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ControlFlowAnalyzer: assign initialized array elements to unknown to drop locality if necessary

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Fixes IDEA-210027 Variable in dataflow remains local when used inside array initializer
This commit is contained in:
Tagir Valeev
2019-04-02 11:24:34 +07:00
parent 90cfb46930
commit 4af91368ca
2 changed files with 19 additions and 6 deletions
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java/java-tests/testData/inspection/dataFlow/fixture/AdvancedArrayAccess.java
+12
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@@ -218,4 +218,16 @@ class AdvancedArrayAccess {
if(<warning descr="Condition 'arr2[32] == 32' is always 'true'">arr2[32] == 32</warning>) {}
if(<warning descr="Condition 'arr2[33] == 33' is always 'true'">arr2[33] == 33</warning>) {}
}
private static void change(Object[] x) {
((String[]) x[0])[0] = "OK";
}
// IDEA-210027
public static void main(String[] args) {
String[] array = new String[] { null };
change(new Object[] { array });
System.out.println(array[0]); // <-- Value 'array[0]' is always 'null'
}
}