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Java/C++/C#: Add field flow support for stores in nested fields.

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This commit is contained in:
Anders Schack-Mulligen
2019-08-19 12:39:42 +02:00
parent 4ea999872b
commit 6ff4fe38ec
7 changed files with 109 additions and 32 deletions
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64
java/ql/test/library-tests/dataflow/fields/D.java Normal file
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@@ -0,0 +1,64 @@
public class D {
Box2 boxfield;
public void f1() {
Elem e = new Elem();
Box2 b = new Box2(new Box1(null));
b.box.elem = e;
sinkWrap(b);
}
public void f2() {
Elem e = new Elem();
Box2 b = new Box2(new Box1(null));
b.box.setElem(e);
sinkWrap(b);
}
public void f3() {
Elem e = new Elem();
Box2 b = new Box2(new Box1(null));
b.getBox1().elem = e;
sinkWrap(b);
}
public void f4() {
Elem e = new Elem();
Box2 b = new Box2(new Box1(null));
b.getBox1().setElem(e);
sinkWrap(b);
}
public static void sinkWrap(Box2 b2) {
sink(b2.getBox1().getElem());
}
public void f5a() {
Elem e = new Elem();
boxfield = new Box2(new Box1(null));
boxfield.box.elem = e;
f5b();
}
private void f5b() {
sink(boxfield.box.elem);
}
public static void sink(Object o) { }
public static class Elem { }
public static class Box1 {
public Elem elem;
public Box1(Elem e) { elem = e; }
public Elem getElem() { return elem; }
public void setElem(Elem e) { elem = e; }
}
public static class Box2 {
public Box1 box;
public Box2(Box1 b) { box = b; }
public Box1 getBox1() { return box; }
public void setBox1(Box1 b) { box = b; }
}
}

5
java/ql/test/library-tests/dataflow/fields/flow.expected
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@@ -19,3 +19,8 @@
| C.java:4:27:4:36 | new Elem(...) | C.java:19:10:19:11 | s2 |
| C.java:6:28:6:37 | new Elem(...) | C.java:21:10:21:11 | s4 |
| C.java:14:15:14:24 | new Elem(...) | C.java:20:10:20:11 | s3 |
| D.java:5:14:5:23 | new Elem(...) | D.java:33:10:33:31 | getElem(...) |
| D.java:12:14:12:23 | new Elem(...) | D.java:33:10:33:31 | getElem(...) |
| D.java:19:14:19:23 | new Elem(...) | D.java:33:10:33:31 | getElem(...) |
| D.java:26:14:26:23 | new Elem(...) | D.java:33:10:33:31 | getElem(...) |
| D.java:37:14:37:23 | new Elem(...) | D.java:44:10:44:26 | boxfield.box.elem |