[gobject-introspection: 1/2] Ignore __pragma keyword used by MSVC

[Christoph Reiter <creiter src gnome org>]

commit 85e29abff63c00021674f33d5cae84873cd06c95
Author: Tomasz Miąsko <tomasz miasko gmail com>
Date:   Sat Dec 8 00:00:00 2018 +0000

    Ignore __pragma keyword used by MSVC

 giscanner/scannerlexer.l            |  1 +
 tests/scanner/test_sourcescanner.py | 13 +++++++++++++
 2 files changed, 14 insertions(+)
---
diff --git a/giscanner/scannerlexer.l b/giscanner/scannerlexer.l
index c2fb7234..42e79d42 100644
--- a/giscanner/scannerlexer.l
+++ b/giscanner/scannerlexer.l
@@ -173,6 +173,7 @@ stringtext                          ([^\\\"])|(\\.)
 "_Nullable"                            { /* Ignore */ }
 "_Null_unspecified"                    { /* Ignore */ }
 "_Noreturn"                            { /* Ignore */ }
+"__pragma"                             { if (!parse_ignored_macro()) REJECT; }
 "__restrict"                           { return RESTRICT; }
 "__restrict__"                         { return RESTRICT; }
 "thread_local"                         { return THREAD_LOCAL; }
diff --git a/tests/scanner/test_sourcescanner.py b/tests/scanner/test_sourcescanner.py
index ecd312e3..2f383af7 100644
--- a/tests/scanner/test_sourcescanner.py
+++ b/tests/scanner/test_sourcescanner.py
@@ -46,6 +46,19 @@ void foo() {
         self.assertEqual(len(errors), 1)
         self.assertTrue("syntax error" in errors[0])
 
+    def test_ignore_pragma(self):
+        """Pragma directive and __pragma keyword are ignored"""
+        scanner = self._parse_files("""
+#pragma warning(push)
+void test(void) {
+    __pragma(warning(push))
+    __pragma(warning(disable:6246))
+    __pragma(warning(pop))
+}
+#pragma warning(pop)
+""")
+        self.assertFalse(scanner.get_errors())
+
     def test_ignore_typeof(self):
         # https://gitlab.gnome.org/GNOME/gobject-introspection/merge_requests/71
         scanner = self._parse_files("""