tests/public_surface.rs reads the library source the way a consumer sees it
and compares every pub item with its signature, pub fields, derives, impl
headers and every path-looking string literal to tests/public_surface.txt.
A new pub static or pub fn under any name, a derive onto Grant, or a root
read from another path fails it. It replaces the three compile_fail
doctests that named with_root, TEST_ROOT and control_root. Dev-dependencies
syn, quote and proc-macro2, already in the graph through serde's derive.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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