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Add a check to Item.getOffset() and getIndex() to ensure the item has been placed

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This commit is contained in:
Ben Gruver 2012-06-05 13:23:11 -07:00
parent b71c12967b
commit 1ffc028a3b
1 changed files with 5 additions and 0 deletions
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5
dexlib/src/main/java/org/jf/dexlib/Item.java
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@ -28,6 +28,7 @@
package org.jf.dexlib; package org.jf.dexlib;
import com.google.common.base.Preconditions;
import org.jf.dexlib.Util.AlignmentUtils; import org.jf.dexlib.Util.AlignmentUtils;
import org.jf.dexlib.Util.AnnotatedOutput; import org.jf.dexlib.Util.AnnotatedOutput;
import org.jf.dexlib.Util.ExceptionWithContext; import org.jf.dexlib.Util.ExceptionWithContext;
@ -191,6 +192,8 @@ public abstract class Item<T extends Item> implements Comparable<T> {
* @return the offset in the dex file where this item is located * @return the offset in the dex file where this item is located
*/ */
public int getOffset() { public int getOffset() {
Preconditions.checkState(offset != -1,
"The offset is not set until the DexFile containing this item is placed.");
return offset; return offset;
} }
@ -198,6 +201,8 @@ public abstract class Item<T extends Item> implements Comparable<T> {
* @return the index of this item within the item's containing section * @return the index of this item within the item's containing section
*/ */
public int getIndex() { public int getIndex() {
Preconditions.checkState(index != -1,
"The index is not set until the DexFile containing this item is placed.");
return index; return index;
} }