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-rw-r--r--build/clang-plugin/tests/TestNonParameterChecker.cpp187
1 files changed, 187 insertions, 0 deletions
diff --git a/build/clang-plugin/tests/TestNonParameterChecker.cpp b/build/clang-plugin/tests/TestNonParameterChecker.cpp
new file mode 100644
index 0000000000..291ef949f6
--- /dev/null
+++ b/build/clang-plugin/tests/TestNonParameterChecker.cpp
@@ -0,0 +1,187 @@
+#define MOZ_NON_PARAM __attribute__((annotate("moz_non_param")))
+
+struct Param {};
+struct MOZ_NON_PARAM NonParam {};
+union MOZ_NON_PARAM NonParamUnion {};
+class MOZ_NON_PARAM NonParamClass {};
+enum MOZ_NON_PARAM NonParamEnum { X, Y, Z };
+enum class MOZ_NON_PARAM NonParamEnumClass { X, Y, Z };
+
+struct HasNonParamStruct { NonParam x; int y; }; // expected-note 14 {{'HasNonParamStruct' is a non-param type because member 'x' is a non-param type 'NonParam'}}
+union HasNonParamUnion { NonParam x; int y; }; // expected-note 18 {{'HasNonParamUnion' is a non-param type because member 'x' is a non-param type 'NonParam'}}
+struct HasNonParamStructUnion { HasNonParamUnion z; }; // expected-note 9 {{'HasNonParamStructUnion' is a non-param type because member 'z' is a non-param type 'HasNonParamUnion'}}
+
+#define MAYBE_STATIC
+#include "NonParameterTestCases.h"
+#undef MAYBE_STATIC
+
+// Do not check typedef and using.
+typedef void (*funcTypeParam)(Param x);
+typedef void (*funcTypeNonParam)(NonParam x);
+
+using usingFuncTypeParam = void (*)(Param x);
+using usingFuncTypeNonParam = void (*)(NonParam x);
+
+class class_
+{
+ explicit class_(Param x) {}
+ explicit class_(NonParam x) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ explicit class_(HasNonParamStruct x) {} //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ explicit class_(HasNonParamUnion x) {} //expected-error {{Type 'HasNonParamUnion' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ explicit class_(HasNonParamStructUnion x) {} //expected-error {{Type 'HasNonParamStructUnion' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+
+#define MAYBE_STATIC
+#include "NonParameterTestCases.h"
+#undef MAYBE_STATIC
+};
+
+class classWithStatic
+{
+#define MAYBE_STATIC static
+#include "NonParameterTestCases.h"
+#undef MAYBE_STATIC
+};
+
+template <typename T>
+class tmplClassForParam
+{
+public:
+ void raw(T x) {}
+ void rawDefault(T x = T()) {}
+ void const_(const T x) {}
+ void ptr(T* x) {}
+ void ref(T& x) {}
+ void constRef(const T& x) {}
+
+ void notCalled(T x) {}
+};
+
+template <typename T>
+class tmplClassForNonParam
+{
+public:
+ void raw(T x) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ void rawDefault(T x = T()) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ void const_(const T x) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ void ptr(T* x) {}
+ void ref(T& x) {}
+ void constRef(const T& x) {}
+
+ void notCalled(T x) {}
+};
+
+template <typename T>
+class tmplClassForHasNonParamStruct
+{
+public:
+ void raw(T x) {} //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ void rawDefault(T x = T()) {} //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ void const_(const T x) {} //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ void ptr(T* x) {}
+ void ref(T& x) {}
+ void constRef(const T& x) {}
+
+ void notCalled(T x) {}
+};
+
+void testTemplateClass()
+{
+ tmplClassForParam<Param> paramClass;
+ Param param;
+ paramClass.raw(param);
+ paramClass.rawDefault();
+ paramClass.const_(param);
+ paramClass.ptr(&param);
+ paramClass.ref(param);
+ paramClass.constRef(param);
+
+ tmplClassForNonParam<NonParam> nonParamClass; //expected-note 3 {{The bad argument was passed to 'tmplClassForNonParam' here}}
+ NonParam nonParam;
+ nonParamClass.raw(nonParam);
+ nonParamClass.rawDefault();
+ nonParamClass.const_(nonParam);
+ nonParamClass.ptr(&nonParam);
+ nonParamClass.ref(nonParam);
+ nonParamClass.constRef(nonParam);
+
+ tmplClassForHasNonParamStruct<HasNonParamStruct> hasNonParamStructClass;//expected-note 3 {{The bad argument was passed to 'tmplClassForHasNonParamStruct' here}}
+ HasNonParamStruct hasNonParamStruct;
+ hasNonParamStructClass.raw(hasNonParamStruct);
+ hasNonParamStructClass.rawDefault();
+ hasNonParamStructClass.const_(hasNonParamStruct);
+ hasNonParamStructClass.ptr(&hasNonParamStruct);
+ hasNonParamStructClass.ref(hasNonParamStruct);
+ hasNonParamStructClass.constRef(hasNonParamStruct);
+}
+
+template <typename T>
+class NestedTemplateInner
+{
+public:
+ void raw(T x) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+};
+
+template <typename T>
+class nestedTemplateOuter
+{
+public:
+ void constRef(const T& x) {
+ NestedTemplateInner<T> inner; //expected-note {{The bad argument was passed to 'NestedTemplateInner' here}}
+ inner.raw(x);
+ }
+};
+
+void testNestedTemplateClass()
+{
+ nestedTemplateOuter<NonParam> outer;
+ NonParam nonParam;
+ outer.constRef(nonParam); // FIXME: this line needs note "The bad argument was passed to 'constRef' here"
+}
+
+template <typename T>
+void tmplFuncForParam(T x) {}
+template <typename T>
+void tmplFuncForNonParam(T x) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+template <typename T>
+void tmplFuncForNonParamImplicit(T x) {} //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+template <typename T>
+void tmplFuncForHasNonParamStruct(T x) {} //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+template <typename T>
+void tmplFuncForHasNonParamStructImplicit(T x) {} //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+
+void testTemplateFunc()
+{
+ Param param;
+ tmplFuncForParam<Param>(param);
+
+ NonParam nonParam;
+ tmplFuncForNonParam<NonParam>(nonParam); // FIXME: this line needs note "The bad argument was passed to 'tmplFuncForNonParam' here"
+ tmplFuncForNonParamImplicit(nonParam); // FIXME: this line needs note "The bad argument was passed to 'tmplFuncForNonParamImplicit' here"
+
+ HasNonParamStruct hasNonParamStruct;
+ tmplFuncForHasNonParamStruct<HasNonParamStruct>(hasNonParamStruct); // FIXME: this line needs note "The bad argument was passed to 'tmplFuncForHasNonParamStruct' here"
+ tmplFuncForHasNonParamStructImplicit(hasNonParamStruct); // FIXME: this line needs note "The bad argument was passed to 'tmplFuncForHasNonParamStructImplicit' here"
+}
+
+void testLambda()
+{
+ auto paramLambda = [](Param x) -> void {};
+ auto nonParamLambda = [](NonParam x) -> void {}; //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ auto nonParamStructLambda = [](HasNonParamStruct x) -> void {}; //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ auto nonParamUnionLambda = [](HasNonParamUnion x) -> void {}; //expected-error {{Type 'HasNonParamUnion' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ auto nonParamStructUnionLambda = [](HasNonParamStructUnion x) -> void {}; //expected-error {{Type 'HasNonParamStructUnion' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+
+ (void)[](Param x) -> void {};
+ (void)[](NonParam x) -> void {}; //expected-error {{Type 'NonParam' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ (void)[](HasNonParamStruct x) -> void {}; //expected-error {{Type 'HasNonParamStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ (void)[](HasNonParamUnion x) -> void {}; //expected-error {{Type 'HasNonParamUnion' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+ (void)[](HasNonParamStructUnion x) -> void {}; //expected-error {{Type 'HasNonParamStructUnion' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+}
+
+struct alignas(16) AlignasStruct { char a; ~AlignasStruct(); }; // expected-note {{'AlignasStruct' is a non-param type because it has an explicit alignment of '16'}}
+void takesAlignasStruct(AlignasStruct x) { } // expected-error {{Type 'AlignasStruct' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+void takesAlignasStructByRef(const AlignasStruct& x) { }
+
+struct AlignasMember { alignas(16) char a; ~AlignasMember(); }; // expected-note {{'AlignasMember' is a non-param type because member 'a' has an explicit alignment of '16'}}
+void takesAlignasMember(AlignasMember x) { } // expected-error {{Type 'AlignasMember' must not be used as parameter}} expected-note {{Please consider passing a const reference instead}}
+void takesAlignasMemberByRef(const AlignasMember& x) { }