RunClang: Provide `__make_integer_seq` builtin when Clang does not

Visual Studio 2015 Update 2 (cl 19.00.23918) adds a `__make_integer_seq`
builtin.  It also started using the builtin in the `<type_traits>`
header.  Clang version 3.8 and above provide this builtin but older
versions do not, so CastXML fails when built against Clang 3.6 or 3.7.
Work around this problem by adding our own implementation of the builtin
when Clang does not provide it.

3 files changed, 9 insertions, 1 deletions

diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
index 98a58bf..575ab81 100644
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -268,6 +268,7 @@ castxml_test_cmd(cc-msvc-std-c++14 --castxml-cc-msvc "(" $<TARGET_FILE:cc-msvc>
 castxml_test_cmd(cc-msvc-std-explicit --castxml-cc-msvc "(" $<TARGET_FILE:cc-msvc> -msc=1500 ")" -std=gnu++14 ${empty_cxx} "-###")
 castxml_test_cmd(cc-msvc-builtin-1800-E --castxml-cc-msvc "(" $<TARGET_FILE:cc-msvc> -msc=1800 ")" ${empty_cxx} -E -dM)
 castxml_test_cmd(cc-msvc-builtin-1900-E --castxml-cc-msvc "(" $<TARGET_FILE:cc-msvc> -msc=1900 ")" ${empty_cxx} -E -dM)
+castxml_test_cmd(cc-msvc-builtin-1900 --castxml-cc-msvc "(" $<TARGET_FILE:cc-msvc> -msc=1900 ")" ${input}/make_integer_seq.cxx)
 castxml_test_cmd(cc-msvc-c-bad-cmd --castxml-cc-msvc-c "(" cc-msvc-c-bad-cmd ")" ${empty_c})
 castxml_test_cmd(cc-msvc-c-src-c-E --castxml-cc-msvc-c $<TARGET_FILE:cc-msvc> ${empty_c} -E -dM)
 castxml_test_cmd(cc-msvc-c-src-c-cmd --castxml-cc-msvc-c $<TARGET_FILE:cc-msvc> ${empty_c} "-###")
diff --git a/test/expect/cmd.cc-msvc-builtin-1900-E.stdout.txt b/test/expect/cmd.cc-msvc-builtin-1900-E.stdout.txt
index d008453..3990d4c 100644
--- a/test/expect/cmd.cc-msvc-builtin-1900-E.stdout.txt
+++ b/test/expect/cmd.cc-msvc-builtin-1900-E.stdout.txt
@@ -5,4 +5,5 @@
 #define __castxml_clang_minor__ [0-9]+
 #define __castxml_clang_patchlevel__ [0-9]+
 #define __cplusplus 199711L
-#define __is_assignable\(_To,_Fr\) \(sizeof\(__castxml__is_assignable_check<_To,_Fr>\(0\)\) == sizeof\(char\(&\)\[1\]\)\)$
+#define __is_assignable\(_To,_Fr\) \(sizeof\(__castxml__is_assignable_check<_To,_Fr>\(0\)\) == sizeof\(char\(&\)\[1\]\)\)(
+#define __make_integer_seq __castxml__make_integer_seq)?$
diff --git a/test/input/make_integer_seq.cxx b/test/input/make_integer_seq.cxx
new file mode 100644
index 0000000..44a89a8
--- /dev/null
+++ b/test/input/make_integer_seq.cxx
@@ -0,0 +1,6 @@
+template <typename _T, _T...> struct seq;
+typedef __make_integer_seq<seq, int, 3> seq_A;
+typedef seq<int,0,1,2> seq_B;
+template <typename A, typename B> struct assert_same;
+template <typename A> struct assert_same<A,A> {};
+assert_same<seq_A,seq_B> enforce;