Performs a module-scope (global) declaration dependency analysis, so
that out-of-order global declarations can be re-ordered into dependency
order for consumption by the resolver.
The WGSL working group are currently debating whether out-of-order
declarations should be included in WebGPU V1, so this implementation
currently errors if module-scope declarations are declared out-of-order,
and the resolver does not currently use this sorted global list.
The analysis does however provide significantly better error diagnostics
when cyclic dependencies are formed, and when globals are declared
out-of-order.
The DependencyGraph also correctly now detects symbol collisions between
functions and types (tint:1308).
With this change, validation is duplicated between the DependencyGraph
and the Resolver. The now-unreachable validation will be removed from
the Resolver with a followup change.
Fixed: tint:1308
Bug: tint:1266
Change-Id: I809c23a069a86cf429f5ec8ef3ad9a98246766ab
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/69381
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
There's no need for the ScopeStack to include 'global' information. This
is easily obtainable from the element type.
Replace the get-by-reference, with a simpler return value.
Change-Id: Ic6f4c0f656a2019417d68ffb3fe85ba8343ad15e
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/68403
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: James Price <jrprice@google.com>
Allows symbols to be used as keys for std::unordered_map and std::unordered_set.
Replace all map / set use of uint32_t for Symbol, where applicable.
Change-Id: If142b4ad1f0ee65bc62209ae2f277e7746be19bb
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/37262
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
This CL converts the ScopeStack to use a Symbol instead of a string as
the accessor.
Change-Id: I2893003bc119c86c4822732ef36c7393e4be1e79
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/36580
Reviewed-by: Sarah Mashayekhi <sarahmashay@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
Auto-Submit: dan sinclair <dsinclair@chromium.org>
We've been using |blah| in various places to markup code, however this is not doxygen markup. So instead:
* If the code links to a parameter, use `blah`.
* If the code links to a member field, use #blah.
* If the code links to a method use blah().
* If the code is somewhere unlinkable use `blah`.
Change-Id: Idac748a4c2531b5bae77e1a335e3d3ef6fab48b6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/33787
Commit-Queue: dan sinclair <dsinclair@chromium.org>
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: David Neto <dneto@google.com>
This CL adds implementations and tests for these validation rules:
v-0011: Global variable names must be unique
v-0013: Variables declared in a function must be unique between that function and any global variables.
v-0014: Variables declared in a function must have unique names
Bug: tint 6
Change-Id: I793485c981f67abc6a3dc81d35be743ccc18db5b
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/26480
Reviewed-by: dan sinclair <dsinclair@chromium.org>
This Cl extracts the variable stack from the SPIR-V builder and makes it
available as a general class.
Change-Id: I3505d7cc4ec34f78bbc3360b064fa99479fd97d6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/18701
Reviewed-by: David Neto <dneto@google.com>
Ben Clayton
dan sinclair
Sarah Mashayekhi