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Merge pull request #20300 from aschackmull/cfg/successortype

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Shared: Add a shared SuccessorType implementation
This commit is contained in:
Anders Schack-Mulligen
2025-09-02 14:09:35 +02:00
committed by GitHub
parent d3d737b383 3d4d347150
commit f833fe0e6e
75 changed files with 2472 additions and 4366 deletions
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23
python/ql/lib/semmle/python/Flow.qll
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@@ -1259,9 +1259,9 @@ private class ControlFlowNodeAlias = ControlFlowNode;
final private class FinalBasicBlock = BasicBlock;
module Cfg implements BB::CfgSig<Location> {
class ControlFlowNode = ControlFlowNodeAlias;
private import codeql.controlflow.SuccessorType
class SuccessorType = Unit;
class ControlFlowNode = ControlFlowNodeAlias;
class BasicBlock extends FinalBasicBlock {
// Note `PY:BasicBlock` does not have a `getLocation`.
@@ -1275,7 +1275,24 @@ module Cfg implements BB::CfgSig<Location> {
BasicBlock getASuccessor() { result = super.getASuccessor() }
BasicBlock getASuccessor(SuccessorType t) { result = super.getASuccessor() and exists(t) }
private BasicBlock getANonDirectSuccessor(SuccessorType t) {
result = this.getATrueSuccessor() and
t.(BooleanSuccessor).getValue() = true
or
result = this.getAFalseSuccessor() and
t.(BooleanSuccessor).getValue() = false
or
result = this.getAnExceptionalSuccessor() and
t instanceof ExceptionSuccessor
}
BasicBlock getASuccessor(SuccessorType t) {
result = this.getANonDirectSuccessor(t)
or
result = super.getASuccessor() and
t instanceof DirectSuccessor and
not result = this.getANonDirectSuccessor(_)
}
predicate strictlyDominates(BasicBlock bb) { super.strictlyDominates(bb) }