aaltshuler d4b21ce4eb feat(compiler): parse + typecheck undirected traversal — $a <edge> $b ... iss-gq-undirected-traversal, the Expand-internal design (no plan-level Union; unblocked from iss-744/579): the grammar gains an undirected_edge alternative in the traversal rule (angle brackets are collision-free — comparisons live in the structurally separate filter production), the AST Traversal carries `undirected`, Direction gains `Both`, and typecheck resolves undirected patterns to Both after the new T22 rule: undirected requires a same-endpoint-type edge (an asymmetric edge is well-typed in at most one orientation, so the form is rejected with guidance to use the directional pattern). Lowering passes Both through; the reverse-expand orientation flip is a no-op for a symmetric traversal. Bounds ({min,max}) and not{} compose unchanged. Direction has no serde derives and IR never crosses a wire — no compatibility surface. Parser/typecheck tests cover the bare, bounded, inside-not forms, Both resolution on Knows (Person->Person), and the T22 rejection on WorksAt (Person->Company).		2026-07-06 00:59:09 +03:00
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src	feat(compiler): parse + typecheck undirected traversal — $a <edge> $b	2026-07-06 00:59:09 +03:00
Cargo.toml	chore(release): bump version to 0.8.0 (#313)	2026-06-29 12:38:24 +02:00