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|
(ns lux.compiler.lux
(:require (clojure [string :as string]
[set :as set]
[template :refer [do-template]])
[clojure.core.match :refer [match]]
(lux [base :as & :refer [exec return* return fail fail*
repeat-m exhaust-m try-m try-all-m map-m reduce-m
apply-m
normalize-ident]]
[type :as &type]
[lexer :as &lexer]
[parser :as &parser]
[analyser :as &analyser]
[host :as &host])
[lux.analyser.base :as &a]
(lux.compiler [base :as &&]
[lambda :as &&lambda])
:reload)
(:import (org.objectweb.asm Opcodes
Label
ClassWriter
MethodVisitor)))
;; [Exports]
(let [+class+ (&host/->class "java.lang.Boolean")
+sig+ (&host/->type-signature "java.lang.Boolean")]
(defn compile-bool [compile *type* ?value]
(exec [*writer* &/get-writer
:let [_ (.visitFieldInsn *writer* Opcodes/GETSTATIC (&host/->class "java.lang.Boolean") (if ?value "TRUE" "FALSE") (&host/->type-signature "java.lang.Boolean"))]]
(return nil))))
(do-template [<name> <class> <sig> <caster>]
(let [+class+ (&host/->class <class>)]
(defn <name> [compile *type* value]
(exec [*writer* &/get-writer
:let [_ (doto *writer*
(.visitTypeInsn Opcodes/NEW +class+)
(.visitInsn Opcodes/DUP)
(.visitLdcInsn (<caster> value))
(.visitMethodInsn Opcodes/INVOKESPECIAL +class+ "<init>" <sig>))]]
(return nil))))
compile-int "java.lang.Long" "(J)V" long
compile-real "java.lang.Double" "(D)V" double
compile-char "java.lang.Character" "(C)V" char
)
(defn compile-text [compile *type* ?value]
(exec [*writer* &/get-writer
:let [_ (.visitLdcInsn *writer* ?value)]]
(return nil)))
(defn compile-tuple [compile *type* ?elems]
(exec [*writer* &/get-writer
:let [num-elems (count ?elems)
_ (doto *writer*
(.visitLdcInsn (int num-elems))
(.visitTypeInsn Opcodes/ANEWARRAY (&host/->class "java.lang.Object")))]
_ (map-m (fn [[idx elem]]
(exec [:let [_ (doto *writer*
(.visitInsn Opcodes/DUP)
(.visitLdcInsn (int idx)))]
ret (compile elem)
:let [_ (.visitInsn *writer* Opcodes/AASTORE)]]
(return ret)))
(map vector (range num-elems) ?elems))]
(return nil)))
(defn compile-record [compile *type* ?elems]
(exec [*writer* &/get-writer
:let [num-elems (count ?elems)
_ (doto *writer*
(.visitLdcInsn (int (* 2 num-elems)))
(.visitTypeInsn Opcodes/ANEWARRAY (&host/->class "java.lang.Object")))]
_ (map-m (fn [[idx [k v]]]
(exec [:let [idx* (* 2 idx)
_ (doto *writer*
(.visitInsn Opcodes/DUP)
(.visitLdcInsn (int idx*))
(.visitLdcInsn k)
(.visitInsn Opcodes/AASTORE))]
:let [_ (doto *writer*
(.visitInsn Opcodes/DUP)
(.visitLdcInsn (int (inc idx*))))]
ret (compile v)
:let [_ (.visitInsn *writer* Opcodes/AASTORE)]]
(return ret)))
(map vector (range num-elems) ?elems))]
(return nil)))
(defn compile-variant [compile *type* ?tag ?value]
(exec [*writer* &/get-writer
:let [_ (doto *writer*
(.visitLdcInsn (int 2))
(.visitTypeInsn Opcodes/ANEWARRAY (&host/->class "java.lang.Object"))
(.visitInsn Opcodes/DUP)
(.visitLdcInsn (int 0))
(.visitLdcInsn ?tag)
(.visitInsn Opcodes/AASTORE)
(.visitInsn Opcodes/DUP)
(.visitLdcInsn (int 1)))]
_ (compile ?value)
:let [_ (.visitInsn *writer* Opcodes/AASTORE)]]
(return nil)))
(defn compile-local [compile *type* ?idx]
(exec [*writer* &/get-writer
:let [_ (.visitVarInsn *writer* Opcodes/ALOAD (int ?idx))]]
(return nil)))
(defn compile-captured [compile *type* ?scope ?captured-id ?source]
;; (prn 'compile-captured ?scope ?captured-id)
(exec [*writer* &/get-writer
:let [_ (doto *writer*
(.visitVarInsn Opcodes/ALOAD 0)
(.visitFieldInsn Opcodes/GETFIELD
(&host/location ?scope)
(str &&/closure-prefix ?captured-id)
"Ljava/lang/Object;"))]]
(return nil)))
(defn compile-global [compile *type* ?owner-class ?name]
(exec [*writer* &/get-writer
:let [_ (.visitFieldInsn *writer* Opcodes/GETSTATIC (&host/->class (&host/location (list ?owner-class ?name))) "_datum" "Ljava/lang/Object;")]]
(return nil)))
(defn compile-call [compile *type* ?fn ?args]
(exec [*writer* &/get-writer
_ (compile ?fn)
_ (map-m (fn [arg]
(exec [ret (compile arg)
:let [_ (.visitMethodInsn *writer* Opcodes/INVOKEINTERFACE (&host/->class &host/function-class) "apply" &&/apply-signature)]]
(return ret)))
?args)]
(return nil)))
(defn compile-get [compile *type* ?slot ?record]
(exec [*writer* &/get-writer
_ (compile ?record)
:let [$then (new Label)
$test-else (new Label)
$end (new Label)
$start (new Label)
_ (doto *writer* ;; record
(.visitInsn Opcodes/DUP) ;; record, record
(.visitInsn Opcodes/ARRAYLENGTH) ;; record, length
(.visitInsn Opcodes/ICONST_2) ;; record, length, 2
(.visitInsn Opcodes/ISUB) ;; record, length--
(.visitLabel $start)
(.visitInsn Opcodes/DUP) ;; record, length, length
(.visitLdcInsn (int -2)) ;; record, length, length, -2
(.visitJumpInsn Opcodes/IF_ICMPEQ $then) ;; record, length
;;;
(.visitInsn Opcodes/DUP2) ;; record, length, record, length
(.visitInsn Opcodes/AALOAD) ;; record, length, aslot
(.visitLdcInsn ?slot) ;; record, length, aslot, eslot
(.visitMethodInsn Opcodes/INVOKEVIRTUAL (&host/->class "java.lang.Object") "equals" (str "(" (&host/->type-signature "java.lang.Object") ")Z")) ;; record, length, Z
(.visitJumpInsn Opcodes/IFEQ $test-else) ;; record, length
(.visitInsn Opcodes/ICONST_1) ;; record, length, 1
(.visitInsn Opcodes/IADD) ;; record, length+
(.visitInsn Opcodes/AALOAD) ;; value
(.visitJumpInsn Opcodes/GOTO $end)
(.visitLabel $test-else)
(.visitInsn Opcodes/ICONST_2) ;; record, length, 2
(.visitInsn Opcodes/ISUB) ;; record, length--
(.visitJumpInsn Opcodes/GOTO $start)
;;;
(.visitLabel $then)
(.visitInsn Opcodes/POP) ;; record
(.visitInsn Opcodes/POP) ;;
(.visitInsn Opcodes/ACONST_NULL) ;; null
(.visitLabel $end))]]
(return nil)))
(let [o-sig (&host/->type-signature "java.lang.Object")]
(defn compile-set [compile *type* ?slot ?value ?record]
(exec [*writer* &/get-writer
_ (compile ?record)
:let [$then (new Label)
$test-else (new Label)
$end (new Label)
$start (new Label)
_ (doto *writer* ;; record1
;;;
(.visitInsn Opcodes/DUP) ;; record1, record1
(.visitInsn Opcodes/ARRAYLENGTH) ;; record1, length1
(.visitTypeInsn Opcodes/ANEWARRAY (&host/->class "java.lang.Object")) ;; record1, record2
(.visitInsn Opcodes/DUP_X1) ;; record2, record1, record2
(.visitInsn Opcodes/ICONST_0) ;; record2, record1, record2, 0
(.visitInsn Opcodes/SWAP) ;; record2, record1, 0, record2
(.visitInsn Opcodes/DUP) ;; record2, record1, 0, record2, record2
(.visitInsn Opcodes/ARRAYLENGTH) ;; record2, record1, 0, record2, length2
(.visitInsn Opcodes/ICONST_0) ;; record2, record1, 0, record2, length2, 0
(.visitInsn Opcodes/SWAP) ;; record2, record1, 0, record2, 0, length2
(.visitMethodInsn Opcodes/INVOKESTATIC (&host/->class "java.lang.System") "arraycopy" (str "(" o-sig "I" o-sig "I" "I" ")V")) ;; record2
;;;
(.visitInsn Opcodes/DUP) ;; record, record
(.visitInsn Opcodes/ARRAYLENGTH) ;; record, length
(.visitInsn Opcodes/ICONST_2) ;; record, length, 2
(.visitInsn Opcodes/ISUB) ;; record, length--
(.visitLabel $start)
(.visitInsn Opcodes/DUP) ;; record, length, length
(.visitLdcInsn (int -2)) ;; record, length, length, -2
(.visitJumpInsn Opcodes/IF_ICMPEQ $then) ;; record, length
;;;
(.visitInsn Opcodes/DUP2) ;; record, length, record, length
(.visitInsn Opcodes/AALOAD) ;; record, length, aslot
(.visitLdcInsn ?slot) ;; record, length, aslot, eslot
(.visitMethodInsn Opcodes/INVOKEVIRTUAL (&host/->class "java.lang.Object") "equals" (str "(" (&host/->type-signature "java.lang.Object") ")Z")) ;; record, length, Z
(.visitJumpInsn Opcodes/IFEQ $test-else) ;; record, length
(.visitInsn Opcodes/DUP2) ;; record, length, record, length
(.visitInsn Opcodes/ICONST_1) ;; record, length, record, length, 1
(.visitInsn Opcodes/IADD) ;; record, length, record, length+
(do (compile ?value)) ;; record, length, record, length+, value
(.visitInsn Opcodes/AASTORE) ;; record, length
(.visitInsn Opcodes/POP) ;; record
(.visitJumpInsn Opcodes/GOTO $end)
(.visitLabel $test-else)
(.visitInsn Opcodes/ICONST_2) ;; record, length, 2
(.visitInsn Opcodes/ISUB) ;; record, length--
(.visitJumpInsn Opcodes/GOTO $start)
;;;
(.visitLabel $then)
(.visitInsn Opcodes/POP) ;; record
(.visitLabel $end))]]
(return nil))))
(defn compile-def [compile ?name ?body]
(exec [*writer* &/get-writer
module-name &/get-module-name
:let [outer-class (&host/->class module-name)
datum-sig (&host/->type-signature "java.lang.Object")
current-class (&host/location (list outer-class ?name))
_ (.visitInnerClass *writer* current-class outer-class nil (+ Opcodes/ACC_STATIC Opcodes/ACC_SYNTHETIC))
=class (doto (new ClassWriter ClassWriter/COMPUTE_MAXS)
(.visit Opcodes/V1_5 (+ Opcodes/ACC_PUBLIC Opcodes/ACC_FINAL Opcodes/ACC_SUPER)
current-class nil "java/lang/Object" (into-array [(&host/->class &host/function-class)]))
(-> (.visitField (+ Opcodes/ACC_PUBLIC Opcodes/ACC_FINAL Opcodes/ACC_STATIC) "_datum" datum-sig nil nil)
(doto (.visitEnd))))]
_ (&/with-writer (.visitMethod =class Opcodes/ACC_PUBLIC "<clinit>" "()V" nil nil)
(exec [*writer* &/get-writer
:let [_ (.visitCode *writer*)]
_ (compile ?body)
:let [_ (doto *writer*
(.visitFieldInsn Opcodes/PUTSTATIC current-class "_datum" datum-sig)
(.visitInsn Opcodes/RETURN)
(.visitMaxs 0 0)
(.visitEnd))]]
(return nil)))
:let [_ (.visitEnd *writer*)]
_ (&&/save-class! current-class (.toByteArray =class))
:let [_ (prn 'compile-def ?name)]]
(return nil)))
|
