Added support for P2573: = delete("reason");.

Author: andreasfertig

CodeGenerator.cpp

@@ -3184,13 +3184,6 @@ void CodeGenerator::InsertCXXMethodHeader(const CXXMethodDecl* stmt, OutputForma
 
     InsertTemplateGuardBegin(stmt);
     InsertFunctionNameWithReturnType(*stmt, cxxInheritedCtorDecl);
-
-    if(stmt->isDeleted()) {
-        mOutputFormatHelper.AppendNewLine(kwSpaceEqualsDelete);
-
-    } else if(stmt->isDefaulted()) {
-        mOutputFormatHelper.AppendNewLine(kwSpaceEqualsDefault);
-    }
 }
 //-----------------------------------------------------------------------------
 
@@ -4993,6 +4986,18 @@ void CodeGenerator::InsertFunctionNameWithReturnType(const FunctionDecl&       d
 #endif
         mOutputFormatHelper.Append(" = 0"sv);
     }
+
+    if(decl.isDeleted()) {
+        mOutputFormatHelper.Append(kwSpaceEqualsDelete);
+        if(auto* delInfo = decl.getDefalutedOrDeletedInfo()) {
+            WrapInParens([&]() { InsertArg(delInfo->getDeletedMessage()); }, AddSpaceAtTheEnd::No);
+        } else {
+            mOutputFormatHelper.AppendSemiNewLine();
+        }
+
+    } else if(decl.isDefaulted()) {
+        mOutputFormatHelper.AppendNewLine(kwSpaceEqualsDefault);
+    }
 }
 //-----------------------------------------------------------------------------
 

InsightsStaticStrings.h

@@ -62,7 +62,7 @@ using namespace std::literals;
 #define KW_CO_AWAIT "co_await"
 #define KW_TYPENAME "typename"
 #define KW_EQUALS_DEFAULT "= default;"
-#define KW_EQUALS_DELETE "= delete;"
+#define KW_EQUALS_DELETE "= delete"
 #define KW_INTERNAL_THIS "__this"
 #define KW_ELIPSIS "..."
 #define KW_FALSE "false"

tests/p2573Test.cpp

@@ -0,0 +1,4 @@
+// cmdline:-std=c++26
+
+void newapi();
+void oldapi() = delete("This old API is outdated and already been removed. Please use newapi() instead.");

tests/p2573Test.expect

@@ -0,0 +1,2 @@
+void newapi();
+inline void oldapi() = delete("This old API is outdated and already been removed. Please use newapi() instead.");