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53 lines
1.8 KiB
Plaintext
53 lines
1.8 KiB
Plaintext
import csharp
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import semmle.code.csharp.controlflow.internal.Completion
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import semmle.code.csharp.controlflow.internal.PreBasicBlocks
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import ControlFlow
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import semmle.code.csharp.controlflow.internal.ControlFlowGraphImpl
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import semmle.code.csharp.controlflow.internal.Splitting
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import Consistency
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predicate bbStartInconsistency(ControlFlowElement cfe) {
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exists(ControlFlow::BasicBlock bb | bb.getFirstNode() = cfe.getAControlFlowNode()) and
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not cfe = any(PreBasicBlock bb).getFirstElement()
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}
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predicate bbSuccInconsistency(ControlFlowElement pred, ControlFlowElement succ) {
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exists(ControlFlow::BasicBlock predBB, ControlFlow::BasicBlock succBB |
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predBB.getLastNode() = pred.getAControlFlowNode() and
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succBB = predBB.getASuccessor() and
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succBB.getFirstNode() = succ.getAControlFlowNode()
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) and
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not exists(PreBasicBlock predBB, PreBasicBlock succBB |
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predBB.getLastElement() = pred and
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succBB = predBB.getASuccessor() and
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succBB.getFirstElement() = succ
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)
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}
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predicate bbIntraSuccInconsistency(ControlFlowElement pred, ControlFlowElement succ) {
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exists(ControlFlow::BasicBlock bb, int i |
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pred.getAControlFlowNode() = bb.getNode(i) and
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succ.getAControlFlowNode() = bb.getNode(i + 1)
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) and
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not exists(PreBasicBlock bb |
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bb.getLastElement() = pred and
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bb.getASuccessor().getFirstElement() = succ
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) and
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not exists(PreBasicBlock bb, int i |
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bb.getElement(i) = pred and
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bb.getElement(i + 1) = succ
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)
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}
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query predicate preBasicBlockConsistency(ControlFlowElement cfe1, ControlFlowElement cfe2, string s) {
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bbStartInconsistency(cfe1) and
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cfe2 = cfe1 and
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s = "start inconsistency"
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or
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bbSuccInconsistency(cfe1, cfe2) and
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s = "succ inconsistency"
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or
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bbIntraSuccInconsistency(cfe1, cfe2) and
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s = "intra succ inconsistency"
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}
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