1 files changed, 122 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/go/gofrontend/ast-dump.h b/gcc-4.9/gcc/go/gofrontend/ast-dump.h
new file mode 100644
index 000000000..55c93693f
--- /dev/null
+++ b/gcc-4.9/gcc/go/gofrontend/ast-dump.h
@@ -0,0 +1,122 @@
+// ast-dump.h -- AST debug dump.    -*- 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_AST_DUMP_H
+#define GO_AST_DUMP_H
+
+#include "string-dump.h"
+
+class Expression;
+class Expression_list;
+class Named_object;
+class Statement;
+class Gogo;
+
+// This class implements fgo-dump-ast. the
+// Abstract syntax tree dump of the Go program.
+
+class Ast_dump_context : public String_dump
+{
+ public:
+  Ast_dump_context(std::ostream* out = NULL, bool dump_subblocks = true);
+
+  // Initialize the dump context.
+  void
+  dump(Gogo*, const char* basename);
+
+  // Dump spaces to dumpfile as indentation.
+  void
+  print_indent();
+
+  // Increase current indentation for print_indent().
+  void
+  indent()
+  { ++this->indent_;}
+
+  // Decrease current indentation for print_indent().
+  void
+  unindent()
+  { --this->indent_;}
+
+  // Whether subblocks should be dumped or not.
+  bool
+  dump_subblocks()
+  { return this->dump_subblocks_; }
+
+  // Get dump output stream.
+  std::ostream&
+  ostream()
+  { return *this->ostream_;}
+
+  // Dump a Block to dump file.
+  void
+  dump_block(Block*);
+
+  // Dump a type to dump file.
+  void
+  dump_type(const Type*);
+
+  // Dump an expression to dump file.
+  void
+  dump_expression(const Expression*);
+
+  // Dump an expression list to dump file.
+  void
+  dump_expression_list(const Expression_list*, bool as_pairs = false);
+
+  // Dump a typed identifier to dump file.
+  void
+  dump_typed_identifier(const  Typed_identifier*);
+
+  // Dump a typed identifier list to dump file.
+  void
+  dump_typed_identifier_list(const Typed_identifier_list*);
+
+  // Dump temporary variable name to dump file.
+  void
+  dump_temp_variable_name(const Statement*);
+
+  // Dump unamed lable name to dump file.
+  void
+  dump_label_name(const Unnamed_label*);
+
+  // Dump operator symbol to dump file.
+  void
+  dump_operator(Operator);
+
+  // Implementation of String_dump interface.
+  void
+  write_c_string(const char*);
+
+  // Implements the String_dump interface.
+  void
+  write_string(const std::string& s);
+
+  // Dump statement to stream.
+  static void
+  dump_to_stream(const Statement*, std::ostream*);
+
+  // Dump expression to stream.
+  static void
+  dump_to_stream(const Expression* expr, std::ostream* out);
+
+ private:
+   // Current indent level.
+  int indent_;
+
+  // Indentation offset.
+  static const int offset_;
+
+  // Whether subblocks of composite statements should be dumped or not.
+  bool dump_subblocks_;
+
+  // Stream on output dump file.
+  std::ostream* ostream_;
+
+  Gogo* gogo_;
+};
+
+#endif  // GO_AST_DUMP_H