deep-c-rsc/JCGO/jtrsrc/com/ivmaisoft/jcgo/StaticInitializer.java
2021-07-16 17:12:20 -05:00

100 lines
3.5 KiB
Java

/*
* @(#) $(JCGO)/jtrsrc/com/ivmaisoft/jcgo/StaticInitializer.java --
* a part of JCGO translator.
**
* Project: JCGO (http://www.ivmaisoft.com/jcgo/)
* Copyright (C) 2001-2012 Ivan Maidanski <ivmai@mail.ru>
* All rights reserved.
*/
/*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
**
* This software is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License (GPL) for more details.
**
* Linking this library statically or dynamically with other modules is
* making a combined work based on this library. Thus, the terms and
* conditions of the GNU General Public License cover the whole
* combination.
**
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce an
* executable, regardless of the license terms of these independent
* modules, and to copy and distribute the resulting executable under
* terms of your choice, provided that you also meet, for each linked
* independent module, the terms and conditions of the license of that
* module. An independent module is a module which is not derived from
* or based on this library. If you modify this library, you may extend
* this exception to your version of the library, but you are not
* obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
package com.ivmaisoft.jcgo;
/**
* Grammar production for a static or instance initializer.
**
* Format: STATIC/Empty Block
*/
final class StaticInitializer extends LexNode {
private InitializerPart init;
private MethodDefinition md;
StaticInitializer(Term b) {
super(b);
}
void processPass0(Context c) {
assertCond(c.currentClass != null);
if ((c.modifiers & AccModifier.STATIC) != 0) {
c.currentClass.setMayContainClinit();
}
c.passZeroMethodDefnTerm = this;
terms[0].processPass0(c);
c.passZeroMethodDefnTerm = null;
}
void processPass1(Context c) {
assertCond(c.currentClass != null);
if ((c.modifiers & (AccModifier.PUBLIC | AccModifier.PRIVATE
| AccModifier.PROTECTED | AccModifier.FINAL
| AccModifier.SYNCHRONIZED | AccModifier.VOLATILE
| AccModifier.TRANSIENT | AccModifier.NATIVE
| AccModifier.INTERFACE | AccModifier.ABSTRACT | AccModifier.STRICT)) != 0) {
fatalError(c, "Illegal modifier specified for the block");
}
md = new MethodDefinition(c,
(c.modifiers & AccModifier.STATIC) != 0 ? "<clinit>"
: "<init0>", c.modifiers,
Main.dict.classTable[Type.VOID], Empty.newTerm(),
Empty.newTerm(), terms[0]);
init = c.currentClass.addInitializer(terms[0], md.isClassMethod());
}
MethodDefinition superMethodCall() {
return md;
}
BranchContext staticInitializerPass(BranchContext prevBranch,
boolean isStatic) {
if (md.isClassMethod() == isStatic) {
assertCond(init != null);
prevBranch = md.producePassOne(prevBranch);
if (md.hasNonEmptyBody()) {
init.setCode("", null);
}
}
return prevBranch;
}
}