From 199aff8e6d0414a4bceedc502954b8e9cfe9ec18 Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@kyllikki.org>
Date: Sat, 6 Feb 2016 23:34:00 +0000
Subject: Correctly annotate unused variables with a macro

---
 src/nsgenbind-ast.c    | 2 +-
 src/nsgenbind-parser.y | 7 +++++--
 src/utils.h            | 9 ++++++++-
 src/webidl-ast.c       | 2 +-
 src/webidl-parser.y    | 5 +++--
 5 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/src/nsgenbind-ast.c b/src/nsgenbind-ast.c
index 9be8bc7..49732a0 100644
--- a/src/nsgenbind-ast.c
+++ b/src/nsgenbind-ast.c
@@ -160,7 +160,7 @@ genbind_node_foreach_type(struct genbind_node *node,
 
 static int genbind_enumerate_node(struct genbind_node *node, void *ctx)
 {
-        node = node;
+	UNUSED(node);
         (*((int *)ctx))++;
         return 0;
 }
diff --git a/src/nsgenbind-parser.y b/src/nsgenbind-parser.y
index 7c2f7ce..a970ad2 100644
--- a/src/nsgenbind-parser.y
+++ b/src/nsgenbind-parser.y
@@ -78,6 +78,7 @@ typedef struct YYLTYPE {
                   (Loc).first_line, (Loc).first_column,         \
                   (Loc).last_line,  (Loc).last_column)
 
+#include "utils.h"
 #include "nsgenbind-lexer.h"
 #include "webidl-ast.h"
 #include "nsgenbind-ast.h"
@@ -90,14 +91,16 @@ static void nsgenbind_error(YYLTYPE *locp,
                             const char *str)
 {
         int errlen;
+
+        UNUSED(genbind_ast);
+        UNUSED(filename);
+
         errlen = snprintf(NULL, 0, "%s:%d:%s",
                           locp->filename, locp->first_line, str);
         errtxt = malloc(errlen + 1);
         snprintf(errtxt, errlen + 1, "%s:%d:%s",
                           locp->filename, locp->first_line, str);
 
-        genbind_ast = genbind_ast;
-        filename = filename;
 }
 
 static struct genbind_node *
diff --git a/src/utils.h b/src/utils.h
index a46946a..c9dfd36 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -41,6 +41,13 @@ int genb_fclose_tmp(FILE *filef, const char *fname);
 char *strndup(const char *s, size_t n);
 #endif
 
-#define SLEN(x) (sizeof((x)) - 1)
+#ifndef SLEN
+/* Calculate length of a string constant */
+#define SLEN(s) (sizeof((s)) - 1) /* -1 for '\0' */
+#endif
+
+#ifndef UNUSED
+#define UNUSED(x) ((void)(x))
+#endif
 
 #endif
diff --git a/src/webidl-ast.c b/src/webidl-ast.c
index 253a3ba..26851c3 100644
--- a/src/webidl-ast.c
+++ b/src/webidl-ast.c
@@ -173,7 +173,7 @@ int webidl_cmp_node_type(struct webidl_node *node, void *ctx)
 
 static int webidl_enumerate_node(struct webidl_node *node, void *ctx)
 {
-	node = node;
+	UNUSED(node);
 	(*((int *)ctx))++;
 	return 0;
 }
diff --git a/src/webidl-parser.y b/src/webidl-parser.y
index b48b449..ec3309c 100644
--- a/src/webidl-parser.y
+++ b/src/webidl-parser.y
@@ -26,6 +26,7 @@
                  (Loc).first_line, (Loc).first_column,          \
                  (Loc).last_line,  (Loc).last_column)
 
+#include "utils.h"
 #include "webidl-parser.h"
 #include "webidl-lexer.h"
 
@@ -36,8 +37,8 @@ char *errtxt;
 static void
 webidl_error(YYLTYPE *locp, struct webidl_node **winbind_ast, const char *str)
 {
-  locp = locp;
-  winbind_ast = winbind_ast;
+    UNUSED(locp);
+    UNUSED(winbind_ast);
     errtxt = strdup(str);
 }
 
-- 
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