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C#: Remove some FPs for cs/simplifiable-boolean-expression. #22708

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Merged
michaelnebel merged 7 commits into from
Oct 6, 2026
Merged

C#: Remove some FPs for cs/simplifiable-boolean-expression. #22708

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838e1f7
C#: Add some tests with incomplete type information.
michaelnebel Sep 30, 2026
964adaa
C#: Simplify to avoid binding sets.
michaelnebel Sep 30, 2026
fd116f2
C#: Re-factor the implementation to use the designated predicates for…
michaelnebel Sep 30, 2026
cbf1c4f
C#: Check that both operands are booleans when suggesting re-writes f…
michaelnebel Sep 30, 2026
9ab1f34
C#: Update test expected output.
michaelnebel Sep 30, 2026
9bf56c5
C#: Add change-note.
michaelnebel Sep 30, 2026
8ebc37c
C#: Address copilots review comments.
michaelnebel Sep 30, 2026
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C#: Address copilots review comments.
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@michaelnebel
michaelnebel committed Sep 30, 2026
commit 8ebc37c992f2360023d635612aaa22f63da74154
1 change: 1 addition & 0 deletions csharp/ql/src/Language Abuse/SimplifyBoolExpr.ql
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Expand Up @@ -71,6 +71,7 @@ predicate rewriteBinaryExpr(BinaryOperation op, boolean value, string oldPattern
}

predicate rewriteConditionalExpr(ConditionalExpr cond, string oldPattern, string newPattern) {
cond.getCondition().getType() instanceof BoolType and
cond.getThen().getType() instanceof BoolType and
cond.getElse().getType() instanceof BoolType and
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2 changes: 1 addition & 1 deletion csharp/ql/test/query-tests/Language Abuse/SimplifyBoolExpr/SimplifyBoolExpr.cs
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Expand Up @@ -46,6 +46,6 @@ void Fn()
if (true || false) ;

bool? boption = false;
if (boption == true) ; // GOOD. Cant be simplified like a regular bool
if (boption == true) ; // GOOD. Can't be simplified like a regular bool
}
}
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