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The compiler does not report errors for recursive calls that can not be ended #128217

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hacbit opened this issue Jul 26, 2024 · 2 comments
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A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@hacbit
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hacbit commented Jul 26, 2024

Code

fn foo() {
    bar()
}
fn bar() {
    foo()
}
fn main() {
    foo()
}

Current output

thread 'main' has overflowed its stack
fatal runtime error: stack overflow

Desired output

It shouldn't pass compilation :(

Rationale and extra context

I think the compiler should detect recursive calls that can't end and report an error, rather than exiting at runtime due to a stack overflow. btw, I tried checking with cargo clippy but didn't detect the issue

Other cases

No response

Rust Version

rustc 1.81.0-nightly (3cf924b93 2024-06-15)
binary: rustc
commit-hash: 3cf924b934322fd7b514600a7dc84fc517515346
commit-date: 2024-06-15
host: x86_64-pc-windows-msvc
release: 1.81.0-nightly
LLVM version: 18.1.7

Anything else?

No response

@hacbit hacbit added A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jul 26, 2024
@asquared31415
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Duplicate of #57965
It is known that indirect recursion (anything not directly calling itself) is not detected at this time.

@hacbit
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hacbit commented Jul 26, 2024

Duplicate of #57965 It is known that indirect recursion (anything not directly calling itself) is not detected at this time.

thanks, i get it.

@hacbit hacbit closed this as completed Jul 26, 2024
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A-diagnostics Area: Messages for errors, warnings, and lints T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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