Fix #288: Missing __u/int128 support

jacob-carlborg · Nov 13, 2023 · a7212f8 · a7212f8
1 parent d96406b
commit a7212f8
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diff --git a/changelog.md b/changelog.md
@@ -9,6 +9,7 @@
 * Add support for FreeBSD
 * Drop support for Windows 32 bit
 * [Issue 287](https://github.com/jacob-carlborg/dstep/issues/287): Add support for adding public imports
+* [Issue 288](https://github.com/jacob-carlborg/dstep/issues/288): Missing `__u/int128` support
 
 ### Bugs Fixed
 

diff --git a/dstep/translator/Type.d b/dstep/translator/Type.d
@@ -201,7 +201,11 @@ package string reduceAlias(Type type)
         tuple("u8", CXTypeKind.uChar): "ubyte",
         tuple("u16", CXTypeKind.uShort): "ushort",
         tuple("u32", CXTypeKind.uInt): "uint",
-        tuple("u64", CXTypeKind.uLongLong): "ulong"
+        tuple("u64", CXTypeKind.uLongLong): "ulong",
+        tuple("__int128_t", CXTypeKind.int128): "Cent",
+
+        // There's no unsigned 128 bit integer in D. Use signed instead.
+        tuple("__uint128_t", CXTypeKind.uInt128): "Cent"
     ];
 
     auto canonical = type.canonical;
@@ -580,7 +584,11 @@ string translateType (Context context, CXTypeKind kind, bool rewriteIdToObjcObje
                 return "c_ulong";
 
             case uLongLong: return "ulong";
-            case uInt128: return "<unimplemented>";
+            case uInt128:
+                context.includeHandler.addImport("core.int128");
+                // There's no unsigned 128 bit integer in D. Use signed instead.
+                return "Cent";
+
             case charS: return "char";
             case sChar: return "byte";
             case wChar: return "wchar";
@@ -592,7 +600,11 @@ string translateType (Context context, CXTypeKind kind, bool rewriteIdToObjcObje
                 return "c_long";
 
             case longLong: return "long";
-            case int128: return "<unimplemented>";
+
+            case int128:
+                context.includeHandler.addImport("core.int128");
+                return "Cent";
+
             case float_: return "float";
             case double_: return "double";
             case longDouble: return "real";

diff --git a/tests/unit/issues/issue288_int128.d b/tests/unit/issues/issue288_int128.d
@@ -0,0 +1,33 @@
+/**
+ * Copyright: Copyright (c) 2023 Jacob Carlborg. All rights reserved.
+ * Authors: Jacob Carlborg
+ * Version: Initial created: November 10, 2023
+ * License: $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost Software License 1.0)
+ */
+
+import Common;
+import dstep.translator.Options;
+
+unittest
+{
+    assertTranslates(
+q"C
+__int128 a();
+unsigned __int128 b();
+__int128_t c();
+__uint128_t d();
+typedef __uint128_t tb_uint128_t;
+C",
+
+q"D
+import core.int128;
+
+extern (C):
+
+Cent a ();
+Cent b ();
+Cent c ();
+Cent d ();
+alias tb_uint128_t = Cent;
+D", Options(reduceAliases: true));
+}