James Price 4cc4315d6c Allow array size to be a module-scope constant ... Change ast::Array to use an ast::Expression for its `size` field. The WGSL frontend now parses the array size as an `primary_expression`, and the Resolver is responsible for validating the expression is a signed or unsigned integer, and either a literal or a non-overridable module-scope constant. The Resolver evaluates the constant value of the size expression, and so the resolved sem::Array type still has a constant size as before. Fixed: tint:1068 Fixed: tint:1117 Change-Id: Icfa141482ea1e47ea8c21a25e9eb48221f176e9a Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/63061 Auto-Submit: James Price <jrprice@google.com> Kokoro: Kokoro <noreply+kokoro@google.com> Commit-Queue: James Price <jrprice@google.com> Reviewed-by: Ben Clayton <bclayton@google.com>		2021-09-02 13:49:59 +00:00
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mat2x2	Allow array size to be a module-scope constant	2021-09-02 13:49:59 +00:00