Imported Upstream version 2011.04.13upstream/2011.04.13

5 files changed, 98 insertions, 0 deletions

diff --git a/misc/swig/callback/Makefile b/misc/swig/callback/Makefile
new file mode 100644
index 000000000..fde0d107b
--- /dev/null
+++ b/misc/swig/callback/Makefile
@@ -0,0 +1,17 @@
+# Copyright 2011 The Go Authors.  All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+include ../../../src/Make.inc
+
+TARG=swig/callback
+SWIGFILES=\
+	callback.swigcxx
+
+CLEANFILES+=run
+
+include ../../../src/Make.pkg
+
+%: install %.go
+	$(GC) $*.go
+	$(LD) $(SWIG_RPATH) -o $@ $*.$O
diff --git a/misc/swig/callback/callback.h b/misc/swig/callback/callback.h
new file mode 100644
index 000000000..80232a8b3
--- /dev/null
+++ b/misc/swig/callback/callback.h
@@ -0,0 +1,24 @@
+// Copyright 2011 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+class Callback {
+public:
+	virtual ~Callback() { }
+	virtual std::string run() { return "Callback::run"; }
+};
+
+class Caller {
+private:
+	Callback *callback_;
+public:
+	Caller(): callback_(0) { }
+	~Caller() { delCallback(); }
+	void delCallback() { delete callback_; callback_ = 0; }
+	void setCallback(Callback *cb) { delCallback(); callback_ = cb; }
+	std::string call() {
+		if (callback_ != 0)
+			return callback_->run();
+		return "";
+	}
+};
diff --git a/misc/swig/callback/callback.swigcxx b/misc/swig/callback/callback.swigcxx
new file mode 100644
index 000000000..0c97ef101
--- /dev/null
+++ b/misc/swig/callback/callback.swigcxx
@@ -0,0 +1,18 @@
+/* Copyright 2011 The Go Authors.  All rights reserved.
+   Use of this source code is governed by a BSD-style
+   license that can be found in the LICENSE file.  */
+
+/* An example of writing a C++ virtual function in Go.  */
+
+%module(directors="1") callback
+
+%{
+#include <string>
+#include "callback.h"
+%}
+
+%include "std_string.i"
+
+%feature("director");
+
+%include "callback.h"
diff --git a/misc/swig/callback/run b/misc/swig/callback/run
new file mode 100755
index 000000000..de150ed05
--- /dev/null
+++ b/misc/swig/callback/run
diff --git a/misc/swig/callback/run.go b/misc/swig/callback/run.go
new file mode 100644
index 000000000..a76e636cb
--- /dev/null
+++ b/misc/swig/callback/run.go
@@ -0,0 +1,39 @@
+// Copyright 2011 The Go Authors.  All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import (
+	"swig/callback"
+	"fmt"
+)
+
+type GoCallback struct{}
+
+func (p *GoCallback) Run() string {
+	return "GoCallback.Run"
+}
+
+func main() {
+	c := callback.NewCaller()
+	cb := callback.NewCallback()
+
+	c.SetCallback(cb)
+	s := c.Call()
+	fmt.Println(s)
+	if s != "Callback::run" {
+		panic(s)
+	}
+	c.DelCallback()
+
+	cb = callback.NewDirectorCallback(&GoCallback{})
+	c.SetCallback(cb)
+	s = c.Call()
+	fmt.Println(s)
+	if s != "GoCallback.Run" {
+		panic(s)
+	}
+	c.DelCallback()
+	callback.DeleteDirectorCallback(cb)
+}