A full sweep of #19, and the first review off48e04e. `Display for LayoutLen` leaves out every part that is zero, so `LayoutLen::ZERO` printed as the empty string -- and `Debug` forwards to `Display` since the last commit, so the four `assert_eq!`s in `cases/deferred.rs` print nothing where a request of zero is, and `scenario::describe` prints a `.width(0)` rule as `-`, which is what it prints for a widget that has no rule at all. That file exists so a tree a fuzzer found can be written out by hand; a value it cannot say is a hole in the one thing it is for. `Fixed::ceil_from_f32` took `next_up` of a `from_f32` that had already clamped, and `next_up` wraps, so a measurement past the top of the grid came back as the bottom of it. `from_f32` clamps deliberately because a float has further to come from; the ceiling is the other way in from a float and now holds to the same rule. The check goes beside the one `from_f32` already had. `Moves::depth` walked the move chain a second way, with its own copy of `CHAIN_LIMIT` and without the assertion `walk` makes; it is `walk` now, so the CPU counts the chain in one place and the shader's constant reaches both. `Harness::set_len` said it set a length "the way `.width()` sets one" and wrote the whole rule instead, dropping any bound beside it. A case that set a bound and then a length would have passed with no bound at all. Three rigs each spelled "one seed, or a range of them" by hand -- the class the eleventh sweep closed for reading a parameter and not for this. There is one `rig::seeds` now. `cases/deferred` was last in `suite.rs`'s otherwise alphabetical list. `diag::outside` writes out `AxisHolds::contains`'s four clauses to say which one refused a reuse; a debug assertion now catches a fifth clause added there and not here, which would leave a refusal counted and unexplained. `Sow::bound`'s comment recorded an open hole reached by seeds 4 and 196 at depth 5 -- but `generated.rs` says seeds stopped naming those trees when the leaves grew images, and 600 depth-5 trees over all sixteen cases agree warm against cold with every bound a fraction. The comment says what is true now and why the generator still grows pixels. Format, workspace clippy under -D warnings with and without layout-diagnostics, 208 ordinary and 212 diagnostic tests (207 and 211 before, plus the one this adds), and the cold dump byte-identical tof48e04eacross all 34,986 boxes. The three seed scans were not run: nothing here can move a box, which the dump confirms. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
26 lines
1.1 KiB
Rust
26 lines
1.1 KiB
Rust
//! What the rigs need and none of them should spell its own way. Every
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//! fuzzer and measurement here is run by hand with its parameters in the
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//! environment, so one reader is shared rather than copied into each target.
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/// A rig's parameter from the environment, or its default. A switch is
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/// `env("NAME", 0_u8) != 0`, so `NAME=1` turns it on.
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pub fn env<T: std::str::FromStr>(name: &str, fallback: T) -> T {
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std::env::var(name)
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.ok()
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.and_then(|value| value.parse().ok())
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.unwrap_or(fallback)
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}
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/// The seeds a scan runs: the one `one` names on its own, or `1..=` the
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/// count `many` gives. One seed replaces the range rather than narrowing
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/// it, which is how a tree a scan failed on is run again by itself.
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// This module is compiled into each rig target separately, so a helper the
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// measurement rigs have no seeds to choose is dead code in those builds.
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#[allow(dead_code)]
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pub fn seeds(one: &str, many: &str, count: u64) -> Vec<u64> {
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match std::env::var(one).ok().and_then(|seed| seed.parse().ok()) {
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Some(seed) => vec![seed],
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None => (1..=env(many, count)).collect(),
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}
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}
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