PyLongDigitsWrapper (ob_digits) fix PInt case

cosminbasca · cosminbasca · commit fc1180f70912 · 2020-08-06T12:30:47.000+02:00
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/PyLongDigitsWrapper.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/PyLongDigitsWrapper.java
@@ -142,9 +142,9 @@ final Object readArrayElement(long index,
                 }
                 return (val >> (longShift * index)) & longMask;
             } else {
-                byte[] bytes = ((PInt) delegate).toByteArray();
+                byte[] bytes = ((PInt) delegate).abs().toByteArray();
                 // the cast to int is safe since the length check already succeeded
-                return getUInt32(bytes, (int) index, longShift);
+                return getUInt32(bytes, (int) index, longShift) & longMask;
             }
         }
         throw InvalidArrayIndexException.create(index);

Original file line number	Diff line number	Diff line change
`@@ -142,9 +142,9 @@ final Object readArrayElement(long index,`
`142`	`142`	`}`
`143`	`143`	`return (val >> (longShift * index)) & longMask;`
`144`	`144`	`} else {`
`145`		`- byte[] bytes = ((PInt) delegate).toByteArray();`
	`145`	`+ byte[] bytes = ((PInt) delegate).abs().toByteArray();`
`146`	`146`	`// the cast to int is safe since the length check already succeeded`
`147`		`- return getUInt32(bytes, (int) index, longShift);`
	`147`	`+ return getUInt32(bytes, (int) index, longShift) & longMask;`
`148`	`148`	`}`
`149`	`149`	`}`
`150`	`150`	`throw InvalidArrayIndexException.create(index);`