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Non-boxed recursive tag constructor fails to compile with "Out of stack space" #1048

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mbrubeck opened this issue Oct 18, 2011 · 1 comment
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Non-boxed recursive tag constructor fails to compile with "Out of stack space" #1048

mbrubeck opened this issue Oct 18, 2011 · 1 comment

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@mbrubeck
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If you try to compile tag list<T> { nil; cons(int, list<T>); } (note "list" instead of "@list" in the recursive constructor), then the compiler crashes with rt: e2b5:0x00000000: Out of stack space, sorry.

It would be nice to detect this condition and provide a more useful error message instead.

The bottom of the stack is:

#24545 0x080ff28e in middle::ty::type_structurally_contains::_5f3ac45ea1b71c45 ()
#24546 0x080ff28e in middle::ty::type_structurally_contains::_5f3ac45ea1b71c45 ()
#24547 0x080ff28e in middle::ty::type_structurally_contains::_5f3ac45ea1b71c45 ()
#24548 0x080ff28e in middle::ty::type_structurally_contains::_5f3ac45ea1b71c45 ()
#24549 0x080ff28e in middle::ty::type_structurally_contains::_5f3ac45ea1b71c45 ()
#24550 0x080ff28e in middle::ty::type_structurally_contains::_5f3ac45ea1b71c45 ()
#24551 0x08061feb in middle::trans::type_of_tag::_a125eb2fba6a34ee ()
#24552 0x08061522 in middle::trans::type_of_inner::_f9908926438f2236 ()
#24553 0x080603bb in middle::trans::type_of_fn::_d1c7c2dc9390d6d7 ()
#24554 0x08060a5e in middle::trans::type_of_fn_from_ty::_e121377dba6b8bd0 ()
#24555 0x080bc50c in middle::trans::register_fn_full::_3897f5c49d271367 ()
#24556 0x080bc358 in middle::trans::register_fn::_2c73ab4a26be7a7a ()
#24557 0x080c2fd1 in middle::trans::collect_tag_ctor::_5ff72ae6ae3153d1 ()
#24558 0x082a833e in middle::trans::collect_tag_ctors::thunk1669 ()
#24559 0x082c9589 in syntax::visit::default_visitor::thunk5653 ()
#24560 0x080c354b in middle::trans::collect_tag_ctors::_ec22d712145eb498 ()
#24561 0x080c9503 in middle::trans::trans_crate::_19245ca61421d176 ()
#24562 0x082e809b in driver::rustc::compile_input::thunk8685 ()
#24563 0x0827812d in driver::rustc::time::_8bcb4789e2c2f57e ()
#24564 0x0827acff in driver::rustc::compile_input::_c6e994438f359ee8 ()
#24565 0x08286208 in driver::rustc::main::_ed54e060591e3a31 ()
#24566 0x08286e93 in _rust_main ()
#24567 0x082eb12c in _rust_main_wrap ()
#24568 0x01337321 in task_start_wrapper (a=0xb7fe0010) at ../src/rt/rust_task.cpp:150
#24569 0xdeadbeef in ?? ()
#24570 0xb7fe0010 in ?? ()
#24571 0x00000010 in ?? ()
@mbrubeck
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Duplicate of issue #742.

@mbrubeck mbrubeck mentioned this issue Nov 5, 2011
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alexcrichton added a commit to alexcrichton/rust that referenced this issue Apr 21, 2015
@alexcrichton
rollup merge of rust-lang#24222: lambda/rename-soft-link-to-symlink
2fc2e12 
Implement [RFC rust-lang#1048][rfc].

On Windows, when you create a symbolic link you must specify whether it
points to a directory or a file, even if it is created dangling, while
on Unix, the same symbolic link could point to a directory, a file, or
nothing at all.  Furthermore, on Windows special privilege is necessary
to use a symbolic link, while on Unix, you can generally create a
symbolic link in any directory you have write privileges to.

This means that it is unlikely to be able to use symbolic links purely
portably; anyone who uses them will need to think about the cross
platform implications.  This means that using platform-specific APIs
will make it easier to see where code will need to differ between the
platforms, rather than trying to provide some kind of compatibility
wrapper.

Furthermore, `soft_link` has no precedence in any other API, so to avoid
confusion, move back to the more standard `symlink` terminology.

Create a `std::os::unix::symlink` for the Unix version that is
destination type agnostic, as well as `std::os::windows::{symlink_file,
symlink_dir}` for Windows.

Because this is a stable API, leave a compatibility wrapper in
`std::fs::soft_link`, which calls `symlink` on Unix and `symlink_file`
on Windows, preserving the existing behavior of `soft_link`.

[rfc]: rust-lang/rfcs#1048
celinval pushed a commit to celinval/rust-dev that referenced this issue Jun 4, 2024
@adpaco-aws @tedinski
Add a test for ctpop (rust-lang#1048)
0e817e6 
* Add a test for `ctpop`

* Fix format
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@mbrubeck