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Merge pull request #1905 from ian-semmle/mangling_more

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C++: Resolve all classes
This commit is contained in:
Jonas Jensen
2019-09-09 16:48:30 +02:00
committed by GitHub
parent 79a750dfaf 4190a53574
commit 79f456e8bd
2 changed files with 6 additions and 9 deletions
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13
cpp/ql/src/semmle/code/cpp/internal/ResolveClass.qll
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@@ -55,32 +55,29 @@ private predicate oldHasCompleteTwin(@usertype c, @usertype d) {
}
pragma[noinline]
private @mangledname getTopLevelClassMangledName(@usertype c) {
private @mangledname getClassMangledName(@usertype c) {
isClass(c) and
mangled_name(c, result) and
not namespacembrs(_, c) and // not in a namespace
not member(_, _, c) and // not in some structure
not class_instantiation(c, _) // not a template instantiation
mangled_name(c, result)
}
/** Holds if `d` is a unique complete class named `name`. */
pragma[noinline]
private predicate existsCompleteWithMangledName(@mangledname name, @usertype d) {
is_complete(d) and
name = getTopLevelClassMangledName(d) and
name = getClassMangledName(d) and
onlyOneCompleteClassExistsWithMangledName(name)
}
pragma[noinline]
private predicate onlyOneCompleteClassExistsWithMangledName(@mangledname name) {
strictcount(@usertype c | is_complete(c) and getTopLevelClassMangledName(c) = name) = 1
strictcount(@usertype c | is_complete(c) and getClassMangledName(c) = name) = 1
}
/** Holds if `c` is an incomplete class named `name`. */
pragma[noinline]
private predicate existsIncompleteWithMangledName(@mangledname name, @usertype c) {
not is_complete(c) and
name = getTopLevelClassMangledName(c)
name = getClassMangledName(c)
}
/**