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boot.rg
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boot.rg
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;; -*- mode: clojure; -*-
(ns ^{:doc "The Rouge core."
:author "Arlen Christian Mart Cuss"}
rouge.core
(:use ruby))
(def seq (fn rouge.core/seq [coll]
(.seq Rouge.Seq coll)))
(def concat (fn rouge.core/concat [& lists]
; XXX lazy seq
(seq (.inject (.to_a (.map lists | .to_a)) | .+))))
(def list (fn rouge.core/list [& elements]
elements))
(defmacro defn [name args & body]
(let [fn-name (.intern (.join [(.name (.ns (context))) (.name name)] "/"))]
`(def ~name (fn ~(Rouge.Symbol. fn-name) ~args ~@body))))
(defmacro when [cond & body]
`(if ~cond
(do
~@body)))
(defn vector [& args]
(.to_a args))
(defmacro lazy-seq [& body]
`(Rouge.Seq.Lazy. (fn [] ~@body)))
(defn reduce [f coll]
(.inject (.to_a coll) | f))
(defmacro when [cond & body]
`(if ~cond
(do
~@body)))
(defn cons [head tail]
(Rouge.Seq.Cons. head tail))
(defn count [coll]
(.count coll))
(defn = [a b]
(.== a b))
(defn nil? [x]
(.nil? x))
(defn identical? [x y]
"Returns true if x and y are the same object."
(= (.object_id x) (.object_id y)))
(defmacro or
([])
([x] x)
([x & xs] `(let [r# ~x]
(if r# r# (or ~@xs)))))
(defmacro and
([] true)
([x] x)
([x & xs] `(let [r# ~x]
(if (not r#) r# (and ~@xs)))))
(defn empty? [coll]
(or (nil? coll)
(= 0 (count coll))))
(defn map [f coll]
(lazy-seq
(if (empty? coll)
nil
(let [[hd & tl] coll]
(cons (f hd) (map f tl))))))
(defn str [& args]
(let [args (.to_a (map .to_s args))]
(.join args "")))
(defn pr-str [& args]
(let [args (.to_a (map #(.print Rouge % (String.)) args))]
(.join args " ")))
(defn print [& args]
(.print Kernel (apply pr-str args)))
(defn puts [& args]
(.print Kernel (apply str args) "\n"))
(defn class [object]
(.class object))
(defn sequential? [coll]
(or (.is_a? coll Rouge.Seq.ISeq)
(.is_a? coll Array)))
(defn not [bool]
(or (= bool nil)
(= bool false)))
(defn + [& args]
(if (empty? args)
0
(reduce .+ args)))
(defn - [a & args]
(if (= () args)
(.-@ a)
(reduce .- (concat (list a) args))))
(defn * [& args]
(if (empty? args)
1
(reduce .* args)))
(defn / [a & args]
(reduce ./ (concat (list a) args)))
(defn require [lib]
(.require Kernel lib))
(defn range [from til]
; XXX this will blow so many stacks
(if (= from til)
Rouge.Seq.Empty
(cons from (range (+ 1 from) til))))
(defn seq? [object]
(or (= (class object) Rouge.Seq.Cons)
(= object Rouge.Seq.Empty)))
(def *ns* 'user) ; XXX what
(defn ns-publics [ns]
)
(defn nth [coll index]
(.[] (seq coll) index))
(defn first [coll]
(let [s (seq coll)]
(and s
(.first s))))
(defn rest [coll]
(let [s (seq coll)]
(if s
(.more s)
())))
(defn next [coll]
(let [s (seq coll)]
(and s
(.next s))))
(defn second [coll]
(first (next coll)))
(defn > [a b]
(.> a b))
(defn < [a b]
(.< a b))
(defmacro macroexpand [form]
`(.compile Rouge.Compiler (.ns (context)) (Set.) ~form))
(defn push-thread-bindings [map]
(.push Rouge.Var map))
(defn pop-thread-bindings []
(.pop Rouge.Var))
(defn hash-map [& keyvals]
(apply .[] Hash keyvals))
(defmacro binding [bindings & body]
(let [var-ize (fn [var-vals]
(.flatten
(.to_a
(map
(fn [pair]
(let [[key val] pair]
[`(.name (var ~key)) val]))
(.each_slice var-vals 2)))
1))]
`(try
(push-thread-bindings (hash-map ~@(var-ize bindings)))
~@body
(finally
(pop-thread-bindings)))))
(defn deref [derefable]
(.deref derefable))
(defn atom [initial]
(Rouge.Atom. initial))
(defn swap! [atom f & args]
(apply .swap! atom f args))
(defn reset! [atom v]
(.reset! atom v))
(defn quot [n1 n2]
"Quotient of dividing n1 by n2."
(.div n1 n2))
(defn rem [n1 n2]
"Remainder of dividing n1 by n2."
(.remainder n1 n2))
(defn mod [n1 n2]
"Modulus of n1 and n2."
(.modulo n1 n2))
(defn inc [n]
"Returns one greater than n."
(+ n 1))
(defn dec [n]
"Returns one less than n."
(- n 1))
(defn max [x & more]
"Returns the greatest value of a set of values."
(reduce #(if (> %1 %2) %1 %2) (apply vector x more)))
(defn min [x & more]
"Returns the least value of a set of values."
(reduce #(if (< %1 %2) %1 %2) (apply vector x more)))
(defn zero? [n]
"Returns true if n is zero, otherwise false."
(.zero? n))
(defn pos? [n]
"Returns true if n is positive, otherwise false."
(.> n 0))
(defn neg? [n]
"Returns true if n is negative, otherwise false."
(.> 0 n))
(defn odd? [n]
"Returns true if n is odd, otherwise false."
(.odd? n))
(defn even? [n]
"Returns true if n is even, otherwise false."
(.even? n))
(defn number? [n]
(.is_a? n Numeric))
(defn integer? [n]
"Returns true if n is an integer."
(.is_a? n Integer))
(defn float? [n]
"Returns true if n is a floating point number."
(.is_a? n Float))
(defn complex? [n]
"Returns true if n is a complex number."
(.is_a? n Complex))
(defn rational? [n]
"Returns true if n is a rational number."
(or (.is_a? n Rational)
(.is_a? n Integer)))
(defn bit-and [n1 n2]
"Bitwise and."
(if (and (integer? n1) (integer? n2))
(.& n1 n2)
(let [msg (str "bit operation not supported for "
(class (or (and (not (integer? n1)) n1)
(and (not (integer? n2)) n2))))]
(throw (ArgumentError. msg)))))
(defn bit-or [n1 n2]
"Bitwise or."
(if (and (integer? n1) (integer? n2))
(.| n1 n2)
(let [msg (str "bit operation not supported for "
(class (or (and (not (integer? n1)) n1)
(and (not (integer? n2)) n2))))]
(throw (ArgumentError. msg)))))
(defn bit-xor [n1 n2]
"Bitwise exclusive or."
(.send n1 (.to_sym "^") n2))
(defn bit-not [n]
"Bitwise complement."
(.send n (.to_sym "~")))
(defn bit-shift-left [n1 n2]
"Bitwise shift left."
(if (and (integer? n1) (integer? n2))
(.<< n1 n2)
(let [msg (str "bit operation not supported for "
(class (or (and (not (integer? n1)) n1)
(and (not (integer? n2)) n2))))]
(throw (ArgumentError. msg)))))
(defn bit-shift-right [n1 n2]
"Bitwise shift right."
(if (and (integer? n1) (integer? n2))
(.>> n1 n2)
(let [msg (str "bit operation not supported for "
(class (or (and (not (integer? n1)) n1)
(and (not (integer? n2)) n2))))]
(throw (ArgumentError. msg)))))
(defn conj [coll & xs]
; only cons and vector. Also SUCKS.
(if (= 0 (count xs))
coll
(let [c (class coll)
[hd & tl] xs]
(if (= c Rouge.Seq.Cons)
(apply conj (Rouge.Seq.Cons coll hd) tl)
(apply conj (.push (.dup coll) hd) tl)))))
(defn get [map key] ; and [map key not-found]
(.[] map key))
(defn meta [x]
; TODO
nil)
(defn with-meta [x m]
; TODO
x)
(defmacro .
[recv method & args]
`(.send ~recv ~(.name method) ~@args))
(defmacro ->
; (-> x) => x
([x] x)
; (-> e (a b)) => (a e b)
; (-> e a) => (a e)
([x f]
(if (seq? f)
`(~(first f) ~x ~@(rest f))
`(~f ~x)))
([x f & rest]
`(-> (-> ~x ~f) ~@rest)))
(defn re-pattern [s]
(.compile Regexp s))
(defn sort-by [keyfn coll]
(-> coll
.to_a
(.sort_by | keyfn)))
(ns rouge.test
(:use rouge.core ruby))
(def ^:dynamic *test-level* [])
(def *tests-passed* (atom 0))
(def *tests-failed* (atom []))
(defmacro testing [what & tests]
`(do
(when (= [] *test-level*)
(puts))
(puts (* " " (count *test-level*) 2) "testing: " ~what)
(binding [*test-level* (conj *test-level* ~what)]
~@tests
{:passed @*tests-passed*
:failed @*tests-failed*})))
(defn check-code [check]
(if (and (seq? check)
(= (first check) '=)
(= (count check) 3))
(let [[_ l r] check]
`(let [l# ~l
r# ~r]
(if (= l# r#)
{:result true}
{:result false, :error `(~'~'= ~r# ~'~r)})))
{:error nil, :result check}))
(defn format-actual [check]
(if (and (seq? check)
(= (first check) 'not)
(= (count check) 2))
(second check)
`(not ~check)))
(defmacro is [check]
`(let [result# (try
~(check-code check)
(catch Exception e#
{:error e#, :result false}))]
(if (not (:result result#))
(do
(swap! *tests-failed* conj (conj *test-level* (pr-str '~check)))
(puts "FAIL in ???")
(puts "expected: " ~(pr-str check))
(let [actual#
(let [error# (:error result#)]
(if error#
error#
(format-actual '~check)))]
(puts " actual: " (pr-str actual#))))
(do
(swap! *tests-passed* inc)
true))))
(defmacro pending [& body]
(puts "TODO rouge.test/pending"))
; vim: set ft=clojure cc=80: