src/test/run-pass/output-slot-variants.rs

   1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![allow(dead_assignment)]
  12 #![allow(unused_variable)]
  13 #![allow(unknown_features)]
  14 #![feature(box_syntax)]
  15
  16 struct A { a: int, b: int }
  17 struct Abox { a: Box<int>, b: Box<int> }
  18
  19 fn ret_int_i() -> int { 10 }
  20
  21 fn ret_ext_i() -> Box<int> { box 10 }
  22
  23 fn ret_int_rec() -> A { A {a: 10, b: 10} }
  24
  25 fn ret_ext_rec() -> Box<A> { box A {a: 10, b: 10} }
  26
  27 fn ret_ext_mem() -> Abox { Abox {a: box 10, b: box 10} }
  28
  29 fn ret_ext_ext_mem() -> Box<Abox> { box Abox{a: box 10, b: box 10} }
  30
  31 pub fn main() {
  32     let mut int_i: int;
  33     let mut ext_i: Box<int>;
  34     let mut int_rec: A;
  35     let mut ext_rec: Box<A>;
  36     let mut ext_mem: Abox;
  37     let mut ext_ext_mem: Box<Abox>;
  38     int_i = ret_int_i(); // initializing
  39
  40     int_i = ret_int_i(); // non-initializing
  41
  42     int_i = ret_int_i(); // non-initializing
  43
  44     ext_i = ret_ext_i(); // initializing
  45
  46     ext_i = ret_ext_i(); // non-initializing
  47
  48     ext_i = ret_ext_i(); // non-initializing
  49
  50     int_rec = ret_int_rec(); // initializing
  51
  52     int_rec = ret_int_rec(); // non-initializing
  53
  54     int_rec = ret_int_rec(); // non-initializing
  55
  56     ext_rec = ret_ext_rec(); // initializing
  57
  58     ext_rec = ret_ext_rec(); // non-initializing
  59
  60     ext_rec = ret_ext_rec(); // non-initializing
  61
  62     ext_mem = ret_ext_mem(); // initializing
  63
  64     ext_mem = ret_ext_mem(); // non-initializing
  65
  66     ext_mem = ret_ext_mem(); // non-initializing
  67
  68     ext_ext_mem = ret_ext_ext_mem(); // initializing
  69
  70     ext_ext_mem = ret_ext_ext_mem(); // non-initializing
  71
  72     ext_ext_mem = ret_ext_ext_mem(); // non-initializing
  73
  74 }