Get rid of NULLs in xfa/

xfa/fxfa/parser/xfa_script_hostpseudomodel.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fxfa/parser/xfa_script_hostpseudomodel.h"
 
 #include "xfa/fxfa/app/xfa_ffnotify.h"
 #include "xfa/fxfa/parser/xfa_doclayout.h"
@@ skipping 295 matching lines @@
   }
   int32_t iLength = pArguments->GetLength();
   if (iLength != 1) {
     ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"openList");
     return;
   }
   CXFA_FFNotify* pNotify = m_pDocument->GetParser()->GetNotify();
   if (!pNotify) {
     return;
   }
-  CXFA_Node* pNode = NULL;
+  CXFA_Node* pNode = nullptr;
   if (iLength >= 1) {
     std::unique_ptr<CFXJSE_Value> pValue(pArguments->GetValue(0));
     if (FXJSE_Value_IsObject(pValue.get())) {
       pNode = ToNode(pValue.get(), nullptr);
     } else if (FXJSE_Value_IsUTF8String(pValue.get())) {
       CFX_ByteString bsString;
       FXJSE_Value_ToUTF8String(pValue.get(), bsString);
       CFX_WideString wsExpression =
           CFX_WideString::FromUTF8(bsString.AsStringC());
       CXFA_ScriptContext* pScriptContext = m_pDocument->GetScriptContext();
@@ skipping 115 matching lines @@
   if (iLength >= 1) {
     CFX_ByteString bsExpression = pArguments->GetUTF8String(0);
     wsExpression = CFX_WideString::FromUTF8(bsExpression.AsStringC());
   }
   if (wsExpression.IsEmpty()) {
     pNotify->ResetData();
     return;
   }
   int32_t iStart = 0;
   CFX_WideString wsName;
-  CXFA_Node* pNode = NULL;
+  CXFA_Node* pNode = nullptr;
   int32_t iExpLength = wsExpression.GetLength();
   while (iStart < iExpLength) {
     iStart = XFA_FilterName(wsExpression.AsStringC(), iStart, wsName);
     CXFA_ScriptContext* pScriptContext = m_pDocument->GetScriptContext();
     if (!pScriptContext) {
       return;
     }
     CXFA_Object* pObject = pScriptContext->GetThisObject();
     if (!pObject) {
       return;
@@ skipping 40 matching lines @@
   }
   int32_t iLength = pArguments->GetLength();
   if (iLength != 1) {
     ThrowException(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"setFocus");
     return;
   }
   CXFA_FFNotify* pNotify = m_pDocument->GetParser()->GetNotify();
   if (!pNotify) {
     return;
   }
-  CXFA_Node* pNode = NULL;
+  CXFA_Node* pNode = nullptr;
   if (iLength >= 1) {
     std::unique_ptr<CFXJSE_Value> pValue(pArguments->GetValue(0));
     if (FXJSE_Value_IsObject(pValue.get())) {
       pNode = ToNode(pValue.get(), nullptr);
     } else if (FXJSE_Value_IsUTF8String(pValue.get())) {
       CFX_ByteString bsString;
       FXJSE_Value_ToUTF8String(pValue.get(), bsString);
       CFX_WideString wsExpression =
           CFX_WideString::FromUTF8(bsString.AsStringC());
       CXFA_ScriptContext* pScriptContext = m_pDocument->GetScriptContext();
@@ skipping 74 matching lines @@
       wsMessage, bsTitle, dwMessageType, dwButtonType);
   CFXJSE_Value* pValue = pArguments->GetReturnValue();
   if (pValue) {
     FXJSE_Value_SetInteger(pValue, iValue);
   }
 }
 FX_BOOL CScript_HostPseudoModel::Script_HostPseudoModel_ValidateArgsForMsg(
     CFXJSE_Arguments* pArguments,
     int32_t iArgIndex,
     CFX_WideString& wsValue) {
-  if (pArguments == NULL || iArgIndex < 0) {
+  if (!pArguments || iArgIndex < 0)
     return FALSE;
-  }
+
   FX_BOOL bIsJsType = FALSE;
   if (m_pDocument->GetScriptContext()->GetType() ==
       XFA_SCRIPTLANGTYPE_Javascript) {
     bIsJsType = TRUE;
   }
   std::unique_ptr<CFXJSE_Value> pValueArg(pArguments->GetValue(iArgIndex));
   if (!FXJSE_Value_IsUTF8String(pValueArg.get()) && bIsJsType) {
     ThrowException(XFA_IDS_ARGUMENT_MISMATCH);
     return FALSE;
   }
@@ skipping 169 matching lines @@
   CXFA_FFNotify* pNotify = m_pDocument->GetParser()->GetNotify();
   if (!pNotify) {
     return;
   }
   CFX_WideString wsDataTime = pNotify->GetCurrentDateTime();
   CFXJSE_Value* pValue = pArguments->GetReturnValue();
   if (pValue) {
     FXJSE_Value_SetUTF8String(pValue, FX_UTF8Encode(wsDataTime).AsStringC());
   }
 }