[gjs/mozjs91: 1/10] Adapt to new Maybe-based property descriptor API




commit 9d82f5909932727b9c7253937c559fd0724fd005
Author: Evan Welsh <contact evanwelsh com>
Date:   Sat Jul 10 20:38:39 2021 -0700

    Adapt to new Maybe-based property descriptor API
    
    See https://bugzilla.mozilla.org/show_bug.cgi?id=1706404

 gi/gobject.cpp   | 41 +++++++++++++++++++++++++----------------
 gjs/importer.cpp | 12 ++++++++----
 gjs/module.cpp   | 11 ++++++-----
 3 files changed, 39 insertions(+), 25 deletions(-)
---
diff --git a/gi/gobject.cpp b/gi/gobject.cpp
index 4e3a5d5f..57c5dd96 100644
--- a/gi/gobject.cpp
+++ b/gi/gobject.cpp
@@ -60,28 +60,38 @@ static bool jsobj_set_gproperty(JSContext* cx, JS::HandleObject object,
         GjsAutoChar camel_name = gjs_hyphen_to_camel(pspec->name);
 
         if (g_param_spec_get_qdata(pspec, ObjectBase::custom_property_quark())) {
-            JS::Rooted<JS::PropertyDescriptor> jsprop(cx);
+            JS::Rooted<mozilla::Maybe<JS::PropertyDescriptor>> jsprop(cx);
+            JS::RootedObject holder(cx);
 
             // Ensure to call any associated setter method
             if (!g_str_equal(underscore_name.get(), pspec->name)) {
-                if (!JS_GetPropertyDescriptor(cx, object, underscore_name, &jsprop))
+                if (!JS_GetPropertyDescriptor(cx, object, underscore_name,
+                                              &jsprop, &holder)) {
                     return false;
-                if (jsprop.setter() &&
-                    !JS_SetProperty(cx, object, underscore_name, jsvalue))
-                    return false;
-            }
+                }
 
-            if (!g_str_equal(camel_name.get(), pspec->name)) {
-                if (!JS_GetPropertyDescriptor(cx, object, camel_name, &jsprop))
-                    return false;
-                if (jsprop.setter() &&
-                    !JS_SetProperty(cx, object, camel_name, jsvalue))
+                if (jsprop.isSome() && jsprop->setter() &&
+                    !JS_SetProperty(cx, object, underscore_name, jsvalue)) {
                     return false;
+                }
             }
 
-            if (!JS_GetPropertyDescriptor(cx, object, pspec->name, &jsprop))
-                return false;
-            if (jsprop.setter() &&
+           if (!g_str_equal(camel_name.get(), pspec->name)) {
+               if (!JS_GetPropertyDescriptor(cx, object, camel_name, &jsprop,
+                                             &holder)) {
+                   return false;
+               }
+
+               if (jsprop.isSome() && jsprop.value().setter() &&
+                   !JS_SetProperty(cx, object, camel_name, jsvalue)) {
+                   return false;
+               }
+         }
+
+         if (!JS_GetPropertyDescriptor(cx, object, pspec->name, &jsprop,
+                                      &holder))
+              return false;
+         if (jsprop.isSome() && jsprop.value().setter() &&
                 !JS_SetProperty(cx, object, pspec->name, jsvalue))
                 return false;
         }
@@ -137,8 +147,7 @@ static GObject* gjs_object_constructor(
     if (!constructor)
         return nullptr;
 
-    JS::RootedValue v_constructor(cx);
-    v_constructor.setObject(*constructor);
+    JS::RootedValue v_constructor(cx, JS::ObjectValue(*constructor));
 
     JS::RootedObject object(cx);
     if (n_construct_properties) {
diff --git a/gjs/importer.cpp b/gjs/importer.cpp
index f21f6d6d..23947198 100644
--- a/gjs/importer.cpp
+++ b/gjs/importer.cpp
@@ -197,17 +197,21 @@ seal_import(JSContext       *cx,
             JS::HandleId     id,
             const char      *name)
 {
-    JS::Rooted<JS::PropertyDescriptor> descr(cx);
+    JS::Rooted<mozilla::Maybe<JS::PropertyDescriptor>> descr(cx);
 
-    if (!JS_GetOwnPropertyDescriptorById(cx, obj, id, &descr) || !descr.object()) {
+    if (!JS_GetOwnPropertyDescriptorById(cx, obj, id, &descr) ||
+        descr.isNothing()) {
         gjs_debug(GJS_DEBUG_IMPORTER,
                   "Failed to get attributes to seal '%s' in importer",
                   name);
         return false;
     }
 
-    descr.setConfigurable(false);
-    if (!JS_DefinePropertyById(cx, descr.object(), id, descr)) {
+    JS::Rooted<JS::PropertyDescriptor> descr_(cx, descr.value());
+
+    descr_.setConfigurable(false);
+
+    if (!JS_DefinePropertyById(cx, obj, id, descr_)) {
         gjs_debug(GJS_DEBUG_IMPORTER,
                   "Failed to redefine attributes to seal '%s' in importer",
                   name);
diff --git a/gjs/module.cpp b/gjs/module.cpp
index 0e05fce0..68df0a11 100644
--- a/gjs/module.cpp
+++ b/gjs/module.cpp
@@ -175,9 +175,11 @@ class GjsScriptModule {
             return true;  /* nothing imported yet */
         }
 
-        if (!JS_HasPropertyById(cx, lexical, id, resolved))
+        JS::Rooted<mozilla::Maybe<JS::PropertyDescriptor>> maybe_desc(cx);
+        JS::RootedObject holder(cx);
+        if (!JS_GetPropertyDescriptorById(cx, lexical, id, &maybe_desc, &holder))
             return false;
-        if (!*resolved)
+        if (maybe_desc.isNothing())
             return true;
 
         /* The property is present in the lexical environment. This should not
@@ -193,9 +195,8 @@ class GjsScriptModule {
                   "please fix your code anyway.",
                   gjs_debug_id(id).c_str(), m_name);
 
-        JS::Rooted<JS::PropertyDescriptor> desc(cx);
-        return JS_GetPropertyDescriptorById(cx, lexical, id, &desc) &&
-            JS_DefinePropertyById(cx, module, id, desc);
+        JS::Rooted<JS::PropertyDescriptor> desc(cx, maybe_desc.value());
+        return JS_DefinePropertyById(cx, module, id, desc);
     }
 
     GJS_JSAPI_RETURN_CONVENTION


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