199 lines
7.5 KiB
Clojure
199 lines
7.5 KiB
Clojure
(ns clojurefx.controllergen
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;; (:gen-class :name Controllergen
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;; :implements [org.objectweb.asm.Opcodes])
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;; (:import (net.openhft.compiler CachedCompiler CompilerUtils))
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(:import (org.objectweb.asm ClassWriter Opcodes))
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(:use swiss.arrows)
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(:require [clojure.xml :as xml]
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[clojure.zip :as zip]
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[clojure.string :as str]
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[clojure.java.io :as io]
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[taoensso.timbre :as timbre]
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[camel-snake-kebab.core :as csk]
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[clojure.spec.alpha :as s]))
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(timbre/refer-timbre)
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;; (def xmlzip (zip/xml-zip (xml/parse "/home/zilti/projects/lizenztool/resources/fxml/mainwindow.fxml")))
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;; Compiler
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;; (defonce cached-compiler (CachedCompiler. nil nil))
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;; (defn makeclass [pkg classname code]
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;; (debug (str "\n" code))
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;; (try
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;; (.loadFromJava cached-compiler (str/join "." [pkg classname]) code)
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;; (catch java.lang.ClassNotFoundException e (error e))))
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;; ;; Parser
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(def imports (list clojure.java.api.Clojure clojure.lang.IFn java.net.URL java.util.ResourceBundle javafx.event.ActionEvent javafx.fxml.FXML))
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(defn build-imports [filename]
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(->> (slurp filename)
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str/split-lines
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(filter #(str/starts-with? % "<?import"))
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(map #(str/replace % #"<\?import " ""))
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(map #(str/replace % #"\?>" ""))
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(map #(Class/forName %))
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(reduce conj imports)))
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(defn qualify-class [imports class-str]
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(first (filter #(= class-str (last (str/split (pr-str %) #"\."))) imports)))
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(defn init-class [pkg classname import-classes]
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(debug (str (str/replace pkg #"\." "/") "/" classname))
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(let [cw (new org.objectweb.asm.ClassWriter 0)
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clazz (.visit cw Opcodes/V1_8
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(+ Opcodes/ACC_PUBLIC Opcodes/ACC_SUPER)
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(str (str/replace pkg #"\." "/") "/" classname)
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nil
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"java/lang/Object"
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nil)
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resources_fv (.visitField cw Opcodes/ACC_PRIVATE
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"resources"
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(pr-str (qualify-class import-classes "ResourceBundle"))
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nil
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nil)
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url_fv (.visitField cw Opcodes/ACC_PRIVATE
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"location"
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(pr-str (qualify-class import-classes "URL"))
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nil
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nil)]
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(-> (.visitAnnotation resources_fv "Ljavafx/fxml/FXML;" true)
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.visitEnd)
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(.visitEnd resources_fv)
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(-> (.visitAnnotation url_fv "Ljavafx/fxml/FXML;" true)
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.visitEnd)
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(.visitEnd url_fv)
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cw))
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(defn zip-tree-seq [node]
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(tree-seq (complement string?)
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:content
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node))
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(defn get-handler-props [{:keys [attrs]}]
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(->> attrs
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(filter #(str/starts-with? (name (key %)) "on"))
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(map val)
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flatten))
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(defn get-handler-fns [ziptree]
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(->> ziptree
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(map get-handler-props)
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(remove empty?)
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flatten))
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(defn get-fxid-elems [ziptree]
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(->> ziptree
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(filter #(contains? (:attrs %) :fx:id))))
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(defn get-controller-class [fxmlzip]
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(->> fxmlzip
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(filter #(contains? (:attrs %) :fx:controller))
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first
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:attrs
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:fx:controller))
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(defn gen-props [cw [entry & coll] import-classes]
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(if-not (empty? coll)
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(let [fv (.visitField cw Opcodes/ACC_PUBLIC
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(get-in entry [:attrs :fx:id])
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(pr-str (qualify-class import-classes (name (:tag entry))))
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nil nil)]
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(-> (.visitAnnotation fv "Ljava/fxml/FXML;" true)
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.visitEnd)
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(.visitEnd fv)
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(recur cw coll import-classes))
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cw))
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(defn gen-handlers [cw [entry & coll] clj-ns]
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(if-not (empty? coll)
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(let [mv (.visitMethod cw 0
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(subs entry 1)
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"(Ljavafx/event/ActionEvent;)V"
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nil nil)]
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(-> (.visitAnnotation mv "Ljava/fxml/FXML;" true)
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.visitEnd)
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(.. mv
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visitCode
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(visitLdcInsn clj-ns)
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(visitLdcInsn (csk/->kebab-case (subs entry 1)))
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(visitMethodInsn Opcodes/INVOKESTATIC "clojure/java/api/Clojure" "var" "(Ljava/lang/Object;Ljava/lang/Object;)Lclojure/lang/IFn;" false)
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(visitVarInsn Opcodes/ALOAD 0)
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(visitVarInsn Opcodes/ALOAD 1)
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(visitMethodInsn Opcodes/INVOKEINTERFACE "clojure/lang/IFn" "invoke" "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;" true)
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(visitInsn Opcodes/POP)
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(visitInsn Opcodes/RETURN)
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(visitMaxs 3 2)
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visitEnd)
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(recur cw coll clj-ns))
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cw))
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;; (defn gen-handlers [coll clj-ns]
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;; (->> (flatten coll)
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;; (map #(format " @FXML\n void %s(ActionEvent event) {\n Clojure.var(\"%s\", \"%s\").invoke(this, event);\n }\n\n"
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;; (subs % 1) clj-ns (csk/->kebab-case (subs % 1))))
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;; (str/join "")))
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;; (defn gen-initializer [cns cfn]
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;; (format " @FXML
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;; void initialize() {
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;; Clojure.var(\"%s\", \"%s\").invoke(this);
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;; }" cns cfn))
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;; (defn gen-fx-controller [fxmlzip fxmlpath [clj-ns clj-fn]]
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;; (let [clazz (get-controller-class fxmlzip)
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;; [pkg classname] (reverse (map str/reverse (str/split (str/reverse clazz) #"\." 2)))
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;; fxid-elems (get-fxid-elems fxmlzip)
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;; handler-fns (get-handler-fns fxmlzip)]
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;; (debug "fxid-elems:" (pr-str fxid-elems))
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;; (debug "handler-fns:" (pr-str handler-fns))
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;; (str (format "package %s;\n\n" pkg)
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;; stockimports
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;; (get-imports fxmlpath)
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;; (format "\n\npublic class %s {\n\n" classname)
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;; (gen-props fxid-elems)
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;; (gen-handlers handler-fns clj-ns)
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;; (gen-initializer clj-ns clj-fn)
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;; "\n}")))
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(defn gen-fx-controller #^Byte [fxmlzip fxmlpath [clj-ns clj-fn] [pkg classname]]
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(let [fxid-elems (get-fxid-elems fxmlzip)
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handler-fns (get-handler-fns fxmlzip)
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import-classes (build-imports fxmlpath)]
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(-> (init-class pkg classname import-classes)
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(gen-props fxid-elems import-classes)
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(gen-handlers handler-fns clj-ns)
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.toByteArray)))
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;; ;; Plumber
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;; (defn gen-fx-controller-class [fxmlpath clj-fn]
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;; (let [clj-fn (if (symbol? clj-fn)
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;; (str (namespace clj-fn) "/" (name clj-fn))
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;; clj-fn)
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;; fxmlzip (zip-tree-seq (xml/parse (io/input-stream fxmlpath)))
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;; clazz (get-controller-class fxmlzip)
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;; [pkg classname] (reverse (map str/reverse (str/split (str/reverse clazz) #"\." 2)))
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;; cljvec (str/split clj-fn #"/")]
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;; (makeclass pkg classname (gen-fx-controller fxmlzip fxmlpath cljvec))))
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(defn gen-fx-controller-class [fxmlpath clj-fn]
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(let [clj-fn ^String (if (symbol? clj-fn)
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(str (namespace clj-fn) "/" (name clj-fn))
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clj-fn)
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fxmlzip (zip-tree-seq (xml/parse (io/input-stream fxmlpath)))
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clazz (get-controller-class fxmlzip)
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[pkg classname] (reverse (map str/reverse (str/split (str/reverse clazz) #"\." 2)))
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cljvec (str/split clj-fn #"/")
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controllerclass #^Byte (gen-fx-controller fxmlzip fxmlpath cljvec [pkg classname])
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classloader (.getContextClassLoader (Thread/currentThread))]
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(debug "Controllerclass array size is" (count controllerclass) "Byte")
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(debug "Controllerclass of class" (str pkg "." classname) "has an array size of" (count controllerclass) "Byte")
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(debug (type controllerclass))
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(.defineClass classloader (str pkg "." classname) controllerclass 0 (count controllerclass))))
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