Rollup merge of #40296 - topecongiro:add-missing-tests, r=alexcrichton

Add tests for issues with the 'E-needtest' label.

This PR adds tests for the following issues:
This commit is contained in:
Ariel Ben-Yehuda 2017-03-08 20:54:01 +02:00 committed by GitHub
commit 37faa60d8e
5 changed files with 130 additions and 0 deletions

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// Copyright 2017 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 llvm generates `memcpy` for moving a value
// inside a function and moving an argument.
struct Foo {
x: Vec<i32>,
}
#[inline(never)]
#[no_mangle]
// CHECK: memcpy
fn interior(x: Vec<i32>) -> Vec<i32> {
let Foo { x } = Foo { x: x };
x
}
#[inline(never)]
#[no_mangle]
// CHECK: memcpy
fn exterior(x: Vec<i32>) -> Vec<i32> {
x
}
fn main() {
let x = interior(Vec::new());
println!("{:?}", x);
let x = exterior(Vec::new());
println!("{:?}", x);
}

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// Copyright 2017 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 name clashes between the method in an impl for the type
// and the method in the trait when both are in the same scope.
trait T {
fn foo(&self);
}
impl<'a> T + 'a {
fn foo(&self) {}
}
impl T for i32 {
fn foo(&self) {}
}
fn main() {
let x: &T = &0i32;
x.foo(); //~ ERROR multiple applicable items in scope [E0034]
}

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// Copyright 2017 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.
struct Table {
rows: [[String]],
//~^ ERROR the trait bound `[std::string::String]: std::marker::Sized` is not satisfied [E0277]
}
fn f(table: &Table) -> &[String] {
&table.rows[0]
}
fn main() {}

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// Copyright 2017 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 methods in trait impls should override default methods.
trait T {
fn foo(&self) -> i32 { 0 }
}
impl<'a> T + 'a {
fn foo(&self) -> i32 { 1 }
}
fn main() {}

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// Copyright 2017 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 we do not ICE when pattern matching an array against a slice.
#![feature(slice_patterns)]
fn main() {
match "foo".as_bytes() {
b"food" => (),
&[b'f', ..] => (),
_ => ()
}
}