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Merge pull request #16751 from aschackmull/java/sndlevelscope-fix

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Java: Calculate 2nd level scopes for implicit instance accesses.
This commit is contained in:
Anders Schack-Mulligen
2024-06-17 13:10:46 +02:00
committed by GitHub
parent e1317ddcb6 b8b95fd81d
commit 96b6ddefe0
2 changed files with 16 additions and 2 deletions
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11
java/ql/lib/semmle/code/java/dataflow/internal/DataFlowPrivate.qll
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@@ -8,6 +8,7 @@ private import ContainerFlow
private import semmle.code.java.dataflow.FlowSteps
private import semmle.code.java.dataflow.FlowSummary
private import semmle.code.java.dataflow.ExternalFlow
private import semmle.code.java.dataflow.InstanceAccess
private import FlowSummaryImpl as FlowSummaryImpl
private import DataFlowNodes
private import codeql.dataflow.VariableCapture as VariableCapture
@@ -710,8 +711,14 @@ class DataFlowSecondLevelScope extends TDataFlowSecondLevelScope {
}
private Expr getRelatedExpr(Node n) {
n.asExpr() = result or
n.(PostUpdateNode).getPreUpdateNode().asExpr() = result
n.asExpr() = result
or
exists(InstanceAccessExt iae | iae = n.(ImplicitInstanceAccess).getInstanceAccess() |
iae.isImplicitFieldQualifier(result) or
iae.isImplicitMethodQualifier(result)
)
or
getRelatedExpr(n.(PostUpdateNode).getPreUpdateNode()) = result
}
/** Gets the second-level scope containing the node `n`, if any. */