V0.3.0/refactor - #114
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- closed #109 - closed #110 - closed #111 Add ergonomic shorthand notation for constructing Datalog rules, avoiding the verbose Rule.new/Atom.new/Term.var ceremony. This introduces the Prolog-inspired convention where uppercase atoms become variables, :_ becomes a wildcard, and lowercase atoms/other values become constants. New APIs: - Program.add_rule/3,4 — accept {relation, [terms]} tuples for heads, {:positive/negative, {relation, [terms]}} for body literals, and {:op, args...} tuples for constraints - Term.from/1 — convert shorthand values to Term.t() - Atom.from_tuple/1 — construct Atom from {"rel", [terms]} tuple - Constraint.from_tuple/1 — construct Constraint from operator tuples ({:neq, :A, :B}, {:add, :X, :Y, :Z}, {:is_integer, :V}, etc.) Before: Program.add_rule(program, Rule.new( Atom.new("ancestor", [Term.var("X"), Term.var("Y")]), [{:positive, Atom.new("parent", [Term.var("X"), Term.var("Y")])}] ) ) After: Program.add_rule(program, {"ancestor", [:X, :Y]}, [{:positive, {"parent", [:X, :Y]}}] ) Constraint shorthand examples: {:neq, :A, :C} → Constraint.neq(Term.var("A"), Term.var("C")) {:gt, :S, 100_000} → Constraint.gt(Term.var("S"), Term.const(100_000)) {:add, :Balance, :Limit, :Total} {:is_integer, :V} → Constraint.type_integer(Term.var("V")) {:starts_with, :E, "admin."} {:member, :Dept, [:engineering, :infra]} The struct-based Program.add_rule/2 with Rule.new remains available for full control over term types. Both forms can be mixed in the same program. Updates across codebase: - All livebook examples (quickstart.livemd, examples.livemd, examples.exs) converted to shorthand notation - README Quick Start updated to showcase shorthand - Program moduledoc rewritten with shorthand examples - CHANGELOG.md updated with [Unreleased] section - Roadmap updated: v0.3.0 = shorthand, v0.4.0 = Sigil DSL (bumped from v0.3) - 38 new tests for Term.from/1, Atom.from_tuple/1, Constraint.from_tuple/1, and Program.add_rule/3,4 shorthand All 639 tests pass. Credo --strict clean. Dialyzer clean. mix docs --warnings-as-errors clean.
- mix.exs: version bumped 0.2.0 → 0.3.0 - mix.exs: livebooks added to extras for Hex docs - README.md: dependency ~> 0.3.0, livebook links in Documentation section, roadmap updated with rename note - CHANGELOG.md: [Unreleased] → [0.3.0] - 2025-06-19, added ### Changed section documenting Result → Knowledge, query → materialize, telemetry renames, error passthrough
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