diff options
Diffstat (limited to 'plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/main/EnumProcessor.java')
-rw-r--r-- | plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/main/EnumProcessor.java | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/main/EnumProcessor.java b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/main/EnumProcessor.java new file mode 100644 index 000000000000..be408e8bbc3b --- /dev/null +++ b/plugins/java-decompiler/engine/src/org/jetbrains/java/decompiler/main/EnumProcessor.java @@ -0,0 +1,118 @@ +/* + * Copyright 2000-2014 JetBrains s.r.o. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.jetbrains.java.decompiler.main; + +import org.jetbrains.java.decompiler.main.rels.ClassWrapper; +import org.jetbrains.java.decompiler.main.rels.MethodWrapper; +import org.jetbrains.java.decompiler.modules.decompiler.exps.Exprent; +import org.jetbrains.java.decompiler.modules.decompiler.exps.InvocationExprent; +import org.jetbrains.java.decompiler.modules.decompiler.exps.VarExprent; +import org.jetbrains.java.decompiler.modules.decompiler.stats.Statement; +import org.jetbrains.java.decompiler.modules.decompiler.vars.VarVersionPaar; +import org.jetbrains.java.decompiler.struct.StructClass; +import org.jetbrains.java.decompiler.struct.StructField; +import org.jetbrains.java.decompiler.struct.StructMethod; +import org.jetbrains.java.decompiler.util.InterpreterUtil; + +public class EnumProcessor { + + public static void clearEnum(ClassWrapper wrapper) { + StructClass cl = wrapper.getClassStruct(); + + // hide values/valueOf methods and super() invocations + for (MethodWrapper method : wrapper.getMethods()) { + StructMethod mt = method.methodStruct; + String name = mt.getName(); + String descriptor = mt.getDescriptor(); + + if ("values".equals(name)) { + if (descriptor.equals("()[L" + cl.qualifiedName + ";")) { + wrapper.getHiddenMembers().add(InterpreterUtil.makeUniqueKey(name, descriptor)); + } + } + else if ("valueOf".equals(name)) { + if (descriptor.equals("(Ljava/lang/String;)L" + cl.qualifiedName + ";")) { + wrapper.getHiddenMembers().add(InterpreterUtil.makeUniqueKey(name, descriptor)); + } + } + else if ("<init>".equals(name)) { + Statement firstData = findFirstData(method.root); + if (firstData != null && !firstData.getExprents().isEmpty()) { + Exprent exprent = firstData.getExprents().get(0); + if (exprent.type == Exprent.EXPRENT_INVOCATION) { + InvocationExprent invexpr = (InvocationExprent)exprent; + if (isInvocationSuperConstructor(invexpr, method, wrapper)) { + firstData.getExprents().remove(0); + } + } + } + } + } + + // hide synthetic fields of enum and it's constants + for (StructField fd : cl.getFields()) { + String descriptor = fd.getDescriptor(); + if (fd.isSynthetic() && descriptor.equals("[L" + cl.qualifiedName + ";")) { + wrapper.getHiddenMembers().add(InterpreterUtil.makeUniqueKey(fd.getName(), descriptor)); + } + } + } + + // FIXME: move to a util class (see also InitializerProcessor) + private static Statement findFirstData(Statement stat) { + + if (stat.getExprents() != null) { + return stat; + } + else { + if (stat.isLabeled()) { + return null; + } + + switch (stat.type) { + case Statement.TYPE_SEQUENCE: + case Statement.TYPE_IF: + case Statement.TYPE_ROOT: + case Statement.TYPE_SWITCH: + case Statement.TYPE_SYNCRONIZED: + return findFirstData(stat.getFirst()); + default: + return null; + } + } + } + + // FIXME: move to util class (see also InitializerProcessor) + private static boolean isInvocationSuperConstructor(InvocationExprent inv, MethodWrapper meth, ClassWrapper wrapper) { + + if (inv.getFunctype() == InvocationExprent.TYP_INIT) { + if (inv.getInstance().type == Exprent.EXPRENT_VAR) { + VarExprent instvar = (VarExprent)inv.getInstance(); + VarVersionPaar varpaar = new VarVersionPaar(instvar); + + String classname = meth.varproc.getThisvars().get(varpaar); + + if (classname != null) { // any this instance. TODO: Restrict to current class? + if (!wrapper.getClassStruct().qualifiedName.equals(inv.getClassname())) { + return true; + } + } + } + } + + return false; + } +} |