| Commit message (Collapse) | Author | Age | Files | Lines |
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The 'asynchronously' argument to both GetLLDBCommandsFromIOHandler and
GetPythonCommandsFromIOHandler is true for all call sites. This commit
simplifies the API by dropping it and giving the baton a default
argument.
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This matches the naming scheme used by LLVM.
Differential revision: https://reviews.llvm.org/D71380
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As suggested by Pavel in a code review:
> Can we replace this (and maybe python too, while at it) with a
> Host/Config.h entry? A global definition means that one has to
> recompile everything when these change in any way, whereas in
> practice only a handful of files need this..
Differential revision: https://reviews.llvm.org/D71280
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Summary:
This patch removes File::SetStream() and File::SetDescriptor(),
and replaces most direct uses of File with pointers to File.
Instead of calling SetStream() on a file, we make a new file and
replace it.
My ultimate goal here is to introduce a new API class SBFile, which
has full support for python io.IOStream file objects. These can
redirect read() and write() to python code, so lldb::Files will
need a way to dispatch those methods. Additionally it will need some
form of sharing and assigning files, as a SBFile will be passed in and
assigned to the main IO streams of the debugger.
In my prototype patch queue, I make File itself copyable and add a
secondary class FileOps to manage the sharing and dispatch. In that
case SBFile was a unique_ptr<File>.
(here: https://github.com/smoofra/llvm-project/tree/files)
However in review, Pavel Labath suggested that it be shared_ptr instead.
(here: https://reviews.llvm.org/D67793)
In order for SBFile to use shared_ptr<File>, everything else should
as well.
If this patch is accepted, I will make SBFile use a shared_ptr
I will remove FileOps from future patches and use subclasses of File
instead.
Reviewers: JDevlieghere, jasonmolenda, zturner, jingham, labath
Reviewed By: labath
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67891
llvm-svn: 373090
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Summary:
This patch converts FileSystem::Open from this prototype:
Status
Open(File &File, const FileSpec &file_spec, ...);
to this one:
llvm::Expected<std::unique_ptr<File>>
Open(const FileSpec &file_spec, ...);
This is beneficial on its own, as llvm::Expected is a more modern
and recommended error type than Status. It is also a necessary step
towards https://reviews.llvm.org/D67891, and further developments
for lldb_private::File.
Reviewers: JDevlieghere, jasonmolenda, labath
Reviewed By: labath
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D67996
llvm-svn: 373003
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Summary: Usually, SIGINT and SIGSTOP don't imply a crash, e.g. SIGSTOP is sent on process launch and attach on some platforms.
Differential Revision: https://reviews.llvm.org/D67776
llvm-svn: 372961
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This is the only legitimate use we currently have for modifying
a CompletionRequest. Add a utility function for this purpose
and remove the remaining setters which go against the idea of
having an immutable CompletionRequest.
llvm-svn: 372858
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We currently have two lists in the CompletionRequest that we
inherited from the old API: The complete list of arguments ignoring
where the user requested completion and the list of arguments that
stops at the cursor. Having two lists of arguments is confusing
and can lead to subtle errors, so let's remove the complete list
until we actually need it.
llvm-svn: 372692
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The fact that index==-1 means "no arguments" is not obvious and only
used in one place from what I can tell. Also fixes several warnings
about using the cursor index as if it was a size_t when comparing.
Not fully NFC as we now also correctly update the partial argument list
when injecting the fake empty argument in the CompletionRequest
constructor.
llvm-svn: 372566
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We should in general not allow external code to fiddle with the internals of
CompletionRequest, but until this is gone let's at least provide a utility
function that makes this less dangerous.
This also now correct updates the partially parsed argument list,
but it doesn't seem to be used by anything that is behind one of
the current shift/SetCursorIndex calls, so this doesn't seeem to
fix any currently used completion.
llvm-svn: 372556
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The StringRef should always be identical to the C string, so we
might as well just create the StringRef from the C-string. This
might be slightly slower until we implement the storage of ArgEntry
with a string instead of a std::unique_ptr<char[]>. Until then we
have to do the additional strlen on the C string to construct the
StringRef.
llvm-svn: 371842
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The bugreport command exists to create domain-specific bug reports.
Currently it has one implementation for filing bugs on the unwinder. As
far as we can tell, it has never been of use. Although not exactly the
same as the reproducers, it's a bit confusing to have two parallel
command trees for (kind of) the same thing.
Differential revision: https://reviews.llvm.org/D65469
llvm-svn: 371132
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remove any undocumented/redundant return values
Summary:
We still have some leftovers of the old completion API in the internals of
LLDB that haven't been replaced by the new CompletionRequest. These leftovers
are:
* The return values (int/size_t) in all completion functions.
* Our result array that starts indexing at 1.
* `WordComplete` mode.
I didn't replace them back then because it's tricky to figure out what exactly they
are used for and the completion code is relatively untested. I finally got around
to writing more tests for the API and understanding the semantics, so I think it's
a good time to get rid of them.
A few words why those things should be removed/replaced:
* The return values are really cryptic, partly redundant and rarely documented.
They are also completely ignored by Xcode, so whatever information they contain will end up
breaking Xcode's completion mechanism. They are also partly impossible to even implement
as we assign negative values special meaning and our completion API sometimes returns size_t.
Completion functions are supposed to return -2 to rewrite the current line. We seem to use this
in some untested code path to expand the history repeat character to the full command, but
I haven't figured out why that doesn't work at the moment.
Completion functions return -1 to 'insert the completion character', but that isn't implemented
(even though we seem to activate this feature in LLDB sometimes).
All positive values have to match the number of results. This is obviously just redundant information
as the user can just look at the result list to get that information (which is what Xcode does).
* The result array that starts indexing at 1 is obviously unexpected. The first element of the array is
reserved for the common prefix of all completions (e.g. "foobar" and "footar" -> "foo"). The idea is
that we calculate this to make the life of the API caller easier, but obviously forcing people to have
1-based indices is not helpful (or even worse, forces them to manually copy the results to make it
0-based like Xcode has to do).
* The `WordComplete` mode indicates that LLDB should enter a space behind the completion. The
idea is that we let the top-level API know that we just provided a full completion. Interestingly we
`WordComplete` is just a single bool that somehow represents all N completions. And we always
provide full completions in LLDB, so in theory it should always be true.
The only use it currently serves is providing redundant information about whether we have a single
definitive completion or not (which we already know from the number of results we get).
This patch essentially removes `WordComplete` mode and makes the result array indexed from 0.
It also removes all return values from all internal completion functions. The only non-redundant information
they contain is about rewriting the current line (which is broken), so that functionality was moved
to the CompletionRequest API. So you can now do `addCompletion("blub", "description", CompletionMode::RewriteLine)`
to do the same.
For the SB API we emulate the old behaviour by making the array indexed from 1 again with the common
prefix at index 0. I didn't keep the special negative return codes as we either never sent them before (e.g. -2) or we
didn't even implement them in the Editline handler (e.g. -1).
I tried to keep this patch minimal and I'm aware we can probably now even further simplify a bunch of related code,
but I would prefer doing this in follow-up NFC commits
Reviewers: JDevlieghere
Reviewed By: JDevlieghere
Subscribers: arphaman, abidh, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66536
llvm-svn: 369624
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This patch moves the remaining completion functions from the
old completion API (that used several variables) to just
passing a single CompletionRequest.
This is for the most part a simple change as we just replace
the old arguments with a single CompletionRequest argument.
There are a few places where I had to create new CompletionRequests
in the called functions as CompletionRequests itself are immutable
and don't expose their internal match list anymore. This means that
if a function wanted to change the CompletionRequest or directly
access the result list, we need to work around this by creating
a new CompletionRequest and a temporary match/description list.
Preparation work for rdar://53769355
llvm-svn: 369000
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Replaying a reproducer in asynchronous mode never makes sense. This
patch disables asynchronous mode during replay.
Differential revision: https://reviews.llvm.org/D65547
llvm-svn: 367494
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Summary:
We've had a bug where two pieces of code, executing on two threads were
attempting to write inferior output simultaneously. The first one was in
Debugger::HandleProcessEvent, which handled the cases where stdout was
coming while the process was running. The second was in
CommandInterpreter::IOHandlerInputComplete, which was ensuring that any
output is printed before the command which caused process to run
terminates.
Both of these things make sense, but the fact they were implemented as
two independent functions without any synchronization meant that race
conditions could occur (e.g. both threads call process->GetSTDOUT, get
two chunks of data, but then end up calling stream->Write in opposite
order). This was most apparent in situations where a process quickly
writes a bunch of output and then exits (as all our register tests do).
This patch adds a mutex to ensure that stdout forwarding happens
atomically. It also refactors a code somewhat in order to reduce code
duplication.
Reviewers: clayborg, jingham
Subscribers: jfb, mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D65152
llvm-svn: 367418
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Completion requests have two fields that are essentially unimplemented:
`m_match_start_point` and `m_max_return_elements`. This would've been
okay, if it wasn't for the fact that this caused a bunch of useless
parameters to be passed around. Occasionally there would be a comment or
assert saying that they are not supported. This patch removes them.
llvm-svn: 367385
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When investigating a completion bug I got confused by the API.
LongestCommonPrefix finds the longest common prefix of the strings in
the string list. Instead of returning that string through an output
argument, just return it by value.
llvm-svn: 367384
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Summary:
This is a bit more explicit, and makes it possible to build LLDB without
varying the -I lines per-directory.
(The latter is useful because many build systems only allow this to be
configured per-library, and LLDB is insufficiently layered to be split into
multiple libraries on stricter build systems).
(My comment on D65185 has some more context)
Reviewers: JDevlieghere, labath, chandlerc, jdoerfert
Reviewed By: labath
Subscribers: mgorny, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D65397
Patch by Sam McCall!
llvm-svn: 367241
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Right now our Properties.inc only generates the initializer for the
options list but not the array declaration boilerplate around it. As the
array definition is identical for all arrays, we might as well also let
the Properties.inc generate it alongside the initializers.
Unfortunately we cannot do the same for enums, as there's this magic
ePropertyExperimental, which needs to come at the end to be interpreted
correctly. Hopefully we can get rid of this in the future and do the
same for the property enums.
Differential revision: https://reviews.llvm.org/D65353
llvm-svn: 367238
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With the plugins having their own tablgen file, it makes sense to split
off the interpreter properties as well.
llvm-svn: 367138
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Property definitions are currently defined in a PropertyDefinition array
and have a corresponding enum to index in this array. Unfortunately this
is quite error prone. Indeed, just today we found an incorrect merge
where a discrepancy between the order of the enum values and their
definition caused the test suite to fail spectacularly.
Tablegen can streamline the process of generating the property
definition table while at the same time guaranteeing that the enums stay
in sync. That's exactly what this patch does. It adds a new tablegen
file for the properties, building on top of the infrastructure that
Raphael added recently for the command options. It also introduces two
new tablegen backends: one for the property definitions and one for
their corresponding enums.
It might be worth mentioning that I generated most of the tablegen
definitions from the existing property definitions, by adding a dump
method to the struct. This seems both more efficient and less error
prone that copying everything over by hand. Only Enum properties needed
manual fixup for the EnumValues and DefaultEnumValue fields.
Differential revision: https://reviews.llvm.org/D65185
llvm-svn: 367058
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This patch replaces explicit calls to log::Printf with the new LLDB_LOGF
macro. The macro is similar to LLDB_LOG but supports printf-style format
strings, instead of formatv-style format strings.
So instead of writing:
if (log)
log->Printf("%s\n", str);
You'd write:
LLDB_LOG(log, "%s\n", str);
This change was done mechanically with the command below. I replaced the
spurious if-checks with vim, since I know how to do multi-line
replacements with it.
find . -type f -name '*.cpp' -exec \
sed -i '' -E 's/log->Printf\(/LLDB_LOGF\(log, /g' "{}" +
Differential revision: https://reviews.llvm.org/D65128
llvm-svn: 366936
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llvm-svn: 364361
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Summary:
NFC = [[ https://llvm.org/docs/Lexicon.html#nfc | Non functional change ]]
This commit is the result of modernizing the LLDB codebase by using
`nullptr` instread of `0` or `NULL`. See
https://clang.llvm.org/extra/clang-tidy/checks/modernize-use-nullptr.html
for more information.
This is the command I ran and I to fix and format the code base:
```
run-clang-tidy.py \
-header-filter='.*' \
-checks='-*,modernize-use-nullptr' \
-fix ~/dev/llvm-project/lldb/.* \
-format \
-style LLVM \
-p ~/llvm-builds/debug-ninja-gcc
```
NOTE: There were also changes to `llvm/utils/unittest` but I did not
include them because I felt that maybe this library shall be updated in
isolation somehow.
NOTE: I know this is a rather large commit but it is a nobrainer in most
parts.
Reviewers: martong, espindola, shafik, #lldb, JDevlieghere
Reviewed By: JDevlieghere
Subscribers: arsenm, jvesely, nhaehnle, hiraditya, JDevlieghere, teemperor, rnkovacs, emaste, kubamracek, nemanjai, ki.stfu, javed.absar, arichardson, kbarton, jrtc27, MaskRay, atanasyan, dexonsmith, arphaman, jfb, jsji, jdoerfert, lldb-commits, llvm-commits
Tags: #lldb, #llvm
Differential Revision: https://reviews.llvm.org/D61847
llvm-svn: 361484
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I was looking at the current implementation of SourceInitFile and there
were a few things that made this function hard to read:
* The code to find the ~/.lldbinit file is duplicated across the cwd
and non-cwd branch.
* The ./.lldbinit is once computed by resolving .lldbinit and once by
resolving ./.lldbinit.
* It wasn't clear to me what happened when you're sourcing the
.lldbinit file in the current working directory. Apparently we do
nothing when we property to control that is set to warn (makes sense)
and we don't care when the property is set to true (debatable).
* There were at least two branches where the status of the
CommandReturnObject were not set.
This patch attempts to simplify that code.
Differential revision: https://reviews.llvm.org/D61994
llvm-svn: 361080
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The change that was committed for this used \\s to match spaces which does not work correctly on all platforms. Using [:space:] makes the test pass on both Linux and Windows
llvm-svn: 361064
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Previously "bt all " would've failed as the regex didn't match
them.
Over the shoulder review by Jonas Devlieghere.
<rdar://problem/50824935>
llvm-svn: 360966
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This patch ensures that we propagate errors coming from the lldbinit
file trough the command/script interpreter. Before, if you did something
like command script import syntax_error.py, and the python file
contained a syntax error, lldb wouldn't tell you about it. This changes
with the current patch: errors are now propagated by default.
PS: Jim authored this change and I added testing.
Differential revision: https://reviews.llvm.org/D61579
llvm-svn: 360216
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Currently we have special handling for local lldbinit files in the
driver. At the same time, we have an SB API named
`SourceInitFileInCurrentWorkingDirectory` that does the same thing.
This patch removes the special handling from the driver and uses the API
instead. In addition to the obvious advantages of having one canonical
way of doing things and removing code duplication, this change also
means that the code path is the same for global and local lldb init
files.
Differential revision: https://reviews.llvm.org/D61577
llvm-svn: 360077
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This patch makes `re` an alias for `register`. Currently `re<TAB>` gives
you the choice between `register` and `reproducer`. Given that you use
`register` a lot more often, it should win for the common substring.
Differential revision: https://reviews.llvm.org/D61469
llvm-svn: 359927
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You can only find out about this useful customization by browsing
the settings list output or the llvm.org web pages. Mention it
in the help for thread list, thread backtrace & _regex_bt commands
to make it more discoverable.
llvm-svn: 359752
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This is part two of the change started in r359330. This patch moves the
ownership of the script interpreter from the command interpreter into
the debugger. I would've preferred to remove the lazy initialization,
however the fact that the scripting language is set after the debugger
is created makes that tricky. So for now this does exactly the same
thing as when it was under the command interpreter. The result is that
this patch is fully NFC.
Differential revision: https://reviews.llvm.org/D61211
llvm-svn: 359354
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The script language argument was passed from the debugger to the command
interpreter, only to call SetScriptLanguage on the debugger again. It
wasn't even used to initialize the script interpreter, because that
would query the debugger again. This patch removes the needless back and
forth.
llvm-svn: 359346
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As discussed in D61090, there's no good reason for the script
interpreter to depend on the command interpreter. When looking at the
code, it becomes clear that we mostly use the command interpreter as a
way to access the debugger. Hence, it makes more sense to just pass that
to the script interpreter directly.
This is part 1 out of 2. I have another patch in the pipeline that
changes the ownership of the script interpreter to the debugger as well,
but I didn't get around to finish that today.
Differential revision: https://reviews.llvm.org/D61172
llvm-svn: 359330
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For a single char argument, find_first_of is equal to find and
find_last_of is equal to rfind. While playing around with the plugin
stuff this caused an export failure because it always got inlined except
once, which resulted in an undefined symbol.
llvm-svn: 357198
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This patch adds the necessary logic to capture and replay commands
entered into the command interpreter. A DataRecorder shadows the input
and writes its data to a know file. During replay this file is used as
the command interpreter's input.
It's possible to the command interpreter more than once, with a
different input source. We support this scenario by using multiple
buffers. The synchronization for this takes place at the SB layer, where
we create a new recorder every time the debugger input is changed.
During replay we use the corresponding buffer as input.
Differential revision: https://reviews.llvm.org/D58564
llvm-svn: 355249
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The `ap` suffix is a remnant of lldb's former use of auto pointers,
before they got deprecated. Although all their uses were replaced by
unique pointers, some variables still carried the suffix.
In r353795 I removed another auto_ptr remnant, namely redundant calls to
::get for unique_pointers. Jim justly noted that this is a good
opportunity to clean up the variable names as well.
I went over all the changes to ensure my find-and-replace didn't have
any undesired side-effects. I hope I didn't miss any, but if you end up
at this commit doing a git blame on a weirdly named variable, please
know that the change was unintentional.
llvm-svn: 353912
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This commit removes redundant calls to smart pointer’s ::get() method.
https://clang.llvm.org/extra/clang-tidy/checks/readability-redundant-smartptr-get.html
llvm-svn: 353795
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Unlike std::make_unique, which is only available since C++14,
std::make_shared is available since C++11. Not only is std::make_shared
a lot more readable compared to ::reset(new), it also performs a single
heap allocation for the object and control block.
Differential revision: https://reviews.llvm.org/D57990
llvm-svn: 353764
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We save two levels of indentation by returning early if the given file
doesn't exists or cannot be opened.
llvm-svn: 353472
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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Simplify some code in PreprocessCommand. This change improves
consistency, reduces the indentation and makes the code easier to follow
overall.
llvm-svn: 350166
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Using compare is verbose, bug prone and potentially inefficient (because
of early termination). Replace relevant call sites with the (in)equality
operator.
llvm-svn: 349972
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This patch simplifies boolean expressions acorss LLDB. It was generated
using clang-tidy with the following command:
run-clang-tidy.py -checks='-*,readability-simplify-boolean-expr' -format -fix $PWD
Differential revision: https://reviews.llvm.org/D55584
llvm-svn: 349215
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llvm-svn: 346780
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This patch modifies how we open File instances in LLDB. Rather than
passing a path or FileSpec to the constructor, we now go through the
virtual file system. This is needed in order to make things work with
the VFS in the future.
Differential revision: https://reviews.llvm.org/D54020
llvm-svn: 346049
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This patch removes the logic for resolving paths out of FileSpec and
updates call sites to rely on the FileSystem class instead.
Differential revision: https://reviews.llvm.org/D53915
llvm-svn: 345890
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