[inspector] change implementation file extension from cpp to cc

src/inspector/V8DebuggerScript.cpp

-// Copyright 2014 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 "src/inspector/V8DebuggerScript.h"
-
-#include "src/inspector/ProtocolPlatform.h"
-#include "src/inspector/StringUtil.h"
-
-namespace v8_inspector {
-
-static const char hexDigits[17] = "0123456789ABCDEF";
-
-static void appendUnsignedAsHex(unsigned number, String16Builder* destination) {
-  for (size_t i = 0; i < 8; ++i) {
-    UChar c = hexDigits[number & 0xF];
-    destination->append(c);
-    number >>= 4;
-  }
-}
-
-// Hash algorithm for substrings is described in "Über die Komplexität der
-// Multiplikation in
-// eingeschränkten Branchingprogrammmodellen" by Woelfe.
-// http://opendatastructures.org/versions/edition-0.1d/ods-java/node33.html#SECTION00832000000000000000
-static String16 calculateHash(const String16& str) {
-  static uint64_t prime[] = {0x3FB75161, 0xAB1F4E4F, 0x82675BC5, 0xCD924D35,
-                             0x81ABE279};
-  static uint64_t random[] = {0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476,
-                              0xC3D2E1F0};
-  static uint32_t randomOdd[] = {0xB4663807, 0xCC322BF5, 0xD4F91BBD, 0xA7BEA11D,
-                                 0x8F462907};
-
-  uint64_t hashes[] = {0, 0, 0, 0, 0};
-  uint64_t zi[] = {1, 1, 1, 1, 1};
-
-  const size_t hashesSize = arraysize(hashes);
-
-  size_t current = 0;
-  const uint32_t* data = nullptr;
-  size_t sizeInBytes = sizeof(UChar) * str.length();
-  data = reinterpret_cast<const uint32_t*>(str.characters16());
-  for (size_t i = 0; i < sizeInBytes / 4; i += 4) {
-    uint32_t v = data[i];
-    uint64_t xi = v * randomOdd[current] & 0x7FFFFFFF;
-    hashes[current] = (hashes[current] + zi[current] * xi) % prime[current];
-    zi[current] = (zi[current] * random[current]) % prime[current];
-    current = current == hashesSize - 1 ? 0 : current + 1;
-  }
-  if (sizeInBytes % 4) {
-    uint32_t v = 0;
-    for (size_t i = sizeInBytes - sizeInBytes % 4; i < sizeInBytes; ++i) {
-      v <<= 8;
-      v |= reinterpret_cast<const uint8_t*>(data)[i];
-    }
-    uint64_t xi = v * randomOdd[current] & 0x7FFFFFFF;
-    hashes[current] = (hashes[current] + zi[current] * xi) % prime[current];
-    zi[current] = (zi[current] * random[current]) % prime[current];
-    current = current == hashesSize - 1 ? 0 : current + 1;
-  }
-
-  for (size_t i = 0; i < hashesSize; ++i)
-    hashes[i] = (hashes[i] + zi[i] * (prime[i] - 1)) % prime[i];
-
-  String16Builder hash;
-  for (size_t i = 0; i < hashesSize; ++i) appendUnsignedAsHex(hashes[i], &hash);
-  return hash.toString();
-}
-
-static v8::Local<v8::Value> GetChecked(v8::Local<v8::Context> context,
-                                       v8::Local<v8::Object> object,
-                                       const char* name) {
-  return object
-      ->Get(context, toV8StringInternalized(context->GetIsolate(), name))
-      .ToLocalChecked();
-}
-
-static int64_t GetCheckedInt(v8::Local<v8::Context> context,
-                             v8::Local<v8::Object> object, const char* name) {
-  return GetChecked(context, object, name)
-      ->ToInteger(context)
-      .ToLocalChecked()
-      ->Value();
-}
-
-V8DebuggerScript::V8DebuggerScript(v8::Local<v8::Context> context,
-                                   v8::Local<v8::Object> object,
-                                   bool isLiveEdit) {
-  v8::Isolate* isolate = context->GetIsolate();
-  v8::Local<v8::Value> idValue = GetChecked(context, object, "id");
-  DCHECK(!idValue.IsEmpty() && idValue->IsInt32());
-  m_id = String16::fromInteger(idValue->Int32Value(context).FromJust());
-
-  m_url = toProtocolStringWithTypeCheck(GetChecked(context, object, "name"));
-  m_sourceURL =
-      toProtocolStringWithTypeCheck(GetChecked(context, object, "sourceURL"));
-  m_sourceMappingURL = toProtocolStringWithTypeCheck(
-      GetChecked(context, object, "sourceMappingURL"));
-  m_startLine = GetCheckedInt(context, object, "startLine");
-  m_startColumn = GetCheckedInt(context, object, "startColumn");
-  m_endLine = GetCheckedInt(context, object, "endLine");
-  m_endColumn = GetCheckedInt(context, object, "endColumn");
-  m_executionContextAuxData = toProtocolStringWithTypeCheck(
-      GetChecked(context, object, "executionContextAuxData"));
-  m_executionContextId = GetCheckedInt(context, object, "executionContextId");
-  m_isLiveEdit = isLiveEdit;
-
-  v8::Local<v8::Value> sourceValue;
-  if (!object->Get(context, toV8StringInternalized(isolate, "source"))
-           .ToLocal(&sourceValue) ||
-      !sourceValue->IsString())
-    return;
-  setSource(isolate, sourceValue.As<v8::String>());
-}
-
-V8DebuggerScript::~V8DebuggerScript() {}
-
-const String16& V8DebuggerScript::sourceURL() const {
-  return m_sourceURL.isEmpty() ? m_url : m_sourceURL;
-}
-
-v8::Local<v8::String> V8DebuggerScript::source(v8::Isolate* isolate) const {
-  return m_source.Get(isolate);
-}
-
-void V8DebuggerScript::setSourceURL(const String16& sourceURL) {
-  m_sourceURL = sourceURL;
-}
-
-void V8DebuggerScript::setSourceMappingURL(const String16& sourceMappingURL) {
-  m_sourceMappingURL = sourceMappingURL;
-}
-
-void V8DebuggerScript::setSource(v8::Isolate* isolate,
-                                 v8::Local<v8::String> source) {
-  m_source.Reset(isolate, source);
-  m_hash = calculateHash(toProtocolString(source));
-}
-
-}  // namespace v8_inspector