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RecursiveInstanceIterator uses weak pointer to Layout too

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This commit is contained in:
Matthias Koefferlein
2022-02-07 22:09:57 +01:00
parent c0b38f3706
commit 79be9aba41
3 changed files with 51 additions and 8 deletions
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src/db/unit_tests/dbRecursiveInstanceIteratorTests.cc
+41
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@@ -619,3 +619,44 @@ TEST(4)
EXPECT_EQ (db::compare_layouts (boxes2layout (selected_boxes), boxes2layout (selected_boxes2), db::layout_diff::f_verbose, 0, 100 /*max diff lines*/), true);
}
TEST(5)
{
std::unique_ptr<db::Layout> g (new db::Layout ());
g->insert_layer (0);
g->insert_layer (1);
g->insert_layer (2);
db::Cell &c0 (g->cell (g->add_cell ()));
db::Cell &c1 (g->cell (g->add_cell ()));
db::Cell &c2 (g->cell (g->add_cell ()));
db::Cell &c3 (g->cell (g->add_cell ()));
db::Box b (0, 100, 1000, 1200);
c0.shapes (0).insert (b);
c1.shapes (0).insert (b);
c2.shapes (0).insert (b);
c3.shapes (0).insert (b);
c0.shapes (2).insert (b);
c0.shapes (2).insert (b.moved (db::Vector (50, 50)));
db::Trans tt;
c0.insert (db::CellInstArray (db::CellInst (c1.cell_index ()), tt));
c0.insert (db::CellInstArray (db::CellInst (c2.cell_index ()), db::Trans (db::Vector (100, -100))));
c0.insert (db::CellInstArray (db::CellInst (c3.cell_index ()), db::Trans (1)));
c2.insert (db::CellInstArray (db::CellInst (c3.cell_index ()), db::Trans (db::Vector (1100, 0))));
std::string x;
db::RecursiveInstanceIterator i1 (*g, c0, db::Box (0, 0, 100, 100));
x = collect(i1, *g);
EXPECT_EQ (x, "[$1]$2 r0 0,0/[$1]$3 r0 100,-100");
g.reset (new db::Layout ());
// now the layout is gone and the iterator stays silent (weak pointer to layout)
// NOTE: this only works on reset or re-initialization. Not during iteration.
i1.reset ();
x = collect(i1, *g);
EXPECT_EQ (x, "");
}