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Diffstat (limited to 'src/proguard/classfile/editor/ElementValuesEditor.java')
| -rw-r--r-- | src/proguard/classfile/editor/ElementValuesEditor.java | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/src/proguard/classfile/editor/ElementValuesEditor.java b/src/proguard/classfile/editor/ElementValuesEditor.java deleted file mode 100644 index c4add27..0000000 --- a/src/proguard/classfile/editor/ElementValuesEditor.java +++ /dev/null @@ -1,238 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * 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.editor; - -import proguard.classfile.ProgramClass; -import proguard.classfile.attribute.annotation.*; - -/** - * This class can add and delete element values to and from a given target - * annotation default attribute, annotation, or array element value. Element - * values to be added must be filled out beforehand, including their references - * to the constant pool. - * - * @author Eric Lafortune - */ -public class ElementValuesEditor -{ - private final ProgramClass targetClass; - private final Annotation targetAnnotation; - private final ArrayElementValue targetArrayElementValue; - private final boolean replaceElementValues; - - - /** - * Creates a new ElementValuesEditor that will edit element values in the - * given target annotation. - */ - public ElementValuesEditor(ProgramClass targetClass, - Annotation targetAnnotation, - boolean replaceElementValues) - { - this.targetClass = targetClass; - this.targetAnnotation = targetAnnotation; - this.targetArrayElementValue = null; - this.replaceElementValues = replaceElementValues; - } - - - /** - * Creates a new ElementValuesEditor that will edit element values in the - * given target array element value. - */ - public ElementValuesEditor(ProgramClass targetClass, - ArrayElementValue targetArrayElementValue, - boolean replaceElementValues) - { - this.targetClass = targetClass; - this.targetAnnotation = null; - this.targetArrayElementValue = targetArrayElementValue; - this.replaceElementValues = replaceElementValues; - } - - - /** - * Adds the given elementValue to the target. - */ - public void addElementValue(ElementValue elementValue) - { - // What's the target? - if (targetAnnotation != null) - { - // Try to replace an existing element value. - if (!replaceElementValues || - !replaceElementValue(targetAnnotation.u2elementValuesCount, - targetAnnotation.elementValues, - elementValue)) - { - // Otherwise append the element value. - targetAnnotation.elementValues = - addElementValue(targetAnnotation.u2elementValuesCount, - targetAnnotation.elementValues, - elementValue); - - targetAnnotation.u2elementValuesCount++; - } - } - else - { - // Try to replace an existing element value. - if (!replaceElementValues || - !replaceElementValue(targetArrayElementValue.u2elementValuesCount, - targetArrayElementValue.elementValues, - elementValue)) - { - // Otherwise append the element value. - targetArrayElementValue.elementValues = - addElementValue(targetArrayElementValue.u2elementValuesCount, - targetArrayElementValue.elementValues, - elementValue); - - targetArrayElementValue.u2elementValuesCount++; - } - } - } - - - /** - * Deletes the given elementValue to the target. - */ - public void deleteElementValue(String elementValueMethodName) - { - // What's the target? - if (targetAnnotation != null) - { - // Delete the element value to the target annotation. - targetAnnotation.u2elementValuesCount = - deleteElementValue(targetAnnotation.u2elementValuesCount, - targetAnnotation.elementValues, - elementValueMethodName); - } - else - { - // Delete the element value to the target array element value. - targetArrayElementValue.u2elementValuesCount = - deleteElementValue(targetArrayElementValue.u2elementValuesCount, - targetArrayElementValue.elementValues, - elementValueMethodName); - } - } - - - // Small utility methods. - - /** - * Tries put the given element value in place of an existing element value - * of the same name, returning whether it was present. - */ - private boolean replaceElementValue(int elementValuesCount, - ElementValue[] elementValues, - ElementValue elementValue) - { - // Find the element value with the same name. - int index = findElementValue(elementValuesCount, - elementValues, - elementValue.getMethodName(targetClass)); - if (index < 0) - { - return false; - } - - elementValues[index] = elementValue; - - return true; - } - - - /** - * Appends the given element value to the given array of element values, - * creating a new array if necessary. - */ - private ElementValue[] addElementValue(int elementValuesCount, - ElementValue[] elementValues, - ElementValue elementValue) - { - // Is the array too small to contain the additional elementValue? - if (elementValues.length <= elementValuesCount) - { - // Create a new array and copy the elementValues into it. - ElementValue[] newElementValues = new ElementValue[elementValuesCount + 1]; - System.arraycopy(elementValues, 0, - newElementValues, 0, - elementValuesCount); - elementValues = newElementValues; - } - - // Append the elementValue. - elementValues[elementValuesCount] = elementValue; - - return elementValues; - } - - - /** - * Deletes the element values with the given name from the given array of - * element values, returning the new number of element values. - */ - private int deleteElementValue(int elementValuesCount, - ElementValue[] elementValues, - String elementValueMethodName) - { - // Find the element value. - int index = findElementValue(elementValuesCount, - elementValues, - elementValueMethodName); - if (index < 0) - { - return elementValuesCount; - } - - // Shift the other element values in the array. - System.arraycopy(elementValues, index + 1, - elementValues, index, - elementValuesCount - index - 1); - - // Clear the last entry in the array. - elementValues[--elementValuesCount] = null; - - return elementValuesCount; - } - - - /** - * Finds the index of the element value with the given name in the given - * array of element values. - */ - private int findElementValue(int elementValuesCount, - ElementValue[] elementValues, - String elementValueName) - { - for (int index = 0; index < elementValuesCount; index++) - { - if (elementValues[index].getMethodName(targetClass).equals(elementValueName)) - { - return index; - } - } - - return -1; - } -}
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