From 3fb7c256e202e9fd5191dbae125669e1d42c18a8 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Sun, 15 Feb 2009 02:49:40 -0500
Subject: [PATCH] Allow debug output directly from the lexer, before
 preprocessor eats.

---
 mojoshader_internal.h     |  4 +++-
 mojoshader_preprocessor.c | 12 ++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/mojoshader_internal.h b/mojoshader_internal.h
index 6e1a11e8..995c4ba0 100644
--- a/mojoshader_internal.h
+++ b/mojoshader_internal.h
@@ -19,9 +19,11 @@
 
 #include "mojoshader.h"
 
+#define DEBUG_LEXER 0
 #define DEBUG_PREPROCESSOR 0
 #define DEBUG_ASSEMBLY_PARSER 0
-#define DEBUG_TOKENIZER ((DEBUG_PREPROCESSOR) || (DEBUG_ASSEMBLY_PARSER))
+#define DEBUG_TOKENIZER \
+    (DEBUG_PREPROCESSOR || DEBUG_ASSEMBLY_PARSER || DEBUG_LEXER)
 
 #if (defined(__APPLE__) && defined(__MACH__))
 #define PLATFORM_MACOSX 1
diff --git a/mojoshader_preprocessor.c b/mojoshader_preprocessor.c
index 2d58bdb2..70dc5176 100644
--- a/mojoshader_preprocessor.c
+++ b/mojoshader_preprocessor.c
@@ -17,6 +17,18 @@
     #define print_debug_token(token, len, val)
 #endif
 
+#if DEBUG_LEXER
+static Token debug_preprocessor_internal_lexer(IncludeState *s)
+{
+    const Token retval = preprocessor_internal_lexer(s);
+    MOJOSHADER_print_debug_token("LEXER", s->token,
+                                 (unsigned int) (s->source - s->token),
+                                 retval);
+    return retval;
+} // debug_preprocessor_internal_lexer
+#define preprocessor_internal_lexer(s) debug_preprocessor_internal_lexer(s)
+#endif
+
 typedef struct DefineHash
 {
     MOJOSHADER_preprocessorDefine define;