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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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18
javascript/ql/lib/semmle/javascript/internal/BasicBlockInternal.qll
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@@ -372,16 +372,28 @@ module Public {
module Cfg implements BB::CfgSig<Location> {
private import javascript as Js
private import codeql.util.Unit
private import codeql.controlflow.SuccessorType
class ControlFlowNode = Js::ControlFlowNode;
class SuccessorType = Unit;
private predicate conditionSucc(BasicBlock bb1, BasicBlock bb2, boolean branch) {
exists(ConditionGuardNode g |
bb1 = g.getTest().getBasicBlock() and
bb2 = g.getBasicBlock() and
branch = g.getOutcome()
)
}
class BasicBlock extends FinalBasicBlock {
BasicBlock getASuccessor() { result = super.getASuccessor() }
BasicBlock getASuccessor(SuccessorType t) { result = super.getASuccessor() and exists(t) }
BasicBlock getASuccessor(SuccessorType t) {
conditionSucc(this, result, t.(BooleanSuccessor).getValue())
or
result = super.getASuccessor() and
t instanceof DirectSuccessor and
not conditionSucc(this, result, _)
}
predicate strictlyDominates(BasicBlock bb) {
this.(ReachableBasicBlock).strictlyDominates(bb)