This unifies the default Clang arguments between the `clang` subcommand,
the `link` subcommand, and the `ClangInvocation` built for C++ interop.
This sets the stage to integrate either pre-built or on-demand runtimes
flags for both of these. However, this PR should have very little
practical difference. The biggest functional change is wrapping the
default arguments in flags to allow unused flags so that we can build a
collection of flags viable across compile and link.
When building in Bazel actions, notably building runtimes, using
absolute paths makes the results non-hermetic and generally less
cache-friendly.
This restructures the code to only form an absolute path as part of the
`bazel run` change of working directory. It also tries to make the API
for doing this a bit more clear by taking the `exe_path` and
transforming it internally.
To support this, this PR also generalizes the `RemovingDir` to support
relative paths. While these can be tricky -- the working directory needs
to not change while they exist -- that isn't a reason to fully exclude
them and they're useful for implementing relative-path runtimes, etc.
Bumps the npm_and_yarn group with 1 update in the /utils/vscode
directory: [qs](https://github.com/ljharb/qs).
Updates `qs` from 6.13.1 to 6.14.1
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/ljharb/qs/blob/main/CHANGELOG.md">qs's
changelog</a>.</em></p>
<blockquote>
<h2><strong>6.14.1</strong></h2>
<ul>
<li>[Fix] ensure arrayLength applies to <code>[]</code> notation as
well</li>
<li>[Fix] <code>parse</code>: when a custom decoder returns
<code>null</code> for a key, ignore that key</li>
<li>[Refactor] <code>parse</code>: extract key segment splitting
helper</li>
<li>[meta] add threat model</li>
<li>[actions] add workflow permissions</li>
<li>[Tests] <code>stringify</code>: increase coverage</li>
<li>[Dev Deps] update <code>eslint</code>,
<code>@ljharb/eslint-config</code>, <code>npmignore</code>,
<code>es-value-fixtures</code>, <code>for-each</code>,
<code>object-inspect</code></li>
</ul>
<h2><strong>6.14.0</strong></h2>
<ul>
<li>[New] <code>parse</code>: add
<code>throwOnParameterLimitExceeded</code> option (<a
href="https://redirect.github.com/ljharb/qs/issues/517">#517</a>)</li>
<li>[Refactor] <code>parse</code>: use <code>utils.combine</code>
more</li>
<li>[patch] <code>parse</code>: add explicit
<code>throwOnLimitExceeded</code> default</li>
<li>[actions] use shared action; re-add finishers</li>
<li>[meta] Fix changelog formatting bug</li>
<li>[Deps] update <code>side-channel</code></li>
<li>[Dev Deps] update <code>es-value-fixtures</code>,
<code>has-bigints</code>, <code>has-proto</code>,
<code>has-symbols</code></li>
<li>[Tests] increase coverage</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ljharb/qs/commit/3fa11a5f643c76896387bd2d86904a2d0141fdf7"><code>3fa11a5</code></a>
v6.14.1</li>
<li><a
href="https://github.com/ljharb/qs/commit/a62670423c1ccab0dd83c621bfb98c7c024e314d"><code>a626704</code></a>
[Dev Deps] update <code>npmignore</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/3086902ecf7f088d0d1803887643ac6c03d415b9"><code>3086902</code></a>
[Fix] ensure arrayLength applies to <code>[]</code> notation as
well</li>
<li><a
href="https://github.com/ljharb/qs/commit/fc7930e86c2264c1568c9f5606830e19b0bc2af2"><code>fc7930e</code></a>
[Dev Deps] update <code>eslint</code>,
<code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/0b06aac566abee45ef0327667a7cc89e7aed8b58"><code>0b06aac</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/64951f6200a1fb72cc003c6e8226dde3d2ef591f"><code>64951f6</code></a>
[Refactor] <code>parse</code>: extract key segment splitting helper</li>
<li><a
href="https://github.com/ljharb/qs/commit/e1bd2599cdff4c936ea52fb1f16f921cbe7aa88c"><code>e1bd259</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/f4b3d39709fef6ddbd85128d1ba4c6b566c4902e"><code>f4b3d39</code></a>
[eslint] add eslint 9 optional peer dep</li>
<li><a
href="https://github.com/ljharb/qs/commit/6e94d9596ca50dffafcef40a5f64eca89962cf34"><code>6e94d95</code></a>
[Dev Deps] update <code>eslint</code>,
<code>@ljharb/eslint-config</code>, <code>npmignore</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/973dc3c51c86da9f4e30edeb4b1725158d439102"><code>973dc3c</code></a>
[actions] add workflow permissions</li>
<li>Additional commits viewable in <a
href="https://github.com/ljharb/qs/compare/v6.13.1...v6.14.1">compare
view</a></li>
</ul>
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This is useful during development, testing, and will also be useful for
a more bazel-integrated build step.
Also clean up the path management when creating runtimes:
- Teach the main runtimes code to handle making a relative path absolute
- Separate out methods for _creating_ a runtimes tree vs. opening an
existing one. Teach the creation path to create intervening directories
as needed. This provides a more useful and less surprising set of
behaviors.
Last but not least, also clean up a bunch of comments in the runtimes
cache code to talk generically about components -- these APIs are no
longer specific to the resource directory.
The fallthrough-based approach was unwieldy and error-prone, and
inherently couldn't support category conversions whose steps don't
follow the fixed order of the `switch` statement.
This avoids us trying to produce a reference to the C++ destructor,
which Clang won't emit because it believes it's unnecessary. This
previously led to link errors.
Fixe #6502.
### Description
Mangling collisions occur when implementing interfaces with generic
parameters. The mangler does not use the specific id, causing the same
symbol `_C[FunctionName].[PackageName]:[InterfaceName].[PackageName]` to
be generated for all of the implementations below:
```carbon
// Generic interface parameters ignored
impl C as I(A)
impl C as I(B)
// Generic class parameters ignored
impl D(A) as I
impl D(B) as I
// Both ignored
impl D(A) as I(A)
impl D(B) as I(B)
```
### Changes
Updated the mangling logic for `SemIR::ClassDecl` and
`SemIR::InterfaceDecl` to include the specific id. Now the mangling
ensures unique symbols for generic implementations using the format:
`_C[FunctionName].[FunctionSpecificId].[PackageName]:[InterfaceName].[InterfaceSpecificId].[PackageName]`.
Closes#6498
Adding the note about recursion because it occasionally comes up, and
I'm thinking it'd be helpful to document why we prefer iterative
algorithms.
Also moves a few long style points to headers so that they're easier to
link (I wasn't sure it makes sense to do to all of "syntax and
formatting", but either way what's remaining is shorter if that _is_
linked for reference).
---------
Co-authored-by: Dana Jansens <danakj@orodu.net>
The dump of a block looks like:
```
(lldb) dump context require_impls_block_id
require_block60000001
- require0: {self_id: inst60000019, facet_type_inst_id: inst6000001D, extend_self: true, parent_scope: name_scope60000002}
```
The dump of an individual RequireImplsId is shown above for `require0`.
Pursuant to recent decisions on #6124, switch `Destroy` to use a
`CustomWitness` for its implementation. Right now this is manufacturing
no-op implementation functions on each lookup, which obviously isn't
ideal but is intended as a first pass. I'm mostly trying to find the
right balance between updating the approach to reflect new decisions,
while still breaking apart work in a way.
The `CoreInterface` logic is intended to build on `CoreIdentifier`
support. We have a number of additional interfaces that require
specialized logic, and that'll extend pretty far with C++ interop, so it
seemed easiest to have a generic function for it. That's what's
replacing the logic inside C++ interop that was doing string comparisons
(which could have already been moved to `CoreIdentifier`, I just missed
it in my first pass).
This adds `CustomWitness` support because the `Destroy` witnesses can be
imported cross-file. `CustomWitness` was previously only used for C++
types, which don't yet support import, which is why that wasn't
previously an issue. The addition of `query_specific_interface_id` is
similarly needed in order to get correct sorting of witness blocks when
imported.
This PR also removes builtin constraint logic (note this is in a
separate commit to help review; it's not a separate PR because it's
difficult to split apart without tests breaking). This had been made
generic with the expectation that destroy, copy, move, and conversions
would all need related support. Under the new decision, we are not going
to do blanket impls and will instead just manufacture a `CustomWitness`
for everything.
A lot of SemIR fingerprints change, but that's probably because the
addition of `Destroy` on core classes is yielding structural changes.
This re-adds the ability to put a space between the id type and number.
In particular, when copy/pasting large hex-encoded id numbers that are
retrieved from `p/x`, such as an array of InstIds, putting a space
between allows faster editing. The space allows the previous command to
be reused, and then to delete the id in a single key command.
### Description
Currently, unqualified access to private members of the base class
compiles without error. This is due to `LookupUnqualifiedName` calling
`LookupQualifiedName` internally with `access_info` parameter set to
`std::nullopt`. This causes `IsAccessProhibited` to return `false`
immediately.
This PR fixes this issue.
### Changes
- Added a check where if the `access_info` is null and the current scope
we are looking is an extended scope (parent), initializes the
`access_info` with `highest_allowed_access` set to `Protected`.
Fixes#6239
The TypeStructure is pretty large, with multiple vectors inside, and we
don't want to do a bunch of mallocs for no reason. There is no need for
a copy ever at this time.
Based on #6517
This delays the conversion of `query_self_const_id` until the actual
witness creation, mainly so that users of `BuildCustomWitness` don't
need to do extra work to ensure `GetFacetAsType` logic is
shared/applied. This is coming up for destroy logic.
* Use generics in more places.
* Use `ref` in more places.
* Use `for` in more places.
* Use a little bit of C++ interop.
* Use an adapter for the `char`-or-EOF result of reading a char instead
of pure `i32`, and use char literals where possible.
---------
Co-authored-by: josh11b <15258583+josh11b@users.noreply.github.com>
We're going to want to track `Destroy` and some other interfaces in ways
similar to what the C++ logic wants. Rather than having both do their
own comparisons with similar values, this tries to centralize logic.
Note the prior
`context.identifiers().Get(interface.name_id.AsIdentifierId())` is also
obsolete due to #6486, this is just replacing it in a single swoop and
avoiding string comparisons as a consequence.
This reduces the function size from ~180 to 133. It removes early outs
once we begin the process of doing an impl lookup so that we cache the
result unconditionally at the end. It removes a second fallback call to
look for a C++ witness by tracking additional information about the
`Impl` that was found (if any) and just do the C++ lookup in one place
afterward.
The impl's body block has to end before we make its ImplDecl
instruction, and the witness instructions come later, so they don't end
up in the body block. Currently they just end up in the enclosing (file,
typically, or class) scope block.
Add a new InstBlockId to Impl for holding witness instructions, and
explicitly insert them into that block. Then include those instructions
into the scope of the Impl for naming, and format them into the Impl
right after the body block.
This is based on #6484
This updates lower/testdata to use _ instead of proper names, in order
to avoid the "unused binding" warnings from #2022 which are being
implemented. These changes do not depend on the implementation which
should make everything easier to review.
See #6460 with part 1 of the implementation. It was split upon request
in order to make reviewing easier, the original state of the PR was
updating hundreds of test cases.
The PR has thus been split, part 2 including test cases changes can be
viewed at
https://github.com/burakemir/carbon-lang/tree/unused_pattern_bindings_p2022_impl_part2
... many tests need to be updated, so it seems best to get those tests
out of the way that are not interesting.
These are not all tests in lower/testdata - a few of them are
interesting in the sense that they cannot use '_' because it leads to
failed redeclaration check. This is exactly the scenario described in
#3763 which requires the 'unused' marker. Those are left untouched here
but are updated in
https://github.com/burakemir/carbon-lang/tree/unused_pattern_bindings_p2022_impl_part2
Allow passing a C++ template as a template template argument to another
C++ template. Does not allow passing a Carbon generic as an argument.
Depends on #6474.
Instead of burying operations to pop the generic stack in
`GetOrAddImpl`, we move them up to handle_impl.cpp in `BuildImplDecl`,
which puts them at the same level as other operations on the generic
stack, like `StartGenericDecl` or `FinishGenericDefinition`.
To do so, we split `GetOrAddImpl` into a few pieces:
- `FindImplId` finds an existing Impl that matches the declaration, or
returns a LookupBucketRef and whether an error was diagnosed instead.
- `AddImpl` takes a fully built `Impl`, makes an `ImplId` for it, and
does additional steps for a new `Impl` verifying it and applying
`extend`.
- `AddImplWitnessForDeclaration` constructs the `Impl`'s witness, which
must be done between two generic steps in order to use the generic's
self specific but also add the witness instruction to the generic.
We group the logic to build the initial table in the definition and to
complete it in the definition together in `impl.cpp`. And we save a
lookup into the ImplStore by passing Impl by reference to
`FinishImplWitness`, as we now do for other similar functions in
`impl.h`.
This is based on #6470.
Instead of naming the root namespace `package` (because it's accessed by
the `package` keyword), change it to use the current package name. Note,
buried in the checksum changes,
`toolchain/check/testdata/package_expr/fail_not_found.carbon`:
```
- // CHECK:STDERR: fail_not_found.carbon:[[@LINE+4]]:16: error: member name `x` not found in `package` [MemberNameNotFoundInInstScope]
+ // CHECK:STDERR: fail_not_found.carbon:[[@LINE+4]]:16: error: member name `x` not found in `Main` [MemberNameNotFoundInInstScope]
```
for:
```
// CHECK:STDERR: var y: i32 = package.x;
// CHECK:STDERR: ^~~~~~~~~
```
I'll leave it to you if you prefer this; the alternative I see is to
just rename `IsCorePackage` to `IsImportedCorePackage`, and/or change it
to a helper that takes a `Context` and does the right thing with
`parse_tree` (which, I need for `Destroy`-related reasons and was my
default approach).
### Description
Fixes an issue where the toolchain accepted abstract types in function
parameters declared with `var`.
### Changes
- Implemented a check for abstract types for function parameters with
`var` binding pattern in `HandleAnyBindingPattern`.
- Added a test case to
`toolchain/check/testdata/class/fail_abstract.carbon`.
**Note:** I did not use `AsConcreteType` like used in `case
FullPatternStack::Kind::NameBindingDecl`. Using it enforces type
completion, thus causing valid signatures such as `fn F[var self: Self]`
to fail.
Also the pre-commit checks fail due to a diagnostic name collision with
`toolchain/check/type_completion.cpp`. Should I add a function that just
checks if the type is abstract to share the diagnostic?
Fixes#6402
This is in anticipation of using the same construct for all
implementations of `Destroy`, as well as other similar use-cases with
language-defined interfaces.
Expose C++ class templates, variable templates, alias templates, and
concepts as callable values in Carbon, and map calls to them into
template-id formation, mirroring how Carbon generics behave. For now,
only type template parameters are supported; non-type and template
template parameters produce a TODO error.
Instead of parsing a complete C++ translation unit and then interacting
with the translation unit further after the fact, delay finishing the
translation unit until we finish the Carbon check phase. This fixes some
issues where we would produce duplicated or incorrect diagnostics at the
end of the C++ translation unit, particularly for unused declarations.
Now we're in control of how we parse the translation unit, also disable
parsing of C++20 modules if the syntax appears within `import Cpp
inline` code.
Keep the same clang parser alive throughout check, and use it instead of
building a new one when parsing macros. This resolves issues where the
translation unit scope was destroyed too early, resulting in unqualified
lookup within macros being unable to find global scope entities.
---------
Co-authored-by: Jon Ross-Perkins <jperkins@google.com>
Explicitly run `RequireCompleteType` for an impl's facet type constraint
in two places:
- For a new `Impl` declaration that is `extend`
- At the start of the `Impl` definition
Stop trying to RequireCompleteType in the definition when constructing
the witness. If we have a rewrite of a name in `.Self`, then we can
construct a full witness, otherwise we defer to the definition.
Now GetOrAddImpl does not need to track `is_definition` anymore, so we
remove a lot of plumbing.
We inline the `AllocateFacetTypeImplWitness` since it has a single
caller and it is just 2 lines, to help improve understanding of the
steps and comments in setting up the impl definition.
Note that this puts the `RequreCompleteType` instruction into the
definition's generic eval block always, avoiding the issue of ensuring
that each generic redecl has the exact same instructions, and forcing
coordination to have `RequireCompleteType` inserted into every
declaration's eval block or none. The result also more closely matches
the design, with the complete type not being required until inside the
definition.
This is part of #6420 which is being split up into a chain of smaller
PRs. It is based on #6469.
Make the `AssignImplIdInWitness` into a `static` helper function since
it's only used inside `GetOrAddImpl`. Restructure the diagnostic for
unused generic bindings to move more logic into the helper, and out of
`GetOrAddImpl` so that it has more clear steps.
This is part of #6420 which is being split up into a chain of smaller
PRs. It is based on #6468.
I'm doing this because I figured it'd be an incremental improvement for
all the operator lookups that we do. Even to the extent that we've
discussed witness caching, I think it'll still apply. It does add one
more step to adding new interfaces (before, you'd just write the string,
now you add it to the def file and reference it).
I'll claim it makes GetClangOperatorKind a lot friendlier to read/edit,
nevermind removing the string comparisons. :)
The orphan rule is defined here:
https://docs.carbon-lang.dev/docs/design/generics/details.html#orphan-rule
**Orphan rule:** Some name from the type structure of an `impl`
declaration must be defined in the same library as the `impl`, that is
some name must be *local*.
Update tests that were running afoul of the orphan rule unintentionally.
Add tests that do violate the rule intentionally and test edge cases.
Propagate error state in an `extend impl` declaration out to the
enclosing scope. We can do this generically in `ApplyExtendImplAs` so we
don't have to do it explicitly in other places.
Collapse `DiagnoseExtendImplOutsideClass` into `ApplyExtendImplAs` as it
had only the one caller and is very small, so this simplifies the code,
making `ApplyExtendImplAs` a clear set of diagnostics. And push the
construction of the SpecificConstant down into `ApplyExtendImplAs` so it
is only constructed if it's needed, instead of constructing it and
throwing it away in error cases.
Ensure any error in the declaration results in the witness being an
ErrorInst so the impl will not be used in impl lookup. This simplifies
some branches by combining them into a single if statement.
This is part of #6420 which is being split up into a chain of smaller
PRs. It is based on #6467.
I need this in a forthcoming PR, to reliably get the `Function` that was
originally used to build a `Call` inst, but even as a stand-alone
change, it seems to nicely improve the textual SemIR.
This extracts the C-string `argv`-like building routine to a more
broadly reusable location. It also sinks the verbose logging logic out
of it and into the relevant runners. In turn, it simplifies the verbose
logging logic significantly.
The biggest functional change is removing the implicit synthesis of a
tool's `-v` verbose flag from the presence of a `vlog` stream. I thought
this would be helpful, but in practice of debugging these layers it has
been more of a hindrance than a help -- I pretty often only want verbose
logging on one side or the other, and we have ways of explicitly passing
a `-v` flag to the underlying tools already. I think my instinct to do
this was just wrong, so rip it out and simplify.
This does add an unused feature -- prepending a prefix of arguments
while building the C-string variant. This isn't used in this PR but will
be used in subsequent PRs and it seemed more disruptive to undo that
logic and then re-do it in a later PR. Let me know if it's too confusing
here.
Assisted-by: Gemini Code Assist
---------
Co-authored-by: Geoff Romer <gromer@google.com>
Rather than run the code for both decl and defn and make it conditional
on not being a definition, put the code in the handler for the
`Parse::ImplDeclId` node, which is handled when there's no definition.
This will help lead us to no longer needing to plumb around
`is_definition` later.
Make some naming consistent to call the reference to an `Impl` as `impl`
instead of sometimes `impl_info`.
This is part of #6420 which is being split up into a chain of smaller
PRs. It is based on #6466.
* Move `Sema` access from `CppFile` into `CppContext`.
* Move the mangle context from `SemIR::File` into `CppContext`.
* Move source location mapping state from `Context` into `CppContext`.
Also factor out the `GenerateAst` function that builds the `CppContext`
and `CppFile` into its own file.
Chandler Carruth
dependabot[bot]
Geoff Romer
Richard Smith
Özgür
Dana Jansens
Jon Ross-PerkinsandDana Jansens
Burak Emir
Ammar AlassalandDana Jansens