fix protected/safe call sites in code examples to omit errhandler_index

examples/cmdline/duk_cmdline.c

@@ -120,7 +120,7 @@ static void print_error(duk_context *ctx, FILE *f) {
 	 * Note that getting the stack trace may throw an error
 	 * so this also needs to be safe call wrapped.
 	 */
-	(void) duk_safe_call(ctx, get_stack_raw, 1 /*nargs*/, 1 /*nrets*/, DUK_INVALID_INDEX);
+	(void) duk_safe_call(ctx, get_stack_raw, 1 /*nargs*/, 1 /*nrets*/);
 	fprintf(f, "%s\n", duk_safe_to_string(ctx, -1));
 	fflush(f);
 	duk_pop(ctx);
@@ -216,7 +216,7 @@ int handle_fh(duk_context *ctx, FILE *f, const char *filename) {
 
 	interactive_mode = 0;  /* global */
 
-	rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/, DUK_INVALID_INDEX);
+	rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
 	if (rc != DUK_EXEC_SUCCESS) {
 		print_error(ctx, stderr);
 		goto error;
@@ -308,7 +308,7 @@ int handle_interactive(duk_context *ctx) {
 
 		interactive_mode = 1;  /* global */
 
-		rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/, DUK_INVALID_INDEX);
+		rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
 		if (rc != DUK_EXEC_SUCCESS) {
 			/* in interactive mode, write to stdout */
 			print_error(ctx, stdout);
@@ -369,7 +369,7 @@ int handle_interactive(duk_context *ctx) {
 
 		interactive_mode = 1;  /* global */
 
-		rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/, DUK_INVALID_INDEX);
+		rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
 		if (rc != DUK_EXEC_SUCCESS) {
 			/* in interactive mode, write to stdout */
 			print_error(ctx, stdout);

examples/eval/eval.c

@@ -35,8 +35,8 @@ int main(int argc, char *argv[]) {
 	for (i = 1; i < argc; i++) {
 		printf("=== eval: '%s' ===\n", argv[i]);
 		duk_push_string(ctx, argv[i]);
-		duk_safe_call(ctx, eval_raw, 1 /*nargs*/, 1 /*nrets*/, DUK_INVALID_INDEX);
-		duk_safe_call(ctx, tostring_raw, 1 /*nargs*/, 1 /*nrets*/, DUK_INVALID_INDEX);
+		duk_safe_call(ctx, eval_raw, 1 /*nargs*/, 1 /*nrets*/);
+		duk_safe_call(ctx, tostring_raw, 1 /*nargs*/, 1 /*nrets*/);
 		res = duk_get_string(ctx, -1);
 		printf("%s\n", res ? res : "null");
 		duk_pop(ctx);

examples/eventloop/c_eventloop.c

@@ -175,7 +175,7 @@ static void expire_timers(duk_context *ctx) {
 
 		duk_push_number(ctx, (double) t->id);
 		duk_get_prop(ctx, -2);  /* -> [ ... stash eventTimers func ] */
-		rc = duk_pcall(ctx, 0 /*nargs*/, DUK_INVALID_INDEX);  /* -> [ ... stash eventTimers retval ] */
+		rc = duk_pcall(ctx, 0 /*nargs*/);  /* -> [ ... stash eventTimers retval ] */
 		if (rc != 0) {
 #if 0
 			fprintf(stderr, "timer callback failed for timer %d: %s\n", (int) t->id, duk_to_string(ctx, -1));
@@ -374,7 +374,7 @@ int eventloop_run(duk_context *ctx) {
 				duk_dup(ctx, idx_eventloop);
 				duk_push_int(ctx, pfd->fd);
 				duk_push_int(ctx, pfd->revents);
-				rc = duk_pcall_method(ctx, 2 /*nargs*/, DUK_INVALID_INDEX);
+				rc = duk_pcall_method(ctx, 2 /*nargs*/);
 				if (rc) {
 #if 0
 					fprintf(stderr, "fd callback failed for fd %d: %s\n", (int) pfd->fd, duk_to_string(ctx, -1));

examples/eventloop/main.c

@@ -82,7 +82,7 @@ int wrapped_compile_execute(duk_context *ctx) {
 	if (c_evloop) {
 		fprintf(stderr, "calling eventloop_run()\n");
 		fflush(stderr);
-		rc = duk_safe_call(ctx, eventloop_run, 0 /*nargs*/, 1 /*nrets*/, DUK_INVALID_INDEX);
+		rc = duk_safe_call(ctx, eventloop_run, 0 /*nargs*/, 1 /*nrets*/);
 		if (rc != 0) {
 			fprintf(stderr, "eventloop_run() failed: %s\n", duk_to_string(ctx, -1));
 			fflush(stderr);
@@ -125,7 +125,7 @@ int handle_fh(duk_context *ctx, FILE *f, const char *filename) {
 	free(buf);
 	buf = NULL;
 
-	rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/, DUK_INVALID_INDEX);
+	rc = duk_safe_call(ctx, wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
 	if (rc != DUK_EXEC_SUCCESS) {
 		print_error(ctx, stderr);
 		goto error;