Move part of scanner.* into scanner-base.* for reuse in preparser scanner.

src/checks.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 12 matching lines @@
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // 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.
 
 #ifndef V8_CHECKS_H_
 #define V8_CHECKS_H_
 
 #include <string.h>
 
-#include "flags.h"
+#include "../include/v8stdint.h"
 
 extern "C" void V8_Fatal(const char* file, int line, const char* format, ...);
 void API_Fatal(const char* location, const char* format, ...);
 
 // The FATAL, UNREACHABLE and UNIMPLEMENTED macros are useful during
 // development, but they should not be relied on in the final product.
 #ifdef DEBUG
 #define FATAL(msg)                              \
   V8_Fatal(__FILE__, __LINE__, "%s", (msg))
 #define UNIMPLEMENTED()                         \
@@ skipping 228 matching lines @@
 // it can be used wherever a typedef can be used.  Beware that this
 // actually causes each use to introduce a new defined type with a
 // name depending on the source line.
 template <int> class StaticAssertionHelper { };
 #define STATIC_CHECK(test)                                                  \
   typedef                                                                   \
     StaticAssertionHelper<sizeof(StaticAssertion<static_cast<bool>(test)>)> \
     SEMI_STATIC_JOIN(__StaticAssertTypedef__, __LINE__)
 
 
+namespace v8 { namespace internal {
+
+bool EnableSlowAsserts();
+
+} }  // namespace v8::internal
+
 // The ASSERT macro is equivalent to CHECK except that it only
 // generates code in debug builds.
 #ifdef DEBUG
 #define ASSERT_RESULT(expr)  CHECK(expr)
 #define ASSERT(condition)    CHECK(condition)
 #define ASSERT_EQ(v1, v2)    CHECK_EQ(v1, v2)
 #define ASSERT_NE(v1, v2)    CHECK_NE(v1, v2)
 #define ASSERT_GE(v1, v2)    CHECK_GE(v1, v2)
-#define SLOW_ASSERT(condition) if (FLAG_enable_slow_asserts) CHECK(condition)
+#define SLOW_ASSERT(condition) if (EnableSlowAsserts()) CHECK(condition)
 #else
 #define ASSERT_RESULT(expr)     (expr)
 #define ASSERT(condition)      ((void) 0)
 #define ASSERT_EQ(v1, v2)      ((void) 0)
 #define ASSERT_NE(v1, v2)      ((void) 0)
 #define ASSERT_GE(v1, v2)      ((void) 0)
 #define SLOW_ASSERT(condition) ((void) 0)
 #endif
 // Static asserts has no impact on runtime performance, so they can be
 // safely enabled in release mode. Moreover, the ((void) 0) expression
 // obeys different syntax rules than typedef's, e.g. it can't appear
 // inside class declaration, this leads to inconsistency between debug
 // and release compilation modes behaviour.
 #define STATIC_ASSERT(test)  STATIC_CHECK(test)
 
+namespace v8 { namespace internal {
+
+intptr_t HeapObjectTagMask();
+
+} }  // namespace v8::internal
 
 #define ASSERT_TAG_ALIGNED(address) \
-  ASSERT((reinterpret_cast<intptr_t>(address) & kHeapObjectTagMask) == 0)
+  ASSERT((reinterpret_cast<intptr_t>(address) & HeapObjectTagMask()) == 0)
 
-#define ASSERT_SIZE_TAG_ALIGNED(size) ASSERT((size & kHeapObjectTagMask) == 0)
+#define ASSERT_SIZE_TAG_ALIGNED(size) ASSERT((size & HeapObjectTagMask()) == 0)
 
 #define ASSERT_NOT_NULL(p)  ASSERT_NE(NULL, p)
 
 #endif  // V8_CHECKS_H_