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// Copyright (C) 2016-2018 Free Software Foundation, Inc.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#![allow(dead_code)]
#![allow(unused_variables)]
#![allow(unused_assignments)]
pub trait Whatever {
fn whatever(&self) -> i32;
fn static_i32(x: i32) -> Self;
}
impl Whatever for i32 {
fn whatever(&self) -> i32 {
*self // set breakpoint 2 here
}
fn static_i32(x: i32) -> i32 {
x
}
}
pub struct HasMethods {
value: i32
}
impl HasMethods {
pub fn new() -> HasMethods {
HasMethods { value: 0 }
}
pub fn incr(&mut self) -> &mut HasMethods {
self.value += 1;
self
}
pub fn take(self) -> HasMethods {
self
}
}
impl Whatever for HasMethods {
fn whatever(&self) -> i32 {
self.value
}
fn static_i32(x: i32) -> HasMethods {
HasMethods{value: x}
}
}
enum SomeEnum {
One,
Two,
Three(i32),
Four{x: i32}
}
impl SomeEnum {
fn value(&self) -> i32 {
match *self {
SomeEnum::Three(x) => x,
SomeEnum::Four{x} => x,
_ => 0
}
}
fn mut_value(&mut self) -> i32 {
match *self {
SomeEnum::Three(x) => x,
SomeEnum::Four{x} => x,
_ => 0
}
}
fn take_value(self) -> (i32, SomeEnum) {
(match self {
SomeEnum::Three(x) => x,
SomeEnum::Four{x} => x,
_ => 0
}, self)
}
}
enum SimpleEnum {
One,
Two,
Three
}
impl SimpleEnum {
fn value(&self) -> i32 {
match *self {
SimpleEnum::One => 1,
SimpleEnum::Two => 2,
SimpleEnum::Three => 452,
}
}
}
fn main() {
let mut a = SomeEnum::Three(23);
let av = a.value();
let amv = (&mut a).mut_value();
let atv = a.take_value();
let b = SomeEnum::Four{x: 24};
let bv = b.value();
let c = SimpleEnum::Three;
let d = c.value();
let mut x = HasMethods::new();
x.incr(); // set breakpoint 1 here
(&mut x).incr();
let y = 23i32.whatever();
println!("{}", y);
let z = x.take();
}
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