tree a518a25ea03b895e35809189bddcd2838f29f095
parent a291fc1e7f315cdf0c1e7ba05dce4c6a99d5f89d
author dan sinclair <dsinclair@chromium.org> 1598367513 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1598367513 +0000

[wgsl-parser] Set max recursion depth on const_expr

The `const_expr` can recurse into itself if there are type declarations
inside the const_expr (e.g. vec2<f32>(f32(1.0), f32(2.0))). Currently
there is no limit on the amount of recursion which can be triggered.

This CL sets a limit of 128 nested type declarations at which point an
error will be emitted.

Bug: chromium:1112144
Change-Id: Ifae45034dc9de35aed78ba8eddf584a46c7a55ce
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/27340
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>