Add some tests explicitly about template parameter usage

Author: fitzgen

tests/headers/template-param-usage-0.hpp

@@ -0,0 +1,6 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class UsesTemplateParameter {
+    T t;
+};

tests/headers/template-param-usage-1.hpp

@@ -0,0 +1,6 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class DoesNotUseTemplateParameter {
+    int x;
+};

tests/headers/template-param-usage-10.hpp

@@ -0,0 +1,14 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T, typename U, typename NeverUsed>
+class DoublyIndirectUsage {
+    using Aliased = T;
+    typedef U Typedefed;
+
+    class IndirectUsage {
+        Aliased member;
+        Typedefed another;
+    };
+
+    IndirectUsage doubly_indirect;
+};

tests/headers/template-param-usage-11.hpp

@@ -0,0 +1,6 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class DoesNotUseT {
+    static T but_static_member_does;
+};

tests/headers/template-param-usage-12.hpp

@@ -0,0 +1,11 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class BaseUsesT {
+    T* t;
+};
+
+template <typename U>
+class CrtpUsesU : public BaseUsesT<CrtpUsesU<U>> {
+    U usage;
+};

tests/headers/template-param-usage-13.hpp

@@ -0,0 +1,11 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class BaseIgnoresT {
+    int x;
+};
+
+template <typename U>
+class CrtpUsesU : public BaseIgnoresT<CrtpUsesU<U>> {
+    U usage;
+};

tests/headers/template-param-usage-14.hpp

@@ -0,0 +1,11 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class BaseIgnoresT {
+    int x;
+};
+
+template <typename U>
+class CrtpIgnoresU : public BaseIgnoresT<CrtpIgnoresU<U>> {
+    int y;
+};

tests/headers/template-param-usage-15.hpp

@@ -0,0 +1,11 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class BaseUsesT {
+    T* usage;
+};
+
+template <typename U>
+class CrtpIgnoresU : public BaseUsesT<CrtpIgnoresU<U>> {
+    int y;
+};

tests/headers/template-param-usage-2.hpp

@@ -0,0 +1,10 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class UsesTemplateParameter {
+    T t;
+
+    class AlsoUsesTemplateParameter {
+        T also;
+    };
+};

tests/headers/template-param-usage-3.hpp

@@ -0,0 +1,12 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class UsesTemplateParameter {
+    T t;
+
+    template <typename U>
+    class AlsoUsesTemplateParameterAndMore {
+        T also;
+        U more;
+    };
+};

tests/headers/template-param-usage-4.hpp

@@ -0,0 +1,11 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class UsesTemplateParameter {
+    T t;
+
+    template <typename U>
+    class DoesNotUseTemplateParameters {
+        int x;
+    };
+};

tests/headers/template-param-usage-5.hpp

@@ -0,0 +1,8 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class IndirectlyUsesTemplateParameter {
+    using Aliased = T;
+
+    Aliased aliased;
+};

tests/headers/template-param-usage-6.hpp

@@ -0,0 +1,8 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T>
+class DoesNotUseTemplateParameter {
+    using ButAliasDoesUseIt = T;
+
+    int x;
+};

tests/headers/template-param-usage-7.hpp

@@ -0,0 +1,10 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T, typename U, typename V>
+class DoesNotUseU {
+    T t;
+    V v;
+};
+
+// The bool should go away becuase U is not used.
+using Alias = DoesNotUseU<int, bool, char>;

tests/headers/template-param-usage-8.hpp

@@ -0,0 +1,10 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T, typename U>
+class IndirectUsage {
+    typedef T Typedefed;
+    using Aliased = U;
+
+    Typedefed member1;
+    Aliased member2;
+};

tests/headers/template-param-usage-9.hpp

@@ -0,0 +1,12 @@
+// bindgen-flags: -- -std=c++14
+
+template <typename T, typename U>
+class DoesNotUse {
+    using Aliased = T;
+    typedef U Typedefed;
+
+    class IndirectUsage {
+        Aliased member;
+        Typedefed another;
+    };
+};