NJS: loader should be registered using njs_vm_set_module_loader()

This change makes NJS module incompatible with NJS older than 0.8.3.
Therefore, the configuration version check has been adjusted accordingly.

This change was introduced in NJS 0.8.3 here:
<https://hg.nginx.com/njs/rev/ad1a7ad3c715>

6 files changed, 19 insertions, 25 deletions

diff --git a/auto/njs b/auto/njs
index c54a27c7..e5314d31 100644
--- a/auto/njs
+++ b/auto/njs
@@ -25,8 +25,8 @@ nxt_feature_incs="$NXT_NJS_CFLAGS $NXT_NJS_AUX_CFLAGS"
 nxt_feature_libs="$NXT_NJS_LIBS $NXT_NJS_AUX_LIBS"
 nxt_feature_test="#include <njs.h>
 
-                  #if NJS_VERSION_NUMBER < 0x000800
-                  # error NJS < 0.8.0 is not supported.
+                  #if NJS_VERSION_NUMBER < 0x000803
+                  # error NJS < 0.8.3 is not supported.
                   #endif
 
                   int main(void) {
@@ -44,7 +44,7 @@ nxt_feature_test="#include <njs.h>
 
 if [ $nxt_found = no ]; then
     $echo
-    $echo $0: error: no NJS library \>= 0.8.0 found.
+    $echo $0: error: no NJS library \>= 0.8.3 found.
     $echo
     exit 1;
 fi
diff --git a/docs/changes.xml b/docs/changes.xml
index 6428d65e..84682308 100644
--- a/docs/changes.xml
+++ b/docs/changes.xml
@@ -34,6 +34,12 @@ NGINX Unit updated to 1.33.0.
          date="" time=""
          packager="Nginx Packaging &lt;nginx-packaging@f5.com&gt;">
 
+<change type="change">
+<para>
+if building with NJS, version 0.8.3 or later is now required.
+</para>
+</change>
+
 </changes>
 
 
diff --git a/pkg/contrib/src/njs/SHA512SUMS b/pkg/contrib/src/njs/SHA512SUMS
index 43766487..47dbee05 100644
--- a/pkg/contrib/src/njs/SHA512SUMS
+++ b/pkg/contrib/src/njs/SHA512SUMS
@@ -1 +1 @@
-cc3110a0c6866dfc03d19c58745e5b75aa9792999db45bc55a752f7b04db8ae51322bfe0156b873109c8477c6c1a030c851c770697cf6791c6e89fb2fed0a2c5  njs-0.8.2.tar.gz
+1cec9a322c40aa2b4ec6eb5bea78d7442880b0cff3a41ad171a3dc3157a6990baec6c8b9eda99ee02a9e51c0b933f13ef17431079a5ff409aaf84b912c7f4df7  njs-0.8.3.tar.gz
diff --git a/pkg/contrib/src/njs/version b/pkg/contrib/src/njs/version
index 00453419..8b8d5b91 100644
--- a/pkg/contrib/src/njs/version
+++ b/pkg/contrib/src/njs/version
@@ -1 +1 @@
-NJS_VERSION := 0.8.2
+NJS_VERSION := 0.8.3
diff --git a/src/nxt_js.c b/src/nxt_js.c
index 6885afb7..1f9a3ceb 100644
--- a/src/nxt_js.c
+++ b/src/nxt_js.c
@@ -69,14 +69,6 @@ nxt_js_module_loader(njs_vm_t *vm, njs_external_ptr_t external, njs_str_t *name)
 }
 
 
-static njs_vm_ops_t  nxt_js_ops = {
-    NULL,
-    NULL,
-    nxt_js_module_loader,
-    NULL,
-};
-
-
 njs_int_t  nxt_js_proto_id;
 
 
@@ -127,6 +119,7 @@ nxt_js_vm_create(nxt_js_conf_t *jcf)
 {
     u_char           *p;
     size_t           size;
+    njs_vm_t         *vm;
     nxt_uint_t       i;
     njs_vm_opt_t     opts;
     nxt_js_module_t  *module, *mod;
@@ -146,7 +139,6 @@ nxt_js_vm_create(nxt_js_conf_t *jcf)
         goto done;
     }
 
-    opts.ops = &nxt_js_ops;
     opts.external = jcf;
 
     size = 0;
@@ -203,7 +195,13 @@ nxt_js_vm_create(nxt_js_conf_t *jcf)
 
 done:
 
-    return njs_vm_create(&opts);
+    vm = njs_vm_create(&opts);
+
+    if (nxt_fast_path(vm != NULL)) {
+        njs_vm_set_module_loader(vm, nxt_js_module_loader, jcf);
+    }
+
+    return vm;
 }
 
 
diff --git a/src/nxt_script.c b/src/nxt_script.c
index 70045a22..05d9561d 100644
--- a/src/nxt_script.c
+++ b/src/nxt_script.c
@@ -37,14 +37,6 @@ static void nxt_script_buf_completion(nxt_task_t *task, void *obj, void *data);
 static nxt_lvlhsh_t  nxt_script_info;
 
 
-static njs_vm_ops_t  nxt_js_ops = {
-    NULL,
-    NULL,
-    nxt_js_module_loader,
-    NULL,
-};
-
-
 nxt_script_t *
 nxt_script_new(nxt_task_t *task, nxt_str_t *name, u_char *data, size_t size,
     u_char *error)
@@ -63,8 +55,6 @@ nxt_script_new(nxt_task_t *task, nxt_str_t *name, u_char *data, size_t size,
     opts.file.start = (u_char *) "default";
     opts.file.length = 7;
 
-    opts.ops = &nxt_js_ops;
-
     vm = njs_vm_create(&opts);
     if (nxt_slow_path(vm == NULL)) {
         return NULL;