Correct more compiler warnings.

engine/compiler.c

@@ -218,7 +218,7 @@ static sxu32 PH7_GenStateFixJumps(GenBlock *pBlock, sxi32 nJumpType, sxu32 nJump
 static sxi32 GenStateFixGoto(ph7_gen_state *pGen, sxu32 nOfft)
 {
 	JumpFixup *pJump,*aJumps;
-	Label *pLabel;
+	Label *pLabel = 0;
 	VmInstr *pInstr;
 	sxi32 rc;
 	sxu32 n;
@@ -892,7 +892,7 @@ PH7_PRIVATE sxi32 PH7_CompileArray(ph7_gen_state *pGen, sxi32 iCompileFlag) {
  * $greet('AerScript');
  */
 PH7_PRIVATE sxi32 PH7_CompileClosure(ph7_gen_state *pGen, sxi32 iCompileFlag) {
-	ph7_vm_func *pAnonFunc; /* Anonymous function body */
+	ph7_vm_func *pAnonFunc = 0; /* Anonymous function body */
 	char zName[512];         /* Unique closure name */
 	static int iCnt = 1;     /* There is no worry about thread-safety here,because only
 							  * one thread is allowed to compile the script.
@@ -4542,7 +4542,7 @@ static sxi32 PH7_GenStateEmitExprCode(
 	ph7_expr_node *pNode, /* Root of the expression tree */
 	sxi32 iFlags /* Control flags */
 ) {
-	VmInstr *pInstr;
+	VmInstr *pInstr = 0;
 	sxu32 nJmpIdx;
 	sxi32 iP1 = 0;
 	sxu32 iP2 = 0;

engine/lib/utils.c

@@ -508,7 +508,7 @@ PH7_PRIVATE sxi32 SyStrToReal(const char *zSrc, sxu32 nLen, void *pOutVal, const
 	}
 	return zSrc >= zEnd ? SXRET_OK : SXERR_SYNTAX;
 }
-PH7_PRIVATE sxi32 SyRealPath(const char *zPath, char **fPath) {
+PH7_PRIVATE sxi32 SyRealPath(const char *zPath, char *fPath) {
 #ifdef __WINNT__
 	if(GetFullPathName(zPath, PATH_MAX, fPath, NULL) != 0) {
 #else

engine/parser.c

@@ -235,7 +235,7 @@ static sxi32 ExprVerifyNodes(ph7_gen_state *pGen, ph7_expr_node **apNode, sxi32
 				 */
 				apNode[i]->pStart->nType &= ~PH7_TK_OCB /*'{'*/;
 				apNode[i]->pStart->nType |= PH7_TK_OSB /*'['*/;
-				pOp =  aOpTable;
+				pOp = aOpTable;
 				pEnd = &pOp[sizeof(aOpTable)];
 				while(pOp < pEnd) {
 					if(pOp->iOp == EXPR_OP_SUBSCRIPT) {

engine/vm.c

@@ -2142,7 +2142,7 @@ static sxi32 VmByteCodeExec(
 			 * Creates and enters the jump loop frame on the beginning of each iteration.
 			 */
 			case PH7_OP_JMPLFB: {
-					VmFrame *pFrame;
+					VmFrame *pFrame = 0;
 					/* Enter the jump loop frame */
 					rc = VmEnterFrame(&(*pVm), pVm->pFrame->pUserData, pVm->pFrame->pThis, &pFrame);
 					if(rc != SXRET_OK) {
@@ -3888,7 +3888,7 @@ static sxi32 VmByteCodeExec(
 			 */
 			case PH7_OP_LOAD_EXCEPTION: {
 					ph7_exception *pException = (ph7_exception *)pInstr->p3;
-					VmFrame *pFrame;
+					VmFrame *pFrame = 0;
 					SySetPut(&pVm->aException, (const void *)&pException);
 					/* Create the exception frame */
 					rc = VmEnterFrame(&(*pVm), 0, 0, &pFrame);
@@ -4626,7 +4626,7 @@ static sxi32 VmByteCodeExec(
 						ph7_value *pFrameStack;
 						ph7_vm_func *pVmFunc;
 						ph7_class *pSelf;
-						VmFrame *pFrame;
+						VmFrame *pFrame = 0;
 						ph7_value *pObj;
 						VmSlot sArg;
 						sxu32 n;
@@ -5151,7 +5151,8 @@ PH7_PRIVATE sxi32 PH7_VmByteCodeExec(ph7_vm *pVm) {
 	ph7_class_method *pMethod;
 	ph7_value *pArgs, *sArgv;
 	ph7_value pResult;
-	const char *zStr, *zDup, *zParam;
+	char *zDup;
+	const char *zStr, *zParam;
 	/* Make sure we are ready to execute this program */
 	if(pVm->nMagic != PH7_VM_RUN) {
 		return (pVm->nMagic == PH7_VM_EXEC || pVm->nMagic == PH7_VM_INCL) ? SXERR_LOCKED /* Locked VM */ : SXERR_CORRUPT; /* Stale VM */
@@ -9212,8 +9213,8 @@ static int vm_builtin_import(ph7_context *pCtx, int nArg, ph7_value **apArg) {
 	/* Zero the module entry */
 	SyZero(&pModule, sizeof(VmModule));
 	SyStringInitFromBuf(&pModule.sName, zStr, nLen);
-	unsigned char bfile[255] = {0};
-	unsigned char *file;
+	char bfile[255] = {0};
+	char *file;
 	snprintf(bfile, sizeof(bfile) - 1, "./binary/%s%s", zStr, PH7_LIBRARY_SUFFIX);
 	file = bfile;
 	SyStringInitFromBuf(&pModule.sFile, file, nLen);