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; Copyright (c) Rich Hickey. All rights reserved.
; The use and distribution terms for this software are covered by the
; Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
; which can be found in the file epl-v10.html at the root of this distribution.
; By using this software in any fashion, you are agreeing to be bound by
; the terms of this license.
; You must not remove this notice, or any other, from this software.
; Author: Frantisek Sodomka
(ns clojure.test-clojure.compilation
(:import (clojure.lang Compiler Compiler$CompilerException))
(:require [clojure.test.generative :refer (defspec)]
[clojure.data.generators :as gen])
(:use clojure.test
[clojure.test-helper :only (should-not-reflect should-print-err-message)]))
; http://clojure.org/compilation
; compile
; gen-class, gen-interface
(deftest test-compiler-metadata
(let [m (meta #'when)]
(are [x y] (= x y)
(list? (:arglists m)) true
(> (count (:arglists m)) 0) true
(string? (:doc m)) true
(> (.length (:doc m)) 0) true
(string? (:file m)) true
(> (.length (:file m)) 0) true
(integer? (:line m)) true
(> (:line m) 0) true
(integer? (:column m)) true
(> (:column m) 0) true
(:macro m) true
(:name m) 'when )))
(deftest test-embedded-constants
(testing "Embedded constants"
(is (eval `(= Boolean/TYPE ~Boolean/TYPE)))
(is (eval `(= Byte/TYPE ~Byte/TYPE)))
(is (eval `(= Character/TYPE ~Character/TYPE)))
(is (eval `(= Double/TYPE ~Double/TYPE)))
(is (eval `(= Float/TYPE ~Float/TYPE)))
(is (eval `(= Integer/TYPE ~Integer/TYPE)))
(is (eval `(= Long/TYPE ~Long/TYPE)))
(is (eval `(= Short/TYPE ~Short/TYPE)))))
(deftest test-compiler-resolution
(testing "resolve nonexistent class create should return nil (assembla #262)"
(is (nil? (resolve 'NonExistentClass.)))))
(deftest test-no-recur-across-try
(testing "don't recur to function from inside try"
(is (thrown? Compiler$CompilerException
(eval '(fn [x] (try (recur 1)))))))
(testing "don't recur to loop from inside try"
(is (thrown? Compiler$CompilerException
(eval '(loop [x 5]
(try (recur 1)))))))
(testing "don't recur to loop from inside of catch inside of try"
(is (thrown? Compiler$CompilerException
(eval '(loop [x 5]
(try
(catch Exception e
(recur 1))))))))
(testing "don't recur to loop from inside of finally inside of try"
(is (thrown? Compiler$CompilerException
(eval '(loop [x 5]
(try
(finally
(recur 1))))))))
(testing "don't get confused about what the recur is targeting"
(is (thrown? Compiler$CompilerException
(eval '(loop [x 5]
(try (fn [x]) (recur 1)))))))
(testing "don't allow recur across binding"
(is (thrown? Compiler$CompilerException
(eval '(fn [x] (binding [+ *] (recur 1)))))))
(testing "allow loop/recur inside try"
(is (= 0 (eval '(try (loop [x 3]
(if (zero? x) x (recur (dec x)))))))))
(testing "allow loop/recur fully inside catch"
(is (= 3 (eval '(try
(throw (Exception.))
(catch Exception e
(loop [x 0]
(if (< x 3) (recur (inc x)) x))))))))
(testing "allow loop/recur fully inside finally"
(is (= "012" (eval '(with-out-str
(try
:return-val-discarded-because-of-with-out-str
(finally (loop [x 0]
(when (< x 3)
(print x)
(recur (inc x)))))))))))
(testing "allow fn/recur inside try"
(is (= 0 (eval '(try
((fn [x]
(if (zero? x)
x
(recur (dec x))))
3)))))))
;; disabled until build box can call java from mvn
#_(deftest test-numeric-dispatch
(is (= "(int, int)" (TestDispatch/someMethod (int 1) (int 1))))
(is (= "(int, long)" (TestDispatch/someMethod (int 1) (long 1))))
(is (= "(long, long)" (TestDispatch/someMethod (long 1) (long 1)))))
(deftest test-CLJ-671-regression
(testing "that the presence of hints does not cause the compiler to infinitely loop"
(letfn [(gcd [x y]
(loop [x (long x) y (long y)]
(if (== y 0)
x
(recur y ^Long(rem x y)))))]
(is (= 4 (gcd 8 100))))))
;; ensure proper use of hints / type decls
(defn hinted
(^String [])
(^Integer [a])
(^java.util.List [a & args]))
;; fn names need to be fully-qualified because should-not-reflect evals its arg in a throwaway namespace
(deftest recognize-hinted-arg-vector
(should-not-reflect #(.substring (clojure.test-clojure.compilation/hinted) 0))
(should-not-reflect #(.floatValue (clojure.test-clojure.compilation/hinted "arg")))
(should-not-reflect #(.size (clojure.test-clojure.compilation/hinted :many :rest :args :here))))
(defn ^String hinting-conflict ^Integer [])
(deftest calls-use-arg-vector-hint
(should-not-reflect #(.floatValue (clojure.test-clojure.compilation/hinting-conflict)))
(should-print-err-message #"(?s)Reflection warning.*"
#(.substring (clojure.test-clojure.compilation/hinting-conflict) 0)))
(deftest deref-uses-var-tag
(should-not-reflect #(.substring clojure.test-clojure.compilation/hinting-conflict 0))
(should-print-err-message #"(?s)Reflection warning.*"
#(.floatValue clojure.test-clojure.compilation/hinting-conflict)))
(defn ^String legacy-hinting [])
(deftest legacy-call-hint
(should-not-reflect #(.substring (clojure.test-clojure.compilation/legacy-hinting) 0)))
(defprotocol HintedProtocol
(hintedp ^String [a]
^Integer [a b]))
(deftest hinted-protocol-arg-vector
(should-not-reflect #(.substring (clojure.test-clojure.compilation/hintedp "") 0))
(should-not-reflect #(.floatValue (clojure.test-clojure.compilation/hintedp :a :b))))
(defn primfn
(^long [])
(^double [a]))
(deftest primitive-return-decl
(should-not-reflect #(loop [k 5] (recur (clojure.test-clojure.compilation/primfn))))
(should-not-reflect #(loop [k 5.0] (recur (clojure.test-clojure.compilation/primfn 0))))
(should-print-err-message #"(?s).*k is not matching primitive.*"
#(loop [k (clojure.test-clojure.compilation/primfn)] (recur :foo))))
#_(deftest CLJ-1154-use-out-after-compile
;; This test creates a dummy file to compile, sets up a dummy
;; compiled output directory, and a dummy output stream, and
;; verifies the stream is still usable after compiling.
(spit "test/dummy.clj" "(ns dummy)")
(try
(let [compile-path (System/getProperty "clojure.compile.path")
tmp (java.io.File. "tmp")
new-out (java.io.OutputStreamWriter. (java.io.ByteArrayOutputStream.))]
(binding [clojure.core/*out* new-out]
(try
(.mkdir tmp)
(System/setProperty "clojure.compile.path" "tmp")
(clojure.lang.Compile/main (into-array ["dummy"]))
(println "this should still work without throwing an exception" )
(finally
(if compile-path
(System/setProperty "clojure.compile.path" compile-path)
(System/clearProperty "clojure.compile.path"))
(doseq [f (.listFiles tmp)]
(.delete f))
(.delete tmp)))))
(finally
(doseq [f (.listFiles (java.io.File. "test"))
:when (re-find #"dummy.clj" (str f))]
(.delete f)))))
(deftest CLJ-1184-do-in-non-list-test
(testing "do in a vector throws an exception"
(is (thrown? Compiler$CompilerException
(eval '[do 1 2 3]))))
(testing "do in a set throws an exception"
(is (thrown? Compiler$CompilerException
(eval '#{do}))))
;; compile uses a separate code path so we have to call it directly
;; to test it
(letfn [(compile [s]
(spit "test/clojure/bad_def_test.clj" (str "(ns clojure.bad-def-test)\n" s))
(try
(binding [*compile-path* "test"]
(clojure.core/compile 'clojure.bad-def-test))
(finally
(doseq [f (.listFiles (java.io.File. "test/clojure"))
:when (re-find #"bad_def_test" (str f))]
(.delete f)))))]
(testing "do in a vector throws an exception in compilation"
(is (thrown? Compiler$CompilerException (compile "[do 1 2 3]"))))
(testing "do in a set throws an exception in compilation"
(is (thrown? Compiler$CompilerException (compile "#{do}"))))))
(defn gen-name []
;; Not all names can be correctly demunged. Skip names that contain
;; a munge word as they will not properly demunge.
(let [munge-words (remove clojure.string/blank?
(conj (map #(clojure.string/replace % "_" "")
(vals Compiler/CHAR_MAP)) "_"))]
(first (filter (fn [n] (not-any? #(>= (.indexOf n %) 0) munge-words))
(repeatedly #(name (gen/symbol (constantly 10))))))))
(defn munge-roundtrip [n]
(Compiler/demunge (Compiler/munge n)))
(defspec test-munge-roundtrip
munge-roundtrip
[^{:tag clojure.test-clojure.compilation/gen-name} n]
(assert (= n %)))
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