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python: refactor TDataFlowCall

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- Branch predicates are made simple. In particular, they do not try to detect library calls.
- All branches based on `CallNode`s are gathered into one.
- That branch has been given a class `NonSpecialCall`, which is the new parent of call classes based on `CallNode`s. (Those classes now have more involved charpreds.)
- A new such class, 'LambdaCall` has been split out from `FunctionCall` to allow the latter to replace its
  general `CallNode` field with a specific `FunctionValue` one.
- `NonSpecialCall` is not an abstract class, but it has some abstract overrides. Therefor, it is not
  considered a resolved call in the test `UnresolvedCalls.qll`.
This commit is contained in:
Rasmus Lerchedahl Petersen
2022-04-19 12:39:26 +02:00
committed by GitHub
parent d85844bb89
commit 506efcf051
4 changed files with 65 additions and 52 deletions
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python/ql/test/experimental/dataflow/coverage/classesCallGraph.expected
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@@ -1,3 +1,4 @@
| classes.py:45:16:45:35 | ControlFlowNode for Attribute() | classes.py:45:16:45:35 | ControlFlowNode for Attribute() |
| classes.py:60:17:60:27 | [pre objCreate] ControlFlowNode for With_init() | classes.py:54:18:54:21 | ControlFlowNode for self |
| classes.py:242:9:242:24 | ControlFlowNode for set() | classes.py:242:9:242:24 | ControlFlowNode for set() |
| classes.py:247:9:247:30 | ControlFlowNode for frozenset() | classes.py:247:9:247:30 | ControlFlowNode for frozenset() |