The measurement is the part worth keeping: adding an offset to a moved
subtree's stored regions drifts linearly and without bound, so the fraction
path is there for accuracy, not generality. `tests/drift.rs` on the Iris
branch pins it.
Built-in alignment and size moves onto #18 rather than waiting for it, with
ownership agreed -- properties on the `region_node` mechanism, a declared
length winning per axis, and a size rule that carries min/max/clamp so a
clamp is resolved where the box is decided instead of by a widget reading
its own pixels.
Rewrites the opening as state rather than a chronicle of the last few
commits, and gives the parked rule its own section: what the owner asked
for in her words, the half that is written and works with the code in
it, the four ways of asking that were measured and what each did, the
seed that shows it most clearly, and the design question underneath --
which is the same one holding OrthoSize. Also folds the declared-length
rule into the invariants, brings the vocabulary to leftover, says the
suite is eight seconds and must stay that way, and writes out the image
replay rather than pointing at a file in /tmp.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Only rel doubles: apply_rest turns rest into the whole box and px
coincides. Aligned and Scroll honour a hint the same way Span does, so
all three double it. Also corrects the note about a fractional hairline,
which fails because a fraction is a fraction of its own box rather than
through any rounding, and records that a span whose shares run out walks
its children backwards instead of overflowing forward.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The text reference render is not byte-identical after all: a declared
rel or rest length is applied by the span and then again inside SetSize,
so .width(rel(0.5)) draws its child at a quarter. Also replaces the
example that measured one-pixel lines with what the tests now say, since
a span short of room overlaps its fixed lengths rather than collapsing
them.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The tabs difference does not reproduce at f61e893 against upstream/main
built in its own worktree, so nothing is waiting on a decision. Records
the instruction counts, frame times and memory taken today rather than
mid-branch, and what a one-pixel line and a one-pixel gap do under the
chain, which is the question the pixel difference was really about.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A fresh session had no way to learn the handoff existed: AGENTS.md named
only docs/PLAN.md, and the filename tied the document to one piece of work.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
iris-ai
