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30 lines
887 B
Rust
30 lines
887 B
Rust
// run-pass
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// Issue #2005: Check that boxed fixed-size arrays are properly
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// accounted for (namely, only deallocated if they were actually
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// created) when they appear as temporaries in unused arms of a match
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// expression.
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pub fn foo(box_1: fn () -> Box<[i8; 1]>,
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box_2: fn () -> Box<[i8; 20]>,
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box_3: fn () -> Box<[i8; 300]>,
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box_4: fn () -> Box<[i8; 4000]>,
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) {
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println!("Hello World 1");
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let _: Box<[i8]> = match 3 {
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1 => box_1(),
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2 => box_2(),
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3 => box_3(),
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_ => box_4(),
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};
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println!("Hello World 2");
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}
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pub fn main() {
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fn box_1() -> Box<[i8; 1]> { Box::new( [1] ) }
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fn box_2() -> Box<[i8; 20]> { Box::new( [1; 20] ) }
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fn box_3() -> Box<[i8; 300]> { Box::new( [1; 300] ) }
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fn box_4() -> Box<[i8; 4000]> { Box::new( [1; 4000] ) }
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foo(box_1, box_2, box_3, box_4);
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}
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