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https://github.com/rust-lang/rust-clippy
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01646457a9
Instead of just saying “this function's stack frame is big”, report: * the (presumed) size of the frame * the size and type of the largest local contributing to that size * the configurable limit that was exceeded (once)
42 lines
1.8 KiB
Text
42 lines
1.8 KiB
Text
error: this function may allocate 250$PTR bytes on the stack
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--> tests/ui/large_stack_frames.rs:27:4
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LL | fn many_small_arrays() {
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| ^^^^^^^^^^^^^^^^^
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...
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LL | let x5 = [0u8; 500_000];
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| -- `x5` is the largest part, at 500000 bytes for type `[u8; 500000]`
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= note: 250$PTR bytes is larger than Clippy's configured `stack-size-threshold` of 512000
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= note: allocating large amounts of stack space can overflow the stack and cause the program to abort
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= note: `-D clippy::large-stack-frames` implied by `-D warnings`
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= help: to override `-D warnings` add `#[allow(clippy::large_stack_frames)]`
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error: this function may allocate 1000000 bytes on the stack
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--> tests/ui/large_stack_frames.rs:37:4
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LL | fn large_return_value() -> ArrayDefault<1_000_000> {
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| ^^^^^^^^^^^^^^^^^^ ----------------------- this is the largest part, at 1000000 bytes for type `ArrayDefault<1000000>`
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= note: 1000000 bytes is larger than Clippy's configured `stack-size-threshold` of 512000
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error: this function may allocate 100$PTR bytes on the stack
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--> tests/ui/large_stack_frames.rs:42:4
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LL | fn large_fn_arg(x: ArrayDefault<1_000_000>) {
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| ^^^^^^^^^^^^ - `x` is the largest part, at 1000000 bytes for type `ArrayDefault<1000000>`
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= note: 100$PTR bytes is larger than Clippy's configured `stack-size-threshold` of 512000
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error: this function may allocate 100$PTR bytes on the stack
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--> tests/ui/large_stack_frames.rs:48:13
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LL | let f = || black_box(&[0u8; 1_000_000]);
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| ^^^^^^^^^^^^^^----------------^
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| |
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| this is the largest part, at 1000000 bytes for type `[u8; 1000000]`
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= note: 100$PTR bytes is larger than Clippy's configured `stack-size-threshold` of 512000
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error: aborting due to 4 previous errors
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