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C++: Support destroying deletes

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This commit is contained in:
Jeroen Ketema
2024-07-23 15:57:17 +02:00
parent 4c8da54b64
commit acbca9c108
12 changed files with 9362 additions and 109 deletions
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20
cpp/ql/lib/semmle/code/cpp/exprs/Expr.qll
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@@ -855,6 +855,16 @@ class NewOrNewArrayExpr extends Expr, @any_new_expr {
)
}
/**
* Holds if the deallocation function is a destroying delete.
*/
predicate isDestroyingDeleteDeallocation() {
exists(int form |
expr_deallocator(underlyingElement(this), _, form) and
form.bitAnd(4) != 0 // Bit two is the "destroying delete" bit
)
}
/**
* Gets the type that is being allocated.
*
@@ -1025,6 +1035,16 @@ class DeleteOrDeleteArrayExpr extends Expr, TDeleteOrDeleteArrayExpr {
)
}
/**
* Holds if the deallocation function is a destroying delete.
*/
predicate isDestroyingDeleteDeallocation() {
exists(int form |
expr_deallocator(underlyingElement(this), _, form) and
form.bitAnd(4) != 0 // Bit two is the "destroying delete" bit
)
}
/**
* Gets the object or array being deleted.
*/