This is a more neutral term for an unassigned enum value.
Change-Id: Ic69d912472f26fd8a2c8348281b27edfcc145eab
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/105480
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Emits all the enum info from the single-source-of-truth `intrinsics.def` file
Change-Id: Ib9170a2337597d4d81983c446d50582b518c6d71
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/105329
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
If the builtin doesn't parse, then generate an error message that includes the list of possible values, and a suggestion if there was a close match.
Fixed: tint:1629
Change-Id: I8f575a2ffcef2af308b9566ae7832702e76085ef
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/105323
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
The `type_decl` term in the spec was updated to `type_specifier`. This
CL updates Tint to match.
Bug: tint:1633
Change-Id: I264ae78a4b09c3c69d8673e24fe4f60975539b8f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/104421
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
This CL updates the internals to use AddressSpace instead of the old
StorageClass name.
Bug: tint:1404
Change-Id: Iecc208e839453437f4d630f65e0152206a52db7e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/104420
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
With the old grammar elements removed, rename the new elements and
drop the `maybe_` prefixes.
Bug: tint:1633
Change-Id: Iafe223546f8af1ddd8a4b60572a106160a226b72
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99921
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL moves all the grammar rules to use the new
`maybe_expression` rules. All of the old `expression` rules
are removed.
Bug: tint:1633
Change-Id: I29637a4c6fcd200650a2b57011b6539c66be942a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99920
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL updates the `type_decl` and `primary_expression` rules
to the new WGSL grammar.
Bug: tint:1633
Change-Id: Ifc457e01f43fe33e083fc8f9e316fdd02bfd87c3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99881
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Currently when peeking, if there is placeholder then anything after
the `peek(0)` will be off by 1 position as the placeholder will
end up included in the index count.
This CL updates the peek routine to correctly skip over any
placeholder element between the current index and the requested
peek token.
Bug: tint:1633
Change-Id: Idd2905cc3b9c0a0dcbbcc94c0f6dd349b569ec3e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99900
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL updates the `expression` grammar element with the WGSL
spec.
Bug: tint:1633
Change-Id: Iad1f16f5d73cf4d9ba53ef638aaad73418712403
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99822
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL adds the `relational_expression.post.unary_expression` grammar
rule into the WGSL parser. A `shift_expression` helper and a
`relational_expression` helper are also added.
Note, the two helpers have `maybe_` as name prefixes. This will be
dropped when the old parser path is removed which current uses the
other versions of those names.
Bug: tint:1633
Change-Id: I6431edfe8fdb9f5a6eea804a7d6fa9a4982ea04e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99761
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL adds the `shift_expression.post.unary_expression` grammar
rule into the WGSL parser.
Bug: tint:1633
Change-Id: I833ddb05399afe8c792bd0b1abf3eda7f1d114e7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99760
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
This CL adds the `element_count_expression` and the requisite math
expression parsing to support along with tests.
Bug: tint:1633
Change-Id: I54ab37339754217f417f69dcd6140adbc14cbf83
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99560
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL adds the `bitwise_expression.post.unary_expression` parsing
into the WGSL parser.
Bug: tint:1633
Change-Id: Idaf1a413662d1c10d9d9f25d3b35ed5323b8f883
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99383
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Attributes were being parsed, constructed, then thrown away, when declared on a structure. This was triggering the unreachable-AST node seatbelt in the Resolver.
Replace the confusing `Maybe<bool>` return types with `Maybe<Void>`. The boolean return value was not actually being used, as logic was (correctly) using the `Maybe` error / matched state.
Bug: chromium:1352803
Change-Id: I39e4994e3e9b13201ba4f4e4820cd4b2f46e93c5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99100
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
This CL adds the `optionally_typed_ident` construct into the WGSL
parser and uses it where the conditional was used previously.
Bug: tint:1633
Change-Id: I15eaf838792208f56b4ddebd950086f14c8962b3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99382
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL converts the `assignment_statement` to
`variable_updating_statement`. Some more test cases are added
around the phony assignment and usage of compound operators.
The `lhs_expression` and `core_lhs_expression` are converted to
return `Maybe`s.
Bug: tint:1633
Change-Id: Iaed6373e2f202609adf341b57dc9027e5a04af34
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99380
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL updates the WGSL parser to have a `core_lhs_expression`
and a `lhs_expression` grammar rule. The rules are not used anywhere
yet, but are standalone so are added with tests.
Bug: tint:1633
Change-Id: I87bdaefeb06be637f72a7e6fa72ce2b6298c7bb7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99240
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL updates some of the names used in the WGSL parser to match
the grammar rules in the spec.
Bug: tint:1633
Change-Id: I489e1c6a945bdd6063d400cfdbd87aa81a97c5f0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/99200
Kokoro: Kokoro <noreply+kokoro@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This Cl spits the `expect_variable_ident_decl` apart to only accept
the `variable_ident_decl` grammar element. A
`expect_ident_or_variable_ident_decl` is added for the ident optional
version and a helper used by those two methods.
This makes it a lot clearer at the caller side how the calls relate
to the grammar.
Bug: tint:1633
Change-Id: I50aa4852926ff217129fe728e434255ed008da61
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98661
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
This CL syncs some more grammar changes into Tint. The `break if`
statement is stubbed out to be completed later.
Bug: tint:1633
Change-Id: I9223278288383698f9cdecc1ae854720cc55dd2c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98660
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
This CL updates a few names in the statement element to match the
spec. The `body_stmt` is now `compound_statement`.
Bug: tint:1633
Change-Id: I23a622fc8587641d3b6c5ff2641f29a3471fa4e1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98280
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
This CL inlines some strings which were listed at the top of the
parser. In general, we've inlined the strings there were just a few
which ended up being declared at the top of file.
The `attribute` rule is re-ordered to sort the attributes in
alphabetical order so they're easier to locate.
The `expect_storage_class` rule is renamed `expect_address_space`
Bug: tint:1633
Change-Id: Ie659742b9758142b6971493be6d0d62a092999b9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98262
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL pulls the interpolation sample and type name parsing out
to methods to closer match the WGSL spec. This will also make it simpler
to convert to using generated parsing for these strings if desired.
Bug: tint:1633
Change-Id: Ib7b663a3eeef7f3ecacae8bf160d41641b5474f1
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98260
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
The parser skipped over the `expression` node and went straight
to `logical_or_expression`. This CL adds `expression` which just
calls `logical_or_expression`. This will allow moving the rest of the
parser to more closely match the WGSL spec.
Bug: tint:1633
Change-Id: I994a186ea50f3b3196c9ded77d9c478cb08b019b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98220
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
This Cl updates the parser implementation of the `global_decl` rule.
The `type_alias` rule is renamed to `type_alias_decl` and the `struct`
parsing is moved out of the synchronization to `;` code as a `struct`
no longer has a trailling `;`.
Bug: tint:1633
Change-Id: I44b25035cbe0ea0963ec73400986205e1623060e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98065
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
This CL adds the `global_directive` rule into the WGSL parser and
moves `enable_directive` under that rule. This matches the WGSL
specification.
Bug: tint:1633
Change-Id: I48b809cd1d2f2ffa6ec0d83474c716d4015e1dea
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98041
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This is what it is called in the spec, and avoids confusion with the builtin functions.
Change-Id: I5cd4a250351c10928e90b640a8c68c7834bcf2a0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/97200
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
This CL removes the copies of the `Source` and, in some cases, the token
name in the parser implementation.
Change-Id: I91c0797244a19fa5a36d39029d02823a20cee0cd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/97072
Reviewed-by: Ben Clayton <bclayton@chromium.org>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
This CL updates the parser and lexer to pre-parse the token list and
then the parser works off the list of tokens. This allows the parser to
work with references to the tokens and not have to worry about them
going stale.
For any splittable token a placeholder token is injected after the
token. If the token ends up getting split the placeholder is overwritten
with the new type.
Change-Id: I5a8ccca15d8c14b5027df7dd2734be6753e46fa9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/97070
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This CL renames paren_rhs_stmt to match the new spec name of
paren_expression.
Bug: tint:891
Change-Id: I040137d8264916ce2fecce90edad97f622be354d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96940
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Enable the parsing of 'const'.
Warn on use of module-scope 'let', and automatically replace with 'const'.
Fixed: tint:1580
Change-Id: I214aabca80686dc6b60ae21a7a57fbfb4898ea83
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/93786
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
The WGSL specification changed so that the enforcing of
initializers being only const-expr is no longer done by the
grammar. This is change is required to allow for 'const' expressions to
reference each other.
Bug: tint:1580
Change-Id: Ia95b6a0bc86ce391a38f4248f20898dd9a6cf27f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94683
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>
This enables the WGSL parsing of 'const' for only tint_unittests,
allowing code to be split up into smaller chunks for review.
Once all the logic is submitted to handle 'const', the test-only
flag will be removed, and 'const' will be enabled for production.
Bug: tint:1580
Change-Id: I3189b6bd15445ecc3fa1cd6f568885e7ba3c91c0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/94680
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Add the new classes:
* `ast::Let`
* `ast::Override`
* `ast::Parameter`
* `ast::Var`
Limit the fields to those that are only applicable for their type.
Note: The resolver and validator is a tangled mess for each of the
variable types. This CL tries to keep the functionality exactly the
same. I'll clean this up in another change.
Bug: tint:1582
Change-Id: Iee83324167ffd4d92ae3032b2134677629c90079
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/93780
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This is currently identical to ast::VariableList, but once we break
ast::Variable up, this will become a different vector type.
Bug: tint:1580
Change-Id: Ib2db5772996a63cd1989e36f1034dc1fbd3b371a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/93601
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
This CL updates the clang format files to have a single shared format
between Dawn and Tint. The major changes are tabs are 4 spaces, lines
are 100 columns and namespaces are not indented.
Bug: dawn:1339
Change-Id: I4208742c95643998d9fd14e77a9cc558071ded39
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87603
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Instead of using an `if` node that has a list of `else` statements,
make each `if` statement have a single optional `else` statement,
which may itself be an `if` statement (or just a block statement).
This better matches the WGSL grammar (now that we have removed
`elseif`), and simplifies various pieces of code that handle these
statements.
Change-Id: Ie4272f1422224490ac598a03aa8b4dd00ba03010
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87940
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: James Price <jrprice@google.com>
These suffixes existed because the GN build errored when there were two files sets with the same name (ast + sem).
This is no longer required as the GN build splits these into two separate targets.
Change-Id: Ib451da33a5f4aa5c867cb99419dd252766dc3daa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/88308
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
In this CL the enable directive is implemented.
1. Add AST node for enable directive, assign a ExtensionKind (enum) for
each supported extension.
2. Use an unorder_set in ast::Module to record all required extensions'
kind.
3. Provide inspector methods for getting names of used extension, and
getting all used enable directives' extension names and location.
4. For different writer, the extension nodes are handled in different
ways. MSL and HLSL writers will just ignore the extension nodes, while
SPIRV and GLSL writers will emit corresponding code.
5. Implement unittests and end2end test for enable directive and
inspector, using a reserved extension name `InternalExtensionForTesting`.
Bug: tint:1472
Change-Id: I40cb4061554deb477bc2005d7e38c9718385f825
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86623
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
This PR condenses the namespaces in the tint/reader/wgsl folder.
Change-Id: Ic9f668402f10f02eecf5a8eaf0625558957391d9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86032
Auto-Submit: Dan Sinclair <dsinclair@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Dan Sinclair <dsinclair@chromium.org>
Implemented in both the reader and writer with E2E tests. Other
backends detect compound assignment and ICE for now.
Bug: tint:1325
Change-Id: Ie3f51e03627a38b12bd1513c4bcf1bebb3282863
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/74363
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Use of semicolons is still supported, but deprecated.
Also updates the parsing methods for structures to better match the
WGSL grammar.
Bug: tint:1475
Change-Id: I7675ba42c13f91080b0ac173c352e0092021f80b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/84380
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: James Price <jrprice@google.com>
We still use the StrideAttribute AST node in the SPIR-V reader for
strided arrays and matrices, which are then removed by transforms.
The WGSL parser no longer has to handle attributes on types.
Bug: tint:1381
Change-Id: Ifa39575ce207d3fdfcbef7125fe6a3686fad5f20
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/83963
Reviewed-by: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
