From 1d7e03e48e87328ce0081021dde133921b78b406 Mon Sep 17 00:00:00 2001
From: Carl Worth <cworth@cworth.org>
Date: Tue, 20 Jul 2010 14:13:32 -0700
Subject: glcpp: Fix support for nested #ifdef and nested #ifndef

Previously, if the outer #ifdef/#ifndef evaluated to false, the inner
directive would not be parsed correctly, (the identifier as the subject
of the #ifdef/#ifndef would inadvertently be skipped along with the other
content correctly being skipped).

We fix this by setting the lexing_if state in each case here.

We also add a new test to the test suite to ensure that this case is tested.
---
 src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c     | 40 +++++++++++++++++++++
 .../glcpp/tests/067-nested-ifdef-ifndef.c.expected | 41 ++++++++++++++++++++++
 2 files changed, 81 insertions(+)
 create mode 100644 src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c
 create mode 100644 src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c.expected

(limited to 'src/glsl/glcpp/tests')

diff --git a/src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c b/src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c
new file mode 100644
index 0000000000..f46cce4e60
--- /dev/null
+++ b/src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c
@@ -0,0 +1,40 @@
+#define D1
+#define D2
+
+#define result success
+
+#ifdef U1
+#ifdef U2
+#undef result
+#define result failure
+#endif
+#endif
+result
+
+#ifndef D1
+#ifndef D2
+#undef result
+#define result failure
+#endif
+#endif
+result
+
+#undef result
+#define result failure
+#ifdef D1
+#ifdef D2
+#undef result
+#define result success
+#endif
+#endif
+result
+
+#undef result
+#define result failure
+#ifndef U1
+#ifndef U2
+#undef result
+#define result success
+#endif
+#endif
+result
diff --git a/src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c.expected b/src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c.expected
new file mode 100644
index 0000000000..3340daaa1f
--- /dev/null
+++ b/src/glsl/glcpp/tests/067-nested-ifdef-ifndef.c.expected
@@ -0,0 +1,41 @@
+
+
+
+
+
+
+
+
+
+
+
+success
+
+
+
+
+
+
+
+success
+
+
+
+
+
+
+
+
+
+success
+
+
+
+
+
+
+
+
+
+success
+
-- 
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