1 files changed, 39 insertions, 0 deletions
diff --git a/usr/gri/pretty/ast.go b/usr/gri/pretty/ast.go
new file mode 100644
index 000000000..311b91f51
--- /dev/null
+++ b/usr/gri/pretty/ast.go
@@ -0,0 +1,39 @@
+// Copyright 2009 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 AST;
+
+
+export type Expr interface {
+       pos() int;
+       print();
+}
+
+
+export type Stat interface {
+       pos() int;
+       print();
+}
+
+
+// ---------------------------------------------------------------------
+// Concrete nodes
+
+export type Ident struct {
+       pos_ int;
+       val_ string;
+}
+
+
+func (p *Ident) pos() int {
+     return p.pos_;
+}
+
+
+func (p *Ident) print() {
+     print("x");  // TODO fix this
+}
+
+
+// TODO: complete this