diff options
Diffstat (limited to 'third_party/java/proguard/proguard5.3.3/src/proguard/optimize/peephole/HorizontalClassMerger.java')
| -rw-r--r-- | third_party/java/proguard/proguard5.3.3/src/proguard/optimize/peephole/HorizontalClassMerger.java | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/third_party/java/proguard/proguard5.3.3/src/proguard/optimize/peephole/HorizontalClassMerger.java b/third_party/java/proguard/proguard5.3.3/src/proguard/optimize/peephole/HorizontalClassMerger.java new file mode 100644 index 0000000000..8f57574853 --- /dev/null +++ b/third_party/java/proguard/proguard5.3.3/src/proguard/optimize/peephole/HorizontalClassMerger.java @@ -0,0 +1,89 @@ +/* + * ProGuard -- shrinking, optimization, obfuscation, and preverification + * of Java bytecode. + * + * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare + * + * This program 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 of the License, or (at your option) + * any later version. + * + * This program 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 for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +package proguard.optimize.peephole; + +import proguard.classfile.ProgramClass; +import proguard.classfile.util.SimplifiedVisitor; +import proguard.classfile.visitor.*; + +/** + * This ClassVisitor inlines siblings in the program classes that it visits, + * whenever possible. + * + * @see ClassMerger + * @author Eric Lafortune + */ +public class HorizontalClassMerger +extends SimplifiedVisitor +implements ClassVisitor +{ + private final boolean allowAccessModification; + private final boolean mergeInterfacesAggressively; + private final ClassVisitor extraClassVisitor; + + + /** + * Creates a new HorizontalClassMerger. + * @param allowAccessModification specifies whether the access modifiers + * of classes can be changed in order to + * merge them. + * @param mergeInterfacesAggressively specifies whether interfaces may + * be merged aggressively. + */ + public HorizontalClassMerger(boolean allowAccessModification, + boolean mergeInterfacesAggressively) + { + this(allowAccessModification, mergeInterfacesAggressively, null); + } + + + /** + * Creates a new VerticalClassMerger. + * @param allowAccessModification specifies whether the access modifiers + * of classes can be changed in order to + * merge them. + * @param mergeInterfacesAggressively specifies whether interfaces may + * be merged aggressively. + * @param extraClassVisitor an optional extra visitor for all + * merged classes. + */ + public HorizontalClassMerger(boolean allowAccessModification, + boolean mergeInterfacesAggressively, + ClassVisitor extraClassVisitor) + { + this.allowAccessModification = allowAccessModification; + this.mergeInterfacesAggressively = mergeInterfacesAggressively; + this.extraClassVisitor = extraClassVisitor; + } + + + // Implementations for ClassVisitor. + + public void visitProgramClass(ProgramClass programClass) + { + programClass.superClassConstantAccept(new ReferencedClassVisitor( + new SubclassTraveler( + new ClassMerger(programClass, + allowAccessModification, + mergeInterfacesAggressively, + extraClassVisitor)))); + } +}
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