C++ (Cpp) VarEnv Examples

Example #1

File: instrumentation.cpp Project: KWMalik/hiphop-php

void Injection::execute() const {
  if (m_builtin) {
    ASSERT(m_callback);
    // Execute function in runtime
    m_callback(m_arg);
    return;
  }
  // Execute php code piece
  TypedValue retval;
  VarEnv *varEnv = NULL;
  ActRec *cfpSave = NULL;
  ObjectData *this_ = NULL;
  Class *cls = NULL;
  ActRec *fp = g_vmContext->getFP();
  if (fp) {
    if (!fp->hasVarEnv()) {
      fp->m_varEnv = VarEnv::createLazyAttach(fp);
    }
    varEnv = fp->m_varEnv;
    cfpSave = varEnv->getCfp();
    if (fp->hasThis()) {
      this_ = fp->getThis();
    } else if (fp->hasClass()) {
      cls = fp->getClass();
    }
  }
  // Note: For now we don't merge analysis code's class and function.
  // Later we might decide to do so
  g_vmContext->invokeFunc(&retval, m_unit->getMain(), Array::Create(), this_,
                          cls, varEnv, NULL, NULL);
  if (varEnv) {
    varEnv->setCfp(cfpSave);
  }
}

Example #2

File: ext_variable.cpp Project: Halfnhav/hiphop-php

Array f_get_defined_vars() {
  VarEnv* v = g_vmContext->getVarEnv();
  if (v) {
    return v->getDefinedVariables();
  } else {
    return Array::Create();
  }
}

Example #3

File: ext_variable.cpp Project: Halfnhav/hiphop-php

int64_t f_extract(CArrRef var_array, int extract_type /* = EXTR_OVERWRITE */,
                  CStrRef prefix /* = "" */) {
  bool reference = extract_type & EXTR_REFS;
  extract_type &= ~EXTR_REFS;

  VarEnv* v = g_vmContext->getVarEnv();
  if (!v) return 0;
  int count = 0;
  for (ArrayIter iter(var_array); iter; ++iter) {
    String name = iter.first();
    StringData* nameData = name.get();
    switch (extract_type) {
      case EXTR_SKIP:
        if (v->lookup(nameData) != NULL) {
          continue;
        }
        break;
      case EXTR_IF_EXISTS:
        if (v->lookup(nameData) == NULL) {
          continue;
        }
        break;
      case EXTR_PREFIX_SAME:
        if (v->lookup(nameData) != NULL) {
          name = prefix + "_" + name;
        }
        break;
      case EXTR_PREFIX_ALL:
        name = prefix + "_" + name;
        break;
      case EXTR_PREFIX_INVALID:
        if (!is_valid_var_name(nameData->data(), nameData->size())) {
          name = prefix + "_" + name;
        }
        break;
      case EXTR_PREFIX_IF_EXISTS:
        if (v->lookup(nameData) == NULL) {
          continue;
        }
        name = prefix + "_" + name;
        break;
      default:
        break;
    }
    nameData = name.get();
    // skip invalid variable names, as in PHP
    if (!is_valid_var_name(nameData->data(), nameData->size())) {
      continue;
    }
    g_vmContext->setVar(nameData, iter.nvSecond(), reference);
    count++;
  }
  return count;
}

Example #4

File: ext_wddx.cpp Project: anthonyattard/hhvm

bool WddxPacket::add_var(const String& varName, bool hasVarTag) {
  VarEnv* v = g_context->getOrCreateVarEnv();
  if (!v) return false;
  Variant varVariant = *reinterpret_cast<Variant*>(v->lookup(varName.get()));
  return recursiveAddVar(varName, varVariant, hasVarTag);
}

Example #5

File: ext_std_variable.cpp Project: Thomascarette/hhvm

ALWAYS_INLINE
static Array get_defined_vars() {
  VarEnv* v = g_context->getOrCreateVarEnv();
  return v ? v->getDefinedVariables() : empty_array();
}