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C++ IR: Support for global virtual dispatch

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The IR data flow library now supports virtual dispatch with a library
that's similar to `security.TaintTracking`. In particular, it should
have the same performance characteristics. The main difference is that
non-recursive callers of `flowsFrom` now pass `_` instead of `true` for
`boolean allowFromArg`. This change allows flow through `return` to
actually work.
This commit is contained in:
Jonas Jensen
2020-01-15 13:19:06 +01:00
parent f7278d36e1
commit f4d0c5e905
4 changed files with 190 additions and 46 deletions
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6
cpp/ql/test/library-tests/dataflow/dataflow-tests/test_diff.expected
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@@ -10,8 +10,14 @@
| dispatch.cpp:16:37:16:42 | dispatch.cpp:40:15:40:23 | IR only |
| dispatch.cpp:22:37:22:42 | dispatch.cpp:31:16:31:24 | IR only |
| dispatch.cpp:22:37:22:42 | dispatch.cpp:39:15:39:23 | IR only |
| dispatch.cpp:22:37:22:42 | dispatch.cpp:55:22:55:30 | IR only |
| dispatch.cpp:22:37:22:42 | dispatch.cpp:58:28:58:36 | IR only |
| dispatch.cpp:33:18:33:23 | dispatch.cpp:23:38:23:38 | IR only |
| dispatch.cpp:41:17:41:22 | dispatch.cpp:23:38:23:38 | IR only |
| dispatch.cpp:69:15:69:20 | dispatch.cpp:23:38:23:38 | IR only |
| dispatch.cpp:73:14:73:19 | dispatch.cpp:23:38:23:38 | IR only |
| dispatch.cpp:81:13:81:18 | dispatch.cpp:23:38:23:38 | IR only |
| dispatch.cpp:107:17:107:22 | dispatch.cpp:96:8:96:8 | IR only |
| lambdas.cpp:8:10:8:15 | lambdas.cpp:14:3:14:6 | AST only |
| lambdas.cpp:8:10:8:15 | lambdas.cpp:18:8:18:8 | AST only |
| lambdas.cpp:8:10:8:15 | lambdas.cpp:21:3:21:6 | AST only |