This PR makes `@[cbv_opaque]` unconditionally block all evaluation of a
constant
by `cbv`, including `@[cbv_eval]` rewrite rules. Previously,
`@[cbv_eval]` could
bypass `@[cbv_opaque]`, and for bare constants (not applications),
`isOpaqueConst`
could fall through to `handleConst` which would unfold the definition
body.
The intended usage pattern is now: mark subterm-producing functions
(like
`DHashMap.insert`) as `@[cbv_opaque]` to prevent unfolding, and provide
`@[cbv_eval]` theorems on the *consuming* function (like
`DHashMap.contains`)
which pattern-matches against the opaque subterms.
This PR adds `at` location syntax to the `cbv` tactic, matching the
interface of `simp at`. Previously `cbv` could only reduce the goal
target; now it supports `cbv at h`, `cbv at h |-`, and `cbv at *`.
`cbvGoal` is rewritten to use `Sym.preprocessMVar` followed by `cbvCore`
within a single `SymM` context, sharing the term table across all
hypotheses and the target. The old `cbvGoalCore` (which reduced one side
of an equation goal at a time) is replaced by a general approach that
reduces arbitrary goal types and hypothesis types, with special handling
for `True` targets and `False` hypotheses. `cbvDecideGoal` is updated to
use the extracted `cbvCore` as well.
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---------
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This PR adds pre-pass simprocs `simpOr` and `simpAnd` to the `cbv`
tactic that evaluate only the left argument of `Or`/`And` first,
short-circuiting when the result is determined without evaluating the
right side. Previously, `cbv` processed `Or`/`And` via congruence, which
always evaluated both arguments. For expressions like `decide (m < n ∨
expensive)`, when `m < n` is true, the expensive right side is now
skipped entirely.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This PR sets up the new integrated test/bench suite. It then migrates
all benchmarks and some related tests to the new suite. There's also
some documentation and some linting.
For now, a lot of the old tests are left alone so this PR doesn't become
even larger than it already is. Eventually, all tests should be migrated
to the new suite though so there isn't a confusing mix of two systems.
