Brummel
19dc42f5ca
The first formal-links milestone shipped clause-5 + 8 links across the
existing file layout. Browsing surfaced that file-only granularity is
only as precise as the file boundaries — three files mixed two or
three navigation targets under one address, so the 8 links could not
multiply without ambiguity. This commit fixes the substrate, then
applies the sweep the original milestone deferred.
Splits (each extracts an already-self-contained section into its own
file so links land on the topic, not the parent doc's TOC):
contracts/typeclasses.md
→ +contracts/prelude-classes.md (Eq/Ord/Show ships, polymorphic `print`)
→ +contracts/method-dispatch.md (5-step dispatch rule, candidate index)
contracts/memory-model.md
→ +contracts/language-constraints.md (the 4 binding constraints
making RC sound without a
cycle collector)
models/authoring-surface.md
→ +models/prose-projection.md (Form-B / `ail prose` / merge-prose)
Each new file enters design/INDEX.md as its own row (three contracts
share show_no_instance_e2e.rs / uniqueness.rs as ratifying tests;
prose-projection is a model). Two pre-existing links rebind to the
new topic-files (memory-model.md → method-dispatch.md;
float-semantics.md → prelude-classes.md).
Link sweep: 8 → 88 formal Markdown links over 23 files. Every file
in design/contracts/ + design/models/ now has at least one outgoing
link; the tree is fully connected. Links are file-relative
`[label](path)` per the established convention, fenced code blocks
are skipped (a `](` inside ```jsonc``` is literal text), the durable
tier (design/ + crates/ + runtime/) is enforced by clause-5.
Tests:
- design_index_pin.rs (5/5 clauses): clean-cut, INDEX resolution,
ratifying-test resolution, no decision-record prose in contracts/,
body links durable + resolving.
- docs_honesty_pin.rs (5/5): one assertion rebinds from typeclasses.md
to prelude-classes.md (where the gated sentence now lives);
design_corpus widens to include the 4 new files so the Wunschdenken
/ doc-archaeology sweeps continue to cover everything that used to
live in the parents.
No spec/plan/journal for this batch — interactive collaboration after
the milestone closed; the user gated the splits explicitly before the
sweep.
985 B
Effects — pure core + algebraic effects
Decision 3: pure core language + algebraic effects
The default is total, pure functions. Effects are declared as a set in the
function type: (Int) -> Int ![IO]. The effect set is a
flat, unordered, closed set of effect names, unified by set-equality —
there is no effect row variable; a signature lists exactly the effects
its body may perform. The schema-level effect-set field on Type::Fn
is documented in Data model; what is
currently in scope vs. excluded lives in
scope boundaries.
In the MVP only the effect IO is wired up (its sole op is io/print_str).
Diverge (for non-termination) is reserved as an effect name but is
unimplemented — no op, no codegen, no checker injection — in the same
sense Decision 4 reserves refinements.
This is the most important LLM property: when I read a function, I can trust its signature without reading the body.