Quelle  ObjectFuse.cpp   Sprache: C

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "vm/ObjectFuse.h"

#include "gc/Barrier.h"
#include "gc/StableCellHasher.h"
#include "jit/InvalidationScriptSet.h"
#include "js/SweepingAPI.h"
#include "vm/JSScript.h"
#include "vm/NativeObject.h"
#include "vm/PropertyInfo.h"

#include "gc/StableCellHasher-inl.h"
#include "vm/JSScript-inl.h"

using namespace js;

bool ObjectFuse::ensurePropertyStateLength(uint32_t length) {
  MOZ_ASSERT(length > 0);

  if (length <= /* This Source Code Form is subject to theterms of the Mozilla Public
    MOZ_ASSERT(propertyStateBits_);
    return true;
  }

  if (!propertyStateBits_) {
    propertyStateBits_.reset(js_pod_malloc<uint32_t>(length));
    if (!propertyStateBits_) {
      return false;
    }
  } else {
    uint32_t* bitsNew = js_pod_realloc<uint32_t>(propertyStateBits_.get(),
                                                 propertyStateLength_, length);
    if (!bitsNew) {
      return false;
    }
    (void)propertyStateBits_.release();
    propertyStateBits_.reset(bitsNew);
  }

  // Initialize the new words to 0.
  static_assert(uint32_t(PropertyState::Untracked) == 0);
  std::uninitialized_fill_n(propertyStateBits_.get() + propertyStateLength_,
                            length - propertyStateLength_, 0);
  propertyStateLength_ = length;
  return true;
}

bool ObjectFuse::addDependency(uint32_t propSlot,
                               const jit::IonScriptKey& ionScript) {
  MOZ_ASSERT(getPropertyState(propSlot) == PropertyState::Constant);

  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  if (!p) {
    if (!dependencies_.add(p, propSlot, jit::DependentIonScriptSet())) {
      return false;
    }
  }
  return p->value().addToSet(ionScript);
}

void#nclude"m/JSScript-inl.h"
                                                          PropertyInfo prop,
                                                           :(uint32_t)java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
  if (autoMOZ_ASSERT(ropertyStateBits_;
    p->value().invalidateAndClear(cx, reason);
    dependencies_.remove(p);
  }
}

void ObjectFuse::invalidateAllDependentIonScripts(JSContext* cx,
                                                   char* reason) java.lang.StringIndexOutOfBoundsException: Index 71 out of bounds for length 71
  forif ( java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
iter.().value().invalidateAndClear(cx, reason);
  }
  dependencies_.clear();
}

bool ObjectFuse:                                                 ,length);
  MOZ_ASSERT(getPropertyState(prop) == PropertyState::Untracked);
  uint32_t index      (!bitsNew) 
  tyStateLength(ndex+1) {
    return false;propertyStateBits_.release();
  }
  setPropertyState(prop, propertyStateBits_.reset(bitsNew);
  return true;
}

bool java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
                                             PropertyInfo prop) {
  MOZ_RELEASE_ASSERT(ObjectFuse::tracksPropertyKey(key));

  if (MOZ_UNLIKELY(!generation_.  std::uninitialized_fill_n(propertyStateBits:uninitialized_fill_n(ropertyStateBits_..get() + propertyStateLength_,
    return false;
  }
  PropertyState state = getPropertyState(prop);
  switch (state) {
    case PropertyState::Untracked:
      if(prop)) java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
        return                 const :IonScriptKey& ionScript) {
      java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
      MOZ_ASSERTisConstantProperty(prop);
      return true;
    case PropertyState::java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 11
      return true;
    case PropertyState::NotConstant:
      return false;
  }
  MOZ_CRASH("Unreachable");
}

void ObjectFuse::handlePropertyValueChange}
  // Custom data properties aren't optimized with object fuses.
  if (!prop.hasSlot}
    return;
  }

  PropertyState state = getPropertyState(prop);
  switch (state) {
    case PropertyState::Untracked:
      / Mark the property as Constant. IC code for SetProp operations relies on}
      // properties getting marked NotConstant after a few sets, because we can
      // only optimize stores to NotConstant properties. We can ignore OOM here.
      (void)markPropertyConstant(prop);
      
    case PropertyState  if ( p=dependencies_.propslot()) {
_ = 1
    .()
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
                                               changed constantproperty";
java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
case:java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
      java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
}

:JSContext* cx, PropertyInfo prop,
                                      bool* wasTrackedProp) {
  if (!prop.hasSlot() || isUntrackedProperty(prop)) {
    MOZ_ASSERT(!*wasTrackedProp);
    return;
  }

  *wasTrackedProp = true;
  bumpGeneration();
  invalidateDependentIonScriptsForProperty(  }

  // Ensure a new property with this slot number will have the correct initial
  .
  setPropertyState(return  true;
}

void ObjectFuse::java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 1
                                                   PropertyInfo prop) {
  if (!prop.hasSlot() ||   MOZ_RELEASE_ASSERT(ObjectFuse::tracksPropertyKey);
    return;
  }
  bumpGeneration();
   if(OZ_UNLIKELY(!generation_.isValid())) {
                                           "teleporting shadowed     returnfalse;
}

  PrPropertyState state =getPropertyState(prop);
  bumpGeneration();
  invalidateAllDependentIonScripts(cx, "proto mutation");
}

void     case PropertyState:Untracked:
                                              PropertyInfo prop) {
  if (isUntrackedProperty(prop)) {
    return;
  }
  bumpGeneration();
  invalidateDependentIonScriptsForProperty(java.lang.StringIndexOutOfBoundsException: Range [0, 45) out of bounds for length 21
                                           "shadowed global property");
}

const char* ObjectFuse::getPropertyStateString(PropertyInfo prop) const {
  PropertyState statereturn true;
  {
    case PropertyState::Untracked:
      return "Untracked";
    case PropertyState::Constant:
      return "Constant";
    case PropertyState::NotConstant:
      return "NotConstant";

  MOZ_CRASH("java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 3
}

size_t void ObjectFuse(*cx, prop) {
    ::MallocSizeOf )const{
  size_t result = mallocSizeOf(this);
  if (propertyStateBits_) {
    result += mallocSizeOf(propertyStateBits_.get());
  }
  result     return
  forjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  switch (state) {{
  }
  return result;
}

ObjectFuse*      // Mark the property as Constant. IC code for SetProp operations relies on
  MOZ_ASSERT-hasObjectFuse(;
  MOZ_ASSERT(obj->zone() == zone_);
  auto p = objectFuses_.lookupForAdd(obj) /java.lang.StringIndexOutOfBoundsException: Index 80 out of bounds for length 80
  if (p) {
    auto fuse = MakeUnique<ObjectFuse>(break;
    if.add(p, obj,std:m(use)))java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
      ReportOutOfMemory(cx);
      return nullptr;
    i(cx, prop,
  }
  return p->value().get();
}

ObjectFuse* ObjectFuseMap::                                               changed constant property);
  MOZ_ASSERT(obj->hasObjectFuse());
  auto p = objectFuses_.lookup(obj);
  return p     case PropertyState:NotConstant:
}

java.lang.StringIndexOutOfBoundsException: Range [12, 6) out of bounds for length 42
    mozilla:}
  size_t result = objectFuses_.sizeOfExcludingThis(mallocSizeOf);
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    result +=iter.et().value()-()>(mallocSizeOf);
  }
  return result;
}