src/test/run-pass/expr-if.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
  12
  13
  14
  15 // Tests for if as expressions
  16
  17 fn test_if() { let rs: bool = if true { true } else { false }; assert!((rs)); }
  18
  19 fn test_else() {
  20     let rs: bool = if false { false } else { true };
  21     assert!((rs));
  22 }
  23
  24 fn test_elseif1() {
  25     let rs: bool = if true { true } else if true { false } else { false };
  26     assert!((rs));
  27 }
  28
  29 fn test_elseif2() {
  30     let rs: bool = if false { false } else if true { true } else { false };
  31     assert!((rs));
  32 }
  33
  34 fn test_elseif3() {
  35     let rs: bool = if false { false } else if false { false } else { true };
  36     assert!((rs));
  37 }
  38
  39 fn test_inferrence() {
  40     let rs = if true { true } else { false };
  41     assert!((rs));
  42 }
  43
  44 fn test_if_as_if_condition() {
  45     let rs1 = if if false { false } else { true } { true } else { false };
  46     assert!((rs1));
  47     let rs2 = if if true { false } else { true } { false } else { true };
  48     assert!((rs2));
  49 }
  50
  51 fn test_if_as_block_result() {
  52     let rs = if true { if false { false } else { true } } else { false };
  53     assert!((rs));
  54 }
  55
  56 pub fn main() {
  57     test_if();
  58     test_else();
  59     test_elseif1();
  60     test_elseif2();
  61     test_elseif3();
  62     test_inferrence();
  63     test_if_as_if_condition();
  64     test_if_as_block_result();
  65 }