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@Nullable -> @Contract("null -> null") for StringRef

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(cherry picked from commit 2d7f630992e2b72d10b078f3ff3caf4f452f5625)
This commit is contained in:
Artem Khvastunov
2017-04-07 20:02:54 +02:00
parent 4c3356ae3e
commit 873ae2e4ee
1 changed files with 4 additions and 3 deletions
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platform/util/src/com/intellij/util/io/StringRef.java
+4 -3
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@@ -1,5 +1,5 @@
/*
* Copyright 2000-2012 JetBrains s.r.o.
* Copyright 2000-2017 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -15,6 +15,7 @@
*/
package com.intellij.util.io;
import org.jetbrains.annotations.Contract;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@@ -92,12 +93,12 @@ public class StringRef {
return that == this || that instanceof StringRef && toString().equals(that.toString());
}
@Nullable
@Contract("null -> null")
public static String toString(@Nullable StringRef ref) {
return ref != null ? ref.getString() : null;
}
@Nullable
@Contract("null -> null; !null -> !null")
public static StringRef fromString(@Nullable String source) {
return source == null ? null : new StringRef(source);
}