[Git][ghc/ghc][wip/romes/exceptions-propagate] 62 commits: base: Add `HasCallStack` constraint to `ioError`
Rodrigo Mesquita (@alt-romes)
gitlab at gitlab.haskell.org
Mon Oct 14 07:32:39 UTC 2024
Rodrigo Mesquita pushed to branch wip/romes/exceptions-propagate at Glasgow Haskell Compiler / GHC
Commits:
876d6e0e by Ben Gamari at 2024-10-04T15:07:53+01:00
base: Add `HasCallStack` constraint to `ioError`
As proposed in core-libraries-committee#275.
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9bfd9fd0 by Matthew Pickering at 2024-10-04T15:08:03+01:00
Fix toException method for ExceptionWithContext
Fixes #25235
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ac004028 by Matthew Pickering at 2024-10-04T15:09:07+01:00
Exception rethrowing
Basic changes:
* Change `catch` function to propagate exceptions using the
WhileHandling mechanism.
* Introduce `catchNoPropagate`, which does the same as before, but
passes an exception which can be rethrown.
* Introduce `rethrowIO` combinator, which rethrows an exception with a
context and doesn't add a new backtrace.
* Introduce `tryWithContext` for a variant of `try` which can rethrow
the exception with it's original context.
* onException is modified to rethrow the original error rather than
creating a new callstack.
* Functions which rethrow in GHC.Internal.IO.Handle.FD,
GHC.Internal.IO.Handle.Internals, GHC.Internal.IO.Handle.Text, and
GHC.Internal.System.IO.Error are modified to not add a new callstack.
Implements CLC proposal#202 <https://github.com/haskell/core-libraries-committee/issues/202>
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bcb293f2 by Cheng Shao at 2024-10-04T17:59:28-04:00
testsuite: remove accidentally checked in debug print logic
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68e2da5a by Rodrigo Mesquita at 2024-10-05T10:36:15-04:00
Deprecation for WarnCompatUnqualifiedImports
Fixes #25330
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4327f0e8 by Andrew Lelechenko at 2024-10-05T10:36:52-04:00
Restrict Data.List.NonEmpty.unzip to NonEmpty (a, b) -> (NonEmpty a, NonEmpty b)
Implementing the final phase of CLC proposal https://github.com/haskell/core-libraries-committee/issues/86
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ceca9efb by Cheng Shao at 2024-10-06T02:18:31+00:00
driver: fix runWorkerLimit on wasm
This commit fixes link-time unresolved symbol errors for sem_open etc
on wasm, by making runWorkerLimit always behave single-threaded. This
avoids introducing the jobserver logic into the final wasm module and
thus avoids referencing the posix semaphore symbols.
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135fd1ac by Torsten Schmits at 2024-10-06T02:18:31+00:00
Parallelize getRootSummary computations in dep analysis downsweep
This reuses the upsweep step's infrastructure to process batches of
modules in parallel.
I benchmarked this by running `ghc -M` on two sets of 10,000 modules;
one with a linear dependency chain and the other with a binary tree.
Comparing different values for the number of modules per thread
suggested an optimum at `length targets `div` (n_cap * 2)`, with results
similar to this one (6 cores, 12 threads):
```
Benchmark 1: linear 1 jobs
Time (mean ± σ): 1.775 s ± 0.026 s [User: 1.377 s, System: 0.399 s]
Range (min … max): 1.757 s … 1.793 s 2 runs
Benchmark 2: linear 6 jobs
Time (mean ± σ): 876.2 ms ± 20.9 ms [User: 1833.2 ms, System: 518.6 ms]
Range (min … max): 856.2 ms … 898.0 ms 3 runs
Benchmark 3: linear 12 jobs
Time (mean ± σ): 793.5 ms ± 23.2 ms [User: 2318.9 ms, System: 718.6 ms]
Range (min … max): 771.9 ms … 818.0 ms 3 runs
```
Results don't differ much when the batch size is reduced to a quarter
of that, but there's significant thread scheduling overhead for a size
of 1:
```
Benchmark 1: linear 1 jobs
Time (mean ± σ): 2.611 s ± 0.029 s [User: 2.851 s, System: 0.783 s]
Range (min … max): 2.591 s … 2.632 s 2 runs
Benchmark 2: linear 6 jobs
Time (mean ± σ): 1.189 s ± 0.007 s [User: 2.707 s, System: 1.103 s]
Range (min … max): 1.184 s … 1.194 s 2 runs
Benchmark 3: linear 12 jobs
Time (mean ± σ): 1.097 s ± 0.006 s [User: 2.938 s, System: 1.300 s]
Range (min … max): 1.093 s … 1.101 s 2 runs
```
Larger batches also slightly worsen performance.
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535a2117 by Daniel Díaz at 2024-10-06T09:51:46-04:00
Clarify the meaning of "exactly once" in LinearTypes
Solves documentaion issue #25084.
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92f8939a by Krzysztof Gogolewski at 2024-10-06T09:52:22-04:00
Only allow (a => b) :: Constraint rather than CONSTRAINT rep
Fixes #25243
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4a2f0f13 by Alan Zimmerman at 2024-10-07T05:16:54-04:00
EPA: Remove unused hsCaseAnnsRest
We never populate it, so remove it.
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5099057b by John Paul Adrian Glaubitz at 2024-10-07T05:17:40-04:00
rts: Fix invocation of __ieee_set_fp_control() on alpha-linux
Fixes the following error when building GHC on alpha-linux:
rts/posix/Signals.c: In function ‘initDefaultHandlers’:
rts/posix/Signals.c:709:5: error:
error: implicit declaration of function ‘ieee_set_fp_control’ [-Wimplicit-function-declaration]
709 | ieee_set_fp_control(0);
| ^~~~~~~~~~~~~~~~~~~
|
709 | ieee_set_fp_control(0);
|
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c9590ba0 by Teo Camarasu at 2024-10-07T05:18:17-04:00
Add changelog entries for !12479
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bf9c9566 by Matthew Pickering at 2024-10-07T13:19:30-04:00
javascript: Read fields of ObjectBlock lazily
When linking a module with a large dependency footprint too much of the
object files were forced during linking. This lead to a large amount of
memory taken up by thunks which would never be forced
On the PartialDownsweep test this halves the memory required (from 25G
to 13G).
Towards #25324
-------------------------
Metric Increase:
size_hello_obj
-------------------------
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571329df by Matthew Pickering at 2024-10-07T13:20:06-04:00
ci: Run the i386 validation job when i386 label is set
This is helpful when making changes to base and must update the
javascript and i386 base exports files.
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e68f9aaf by Matthew Pickering at 2024-10-07T13:20:42-04:00
Rewrite partitionByWorkerSize to avoid pattern match checker bug
With `-g3` the pattern match checker would warn about these incomplete
patterns. This affects the debug_info builds on CI.
```
Pattern match(es) are non-exhaustive
In an equation for ‘go’:
Patterns of type ‘[a]’, ‘[a]’, ‘[SpecFailWarning]’ not matched:
(_:_) _ _
|
2514 | go [] small warnings = (small, warnings)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^...
```
Workaround for #25338
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d915dc8b by Arnaud Spiwack at 2024-10-07T19:23:00-04:00
Remove the wrapper/coercion-passing logic for submultiplicity checks
Instead, we use a dedicated DelayedError, which is emitted
systematically on submultiplicity checks, but is suppressed if we can
indeed solve the submultiplicity constraint with a reflexivity
coercion.
This way, we don't have to return anything from `tcSubMult`, which now
looks like a regular constraint check, the rest is implementation
detail. This removes all of the strange boilerplate that I'd been
struggling with under the previous implementation. Even if
submultiplicity checks are not properly constraints, this way it's
contained entirely within a `WantedConstraint`. Much more pleasant.
Closes #25128.
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1d226116 by Sven Tennie at 2024-10-07T19:23:37-04:00
AArch64: Implement switch/jump tables (#19912)
This improves the performance of Cmm switch statements (compared to a
chain of if statements.)
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3fe621dd by Mario Blažević at 2024-10-07T19:24:18-04:00
Fixes #25256, missing parens inside TH-printed pattern type signature
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ea4b4391 by ARATA Mizuki at 2024-10-07T19:24:59-04:00
Better documentation for floatRange function
Closes #16479
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ff09205c by Andreas Klebinger at 2024-10-07T19:25:35-04:00
Adjust progress message for hadrian to include cwd.
Fixes #25335
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5fd320da by Sven Tennie at 2024-10-07T19:26:12-04:00
CCallConv test: Align argument types
The C calling convention / standard requires that arguments and their
values are of the same type.
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c6e5fd3d by Cheng Shao at 2024-10-07T19:26:47-04:00
hadrian: remove unused ghciWithDebugger field from flavour config
This patch removes the ghciWithDebugger field from flavour config
since it's actually not used anywhere.
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9c9c790d by sheaf at 2024-10-07T19:27:23-04:00
user's guide: update docs for X86 CPU flags
This commit updates the section of the user's guide pertaining to
X86 feature flags with the following changes:
- the NCG backend now supports SIMD, so remove all text
that says the contrary,
- the LLVM backend does not "automatically detect" features,
so remove any text that makes that claim.
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a1ecc826 by Sven Tennie at 2024-10-08T13:36:03-04:00
ci: RISCV64 cross-compile testing
This adds a validation job which tests that we can build a riscv64 cross
compiler and build a simple program using it. We do not currently run
the whole testsuite.
Towards #25254
Co-authored-by: Matthew Pickering <matthewtpickering at gmail.com>
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d5c2577f by Arnaud Spiwack at 2024-10-08T13:36:44-04:00
Remove unused accumulators in partition_errors
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55609880 by Andrzej Rybczak at 2024-10-09T16:41:46-04:00
Fix typo in the @since annotation of annotateIO
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ef481813 by Alan Zimmerman at 2024-10-09T16:42:23-04:00
EPA: Remove [AddEpAnn] from (most of) HsExpr
EPA: introduce EpAnnLam for lambda annotationsi, and remove `glAA`
from `Parser.y`, it is the same as `glR`
EPA: Remove unused annotation from XOpApp
EPA: Use EpToken for XNPat and XNegApp
EPA: specific anns for XExplicitTuple / XTuplePat / sumPatParens.
EPA: Use specific annotation for MultiIf
EPA: Move annotations into FunRhs
EPA: Remove [AddEpAnn] from SigPat and ExprWithTySig
EPA: Remove [AddEpAnn] from ArithSeq
EPA: Remove [AddEpAnn] from HsProc
EPA: Remove [AddEpAnn] from HsStatic
EPA: Remove [AddEpAnn] from BindStmt
EPA: Remove [AddEpAnn] from TransStmt
EPA: Remove [AddEpAnn] from HsTypedSplice
EPA: Remove [AddEpAnn] from HsUntypedSpliceExpr
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69960230 by Fabian Thorand at 2024-10-10T19:03:59+00:00
Handle exceptions from IO manager backend
If an IO manager backend throws, it will not actually have registered
the file descriptor. However, at that point, the IO manager state was
already updated to assume the file descriptor is being tracked, leading
to errors and an eventual deadlock down the line as documented in the
issue #21969.
The fix for this is to undo the IO manager state change in case the
backend throws (just as we already do when the backend signals that the
file type is not supported). The exception then bubbles up to user code.
That way we make sure that
1. the bookkeeping state of the IO manager is consistent with the
actions taken by the backend, even in the presence of unexpected
failures, and
2. the error is not silent and visible to user code, making failures
easier to debug.
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1587cccf by Hassan Al-Awwadi at 2024-10-11T03:52:36-04:00
Put RdrName in the foExt field of FieldOcc
The main purpose of this commit is to rip RdrName out of FieldOcc, in
accordance with #21592, and as a side note it has simplified the method
we use to deal with ambiguity somewhat.
To do the first, we make FieldOccs store (LIdP p) instead of always
storing Located RdrName, and moved the readername to the extension
points where necessary.
For the second, well, we just turn an ambiguous RdrName into a unbound
Name through mkUnboundName. Later during disambiguateRecordBinds of the
type checking phase, we will try and do type-directed disambiguation based
on the rdrName field (for now), so this hack works out fine.
See Note [Ambiguous FieldOcc in record updates] for more details.
There are two additional minor changes in this commit:
* The HsRecSel constructor of HsExpr has been moved to the extension
constuctors, since its really GHC specific.
* HsProjection no longer has a Located DotFieldOcc as a field, but just a
regular DotFieldOcc, since DotFieldOcc already wraps a located
FieldLabelString
co-authored by: @Jade <Jade512 at proton.me>
@alt-romes <rodrigo.m.mesquita at gmail.com>
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2338a971 by Cheng Shao at 2024-10-11T03:53:13-04:00
driver: bail out when -fllvm is passed to GHC not configured with LLVM
This patch makes GHC bail out with an proper error message when it's
not configured with LLVM but users attempt to pass -fllvm, see #25011
and added comment for details.
Fixes #25011
Co-authored-by: Rodrigo Mesquita <rodrigo.m.mesquita at gmail.com>
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78ad81ec by Cristiano Moraes at 2024-10-11T03:53:55-04:00
configure: Find C++ probing when GCC version is the latest but G++ is old #23118
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083703a1 by Simon Peyton Jones at 2024-10-11T03:54:32-04:00
Consider Wanteds with rewriters as insoluble
This MR fixes #25325
See GHC.Tc.Types.Constraint, Note [Insoluble Wanteds], especially (IW2)
There is a small change in the error message for T14172, but it looks
entirely acceptable to me.
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0dfaeb66 by Simon Peyton Jones at 2024-10-11T03:54:32-04:00
Wibbles
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09d24d82 by Simon Peyton Jones at 2024-10-11T03:54:32-04:00
Spelling errors
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694489ed by sheaf at 2024-10-11T03:55:14-04:00
LLVM: use sse4.2 instead of sse42
LLVM expects the former instead of the latter since version 3.4.
Fixes #25019
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06ae8507 by sheaf at 2024-10-11T03:55:14-04:00
LLVM: make SSE4.2 imply +popcnt
For consistency with the NCG as well as with Clang and GCC, we make
the SSE4.2 feature flag imply +popcnt when using the LLVM backend.
Fixes #25353
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3fe843c7 by Cheng Shao at 2024-10-11T03:55:50-04:00
Drop obsolete libffi Makefile
This patch drops obsolete libffi Makefile from the tree, given it's
completely unused since removal of make build system in !7094.
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df70405c by Ben Gamari at 2024-10-11T03:56:26-04:00
ghc-internal: Fix incomplete matches on IOError
As noted in #25362, these incomplete matches were previously not being
warned about. They were easily addressed by use of
`GHC.Internal.Event.Windows.withException`.
Closes #25362.
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8584504b by Matthew Pickering at 2024-10-11T03:57:02-04:00
compiler: Fix orientation of GHC.Hs.Doc boot file
We should be free to import things from Language.Haskell.Syntax in GHC
modules. Therefore the the boot file for the loop between ImpExp and
GHC.Hs.Doc was in the wrong place.
Issue #21592
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d029f170 by Ben Gamari at 2024-10-11T23:43:17-04:00
testsuite: Normalise trailing digits from hole fits output
The type variables in the holes fit output from
`abstract_refinement_hole_fits` is quite sensitive to compiler
configuration. Specifically, a slight change in the inlining
behavior of `throw` changes type variable naming in `(>>=)` and a few
others.
Ideally we would make hole fits output more deterministic but in the
meantime we simply normalise this difference away as it not relevant
to the test's goal.
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da5d7d0d by Ben Gamari at 2024-10-11T23:43:17-04:00
base: Add test for #25066
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eb7ddae1 by Ben Gamari at 2024-10-11T23:43:17-04:00
base: Fix #25066
As noted in #25066, the exception backtrace proposal introduced a rather
subtle performance regression due to simplification producing Core which
the demand analyser concludes may diverge with a precise exception. The
nature of the problem is more completely described in the new Note
[Hiding precise exception signature in throw].
The (rather hacky) solution we use here hides the problematic
optimisation through judicious use of `noinline`. Ultimately however we
will want a more principled solution (e.g. #23847).
Fixes #255066
CLC proposal: https://github.com/haskell/core-libraries-committee/issues/290
Metric Decrease:
T9872d
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0060ece7 by Ben Gamari at 2024-10-11T23:43:17-04:00
base: Improve documentation of Control.Exception.Backtrace
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18f532f3 by Ben Gamari at 2024-10-11T23:43:53-04:00
Bump process submodule to v1.6.25.0
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a9a3badf by Hassan Al-Awwadi at 2024-10-11T23:44:29-04:00
Move HsInteger and HsRat to an extension constructor
These constructors were only used during the TC stage,
or during template haskell. It seemed clear that it was
independent of the source syntax represented in L.H.S,
and thus we removed it according to #21592.
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4dd30cba by Artem Pelenitsyn at 2024-10-11T23:45:09-04:00
Docs: Linear types: link Strict Patterns subsection
Also, fix a bug in RST with missing newline before a listing.
Co-authored-by: Arnaud Spiwack <arnaud at spiwack.net>
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adca5f2b by Ben Gamari at 2024-10-11T23:45:45-04:00
users guide: Address remaining TODOs in eventlog format docs
Closes #25296.
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9291c125 by Sylvain Henry at 2024-10-11T23:46:26-04:00
Fix z-encoding of tuples (#25364)
Tuples with prefix/suffix strings weren't always properly encoded with
their shortcut notations. Fix this.
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c08b68bc by Sven Tennie at 2024-10-11T23:47:01-04:00
Delete constants that can be deduced
There are macros in MachRegs.h to figure those out.
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8b402da2 by Zubin Duggal at 2024-10-12T20:36:57+00:00
hadrian: Handle broken symlinks properly when creating source dist directories
If we have a broken symlink in the repository, don't try to `need` the symlink
or the target of the symlink. Attempting to do so has `shake` attempt to read the
target to compute its hash, which fails because the target doesn't exist.
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16f97667 by Zubin Duggal at 2024-10-12T20:36:57+00:00
hadrian: exclude cabal.project.symlink.broken from source archives
Cabal 3.14 introduced a broken symlink in its testsuite. Unfortunately,
this broke our source distribution as we use use `tar --dereference` to avoid
issues with symlink compatibility on windows, and `tar --dereference` chokes
when it encounters any broken symlinks.
We can't get rid of `--dereference` because symlinks are generally broken on
windows, so the only option is to exclude this file from source archives.
see also https://github.com/haskell/cabal/issues/10442
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f1a2c9fc by Zubin Duggal at 2024-10-12T20:36:57+00:00
Bump Cabal submodule to 3.14
Metric Decrease:
MultiLayerModulesTH_OneShot
Metric Increase:
haddock.Cabal
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d3df37d4 by Matthew Pickering at 2024-10-14T08:32:04+01:00
Exception rethrowing
Basic changes:
* Change `catch` function to propagate exceptions using the
WhileHandling mechanism.
* Introduce `catchNoPropagate`, which does the same as before, but
passes an exception which can be rethrown.
* Introduce `rethrowIO` combinator, which rethrows an exception with a
context and doesn't add a new backtrace.
* Introduce `tryWithContext` for a variant of `try` which can rethrow
the exception with it's original context.
* onException is modified to rethrow the original error rather than
creating a new callstack.
* Functions which rethrow in GHC.Internal.IO.Handle.FD,
GHC.Internal.IO.Handle.Internals, GHC.Internal.IO.Handle.Text, and
GHC.Internal.System.IO.Error are modified to not add a new callstack.
Implements CLC proposal#202 <https://github.com/haskell/core-libraries-committee/issues/202>
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50a1a926 by Rodrigo Mesquita at 2024-10-14T08:32:07+01:00
Add test for #25300
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5b762e2d by Rodrigo Mesquita at 2024-10-14T08:32:07+01:00
exceptions: Improve the message layout as per #285
This commit fixes the layout of the additional information included when
displaying an exception, namely the type of the exception.
It also fixes the default handler's heading message to work well
together with the improved display message of SomeException.
CLC proposal#285
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cedb17b6 by Rodrigo Mesquita at 2024-10-14T08:32:07+01:00
Display type and callstack of exception on handler
This commit changes the Exception instance of SomeException to *simply*
display the underlying exception in `displayException`. The augmented
exception message that included the type and backtrace of the exception
are now only printed on a call to `displayExceptionWithInfo`.
At a surface level, existing programs should behave the same since the
`uncaughtExceptionHandler`, which is responsible for printing out uncaught
exceptions to the user, will use `displayExceptionWithInfo` by default.
However, unlike the instance's `displayException` method, the
`uncaughtExceptionHandler` can be overriden with
`setUncaughtExceptionHandler`. This makes the extra information opt-in
without fixing it the instance, which can be valuable if your program
wants to display uncaught exceptions to users in a user-facing way
(ie without backtraces).
This is what was originally agreed for CLC#231 or CLC#261 with regard to
the type of the exception information.
The call stack also becoming part of the default handler rather than the
Exception instance is an ammendment to CLC#164.
Discussion of the ammendment is part of CLC#285.
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7f882ddf by Rodrigo Mesquita at 2024-10-14T08:32:07+01:00
Remove redundant CallStack from exceptions
Before the exception backtraces proposal was implemented, ErrorCall
accumulated its own callstack via HasCallStack constraints, but
ExceptionContext is now accumulated automatically.
The original ErrorCall mechanism is now redundant and we get a duplicate
CallStack
Updates Cabal submodule to fix their usage of ErrorCallWithLocation to ErrorCall
CLC proposal#285
Fixes #25283
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39d55509 by Rodrigo Mesquita at 2024-10-14T08:32:08+01:00
Freeze call stack in error throwing functions
CLC proposal#285
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397d39df by Rodrigo Mesquita at 2024-10-14T08:32:08+01:00
De-duplicate displayContext and displayExceptionContext
The former was unused except for one module where it was essentially
re-defining displayExceptionContext.
Moreover, this commit extends the fix from
bfe600f5bb3ecd2c8fa71c536c63d3c46984e3f8 to displayExceptionContext too,
which was missing.
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7dee9c02 by Rodrigo Mesquita at 2024-10-14T08:32:08+01:00
Re-export NoBacktrace from Control.Exception
This was originally proposed and accepted in section
"2.7 Capturing Backtraces on Exceptions"
of the CLC proposal for exception backtraces.
However, the implementation missed this re-export, which this commit now
fixes.
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b66cb06b by Rodrigo Mesquita at 2024-10-14T08:32:08+01:00
Fix exception backtraces from GHCi
When running the program with `runhaskell`/`runghc` the backtrace should
match the backtrace one would get by compiling and running the program.
But currently, an exception thrown in a program interpreted with
`runhaskell` will:
* Not include the original exception backtrace at all
* Include the backtrace from the internal GHCi/ghc rethrowing of the
original exception
This commit fixes this divergence by not annotating the ghc(i) backtrace
(with NoBacktrace) and making sure that the backtrace of the original
exception is serialized across the boundary and rethrown with the
appropriate context.
Fixes #25116
- - - - -
30 changed files:
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- compiler/GHC/CmmToAsm/AArch64/CodeGen.hs
- compiler/GHC/CmmToAsm/AArch64/Instr.hs
- compiler/GHC/CmmToAsm/AArch64/Ppr.hs
- compiler/GHC/Core/Opt/SpecConstr.hs
- compiler/GHC/Driver/Errors/Ppr.hs
- compiler/GHC/Driver/Errors/Types.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/Make.hs
- compiler/GHC/Driver/Pipeline/Execute.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Binds.hs
- + compiler/GHC/Hs/Doc.hs-boot
- compiler/GHC/Hs/Dump.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/Hs/Extension.hs
- compiler/GHC/Hs/Instances.hs
- compiler/GHC/Hs/Lit.hs
- compiler/GHC/Hs/Pat.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Arrows.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Docs.hs
- compiler/GHC/HsToCore/Errors/Ppr.hs
- compiler/GHC/HsToCore/Errors/Types.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Match.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/8670c3f3772121d5c430184204d155f241c808a2...b66cb06bc842e45ba39183cd7bd34d2186b92dbe
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/8670c3f3772121d5c430184204d155f241c808a2...b66cb06bc842e45ba39183cd7bd34d2186b92dbe
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