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Diffstat (limited to 'src/test/ui/regions/regions-creating-enums.rs')
-rw-r--r-- | src/test/ui/regions/regions-creating-enums.rs | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/src/test/ui/regions/regions-creating-enums.rs b/src/test/ui/regions/regions-creating-enums.rs deleted file mode 100644 index 6ed68f803..000000000 --- a/src/test/ui/regions/regions-creating-enums.rs +++ /dev/null @@ -1,33 +0,0 @@ -enum Ast<'a> { - Num(usize), - Add(&'a Ast<'a>, &'a Ast<'a>) -} - -fn build() { - let x = Ast::Num(3); - let y = Ast::Num(4); - let z = Ast::Add(&x, &y); - compute(&z); -} - -fn compute(x: &Ast) -> usize { - match *x { - Ast::Num(x) => { x } - Ast::Add(x, y) => { compute(x) + compute(y) } - } -} - -fn map_nums<'a,'b, F>(x: &Ast, f: &mut F) -> &'a Ast<'b> where F: FnMut(usize) -> usize { - match *x { - Ast::Num(x) => { - return &Ast::Num((*f)(x)); //~ ERROR cannot return reference to temporary value - } - Ast::Add(x, y) => { - let m_x = map_nums(x, f); - let m_y = map_nums(y, f); - return &Ast::Add(m_x, m_y); //~ ERROR cannot return reference to temporary value - } - } -} - -fn main() {} |