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11c71fdd18
This commit removes SSA nodes from the data flow graph. Specifically, for a definition and use such as ```python x = expr y = x + 2 ``` we used to have flow from `expr` to an SSA variable representing x and from that SSA variable to the use of `x` in the definition of `y`. Now we instead have flow from `expr` to the control flow node for `x` at line 1 and from there to the control flow node for `x` at line 2. Specific changes: - `EssaNode` from the data flow layer no longer exists. - Several glue steps between `EssaNode`s and `CfgNode`s have been deleted. - Entry nodes are now admitted as `CfgNodes` in the data flow layer (they were filtered out before). - Entry nodes now have a new `toString` taking into account that the module name may be ambigous. - Some tests have been rewritten to accomodate the changes, but only `python/ql/test/experimental/dataflow/basic/maximalFlowsConfig.qll` should have semantic changes. - Comments have been updated - Test output has been updated, but apart from `python/ql/test/experimental/dataflow/basic/maximalFlows.expected` only `python/ql/test/experimental/dataflow/typetracking-summaries/summaries.py` should have a semantic change. This is a bonus fix, probably meaning that something was never connected up correctly.
28 lines
2.8 KiB
Plaintext
28 lines
2.8 KiB
Plaintext
| class_example.py:0:0:0:0 | Module class_example | class_example.py:0:0:0:0 | Entry node for Module class_example |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:1:1:1:3 | ControlFlowNode for wat |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:1:7:1:7 | ControlFlowNode for IntegerLiteral |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:3:1:3:10 | ControlFlowNode for ClassExpr |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:3:7:3:9 | ControlFlowNode for Wat |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:4:5:4:7 | ControlFlowNode for wat |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:4:11:4:11 | ControlFlowNode for IntegerLiteral |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:5:5:5:9 | ControlFlowNode for print |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:5:5:5:26 | ControlFlowNode for print() |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:5:11:5:20 | ControlFlowNode for Str |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:5:23:5:25 | ControlFlowNode for wat |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:7:1:7:5 | ControlFlowNode for print |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:7:1:7:23 | ControlFlowNode for print() |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:7:7:7:17 | ControlFlowNode for Str |
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| class_example.py:0:0:0:0 | Module class_example | class_example.py:7:20:7:22 | ControlFlowNode for wat |
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| generator.py:0:0:0:0 | Module generator | generator.py:0:0:0:0 | Entry node for Module generator |
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| generator.py:0:0:0:0 | Module generator | generator.py:1:1:1:23 | ControlFlowNode for FunctionExpr |
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| generator.py:0:0:0:0 | Module generator | generator.py:1:5:1:18 | ControlFlowNode for generator_func |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:1:20:1:21 | ControlFlowNode for xs |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:12:2:26 | ControlFlowNode for .0 |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:12:2:26 | ControlFlowNode for .0 |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:12:2:26 | ControlFlowNode for ListComp |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:12:2:26 | Entry node for Function listcomp |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:13:2:13 | ControlFlowNode for Yield |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:13:2:13 | ControlFlowNode for x |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:19:2:19 | ControlFlowNode for x |
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| generator.py:1:1:1:23 | Function generator_func | generator.py:2:24:2:25 | ControlFlowNode for xs |
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