Scanner::LiteralBuffer usage cleanup.

src/parsing/token.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdint.h>
 
 #include "src/parsing/token.h"
 
 namespace v8 {
 namespace internal {
 
 #define T(name, string, precedence) #name,
 const char* const Token::name_[NUM_TOKENS] = {
   TOKEN_LIST(T, T)
 };
 #undef T
 
 
 #define T(name, string, precedence) string,
 const char* const Token::string_[NUM_TOKENS] = {
   TOKEN_LIST(T, T)
 };
 #undef T
 
+constexpr uint8_t length(const char* str) { return str ? strlen(str) : 0; }
+#define T(name, string, precedence) length(string),
+const uint8_t Token::string_length_[NUM_TOKENS] = {TOKEN_LIST(T, T)};
+#undef T
 
 #define T(name, string, precedence) precedence,
 const int8_t Token::precedence_[NUM_TOKENS] = {
   TOKEN_LIST(T, T)
 };
 #undef T
 
 
 #define KT(a, b, c) 'T',
 #define KK(a, b, c) 'K',
 const char Token::token_type[] = {
   TOKEN_LIST(KT, KK)
 };
 #undef KT
 #undef KK
 
 }  // namespace internal
 }  // namespace v8