add test for catching D exceptions from C++ on Win32

Author: rainers

Makefile

@@ -134,6 +134,8 @@ endif
 
 ifeq ($(OS),win32)
 DISABLED_FAIL_TESTS += fail13939
+else
+DISABLED_TESTS += ldc_cpp_eh
 endif
 
 ####

d_do_test.d

@@ -373,7 +373,7 @@ bool collectExtraSources (in string input_dir, in string output_dir, in string[]
         {
             if (msc)
             {
-                command ~= ` /c /nologo `~curSrc~` /Fo`~curObj;
+                command ~= ` /c /nologo /EHsc `~curSrc~` /Fo`~curObj;
             }
             else if (envData.os == "win32")
             {

runnable/extra-files/dexcept.h

@@ -0,0 +1,63 @@
+// D exceptions to by caught by C++
+
+#pragma once
+
+namespace D {
+
+struct string
+{
+    size_t length;
+    const char* ptr;
+};
+
+class Object;
+
+extern "C" {
+    string _d_toString(Object* o);
+}
+
+class Object
+{
+    void* __monitor;
+
+    virtual void _classinfo_data() = 0;
+
+protected:
+    // don't call directly, ABI mismatch
+    virtual string _toString();
+    virtual size_t _toHash();
+    virtual int _opCmp(Object* o);
+    virtual bool _opEquals(Object* o);
+
+public:
+    string toString() { return _d_toString(this); }
+};
+
+class Throwable : public Object
+{
+public:
+    string      msg;    /// A message describing the error.
+
+    /**
+     * The _file name and line number of the D source code corresponding with
+     * where the error was thrown from.
+     */
+    string      file;
+    size_t      line;   /// ditto
+
+    void*       info;
+    Throwable*  next;
+
+    virtual string _toString();
+};
+
+class Exception : public Throwable
+{
+};
+
+class Error : public Throwable
+{
+    Throwable* bypassedException;
+};
+
+} // namespace D

runnable/extra-files/ldc_cpp_eh1.cpp

@@ -0,0 +1,24 @@
+#include "dexcept.h"
+#include <string.h>
+#include <assert.h>
+
+void throwException();
+
+bool test_eh()
+{
+	try
+	{
+		throwException();
+	}
+	catch (D::Exception* excpt)
+	{
+		D::string s = excpt->toString();
+		assert(memcmp(s.ptr + s.length - 9, "Hello C++", 9) == 0);
+		return true;
+	}
+	catch(...)
+	{
+		assert(false);
+	}
+	return false;
+}

runnable/ldc_cpp_eh.d

@@ -0,0 +1,15 @@
+// EXTRA_CPP_SOURCES: ldc_cpp_eh1.cpp 
+
+extern(C++) bool test_eh();
+
+extern(C++)
+void throwException()
+{
+	throw new Exception("Hello C++");
+}
+
+void main()
+{
+	bool rc = test_eh();
+	assert(rc);
+}