Line data    Source code

       1             : // Copyright 2017 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_CCTEST_UNICODE_HELPERS_H_
       6             : #define V8_CCTEST_UNICODE_HELPERS_H_
       7             : 
       8             : #include "src/unicode.h"
       9             : 
      10             : static int Ucs2CharLength(unibrow::uchar c) {
      11     2533707 :   if (c == unibrow::Utf8::kIncomplete || c == unibrow::Utf8::kBufferEmpty) {
      12             :     return 0;
      13     2463965 :   } else if (c < 0xffff) {
      14             :     return 1;
      15             :   } else {
      16             :     return 2;
      17             :   }
      18             : }
      19             : 
      20       69677 : static int Utf8LengthHelper(const char* s) {
      21       69677 :   unibrow::Utf8::Utf8IncrementalBuffer buffer(unibrow::Utf8::kBufferEmpty);
      22             :   int length = 0;
      23     2533707 :   for (; *s != '\0'; s++) {
      24     2464030 :     unibrow::uchar tmp = unibrow::Utf8::ValueOfIncremental(*s, &buffer);
      25     2464030 :     length += Ucs2CharLength(tmp);
      26             :   }
      27       69677 :   unibrow::uchar tmp = unibrow::Utf8::ValueOfIncrementalFinish(&buffer);
      28       69677 :   length += Ucs2CharLength(tmp);
      29       69677 :   return length;
      30             : }
      31             : 
      32             : #endif  // V8_CCTEST_UNICODE_HELPERS_H_