The reason being that some tests called parse() twice, which will silently destruct the first parser.
Once the `Module` owns the AST nodes, the second call will end up deleting all the AST nodes. Tests would then perform use-after-free for the AST nodes belonging to the first parser / module.
There's no reason why the unique_ptr can't be returned, which is cleaner overall.
Bug: tint:335
Change-Id: I7ff2e9777a7ebeb76702f806294fe4c2c49bd7c9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/33241
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
This is a minimal effort to fix up the code. There's substantial code
cleanup which can now be done, which is done in the next change.
Bug: tint:322
Change-Id: Iafcf5e814837d9534889e8c21333de4931a19cfa
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/32864
Commit-Queue: dan sinclair <dsinclair@chromium.org>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
For values of type T* and std::unique_ptr<T>.
This allows us to replace all occurances of `res.value->member` with: `res->member`, which also asserts that `res` is not in an error state.
Brings the verbosity back down to pre-expect and pre-maybe levels.
Bug: tint:282
Change-Id: Ib00018affca53ac5e71ee2140e7e0cd607b83715
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/32141
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
And use it for the non-ParserImpl::expect_xxx() methods.
Another step towards supporting multiple error messages, as the caller can now test to see if the specific call errored, or didn't match, instead of using a global error state.
Makes reading the control flow conditionals a bit easier too.
Change-Id: Ie8627b8499ec9079167965da2a566401cd6bd903
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/32102
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
`expect_block()` takes a start and end token, along with a function to parse a lexical block body.
This reduces code, keeps error messages consistent, and also gives us a future place to try resynchronising the parser so we can have more than one error emitted.
`expect_paren_block()` and `expect_brace_block()` are convenience helpers for providing the start and end tokens for common block types.
Bug: tint:282
Change-Id: I432a0301727b131a6fce875687b952dfc6889a4b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/31736
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Block statements will now be parsed in ParserImpl::statement()
Change-Id: I28f63d4a53c85c0306c57df545f78b4562c6ea7b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/27262
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
This CL removes the KillStatement from the AST and replaces all test
usage with DiscardStatement.
Bug: tint:169
Change-Id: Ie68dd3cdd54056f144d10506f05cc1f6903d1cda
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/25605
Reviewed-by: David Neto <dneto@google.com>
This CL adds parsing of the `discard` keyword to the WGSL reader.
Bug: tint:167
Change-Id: Iff91076a65715131f5f0f9bd1c8b6bf3a37cd3c7
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/25604
Reviewed-by: David Neto <dneto@google.com>
The `unless` statement was removed from the WGSL grammar so remove it
from Tint.
Change-Id: I31a185f5c5e3e88b667caea1c9a88aee80c0b810
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/22581
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
This CL removes the conditional forms of the break and continue
statements as they are no longer in the WGSL spec.
Change-Id: I46224d6cb5ce706cfc95d35ab0a4eea46abf62a9
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/22580
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
The name conditions isn't quite correct for the case statement. This CL
updates the code to use selectors instead of conditions.
Change-Id: I98b8050b11e2328f97e4443469572ab47d7c1555
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/22520
Reviewed-by: David Neto <dneto@google.com>
The NOP command was added for complete SPIR-V bijectivity which is no
longer a goal of WGSL. The NOP command has been removed from the spec,
so remove from Tint.
Change-Id: Ic640d9d3b987a19668dc169ff549444921c5bbb8
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/22160
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
This CL removes the regardless statement and turns `regardless` into a
reserved word.
Change-Id: I50c521111b90dbadddaeb36674e8c40205186076
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/19361
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Match the more common usage for the expression type.
Bug: tint:37
Change-Id: Ia5d48a0444742ec4e304ea1036e499b3d7cad682
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18981
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
This CL renames VariableStatement to VariableDeclStatement to make it
clearer what it was modeling.
Bug: tint:25
Change-Id: Idd0d27fad7cc402f286e1abad74092c9d1961d91
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18341
Reviewed-by: David Neto <dneto@google.com>
This Cl updates the names of the initializer expressions to be clearer.
* InitializerExpression -> ConstructorExpression
* ConstInitializerExpression -> ScalarConstructorExpression
* TypeInitializerExpression -> TypeConstructorExpression
Bug: tint:26
Change-Id: Ib046497f589cc65d1d64bc172015588348feeffe
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18340
Reviewed-by: David Neto <dneto@google.com>
This CL moves all test files to the anonymous namespace.
Change-Id: Ie5ae0efe907c03eeb441e90f31c976844172b594
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17900
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
This Cl replaces the TypeManager singleton with a context object.
Bug: tint:29
Change-Id: Ia662709db1b562c34955633977ce4363f28f238e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/17780
Reviewed-by: David Neto <dneto@google.com>
