num);
return 0;
}
// basically, treat the character value on the C stack as an """"array"""" with a length of 1
@ -545,12 +510,10 @@ int cosmoB_sLen(CState *state, int nargs, CValue *args)
{
if (nargs < 1) {
cosmoV_error(state, "string.len() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_STRING(args[0])) {
cosmoV_typeError(state, "string.len", "<string>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, (cosmo_Number)strlen(cosmoV_readCString(args[0])));
@ -562,14 +525,12 @@ int cosmoB_sRep(CState *state, int nargs, CValue *args)
{
if (nargs != 2) {
cosmoV_error(state, "string.rep() expected 2 arguments, got %d!", nargs);
return 0;
}
// expects <string>, <number>
if (!IS_STRING(args[0]) || !IS_NUMBER(args[1])) {
cosmoV_typeError(state, "string.rep", "<string>, <number>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
CObjString *str = cosmoV_readString(args[0]);
@ -627,12 +588,10 @@ int cosmoB_mAbs(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.abs() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.abs", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, fabs(cosmoV_readNumber(args[0])));
@ -644,12 +603,10 @@ int cosmoB_mFloor(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.floor() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.floor", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, (int)cosmoV_readNumber(args[0]));
@ -661,12 +618,10 @@ int cosmoB_mCeil(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.ceil() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.ceil", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
int roundedDown = (int)cosmoV_readNumber(args[0]);
@ -685,12 +640,10 @@ int cosmoB_mSin(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.sin() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.sin", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, sin(cosmoV_readNumber(args[0])));
@ -701,12 +654,10 @@ int cosmoB_mCos(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.cos() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.cos", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, cos(cosmoV_readNumber(args[0])));
@ -717,12 +668,10 @@ int cosmoB_mTan(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.tan() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.tan", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, tan(cosmoV_readNumber(args[0])));
@ -733,12 +682,10 @@ int cosmoB_mASin(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.asin() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.asin", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, asin(cosmoV_readNumber(args[0])));
@ -749,12 +696,10 @@ int cosmoB_mACos(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.acos() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.acos", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, acos(cosmoV_readNumber(args[0])));
@ -765,12 +710,10 @@ int cosmoB_mATan(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.atan() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.atan", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
cosmoV_pushNumber(state, atan(cosmoV_readNumber(args[0])));
@ -781,12 +724,10 @@ int cosmoB_mRad(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.rad() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.rad", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
// convert the degree to radians
@ -798,12 +739,10 @@ int cosmoB_mDeg(CState *state, int nargs, CValue *args)
{
if (nargs != 1) {
cosmoV_error(state, "math.deg() expected 1 argument, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[0])) {
cosmoV_typeError(state, "math.deg", "<number>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
// convert the degree to radians
@ -852,13 +791,11 @@ 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.__setter[\"globals\"]", "<object>, <table>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
// this makes me very nervous ngl
@ -874,13 +811,11 @@ int cosmoB_vdisassemble(CState *state, int nargs, CValue *args)
if (nargs != 1) {
cosmoV_error(state, "Expected 1 argument, got %d!", nargs);
return 0;
}
// get the closure
if (!IS_CLOSURE(args[0])) {
cosmoV_typeError(state, "vm.disassemble", "<closure>", "%s", cosmoV_typeStr(args[0]));
return 0;
}
closure = cosmoV_readClosure(args[0]);
@ -895,13 +830,11 @@ int cosmoB_vindexBProto(CState *state, int nargs, CValue *args)
{
if (nargs != 2) {
cosmoV_error(state, "Expected 2 arguments, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[1])) {
cosmoV_typeError(state, "baseProtos.__index", "<object>, <number>", "%s, %s",
cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]));
return 0;
}
int indx = (int)cosmoV_readNumber(args[1]);
@ -923,14 +856,12 @@ int cosmoB_vnewindexBProto(CState *state, int nargs, CValue *args)
{
if (nargs != 3) {
cosmoV_error(state, "Expected 3 arguments, got %d!", nargs);
return 0;
}
if (!IS_NUMBER(args[1]) || !IS_OBJECT(args[2])) {
cosmoV_typeError(state, "baseProtos.__newindex", "<object>, <number>, <object>",
"%s, %s, %s", cosmoV_typeStr(args[0]), cosmoV_typeStr(args[1]),
cosmoV_typeStr(args[2]));
return 0;
}
int indx = (int)cosmoV_readNumber(args[1]);
@ -938,7 +869,6 @@ int cosmoB_vnewindexBProto(CState *state, int nargs, CValue *args)
if (indx >= COBJ_MAX || indx < 0) {
cosmoV_error(state, "index out of range! expected 0 - %d, got %d!", COBJ_MAX, indx);
return 0;
}
cosmoV_registerProtoObject(state, indx, proto);

2
src/clex.c
View File

@ -90,7 +90,7 @@ static char *cutBuffer(CLexState *state, int *length)
resetBuffer(state);
// shrink the buffer to only use what we need
return cosmoM_reallocate(state->cstate, buf, cap, count, true);
return cosmoM_reallocate(state->cstate, buf, cap, count);
}
static CToken makeToken(CLexState *state, CTokenType type)

8
src/cmem.c
View File

@ -8,7 +8,7 @@
#include "cvalue.h"
// realloc wrapper
void *cosmoM_reallocate(CState *state, void *buf, size_t oldSize, size_t newSize, bool isGC)
void *cosmoM_reallocate(CState *state, void *buf, size_t oldSize, size_t newSize)
{
if (buf == NULL)
oldSize = 0;
@ -34,7 +34,6 @@ void *cosmoM_reallocate(CState *state, void *buf, size_t oldSize, size_t newSize
return NULL;
}
if (isGC) {
#ifdef GC_STRESS
if (!(cosmoM_isFrozen(state)) && newSize > oldSize) {
cosmoM_collectGarbage(state);
@ -47,7 +46,6 @@ void *cosmoM_reallocate(CState *state, void *buf, size_t oldSize, size_t newSize
#else
cosmoM_checkGarbage(state, 0);
#endif
}
// if NULL is passed, realloc() acts like malloc()
void *newBuf = realloc(buf, newSize);
@ -208,7 +206,7 @@ static void markObject(CState *state, CObj *obj)
return;
// we can use cosmoM_growarray because we lock the GC when we entered in cosmoM_collectGarbage
cosmoM_growArrayNonGC(state, CObj *, state->grayStack.array, state->grayStack.count,
cosmoM_growArray(state, CObj *, state->grayStack.array, state->grayStack.count,
state->grayStack.capacity);
state->grayStack.array[state->grayStack.count++] = obj;
@ -298,6 +296,7 @@ static void markRoots(CState *state)
COSMO_API void cosmoM_collectGarbage(CState *state)
{
cosmoM_freezeGC(state);
#ifdef GC_DEBUG
printf("-- GC start\n");
size_t start = state->allocatedBytes;
@ -317,6 +316,7 @@ COSMO_API void cosmoM_collectGarbage(CState *state)
"scheduled at %ld bytes\n",
start - state->allocatedBytes, start, state->allocatedBytes, state->nextGC);
#endif
cosmoM_unfreezeGC(state);
}
COSMO_API void cosmoM_updateThreshhold(CState *state)

25
src/cmem.h
View File

@ -15,38 +15,30 @@
# define cosmoM_freeArray(state, type, buf, capacity) \
printf("freeing array %p [size %lu] at %s:%d\n", buf, sizeof(type) * capacity, __FILE__, \
__LINE__); \
cosmoM_reallocate(state, buf, sizeof(type) * capacity, 0, true)
cosmoM_reallocate(state, buf, sizeof(type) * capacity, 0)
#else
# define cosmoM_freeArray(state, type, buf, capacity) \
cosmoM_reallocate(state, buf, sizeof(type) * capacity, 0, true)
cosmoM_reallocate(state, buf, sizeof(type) * capacity, 0)
#endif
#define cosmoM_growArray(state, type, buf, count, capacity) \
if (count >= capacity || buf == NULL) { \
int old = capacity; \
capacity = old * GROW_FACTOR; \
buf = (type *)cosmoM_reallocate(state, buf, sizeof(type) * old, sizeof(type) * capacity, \
true); \
}
#define cosmoM_growArrayNonGC(state, type, buf, count, capacity) \
if (count >= capacity || buf == NULL) { \
int old = capacity; \
capacity = old * GROW_FACTOR; \
buf = (type *)cosmoM_reallocate(state, buf, sizeof(type) * old, sizeof(type) * capacity, \
false); \
buf = (type *)cosmoM_reallocate(state, buf, sizeof(type) * old, sizeof(type) * capacity); \
}
#ifdef GC_DEBUG
# define cosmoM_free(state, type, x) \
printf("freeing %p [size %lu] at %s:%d\n", x, sizeof(type), __FILE__, __LINE__); \
cosmoM_reallocate(state, x, sizeof(type), 0, true)
cosmoM_reallocate(state, x, sizeof(type), 0)
#else
# define cosmoM_free(state, type, x) cosmoM_reallocate(state, x, sizeof(type), 0, true)
# define cosmoM_free(state, type, x) cosmoM_reallocate(state, x, sizeof(type), 0)
#endif
#define cosmoM_isFrozen(state) (state->freezeGC > 0)
// cosmoM_freezeGC should only be used in the garbage collector !
// if debugging, print the locations of when the state is frozen/unfrozen
#ifdef GC_DEBUG
# define cosmoM_freezeGC(state) \
@ -69,8 +61,7 @@
#endif
COSMO_API void *cosmoM_reallocate(CState *state, void *buf, size_t oldSize, size_t newSize,
bool isGC);
COSMO_API void *cosmoM_reallocate(CState *state, void *buf, size_t oldSize, size_t newSize);
COSMO_API bool cosmoM_checkGarbage(CState *state,
size_t needed); // returns true if GC event was triggered
COSMO_API void cosmoM_collectGarbage(CState *state);
@ -86,7 +77,7 @@ COSMO_API void cosmoM_removeRoot(CState *state, CObj *oldRoot);
// wrapper for cosmoM_reallocate so we can track our memory usage
static inline void *cosmoM_xmalloc(CState *state, size_t sz)
{
return cosmoM_reallocate(state, NULL, 0, sz, true);
return cosmoM_reallocate(state, NULL, 0, sz);
}
#endif

31
src/cstate.h
View File

@ -44,33 +44,32 @@ typedef struct CPanic
{
jmp_buf jmp;
StkPtr top;
int frameCount;
struct CPanic *prev;
int frameCount;
} CPanic;
struct CState
{
int freezeGC; // when > 0, GC events will be ignored (for internal use)
int frameCount;
CPanic *panic;
CCallFrame callFrame[FRAME_MAX]; // call frames
CValue stack[STACK_MAX]; // stack
CObjObject *protoObjects[COBJ_MAX]; // proto object for each COBJ type [NULL = no default proto]
CObjString *iStrings[ISTRING_MAX]; // strings used internally by the VM, eg. __init, __index
CTable strings;
ArrayCObj grayStack; // keeps track of which objects *haven't yet* been traversed in our GC, but
// *have been* found
CObjUpval *openUpvalues; // tracks all of our still open (meaning still on the stack) upvalues
CObjTable *globals;
CValue *top; // top of the stack
CObj *objects; // tracks all of our allocated objects
CObj *userRoots; // user definable roots, this holds CObjs that should be considered "roots",
// lets the VM know you are holding a reference to a CObj in your code
ArrayCObj grayStack; // keeps track of which objects *haven't yet* been traversed in our GC, but
// *have been* found
CPanic *panic;
int freezeGC; // when > 0, GC events will be ignored (for internal use)
int frameCount;
size_t allocatedBytes;
size_t nextGC; // when allocatedBytes reaches this threshhold, trigger a GC event
CObjUpval *openUpvalues; // tracks all of our still open (meaning still on the stack) upvalues
CTable strings;
CObjTable *globals;
CValue *top; // top of the stack
CObjObject *protoObjects[COBJ_MAX]; // proto object for each COBJ type [NULL = no default proto]
CObjString *iStrings[ISTRING_MAX]; // strings used internally by the VM, eg. __init, __index
CCallFrame callFrame[FRAME_MAX]; // call frames
CValue stack[STACK_MAX]; // stack
};
CPanic *cosmoV_newPanic(CState *state);