diff options
Diffstat (limited to 'third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java')
-rw-r--r-- | third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java b/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java new file mode 100644 index 0000000000..8a16762709 --- /dev/null +++ b/third_party/java/proguard/proguard5.3.3/src/proguard/classfile/attribute/preverification/SameOneFrame.java @@ -0,0 +1,115 @@ +/* + * 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.classfile.attribute.preverification; + +import proguard.classfile.*; +import proguard.classfile.attribute.CodeAttribute; +import proguard.classfile.attribute.preverification.visitor.*; + +/** + * This StackMapFrame represents a "same locals 1 stack item frame" or a + * "same locals 1 stack item frame extended". + * + * @author Eric Lafortune + */ +public class SameOneFrame extends StackMapFrame +{ + public VerificationType stackItem; + + + /** + * Creates an uninitialized SameOneFrame. + */ + public SameOneFrame() + { + } + + + /** + * Creates a SameOneFrame with the given tag. + */ + public SameOneFrame(int tag) + { + u2offsetDelta = tag - SAME_ONE_FRAME; + } + + + /** + * Creates a SameOneFrame with the given stack verification type. + */ + public SameOneFrame(VerificationType stackItem) + { + this.stackItem = stackItem; + } + + + /** + * Applies the given verification type visitor to the stack item. + */ + public void stackItemAccept(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VerificationTypeVisitor verificationTypeVisitor) + { + stackItem.accept(clazz, method, codeAttribute, offset, verificationTypeVisitor); + } + + + // Implementations for StackMapFrame. + + public int getTag() + { + return u2offsetDelta < 64 ? + SAME_ONE_FRAME + u2offsetDelta : + SAME_ONE_FRAME_EXTENDED; + } + + + public void accept(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, StackMapFrameVisitor stackMapFrameVisitor) + { + stackMapFrameVisitor.visitSameOneFrame(clazz, method, codeAttribute, offset, this); + } + + + // Implementations for Object. + + public boolean equals(Object object) + { + if (!super.equals(object)) + { + return false; + } + + SameOneFrame other = (SameOneFrame)object; + + return this.u2offsetDelta == other.u2offsetDelta && + this.stackItem.equals(other.stackItem); + } + + + public int hashCode() + { + return super.hashCode() ^ stackItem.hashCode(); + } + + + public String toString() + { + return super.toString()+"Var: ..., Stack: ["+stackItem.toString()+"]"; + } +} |