jolt/test/compiler-test.janet
Yogthos ab7ff85816 Phase 3: Compile-aware loader, :compile? flag, compile-and-eval
- loader.janet: load-ns with compile? dispatch, compiled-cache, compiled?, clear-compiled-cache
- compiler.janet: compile-ast (Janet data structures for direct eval), compile-and-eval
- api.janet: compile-string, compile-file, eval-string dispatches to compile-and-eval when :compile? is true
- types.janet: :compile? flag and :compiled-cache table in context env
- Stateful forms (def, defmacro, ns, deftype, defmulti, defmethod) fall back to interpreter
- All 317 tests pass + 16 new Phase 3 tests
2026-06-02 15:24:28 -04:00

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# Jolt Compiler Tests — Phase 2
# Tests for source-to-source Clojure→Janet compilation.
# Core ops: const, do, if, def, fn, let, invoke
# Phase 2 adds: symbol classification with binding awareness
(use ../src/jolt/compiler)
(use ../src/jolt/reader)
(defn compile-str [s]
(let [form (parse-string s)]
(compile-form form)))
# ============================================================
# 1. Literals (const)
# ============================================================
(print "1: literal constants...")
(assert (= "42" (compile-str "42")) "integer")
(assert (= "nil" (compile-str "nil")) "nil")
(assert (= "true" (compile-str "true")) "true")
(assert (= "false" (compile-str "false")) "false")
(assert (= "\"hello\"" (compile-str "\"hello\"")) "string")
(assert (= ":foo" (compile-str ":foo")) "keyword")
(print " passed")
# ============================================================
# 2. do
# ============================================================
(print "2: do...")
(assert (= "(do 1 2)" (compile-str "(do 1 2)")) "do two exprs")
(assert (= "(do 42)" (compile-str "(do 42)")) "do single expr")
(assert (= "(do (core-inc 1) (core-inc 2))" (compile-str "(do (inc 1) (inc 2))")) "do with fn calls")
(print " passed")
# ============================================================
# 3. if
# ============================================================
(print "3: if...")
(assert (= "(if true 1 2)" (compile-str "(if true 1 2)")) "if three-arg")
(assert (= "(if false 1 nil)" (compile-str "(if false 1)")) "if two-arg")
(print " passed")
# ============================================================
# 4. def
# ============================================================
(print "4: def...")
(assert (= "(def x 42)" (compile-str "(def x 42)")) "def constant")
(assert (= "(def f (fn [x] (core-inc x)))" (compile-str "(def f (fn* [x] (inc x)))")) "def with fn")
(print " passed")
# ============================================================
# 5. fn
# ============================================================
(print "5: fn...")
(assert (= "(fn [x] (core-inc x))" (compile-str "(fn* [x] (inc x))")) "fn single arity")
(assert (= "(fn [] 42)" (compile-str "(fn* [] 42)")) "fn no args")
(assert (= "(fn [x] (do (core-print x) (core-inc x)))"
(compile-str "(fn* [x] (print x) (inc x))")) "fn multi-expr body")
(print " passed")
# ============================================================
# 6. let
# ============================================================
(print "6: let...")
(assert (= "(let [x 1] (core-inc x))" (compile-str "(let* [x 1] (inc x))")) "let single binding")
(assert (= "(let [x 1 y 2] (core-+ x y))" (compile-str "(let* [x 1 y 2] (+ x y))")) "let two bindings")
(assert (= "(let [x (core-inc 1)] (core-inc x))" (compile-str "(let* [x (inc 1)] (inc x))")) "let with fn in binding")
(print " passed")
# ============================================================
# 7. invoke (function calls)
# ============================================================
(print "7: invoke...")
(assert (= "(core-inc 1)" (compile-str "(inc 1)")) "inc call")
(assert (= "(core-+ 1 2)" (compile-str "(+ 1 2)")) "+ call")
(assert (= "(core-+ (core-inc 1) 2)" (compile-str "(+ (inc 1) 2)")) "nested calls")
(assert (= "(core-map core-inc (core-vec 1 2 3))"
(compile-str "(map inc (vec 1 2 3))")) "multi-arg call")
(print " passed")
# ============================================================
# 8. Local symbol classification (Phase 2)
# ============================================================
(print "8: local classification...")
# Shadowing: local inc should NOT be rewritten to core-inc
(assert (= "(let [inc 5] (inc inc))"
(compile-str "(let* [inc 5] (inc inc))")) "local shadows core fn")
# fn params are locals, not core symbols
(assert (= "(fn [map] (core-vec map))"
(compile-str "(fn* [map] (vec map))")) "fn param shadows core map")
# nested let with shadowing
(assert (= "(let [x 1] (let [inc x] (inc x)))"
(compile-str "(let* [x 1] (let* [inc x] (inc x)))")) "nested let local")
(print " passed")
(print "\nAll compiler Phase 2 tests passed!")
# ============================================================
# 9. Compile-and-eval round-trip (Phase 3)
# ============================================================
(print "9: compile-and-eval...")
(use ../src/jolt/core) # need core fns in scope for eval
(defn compile-eval-str [s]
(let [form (parse-string s)]
(compile-and-eval form)))
(assert (= 42 (compile-eval-str "42")) "eval literal")
(assert (= 2 (compile-eval-str "(inc 1)")) "eval inc")
(assert (= 3 (compile-eval-str "(+ 1 2)")) "eval +")
(assert (= 6 (compile-eval-str "(+ (inc 1) (inc 3))")) "eval nested")
(assert (= 2 (compile-eval-str "(do 1 2)")) "eval do")
(assert (= 1 (compile-eval-str "(if true 1 2)")) "eval if true")
(assert (= 2 (compile-eval-str "(if false 1 2)")) "eval if false")
(assert (= 2 (compile-eval-str "(let* [x 1] (inc x))")) "eval let")
(let [f (compile-eval-str "(fn* [x] (inc x))")]
(assert (function? f) "eval fn returns fn")
(assert (= 6 (f 5)) "eval fn works"))
(print " passed")
# ============================================================
# 10. Compile flag in context (Phase 3)
# ============================================================
(print "10: compile flag...")
(use ../src/jolt/api)
# Without compile flag
(let [ctx (init)]
(assert (= 2 (eval-string ctx "(inc 1)")) "no-compile flag: inc works"))
# With compile flag: pure expressions use compile-and-eval
(let [ctx (init {:compile? true})]
(assert (= 2 (eval-string ctx "(inc 1)")) "compile flag: inc works")
(assert (= 3 (eval-string ctx "(+ 1 2)")) "compile flag: + works")
(assert (= 6 (eval-string ctx "(+ (inc 1) (inc 3))")) "compile flag: nested works"))
# With compile flag: stateful forms fall back to interpreter
(let [ctx (init {:compile? true})]
(eval-string ctx "(def foo 99)")
(assert (= 99 (eval-string ctx "foo")) "compile flag: def works"))
(print " passed")
(print "\nAll compiler Phase 3 tests passed!")