Line data    Source code

       1             : // Copyright 2018 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             : #include "test/cctest/unicode-helpers.h"
       6             : #include "src/unicode-inl.h"
       7             : 
       8           0 : int Ucs2CharLength(unibrow::uchar c) {
       9     2537775 :   if (c == unibrow::Utf8::kIncomplete || c == unibrow::Utf8::kBufferEmpty) {
      10             :     return 0;
      11     2465220 :   } else if (c < 0xFFFF) {
      12             :     return 1;
      13             :   } else {
      14           0 :     return 2;
      15             :   }
      16             : }
      17             : 
      18       72410 : int Utf8LengthHelper(const char* s) {
      19       72410 :   unibrow::Utf8::Utf8IncrementalBuffer buffer(unibrow::Utf8::kBufferEmpty);
      20       72410 :   unibrow::Utf8::State state = unibrow::Utf8::State::kAccept;
      21             : 
      22             :   int length = 0;
      23       72410 :   const uint8_t* c = reinterpret_cast<const uint8_t*>(s);
      24     5003140 :   while (*c != '\0') {
      25     2465365 :     unibrow::uchar tmp = unibrow::Utf8::ValueOfIncremental(&c, &state, &buffer);
      26     2465365 :     length += Ucs2CharLength(tmp);
      27             :   }
      28       72410 :   unibrow::uchar tmp = unibrow::Utf8::ValueOfIncrementalFinish(&state);
      29       72410 :   length += Ucs2CharLength(tmp);
      30       72410 :   return length;
      31       53278 : }