new loplugin typedefparam

verify that parameters use the exact same typedef-names (if any)
in definition and declaration

Change-Id: I55d2817f599b0253904dce2d35a1a93967e15a77
Reviewed-on: https://gerrit.libreoffice.org/68439
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 80 insertions, 0 deletions

diff --git a/compilerplugins/clang/test/typedefparam.cxx b/compilerplugins/clang/test/typedefparam.cxx
new file mode 100644
index 000000000000..ed2f8d7017a3
--- /dev/null
+++ b/compilerplugins/clang/test/typedefparam.cxx
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "tools/solar.h"
+
+namespace test1
+{
+class Foo
+{
+    void bar(sal_uIntPtr x); // expected-note {{declaration site here [loplugin:typedefparam]}}
+    sal_uIntPtr bar(); // expected-note {{declaration site here [loplugin:typedefparam]}}
+};
+
+void Foo::bar(sal_uLong)
+// expected-error@-1 {{function param 0 at definition site does not match function param at declaration site, 'sal_uLong' (aka 'unsigned long') vs 'sal_uIntPtr' (aka 'unsigned long') [loplugin:typedefparam]}}
+{
+}
+
+sal_uLong Foo::bar()
+// expected-error@-1 {{function return type at definition site does not match function param at declaration site, 'sal_uLong' (aka 'unsigned long') vs 'sal_uIntPtr' (aka 'unsigned long') [loplugin:typedefparam]}}
+{
+    return 1;
+}
+};
+
+// Carve out an exception for the "typedef struct S {...} T" idiom we use in the UNO code
+namespace test2
+{
+typedef struct Foo
+{
+    int x;
+} FooT;
+
+void bar(struct Foo*);
+
+void bar(FooT*){
+    // no warning expected
+};
+};
+namespace test3
+{
+typedef struct Foo
+{
+    int x;
+} FooT;
+
+void bar(Foo*);
+
+void bar(FooT*){
+    // no warning expected
+};
+};
+
+// check method overrides
+namespace test4
+{
+struct Struct1
+{
+    virtual sal_uIntPtr foo1();
+    // expected-note@-1 {{super-class method here [loplugin:typedefparam]}}
+    virtual void foo2(sal_uIntPtr);
+    // expected-note@-1 {{super-class method here [loplugin:typedefparam]}}
+    virtual ~Struct1();
+};
+struct Struct2 : public Struct1
+{
+    virtual sal_uLong foo1() override;
+    // expected-error@-1 {{method return type does not match overridden method 'sal_uLong' (aka 'unsigned long') vs 'sal_uIntPtr' (aka 'unsigned long') [loplugin:typedefparam]}}
+    virtual void foo2(sal_uLong) override;
+    // expected-error@-1 {{method param 0 does not match overridden method param 'sal_uLong' (aka 'unsigned long') vs 'sal_uIntPtr' (aka 'unsigned long') [loplugin:typedefparam]}}
+};
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */