rust/src/test/compile-fail/no-implicit-prelude-nested.rs
Vlad Ureche 88af8fa0b1 Show candidates for names not in scope
This commit adds functionality that allows the name resolution pass
to search for entities (traits/types/enums/structs) by name, in
order to show recommendations along with the errors.

For now, only E0405 and E0412 have suggestions attached, as per the
request in bug #21221, but it's likely other errors can also benefit
from the ability to generate suggestions.
2016-02-19 01:10:36 +01:00

65 lines
2.0 KiB
Rust

// Copyright 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 <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.
// Test that things from the prelude aren't in scope. Use many of them
// so that renaming some things won't magically make this test fail
// for the wrong reason (e.g. if `Add` changes to `Addition`, and
// `no_implicit_prelude` stops working, then the `impl Add` will still
// fail with the same error message).
#[no_implicit_prelude]
mod foo {
mod baz {
struct Test;
impl Add for Test {} //~ ERROR: not in scope
impl Clone for Test {} //~ ERROR: not in scope
impl Iterator for Test {} //~ ERROR: not in scope
impl ToString for Test {} //~ ERROR: not in scope
impl Writer for Test {} //~ ERROR: not in scope
fn foo() {
drop(2) //~ ERROR: unresolved name
}
}
struct Test;
impl Add for Test {} //~ ERROR: not in scope
impl Clone for Test {} //~ ERROR: not in scope
impl Iterator for Test {} //~ ERROR: not in scope
impl ToString for Test {} //~ ERROR: not in scope
impl Writer for Test {} //~ ERROR: not in scope
fn foo() {
drop(2) //~ ERROR: unresolved name
}
}
fn qux() {
#[no_implicit_prelude]
mod qux_inner {
struct Test;
impl Add for Test {} //~ ERROR: not in scope
impl Clone for Test {} //~ ERROR: not in scope
impl Iterator for Test {} //~ ERROR: not in scope
impl ToString for Test {} //~ ERROR: not in scope
impl Writer for Test {} //~ ERROR: not in scope
fn foo() {
drop(2) //~ ERROR: unresolved name
}
}
}
fn main() {
// these should work fine
drop(2)
}