[vala/0.50] codegen: Always use G_TYPE_INSTANCE_GET_CLASS/INTERFACE for external symbols

[Rico Tzschichholz <ricotz src gnome org>]

commit 68c16cc4a8e372b35d2977f07e24858b4b1ce6c3
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Jan 30 21:17:25 2021 +0100

    codegen: Always use G_TYPE_INSTANCE_GET_CLASS/INTERFACE for external symbols
    
    and get_ccode_type_get_function() for SourceFileType.SOURCE symbols.

 codegen/valaccodememberaccessmodule.vala | 24 ++++++++++++++++++++----
 codegen/valaccodemethodcallmodule.vala   | 22 ++++++++++++++++++----
 2 files changed, 38 insertions(+), 8 deletions(-)
---
diff --git a/codegen/valaccodememberaccessmodule.vala b/codegen/valaccodememberaccessmodule.vala
index 0e995d3c9..a3d8ef0f8 100644
--- a/codegen/valaccodememberaccessmodule.vala
+++ b/codegen/valaccodememberaccessmodule.vala
@@ -68,8 +68,16 @@ public abstract class Vala.CCodeMemberAccessModule : CCodeControlFlowModule {
                                if (!method_has_wrapper (m.base_method)) {
                                        var base_class = (Class) m.base_method.parent_symbol;
                                        if (!base_class.is_compact) {
-                                               var vclass = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_class)));
-                                               vclass.add_argument (pub_inst);
+                                               CCodeFunctionCall vclass;
+                                               if (base_class.external_package) {
+                                                       vclass = new CCodeFunctionCall (new CCodeIdentifier 
("G_TYPE_INSTANCE_GET_CLASS"));
+                                                       vclass.add_argument (pub_inst);
+                                                       vclass.add_argument (new CCodeIdentifier 
(get_ccode_type_id (base_class)));
+                                                       vclass.add_argument (new CCodeIdentifier 
(get_ccode_type_name (base_class)));
+                                               } else {
+                                                       vclass = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_class)));
+                                                       vclass.add_argument (pub_inst);
+                                               }
                                                set_cvalue (expr, new CCodeMemberAccess.pointer (vclass, 
get_ccode_vfunc_name (m)));
                                        } else {
                                                set_cvalue (expr, new CCodeMemberAccess.pointer (pub_inst, 
get_ccode_vfunc_name (m)));
@@ -80,8 +88,16 @@ public abstract class Vala.CCodeMemberAccessModule : CCodeControlFlowModule {
                        } else if (m.base_interface_method != null) {
                                if (m.base_interface_method.get_attribute ("NoWrapper") != null) {
                                        var base_iface = (Interface) m.base_interface_method.parent_symbol;
-                                       var vclass = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_iface)));
-                                       vclass.add_argument (pub_inst);
+                                       CCodeFunctionCall vclass;
+                                       if (base_iface.external_package) {
+                                               vclass = new CCodeFunctionCall (new CCodeIdentifier 
("G_TYPE_INSTANCE_GET_INTERFACE"));
+                                               vclass.add_argument (pub_inst);
+                                               vclass.add_argument (new CCodeIdentifier (get_ccode_type_id 
(base_iface)));
+                                               vclass.add_argument (new CCodeIdentifier (get_ccode_type_name 
(base_iface)));
+                                       } else {
+                                               vclass = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_iface)));
+                                               vclass.add_argument (pub_inst);
+                                       }
                                        set_cvalue (expr, new CCodeMemberAccess.pointer (vclass, 
get_ccode_vfunc_name (m)));
                                } else {
                                        set_cvalue (expr, new CCodeIdentifier (get_ccode_name 
(m.base_interface_method)));
diff --git a/codegen/valaccodemethodcallmodule.vala b/codegen/valaccodemethodcallmodule.vala
index 358a9896b..48d11eb67 100644
--- a/codegen/valaccodemethodcallmodule.vala
+++ b/codegen/valaccodemethodcallmodule.vala
@@ -119,12 +119,26 @@ public class Vala.CCodeMethodCallModule : CCodeAssignmentModule {
                                CCodeFunctionCall? vcast = null;
                                if (m.parent_symbol is Class) {
                                        unowned Class base_class = (Class) m.parent_symbol;
-                                       vcast = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_class)));
-                                       vcast.add_argument (pub_inst);
+                                       if (base_class.external_package) {
+                                               vcast = new CCodeFunctionCall (new CCodeIdentifier 
("G_TYPE_INSTANCE_GET_CLASS"));
+                                               vcast.add_argument (pub_inst);
+                                               vcast.add_argument (new CCodeIdentifier (get_ccode_type_id 
(base_class)));
+                                               vcast.add_argument (new CCodeIdentifier (get_ccode_type_name 
(base_class)));
+                                       } else {
+                                               vcast = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_class)));
+                                               vcast.add_argument (pub_inst);
+                                       }
                                } else if (m.parent_symbol is Interface) {
                                        unowned Interface base_iface = (Interface) m.parent_symbol;
-                                       vcast = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_iface)));
-                                       vcast.add_argument (pub_inst);
+                                       if (base_iface.external_package) {
+                                               vcast = new CCodeFunctionCall (new CCodeIdentifier 
("G_TYPE_INSTANCE_GET_INTERFACE"));
+                                               vcast.add_argument (pub_inst);
+                                               vcast.add_argument (new CCodeIdentifier (get_ccode_type_id 
(base_iface)));
+                                               vcast.add_argument (new CCodeIdentifier (get_ccode_type_name 
(base_iface)));
+                                       } else {
+                                               vcast = new CCodeFunctionCall (new CCodeIdentifier 
(get_ccode_type_get_function (base_iface)));
+                                               vcast.add_argument (pub_inst);
+                                       }
                                }
                                if (vcast != null) {
                                        async_call.call = new CCodeMemberAccess.pointer (vcast, 
get_ccode_vfunc_name (m));