Add C++ codegen support for global structs/enums/bitmaps. (#34562)

Fixes app-common and chip-tool.

examples/chip-tool/templates/ComplexArgumentParser-src.zapt

@@ -5,6 +5,8 @@
 {{#zcl_structs}}
 {{#if has_more_than_one_cluster}}
 {{> struct_parser_impl namespace="detail"}}
+{{else if has_no_clusters}}
+{{> struct_parser_impl namespace="Globals"}}
 {{/if}}
 {{/zcl_structs}}
 

examples/chip-tool/templates/ComplexArgumentParser.zapt

@@ -8,6 +8,8 @@
 {{#zcl_structs}}
 {{#if has_more_than_one_cluster}}
 {{> struct_parser_decl namespace="detail"}}
+{{else if has_no_clusters}}
+{{> struct_parser_decl namespace="Globals"}}
 {{/if}}
 {{/zcl_structs}}
 

examples/chip-tool/templates/logging/DataModelLogger-src.zapt

@@ -7,6 +7,8 @@ using namespace chip::app::Clusters;
 {{#zcl_structs}}
 {{#if has_more_than_one_cluster}}
 {{> struct_logger_impl namespace="detail"}}
+{{else if has_no_clusters}}
+{{> struct_logger_impl namespace="Globals"}}
 {{/if}}
 {{/zcl_structs}}
 

examples/chip-tool/templates/logging/DataModelLogger.zapt

@@ -6,6 +6,8 @@
 {{#zcl_structs}}
 {{#if has_more_than_one_cluster}}
 {{> struct_logger_decl namespace="detail"}}
+{{else if has_no_clusters}}
+{{> struct_logger_decl namespace="Globals"}}
 {{/if}}
 {{/zcl_structs}}
 

src/app/common/templates/templates.json

@@ -25,6 +25,10 @@
             "name": "cluster_enums_enum",
             "path": "../../zap-templates/partials/cluster-enums-enum.zapt"
         },
+        {
+            "name": "cluster_enums_ensure_known_value",
+            "path": "../../zap-templates/partials/cluster-enums-ensure-known-value.zapt"
+        },
         {
             "name": "cluster_objects_field_init",
             "path": "../../zap-templates/partials/cluster-objects-field-init.zapt"

src/app/zap-templates/partials/cluster-enums-ensure-known-value.zapt

@@ -0,0 +1,14 @@
+{{#unless (isInConfigList (concat ns "::" label) "EnumsNotUsedAsTypeInXML")}}
+static auto __attribute__((unused)) EnsureKnownEnumValue({{ns}}::{{asType label}} val)
+{
+    using EnumType = {{ns}}::{{asType label}};
+    switch (val) {
+    {{#zcl_enum_items}}
+    case EnumType::k{{asUpperCamelCase label}}:
+    {{/zcl_enum_items}}
+        return val;
+    default:
+        return EnumType::kUnknownEnumValue;
+    }
+}
+{{/unless}}

src/app/zap-templates/templates/app/cluster-enums-check.zapt

@@ -9,40 +9,17 @@ namespace app {
 namespace Clusters {
 {{#zcl_enums}}
 {{#if has_more_than_one_cluster}}
-{{#unless (isInConfigList (concat "::" label) "EnumsNotUsedAsTypeInXML")}}
-static auto __attribute__((unused)) EnsureKnownEnumValue(detail::{{asType label}} val)
-{
-    using EnumType = detail::{{asType label}};
-    switch (val) {
-    {{#zcl_enum_items}}
-    case EnumType::k{{asUpperCamelCase label}}:
-    {{/zcl_enum_items}}
-        return val;
-    default:
-        return EnumType::kUnknownEnumValue;
-    }
-}
-{{/unless}}
+{{> cluster_enums_ensure_known_value ns="detail"}}
+{{else if has_no_clusters}}
+{{> cluster_enums_ensure_known_value ns="Globals"}}
+
 {{/if}}
 {{/zcl_enums}}
 
 {{#zcl_clusters}}
 {{#zcl_enums}}
 {{#unless has_more_than_one_cluster}}
-{{#unless (isInConfigList (concat (asUpperCamelCase ../name) "::" label) "EnumsNotUsedAsTypeInXML")}}
-static auto __attribute__((unused)) EnsureKnownEnumValue({{asUpperCamelCase ../name}}::{{asType label}} val)
-{
-    using EnumType = {{asUpperCamelCase ../name}}::{{asType label}};
-    switch (val) {
-    {{#zcl_enum_items}}
-    case EnumType::k{{asUpperCamelCase label}}:
-    {{/zcl_enum_items}}
-        return val;
-    default:
-        return EnumType::kUnknownEnumValue;
-    }
-}
-{{/unless}}
+{{> cluster_enums_ensure_known_value ns=(asUpperCamelCase ../name)}}
 {{/unless}}
 {{/zcl_enums}}
 

src/app/zap-templates/templates/app/cluster-enums.zapt

@@ -37,6 +37,37 @@ k{{asUpperCamelCase label}} = {{asHex mask}},
 
 } // namespace detail
 
+namespace Globals {
+// Global enums.
+{{#zcl_enums}}
+
+{{#if has_no_clusters}}
+
+{{> cluster_enums_enum ns=""}}
+
+{{/if}}
+{{/zcl_enums}}
+
+// Global bitmaps.
+{{#zcl_bitmaps}}
+
+{{#if has_no_clusters}}
+{{! Work around https://github.com/project-chip/zap/issues/1370 and manually filter out built-in bitmap types. }}
+{{#if_is_atomic label}}
+{{else}}
+
+// Bitmap for {{label}}
+enum class {{asType label}} : {{asUnderlyingZclType name}} {
+{{#zcl_bitmap_items}}
+k{{asUpperCamelCase label}} = {{asHex mask}},
+{{/zcl_bitmap_items}}
+};
+
+{{/if_is_atomic}}
+{{/if}}
+{{/zcl_bitmaps}}
+
+} // namespace Globals
 
 {{#zcl_clusters}}
 namespace {{asUpperCamelCase name}} {

src/app/zap-templates/templates/app/cluster-objects-src.zapt

@@ -64,6 +64,18 @@ namespace Structs {
 } // namespace Structs
 } // namespace detail
 
+namespace Globals {
+// Global structs
+namespace Structs {
+{{#zcl_structs}}
+{{#if has_no_clusters}}
+{{> cluster_objects_struct header=false}}
+
+{{/if}}
+{{/zcl_structs}}
+} // namespace Structs
+} // namespace Globals
+
 {{#zcl_clusters}}
 namespace {{asUpperCamelCase name}} {
 {{#zcl_structs}}

src/app/zap-templates/templates/app/cluster-objects.zapt

@@ -35,6 +35,18 @@ namespace Structs {
 } // namespace detail
 
 namespace Globals {
+
+// Global structs.
+namespace Structs {
+
+{{#zcl_structs}}
+{{#if has_no_clusters}}
+{{> cluster_objects_struct header=true}}
+
+{{/if}}
+{{/zcl_structs}}
+} // namespace Structs
+
 namespace Attributes {
 {{#zcl_attributes_server}}
 {{#unless clusterRef}}