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add test case for #10741

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y21 2023-05-21 15:07:53 +02:00
parent 191a901a8d
commit e9a98d925f
2 changed files with 36 additions and 7 deletions
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13
tests/ui/large_stack_arrays.rs
View file

@ -18,6 +18,19 @@ pub static DOESNOTLINT2: [u8; 512_001] = {
[x; 512_001]
};
fn issue_10741() {
#[derive(Copy, Clone)]
struct Large([u32; 100_000]);
fn build() -> Large {
Large([0; 100_000])
}
let _x = [build(); 3];
let _y = [build(), build(), build()];
}
fn main() {
let bad = (
[0u32; 20_000_000],

30
tests/ui/large_stack_arrays.stderr
View file

@ -1,14 +1,30 @@
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:23:9
--> $DIR/large_stack_arrays.rs:29:14
|
LL | let _x = [build(); 3];
| ^^^^^^^^^^^^
|
= help: consider allocating on the heap with `vec![build(); 3].into_boxed_slice()`
= note: `-D clippy::large-stack-arrays` implied by `-D warnings`
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:31:14
|
LL | let _y = [build(), build(), build()];
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= help: consider allocating on the heap with `vec![build(), build(), build()].into_boxed_slice()`
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:36:9
|
LL | [0u32; 20_000_000],
| ^^^^^^^^^^^^^^^^^^
|
= help: consider allocating on the heap with `vec![0u32; 20_000_000].into_boxed_slice()`
= note: `-D clippy::large-stack-arrays` implied by `-D warnings`
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:24:9
--> $DIR/large_stack_arrays.rs:37:9
|
LL | [S { data: [0; 32] }; 5000],
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -16,7 +32,7 @@ LL | [S { data: [0; 32] }; 5000],
= help: consider allocating on the heap with `vec![S { data: [0; 32] }; 5000].into_boxed_slice()`
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:25:9
--> $DIR/large_stack_arrays.rs:38:9
|
LL | [Some(""); 20_000_000],
| ^^^^^^^^^^^^^^^^^^^^^^
@ -24,7 +40,7 @@ LL | [Some(""); 20_000_000],
= help: consider allocating on the heap with `vec![Some(""); 20_000_000].into_boxed_slice()`
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:26:9
--> $DIR/large_stack_arrays.rs:39:9
|
LL | [E::T(0); 5000],
| ^^^^^^^^^^^^^^^
@ -32,12 +48,12 @@ LL | [E::T(0); 5000],
= help: consider allocating on the heap with `vec![E::T(0); 5000].into_boxed_slice()`
error: allocating a local array larger than 512000 bytes
--> $DIR/large_stack_arrays.rs:27:9
--> $DIR/large_stack_arrays.rs:40:9
|
LL | [0u8; usize::MAX],
| ^^^^^^^^^^^^^^^^^
|
= help: consider allocating on the heap with `vec![0u8; usize::MAX].into_boxed_slice()`
error: aborting due to 5 previous errors
error: aborting due to 7 previous errors