diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs index 55c1af44cab85..a0acfa3ab4a2b 100644 --- a/src/libsyntax/print/pprust.rs +++ b/src/libsyntax/print/pprust.rs @@ -752,7 +752,8 @@ pub trait PrintState<'a> { } try!(self.maybe_print_comment(attr.span.lo)); if attr.node.is_sugared_doc { - word(self.writer(), &attr.value_str().unwrap()) + try!(word(self.writer(), &attr.value_str().unwrap())); + hardbreak(self.writer()) } else { match attr.node.style { ast::AttrStyle::Inner => try!(word(self.writer(), "#![")), diff --git a/src/test/pretty/top-level-doc-comments.rs b/src/test/pretty/top-level-doc-comments.rs new file mode 100644 index 0000000000000..59c7f0fe0de84 --- /dev/null +++ b/src/test/pretty/top-level-doc-comments.rs @@ -0,0 +1,20 @@ +/// Some doc comment. +struct X; + +// ignore-license + +// Copyright 2012-2013 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// pp-exact + +// Test that rust can properly pretty print a doc comment if it's the first line in a file. some + +fn main() { let x = X; }