Use empty storage for empty tuple

msimacek · msimacek · commit 1a83bb1ef35f · 2020-01-23T10:01:06.000+01:00
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/object/PythonObjectFactory.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/object/PythonObjectFactory.java
@@ -126,6 +126,7 @@
 import com.oracle.graal.python.runtime.sequence.storage.ByteSequenceStorage;
 import com.oracle.graal.python.runtime.sequence.storage.CharSequenceStorage;
 import com.oracle.graal.python.runtime.sequence.storage.DoubleSequenceStorage;
+import com.oracle.graal.python.runtime.sequence.storage.EmptySequenceStorage;
 import com.oracle.graal.python.runtime.sequence.storage.IntSequenceStorage;
 import com.oracle.graal.python.runtime.sequence.storage.LongSequenceStorage;
 import com.oracle.graal.python.runtime.sequence.storage.SequenceStorage;
@@ -287,7 +288,7 @@ public final PTuple createEmptyTuple() {
     }
 
     public final PTuple createEmptyTuple(LazyPythonClass cls) {
-        return trace(new PTuple(cls, new Object[0]));
+        return trace(new PTuple(cls, EmptySequenceStorage.INSTANCE));
     }
 
     public final PTuple createTuple(Object[] objects) {

Original file line number	Diff line number	Diff line change
`@@ -126,6 +126,7 @@`
`126`	`126`	`import com.oracle.graal.python.runtime.sequence.storage.ByteSequenceStorage;`
`127`	`127`	`import com.oracle.graal.python.runtime.sequence.storage.CharSequenceStorage;`
`128`	`128`	`import com.oracle.graal.python.runtime.sequence.storage.DoubleSequenceStorage;`
	`129`	`+import com.oracle.graal.python.runtime.sequence.storage.EmptySequenceStorage;`
`129`	`130`	`import com.oracle.graal.python.runtime.sequence.storage.IntSequenceStorage;`
`130`	`131`	`import com.oracle.graal.python.runtime.sequence.storage.LongSequenceStorage;`
`131`	`132`	`import com.oracle.graal.python.runtime.sequence.storage.SequenceStorage;`
`@@ -287,7 +288,7 @@ public final PTuple createEmptyTuple() {`
`287`	`288`	`}`
`288`	`289`
`289`	`290`	`public final PTuple createEmptyTuple(LazyPythonClass cls) {`
`290`		`- return trace(new PTuple(cls, new Object[0]));`
	`291`	`+ return trace(new PTuple(cls, EmptySequenceStorage.INSTANCE));`
`291`	`292`	`}`
`292`	`293`
`293`	`294`	`public final PTuple createTuple(Object[] objects) {`