gccgo...

gccgo: 	fixes to ast-dump, refactoring of export and ast-dump
        to implement a common interface for writing basic
        type literals and added flags for optimization.

	* lang.opt: Add fgo-optimize-.
	* go-lang.c (go_langhook_handle_option): Handle OPT_fgo_optimize.
	* go-c.h (go_enable_optimize): Declare.
	* Make-lang.in (GO_OBJS): Add go/go-optimize.o.
	(GO_EXPORT_H): Define.
	(GO_IMPORT_H): Add $(GO_EXPORT_H).
	(GO_AST_DUMP_H): Define.
	(go/ast-dump.o, go/statements.o): Use GO_AST_DUMP_H.
	(go/export.o, go/gogo.o, go/import.o): Use GO_EXPORT_H.
	(go/types.o): Likewise.
	(go/expressions.o): Use GO_AST_DUMP_H and GO_EXPORT_H.
	(go/go-optimize.o): New target.

From-SVN: r178046

1 files changed, 25 insertions, 0 deletions

diff --git a/gcc/go/gofrontend/string-dump.h b/gcc/go/gofrontend/string-dump.h
new file mode 100644
index 0000000..fe4807d
--- /dev/null
+++ b/gcc/go/gofrontend/string-dump.h
@@ -0,0 +1,25 @@
+// string-dump.h -- Abstract base class for dumping strings.    -*- C++ -*-
+
+// 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.
+
+#ifndef GO_STRING_DUMP_H
+#define GO_STRING_DUMP_H
+
+// This abstract class provides an interface strings for whatever purpose.
+// Used for example for exporting and dumping objects.
+
+class String_dump 
+{
+ public:
+  // Write a string. Implements the String_dump interface.
+  virtual void
+  write_string(const std::string& s) = 0;
+
+  // Implementors should override this member, to dump a formatted c string.
+  virtual void
+  write_c_string(const char*) = 0;
+};
+
+#endif  // GO_STRING_DUMP_H