Fixes #12327.
#![allow(unused_imports)]
use self::HasTestSignature::*;
+use std::iter;
use std::slice;
use std::mem;
use std::vec;
use codemap;
use diagnostic;
use config;
+use entry::{self, EntryPointType};
use ext::base::ExtCtxt;
use ext::build::AstBuilder;
use ext::expand::ExpansionConfig;
// the one we're going to add. Only if compiling an executable.
mod_folded.items = mem::replace(&mut mod_folded.items, vec![]).move_map(|item| {
- item.map(|ast::Item {id, ident, attrs, node, vis, span}| {
- ast::Item {
- id: id,
- ident: ident,
- attrs: attrs.into_iter().filter_map(|attr| {
- if !attr.check_name("main") {
- Some(attr)
- } else {
- None
+ match entry::entry_point_type(&item, self.cx.path.len() + 1) {
+ EntryPointType::MainNamed |
+ EntryPointType::MainAttr |
+ EntryPointType::Start =>
+ item.map(|ast::Item {id, ident, attrs, node, vis, span}| {
+ let allow_str = InternedString::new("allow");
+ let dead_code_str = InternedString::new("dead_code");
+ let allow_dead_code_item =
+ attr::mk_list_item(allow_str,
+ vec![attr::mk_word_item(dead_code_str)]);
+ let allow_dead_code = attr::mk_attr_outer(attr::mk_attr_id(),
+ allow_dead_code_item);
+
+ ast::Item {
+ id: id,
+ ident: ident,
+ attrs: attrs.into_iter().filter_map(|attr| {
+ if !attr.check_name("main") {
+ Some(attr)
+ } else {
+ None
+ }
+ })
+ .chain(iter::once(allow_dead_code))
+ .collect(),
+ node: node,
+ vis: vis,
+ span: span
}
- }).collect(),
- node: node,
- vis: vis,
- span: span
- }
- })
+ }),
+ EntryPointType::None |
+ EntryPointType::OtherMain => item,
+ }
});
if !tests.is_empty() || !tested_submods.is_empty() {
--- /dev/null
+// Copyright 2015 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 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// compile-flags: --test
+
+#![deny(dead_code)]
+
+fn dead() {} //~ error: function is never used: `dead`
+
+fn main() {}
--- /dev/null
+// Copyright 2015 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 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// compile-flags: --test
+
+#![feature(main)]
+
+#![deny(dead_code)]
+
+#[main]
+fn foo() { panic!(); }
--- /dev/null
+// Copyright 2015 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 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// compile-flags: --test
+
+#![deny(dead_code)]
+
+fn main() { panic!(); }