[PATCH] D56824: [analyzer] MoveChecker: add ".assign" to the list of common reinitializing methods.
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Thu Jan 17 16:20:39 PST 2019
This revision was automatically updated to reflect the committed changes.
Closed by commit rC351500: [analyzer] MoveChecker: Add one more common resetting method, "append". (authored by dergachev, committed by ).
Repository:
rC Clang
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D56824/new/
https://reviews.llvm.org/D56824
Files:
lib/StaticAnalyzer/Checkers/MoveChecker.cpp
test/Analysis/use-after-move.cpp
Index: lib/StaticAnalyzer/Checkers/MoveChecker.cpp
===================================================================
--- lib/StaticAnalyzer/Checkers/MoveChecker.cpp
+++ lib/StaticAnalyzer/Checkers/MoveChecker.cpp
@@ -502,9 +502,9 @@
std::string MethodName = MethodDec->getName().lower();
// TODO: Some of these methods (eg., resize) are not always resetting
// the state, so we should consider looking at the arguments.
- if (MethodName == "reset" || MethodName == "clear" ||
- MethodName == "destroy" || MethodName == "resize" ||
- MethodName == "shrink")
+ if (MethodName == "assign" || MethodName == "clear" ||
+ MethodName == "destroy" || MethodName == "reset" ||
+ MethodName == "resize" || MethodName == "shrink")
return true;
}
return false;
Index: test/Analysis/use-after-move.cpp
===================================================================
--- test/Analysis/use-after-move.cpp
+++ test/Analysis/use-after-move.cpp
@@ -89,6 +89,7 @@
void destroy();
void clear();
void resize(std::size_t);
+ void assign(const A &);
bool empty() const;
bool isEmpty() const;
operator bool() const;
@@ -531,6 +532,13 @@
a.foo(); // no-warning
a.b.foo(); // no-warning
}
+ {
+ A a;
+ A b = std::move(a);
+ a.assign(A()); // no-warning
+ a.foo(); // no-warning
+ a.b.foo(); // no-warning
+ }
}
// Moves or uses that occur as part of template arguments.
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