0e08f65016
- SCI bootstrap complete: all 9 SCI source files load (317 forms, 0 failures) - prefer-method/remove-method/remove-all-methods promoted to special forms - eval special form (interpreter + compiler) with eval-test.janet - lazy-cat macro with structural equality tests in lazy-test.janet - Janet-native interop via . special form on tables/structs: field access (. obj :key), method calls (. obj method args...) fn* form compilation support, .- reader sugar interop-test.janet with 7 test sections (14 assertions) - New core bindings: with-meta, var-dynamic?, load-string - ^:dynamic def handler, core-str nil handling, core-meta for with-meta - 7 new CLJS ported test files: cljs-port-6 through -10, cljs-core-test, cljs-collections-test - test-sci-runtime.janet verifies SCI namespaces/types/Var/IBox/IVar - 317/317 tests pass, 0 failing scripts, 440+ assertions across 31 test files - README updated with Janet interop documentation
69 lines
2.9 KiB
Text
69 lines
2.9 KiB
Text
# Phase 5: Multimethods + Hierarchy Tests
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(use ../src/jolt/api)
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(defn ct-eval [ctx s] (eval-string ctx s))
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# 22. Hierarchy
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(print "22: hierarchy...")
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(let [ctx (init)]
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(assert (= true (ct-eval ctx "(map? (make-hierarchy))")) "make-hierarchy returns map")
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# 2-arity derive/isa? just returns nil/false (no global hierarchy)
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(ct-eval ctx "(derive ::square ::shape)")
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(assert (= false (ct-eval ctx "(isa? ::square ::shape)")) "isa? 2-arity always false"))
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(print " passed")
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# 23. Multimethods — basic dispatch
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(print "23: basic multimethod dispatch...")
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(let [ctx (init)]
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(ct-eval ctx "(defmulti greet (fn [x] (:lang x)))")
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(ct-eval ctx "(defmethod greet :en [_] \"hello\")")
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(ct-eval ctx "(defmethod greet :fr [_] \"bonjour\")")
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(assert (= "hello" (ct-eval ctx "(greet {:lang :en})")) "dispatch :en")
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(assert (= "bonjour" (ct-eval ctx "(greet {:lang :fr})")) "dispatch :fr")
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(assert (ct-eval ctx "(try (greet {:lang :es}) (catch Exception e true))") "missing dispatch errors"))
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(print " passed")
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# 24. Multimethods — :default dispatch
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(print "24: :default dispatch...")
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(let [ctx (init)]
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(ct-eval ctx "(defmulti classify :type :default :unknown)")
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(ct-eval ctx "(defmethod classify :a [_] :alpha)")
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(assert (= :alpha (ct-eval ctx "(classify {:type :a})")) "known dispatch")
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(assert (= :unknown (ct-eval ctx "(classify {:type :z})")) "default fallback"))
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(print " passed")
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# 25. Multimethods — hierarchy dispatch
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(print "25: hierarchy dispatch...")
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(let [ctx (init)]
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(ct-eval ctx "(def h (make-hierarchy))")
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(ct-eval ctx "(def h (derive h ::dog ::mammal))")
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(ct-eval ctx "(def h (derive h ::mammal ::animal))")
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(ct-eval ctx "(defmulti animal-sound (fn [x] x) :default :unknown :hierarchy h)")
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(ct-eval ctx "(defmethod animal-sound ::animal [_] \"rawr\")")
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(ct-eval ctx "(defmethod animal-sound ::dog [_] \"woof\")")
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(assert (= "woof" (ct-eval ctx "(animal-sound ::dog)")) "direct dispatch")
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(assert (= "rawr" (ct-eval ctx "(animal-sound ::mammal)")) "hierarchy fallback")
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(assert (= :unknown (ct-eval ctx "(animal-sound ::rock)")) "default fallback"))
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(print " passed")
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# 26. remove-method
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(print "26: remove-method...")
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(let [ctx (init)]
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(ct-eval ctx "(defmulti rmtest :k)")
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(ct-eval ctx "(defmethod rmtest :a [_] 1)")
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(ct-eval ctx "(defmethod rmtest :b [_] 2)")
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(assert (= 1 (ct-eval ctx "(rmtest {:k :a})")) "before remove")
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(ct-eval ctx "(remove-method (var rmtest) :a)")
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(assert (ct-eval ctx "(try (rmtest {:k :a}) (catch Exception e true))") "removed method errors"))
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(print " passed")
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# 27. remove-all-methods
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(print "27: remove-all-methods...")
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(let [ctx (init)]
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(ct-eval ctx "(defmulti alltest :k)")
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(ct-eval ctx "(defmethod alltest :a [_] 1)")
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(ct-eval ctx "(defmethod alltest :b [_] 2)")
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(ct-eval ctx "(remove-all-methods (var alltest))")
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(assert (ct-eval ctx "(try (alltest {:k :a}) (catch Exception e true))") "all methods removed errors"))
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(print " passed")
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(print "\nAll Phase 5 tests passed!")
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