Initial checkin of gRPC to third_party/

third_party/grpc/tools/codegen/core/gen_legal_metadata_characters.c

Index: third_party/grpc/tools/codegen/core/gen_legal_metadata_characters.c
diff --git a/third_party/WebKit/Source/core/animation/animatable/AnimatableValue.cpp b/third_party/grpc/tools/codegen/core/gen_legal_metadata_characters.c
similarity index 58%
copy from third_party/WebKit/Source/core/animation/animatable/AnimatableValue.cpp
copy to third_party/grpc/tools/codegen/core/gen_legal_metadata_characters.c
index dba8160fdbcb0dd88bae2cd9ea8cf2a103dba336..10605d52bfa7bb07aaae36fa734321505b8a8951 100644
--- a/third_party/WebKit/Source/core/animation/animatable/AnimatableValue.cpp
+++ b/third_party/grpc/tools/codegen/core/gen_legal_metadata_characters.c
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2013 Google Inc. All rights reserved.
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
@@ -26,33 +28,54 @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
  */
 
-#include "core/animation/animatable/AnimatableValue.h"
+/* generates constant table for metadata.c */
 
-#include "core/animation/animatable/AnimatableNeutral.h"
-#include "wtf/StdLibExtras.h"
-#include <algorithm>
+#include <stdio.h>
+#include <string.h>
 
-namespace blink {
+static unsigned char legal_bits[256 / 8];
 
-PassRefPtr<AnimatableValue> AnimatableValue::neutralValue()
-{
-    DEFINE_STATIC_REF(AnimatableNeutral, neutralSentinelValue, (AnimatableNeutral::create()));
-    return neutralSentinelValue;
+static void legal(int x) {
+  int byte = x / 8;
+  int bit = x % 8;
+  /* NB: the following integer arithmetic operation needs to be in its
+   * expanded form due to the "integral promotion" performed (see section
+   * 3.2.1.1 of the C89 draft standard). A cast to the smaller container type
+   * is then required to avoid the compiler warning */
+  legal_bits[byte] =
+      (unsigned char)((legal_bits[byte] | (unsigned char)(1 << bit)));
 }
 
-PassRefPtr<AnimatableValue> AnimatableValue::interpolate(const AnimatableValue* left, const AnimatableValue* right, double fraction)
-{
-    ASSERT(left);
-    ASSERT(right);
-    ASSERT(!left->isNeutral());
-    ASSERT(!right->isNeutral());
+static void dump(void) {
+  int i;
 
-    if (fraction && fraction != 1 && left->isSameType(right))
-        return left->interpolateTo(right, fraction);
-
-    return defaultInterpolateTo(left, right, fraction);
+  printf("static const uint8_t legal_header_bits[256/8] = ");
+  for (i = 0; i < 256 / 8; i++)
+    printf("%c 0x%02x", i ? ',' : '{', legal_bits[i]);
+  printf(" };\n");
 }
 
-} // namespace blink
+static void clear(void) { memset(legal_bits, 0, sizeof(legal_bits)); }
+
+int main(void) {
+  int i;
+
+  clear();
+  for (i = 'a'; i <= 'z'; i++) legal(i);
+  for (i = '0'; i <= '9'; i++) legal(i);
+  legal('-');
+  legal('_');
+  legal('.');
+  dump();
+
+  clear();
+  for (i = 32; i <= 126; i++) {
+    legal(i);
+  }
+  dump();
+
+  return 0;
+}