mirror of
https://github.com/2003scape/deep-c-rsc.git
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219 lines
8.0 KiB
Java
219 lines
8.0 KiB
Java
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/*
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* @(#) $(JCGO)/jtrsrc/com/ivmaisoft/jcgo/MethodProxy.java --
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* a part of JCGO translator.
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**
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* Project: JCGO (http://www.ivmaisoft.com/jcgo/)
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* Copyright (C) 2001-2012 Ivan Maidanski <ivmai@mail.ru>
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* All rights reserved.
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*/
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/*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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**
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* This software is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License (GPL) for more details.
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**
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* Linking this library statically or dynamically with other modules is
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* making a combined work based on this library. Thus, the terms and
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* conditions of the GNU General Public License cover the whole
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* combination.
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**
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* As a special exception, the copyright holders of this library give you
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* permission to link this library with independent modules to produce an
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* executable, regardless of the license terms of these independent
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* modules, and to copy and distribute the resulting executable under
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* terms of your choice, provided that you also meet, for each linked
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* independent module, the terms and conditions of the license of that
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* module. An independent module is a module which is not derived from
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* or based on this library. If you modify this library, you may extend
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* this exception to your version of the library, but you are not
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* obligated to do so. If you do not wish to do so, delete this
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* exception statement from your version.
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*/
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package com.ivmaisoft.jcgo;
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import java.util.Enumeration;
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/**
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* A proxy function generator for reflected methods.
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*/
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final class MethodProxy {
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private MethodDefinition md;
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private String csign;
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MethodProxy(MethodDefinition md) {
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this.md = md;
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StringBuffer sb = new StringBuffer();
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int s0 = md.exprType().objectSize();
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sb.append(Type.sig[s0 < Type.CLASSINTERFACE ? s0 : Type.CLASSINTERFACE]);
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if (!md.isClassMethod()) {
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sb.append('T');
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}
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Enumeration en = md.methodSignature().elements();
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while (en.hasMoreElements()) {
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s0 = ((ExpressionType) en.nextElement()).objectSize();
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sb.append(Type.sig[s0 < Type.CLASSINTERFACE ? s0
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: Type.CLASSINTERFACE]);
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}
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csign = sb.toString();
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}
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String csign() {
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return csign;
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}
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String stringOutput() {
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return "jcgo_mproxy_" + csign;
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}
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void processOutput(OutputContext oc) {
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oc.cAndHPrint("JCGO_NOSEP_STATIC ");
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oc.cAndHPrint(Type.cName[Type.CLASSINTERFACE]);
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oc.cAndHPrint(" CFASTCALL\n");
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oc.cAndHPrint("jcgo_mproxy_");
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oc.cAndHPrint(csign);
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oc.cAndHPrint("( ");
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oc.cAndHPrint(Type.cName[Type.VOID]);
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oc.cAndHPrint(" (CFASTCALL *jmethod)( ");
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oc.cAndHPrint(Type.cName[Type.VOID]);
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oc.cAndHPrint(" ), ");
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oc.cAndHPrint(Type.cName[Type.CLASSINTERFACE]);
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oc.cAndHPrint(" obj, ");
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for (int type = Type.INT; type <= Type.DOUBLE; type++) {
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oc.cAndHPrint(Type.cName[type + Type.CLASSINTERFACE]);
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oc.cAndHPrint(" ");
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oc.cAndHPrint(Type.name[type]);
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oc.cAndHPrint("Args, ");
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}
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oc.cAndHPrint(Type.cName[Type.OBJECTARRAY]);
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oc.cAndHPrint(" objectArgs )");
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oc.hPrint(";\n\n");
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oc.cPrint("{");
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ExpressionType resType = md.exprType();
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int s0 = resType.objectSize();
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if (s0 < Type.CLASSINTERFACE) {
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if (s0 != Type.VOID) {
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oc.cPrint("JCGO_ARR_INTERNALACC(");
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oc.cPrint(Type.cName[s0 > Type.INT ? s0 : Type.INT]);
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oc.cPrint(", ");
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oc.cPrint(Type.name[s0 > Type.INT ? s0 : Type.INT]);
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oc.cPrint("Args, 0)= ");
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if (s0 == Type.CHAR) {
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oc.cPrint("(");
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oc.cPrint(Type.cName[Type.INT]);
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oc.cPrint(")");
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}
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}
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oc.cPrint("((");
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oc.cPrint(Type.cName[s0]);
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} else {
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oc.cPrint("return ((");
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oc.cPrint(Type.cName[Type.CLASSINTERFACE]);
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}
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oc.cPrint(" (CFASTCALL*)( ");
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boolean next = false;
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if (!md.isClassMethod()) {
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oc.cPrint(Type.cName[Type.CLASSINTERFACE]);
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next = true;
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}
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MethodSignature msig = null;
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if (md.hasParameters()) {
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msig = md.methodSignature();
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int type = Type.VOID;
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do {
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int type2 = type == Type.LONG ? Type.FLOAT
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: type == Type.FLOAT ? Type.LONG : type;
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Enumeration en = msig.elements();
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while (en.hasMoreElements()) {
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int s = ((ExpressionType) en.nextElement()).objectSize();
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if (type2 == s
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|| (type == Type.VOID && s >= Type.CLASSINTERFACE)) {
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if (next) {
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oc.cPrint(", ");
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}
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oc.cPrint(Type.cName[s < Type.CLASSINTERFACE ? s
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: Type.CLASSINTERFACE]);
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next = true;
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}
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}
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} while (--type > Type.NULLREF);
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}
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if (!next) {
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oc.cPrint(Type.cName[Type.VOID]);
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}
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oc.cPrint(" ))jmethod)(");
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next = false;
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if (!md.isClassMethod()) {
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oc.cPrint("obj");
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next = true;
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}
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if (msig != null) {
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int[] indices = new int[Type.CLASSINTERFACE - Type.INT + 1];
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int type = Type.VOID;
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do {
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int type2 = type == Type.LONG ? Type.FLOAT
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: type == Type.FLOAT ? Type.LONG : type;
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indices[0] = 0;
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Enumeration en = msig.elements();
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while (en.hasMoreElements()) {
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int s = ((ExpressionType) en.nextElement()).objectSize();
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if (type2 == s
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|| (type == Type.VOID && s >= Type.CLASSINTERFACE)) {
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if (next) {
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oc.cPrint(", ");
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}
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boolean isBool = false;
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if (s < Type.INT) {
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oc.cPrint("(");
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oc.cPrint(Type.cName[s]);
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oc.cPrint(")");
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if (s == Type.BOOLEAN) {
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oc.cPrint("(");
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isBool = true;
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}
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s = Type.INT;
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} else if (s >= Type.CLASSINTERFACE) {
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s = Type.CLASSINTERFACE;
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}
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oc.cPrint("JCGO_ARR_INTERNALACC(");
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oc.cPrint(Type.cName[s]);
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oc.cPrint(", ");
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oc.cPrint(s != Type.CLASSINTERFACE ? Type.name[s]
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: "object");
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oc.cPrint("Args, ");
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oc.cPrint(Integer.toString(indices[s - Type.INT]++));
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oc.cPrint(")");
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if (isBool) {
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oc.cPrint("!= 0)");
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}
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next = true;
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} else if (s <= Type.INT) {
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indices[0]++;
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}
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}
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} while (--type > Type.NULLREF);
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}
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oc.cPrint(")");
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if (s0 == Type.BOOLEAN) {
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oc.cPrint("? 1\003 :\003 0");
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}
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oc.cPrint(";");
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if (s0 < Type.CLASSINTERFACE) {
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oc.cPrint("return ");
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oc.cPrint(LexTerm.NULL_STR);
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oc.cPrint(";");
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}
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oc.cPrint("}\n\n");
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}
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}
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