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C#: Add post-update nodes for arguments of struct type.

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This commit is contained in:
Michael Nebel
2026-02-27 10:04:10 +01:00
parent 4e63b83fd3
commit ec7e6e8e03
1 changed files with 3 additions and 2 deletions
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5
csharp/ql/lib/semmle/code/csharp/dataflow/internal/DataFlowPrivate.qll
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@@ -6,6 +6,7 @@ private import ControlFlowReachability
private import FlowSummaryImpl as FlowSummaryImpl
private import semmle.code.csharp.dataflow.FlowSummary as FlowSummary
private import semmle.code.csharp.dataflow.internal.ExternalFlow
private import semmle.code.csharp.commons.Collections
private import semmle.code.csharp.Conversion
private import semmle.code.csharp.dataflow.internal.SsaImpl as SsaImpl
private import semmle.code.csharp.ExprOrStmtParent
@@ -16,7 +17,6 @@ private import semmle.code.csharp.frameworks.EntityFramework
private import semmle.code.csharp.frameworks.system.linq.Expressions
private import semmle.code.csharp.frameworks.NHibernate
private import semmle.code.csharp.frameworks.Razor
private import semmle.code.csharp.frameworks.system.Collections
private import semmle.code.csharp.frameworks.system.threading.Tasks
private import semmle.code.csharp.internal.Location
private import codeql.util.Unit
@@ -1087,7 +1087,7 @@ predicate exprMayHavePostUpdateNode(Expr e) {
or
t = any(TypeParameter tp | not tp.isValueType())
or
t.isRefLikeType()
t instanceof Struct
)
}
@@ -2545,6 +2545,7 @@ private predicate clearsCont(Node n, Content c) {
a.getType() = s and
f = s.getAField() and
c.(FieldContent).getField() = f.getUnboundDeclaration() and
not f.getType() instanceof CollectionType and
not f.isRef()
)
or