Test headers for warnings more strictly

3 files changed, 116 insertions, 0 deletions

diff --git a/test/headers/.clang-tidy b/test/headers/.clang-tidy
new file mode 100644
index 0000000..6ef3ba1
--- /dev/null
+++ b/test/headers/.clang-tidy
@@ -0,0 +1,21 @@
+# Copyright 2020-2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: 0BSD OR ISC
+
+Checks: >
+  *,
+  -*-magic-numbers,
+  -altera-*,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-macro-parentheses,
+  -llvm-header-guard,
+  -llvmlibc-restrict-system-libc-headers,
+  -performance-no-int-to-ptr,
+  -readability-identifier-length,
+CheckOptions:
+  - key: hicpp-uppercase-literal-suffix.NewSuffixes
+    value: L;U;f
+  - key: readability-uppercase-literal-suffix.NewSuffixes
+    value: L;U;f
+FormatStyle: file
+HeaderFilterRegex: 'lv2/.*\.h'
+WarningsAsErrors: '*'
diff --git a/test/headers/meson.build b/test/headers/meson.build
new file mode 100644
index 0000000..e0a2d76
--- /dev/null
+++ b/test/headers/meson.build
@@ -0,0 +1,53 @@
+# Copyright 2020-2022 David Robillard <d@drobilla.net>
+# SPDX-License-Identifier: 0BSD OR ISC
+
+header_c_suppressions = []
+
+if get_option('strict')
+  if cc.get_id() == 'clang'
+    header_c_suppressions += [
+      '-Wno-cast-align',
+      '-Wno-cast-qual',
+      '-Wno-declaration-after-statement',
+      '-Wno-padded',
+    ]
+
+  elif cc.get_id() == 'gcc'
+    header_c_suppressions += [
+      '-Wno-cast-align',
+      '-Wno-cast-qual',
+      '-Wno-padded',
+      '-Wno-sign-conversion',
+      '-Wno-suggest-attribute=format',
+      '-Wno-unused-const-variable',
+    ]
+
+    if host_machine.system() == 'windows'
+      header_c_suppressions += [
+        '-Wno-sign-conversion',
+      ]
+    endif
+
+  elif cc.get_id() == 'msvc'
+    header_c_suppressions += [
+      '/wd4820', # padding added after construct
+    ]
+  endif
+endif
+
+if cc.get_id() == 'clang'
+  header_c_suppressions += [
+    '-Wno-nullability-extension',
+  ]
+endif
+
+test(
+  'headers',
+  executable(
+    'test_headers',
+    files('test_headers.c'),
+    c_args: header_c_suppressions,
+    dependencies: [lv2_dep],
+  ),
+  suite: 'unit',
+)
diff --git a/test/headers/test_headers.c b/test/headers/test_headers.c
new file mode 100644
index 0000000..5736b44
--- /dev/null
+++ b/test/headers/test_headers.c
@@ -0,0 +1,42 @@
+// Copyright 2022 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: ISC
+
+#include "lv2/atom/atom.h"                       // IWYU pragma: keep
+#include "lv2/atom/forge.h"                      // IWYU pragma: keep
+#include "lv2/atom/util.h"                       // IWYU pragma: keep
+#include "lv2/buf-size/buf-size.h"               // IWYU pragma: keep
+#include "lv2/core/attributes.h"                 // IWYU pragma: keep
+#include "lv2/core/lv2.h"                        // IWYU pragma: keep
+#include "lv2/core/lv2_util.h"                   // IWYU pragma: keep
+#include "lv2/data-access/data-access.h"         // IWYU pragma: keep
+#include "lv2/dynmanifest/dynmanifest.h"         // IWYU pragma: keep
+#include "lv2/event/event-helpers.h"             // IWYU pragma: keep
+#include "lv2/event/event.h"                     // IWYU pragma: keep
+#include "lv2/instance-access/instance-access.h" // IWYU pragma: keep
+#include "lv2/log/log.h"                         // IWYU pragma: keep
+#include "lv2/log/logger.h"                      // IWYU pragma: keep
+#include "lv2/midi/midi.h"                       // IWYU pragma: keep
+#include "lv2/morph/morph.h"                     // IWYU pragma: keep
+#include "lv2/options/options.h"                 // IWYU pragma: keep
+#include "lv2/parameters/parameters.h"           // IWYU pragma: keep
+#include "lv2/patch/patch.h"                     // IWYU pragma: keep
+#include "lv2/port-groups/port-groups.h"         // IWYU pragma: keep
+#include "lv2/port-props/port-props.h"           // IWYU pragma: keep
+#include "lv2/presets/presets.h"                 // IWYU pragma: keep
+#include "lv2/resize-port/resize-port.h"         // IWYU pragma: keep
+#include "lv2/state/state.h"                     // IWYU pragma: keep
+#include "lv2/time/time.h"                       // IWYU pragma: keep
+#include "lv2/ui/ui.h"                           // IWYU pragma: keep
+#include "lv2/units/units.h"                     // IWYU pragma: keep
+#include "lv2/uri-map/uri-map.h"                 // IWYU pragma: keep
+#include "lv2/urid/urid.h"                       // IWYU pragma: keep
+#include "lv2/worker/worker.h"                   // IWYU pragma: keep
+
+#ifdef __GNUC__
+__attribute__((const))
+#endif
+int
+main(void)
+{
+  return 0;
+}