From 9340fd5ce0d7bd0f1bbfbda73944920bcc1364eb Mon Sep 17 00:00:00 2001 From: Michael Sullivan Date: Fri, 28 Jun 2013 17:47:44 -0700 Subject: [PATCH] Add tests for some default method things. --- src/test/compile-fail/impl-bounds-checking.rs | 24 ++++++++++ src/test/run-pass/bug-7183-generics.rs | 45 +++++++++++++++++++ .../run-pass/trait-with-bounds-default.rs | 41 +++++++++++++++++ 3 files changed, 110 insertions(+) create mode 100644 src/test/compile-fail/impl-bounds-checking.rs create mode 100644 src/test/run-pass/bug-7183-generics.rs create mode 100644 src/test/run-pass/trait-with-bounds-default.rs diff --git a/src/test/compile-fail/impl-bounds-checking.rs b/src/test/compile-fail/impl-bounds-checking.rs new file mode 100644 index 000000000000..00c415a860d4 --- /dev/null +++ b/src/test/compile-fail/impl-bounds-checking.rs @@ -0,0 +1,24 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +pub trait Clone2 { + fn clone(&self) -> Self; +} + + +trait Getter { + fn get(&self) -> T; +} + +impl Getter for int { //~ ERROR failed to find an implementation of trait Clone2 for int + fn get(&self) -> int { *self } +} + +fn main() { } diff --git a/src/test/run-pass/bug-7183-generics.rs b/src/test/run-pass/bug-7183-generics.rs new file mode 100644 index 000000000000..4fc5587e7f36 --- /dev/null +++ b/src/test/run-pass/bug-7183-generics.rs @@ -0,0 +1,45 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +#[allow(default_methods)] +trait Speak { + fn say(&self, s:&str) -> ~str; + fn hi(&self) -> ~str { hello(self) } +} + +fn hello(s:&S) -> ~str{ + s.say("hello") +} + +impl Speak for int { + fn say(&self, s:&str) -> ~str { + fmt!("%s: %d", s, *self) + } +} + +impl Speak for Option { + fn say(&self, s:&str) -> ~str { + match *self { + None => fmt!("%s - none", s), + Some(ref x) => { ~"something!" + x.say(s) } + } + } +} + + +fn main() { + assert_eq!(3.hi(), ~"hello: 3"); + assert_eq!(Some(Some(3)).hi(), ~"something!something!hello: 3"); + assert_eq!(None::.hi(), ~"hello - none"); + + // These fail because of a bug in monomorphization's ID generation. + //assert_eq!(Some(None::).hi(), ~"something!hello - none"); + //assert_eq!(Some(3).hi(), ~"something!hello: 3"); +} diff --git a/src/test/run-pass/trait-with-bounds-default.rs b/src/test/run-pass/trait-with-bounds-default.rs new file mode 100644 index 000000000000..b3ddbbb9dc11 --- /dev/null +++ b/src/test/run-pass/trait-with-bounds-default.rs @@ -0,0 +1,41 @@ +// 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 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +pub trait Clone2 { + /// Returns a copy of the value. The contents of owned pointers + /// are copied to maintain uniqueness, while the contents of + /// managed pointers are not copied. + fn clone(&self) -> Self; +} + +#[allow(default_methods)] +trait Getter { + fn do_get(&self) -> T; + + fn do_get2(&self) -> (T, T) { + let x = self.do_get(); + (x.clone(), x.clone()) + } + +} + +impl Getter for int { + fn do_get(&self) -> int { *self } +} + +impl Getter for Option { + fn do_get(&self) -> T { self.get_ref().clone() } +} + + +fn main() { + assert_eq!(3.do_get2(), (3, 3)); + assert_eq!(Some(~"hi").do_get2(), (~"hi", ~"hi")); +}