Convert XFA_PACKET to an enum class

This CL converts the XFA_PACKET enum to the XFA_PacketType enum class.

Change-Id: Ic65e61c2ee681750ca0e672bc4206d676556a862
Reviewed-on: https://pdfium-review.googlesource.com/18110
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

6 files changed, 105 insertions, 90 deletions

diff --git a/xfa/fxfa/fxfa_basic.h b/xfa/fxfa/fxfa_basic.h
index 8695b48df4..5f1369906c 100644
--- a/xfa/fxfa/fxfa_basic.h
+++ b/xfa/fxfa/fxfa_basic.h
@@ -47,42 +47,48 @@ enum XFA_HashCode : uint32_t {
   XFA_HASHCODE_Xmpmeta = 0x132a8fbc
 };
 
-enum XFA_PACKET {
-  XFA_PACKET_USER,
-  XFA_PACKET_SourceSet,
-  XFA_PACKET_Pdf,
-  XFA_PACKET_Xdc,
-  XFA_PACKET_XDP,
-  XFA_PACKET_Xmpmeta,
-  XFA_PACKET_Xfdf,
-  XFA_PACKET_Config,
-  XFA_PACKET_LocaleSet,
-  XFA_PACKET_Stylesheet,
-  XFA_PACKET_Template,
-  XFA_PACKET_Signature,
-  XFA_PACKET_Datasets,
-  XFA_PACKET_Form,
-  XFA_PACKET_ConnectionSet,
+enum class XFA_PacketType : uint8_t {
+  User,
+  SourceSet,
+  Pdf,
+  Xdc,
+  Xdp,
+  Xmpmeta,
+  Xfdf,
+  Config,
+  LocaleSet,
+  Stylesheet,
+  Template,
+  Signature,
+  Datasets,
+  Form,
+  ConnectionSet,
 };
 
 enum XFA_XDPPACKET {
   XFA_XDPPACKET_UNKNOWN = 0,
-  XFA_XDPPACKET_Config = 1 << XFA_PACKET_Config,
-  XFA_XDPPACKET_Template = 1 << XFA_PACKET_Template,
-  XFA_XDPPACKET_Datasets = 1 << XFA_PACKET_Datasets,
-  XFA_XDPPACKET_Form = 1 << XFA_PACKET_Form,
-  XFA_XDPPACKET_LocaleSet = 1 << XFA_PACKET_LocaleSet,
-  XFA_XDPPACKET_ConnectionSet = 1 << XFA_PACKET_ConnectionSet,
-  XFA_XDPPACKET_SourceSet = 1 << XFA_PACKET_SourceSet,
-  XFA_XDPPACKET_Xdc = 1 << XFA_PACKET_Xdc,
-  XFA_XDPPACKET_Pdf = 1 << XFA_PACKET_Pdf,
-  XFA_XDPPACKET_Xfdf = 1 << XFA_PACKET_Xfdf,
-  XFA_XDPPACKET_Xmpmeta = 1 << XFA_PACKET_Xmpmeta,
-  XFA_XDPPACKET_Signature = 1 << XFA_PACKET_Signature,
-  XFA_XDPPACKET_Stylesheet = 1 << XFA_PACKET_Stylesheet,
-  XFA_XDPPACKET_USER = 1 << XFA_PACKET_USER,
-  XFA_XDPPACKET_XDP = 1 << XFA_PACKET_XDP,
+  XFA_XDPPACKET_Config = 1 << static_cast<uint8_t>(XFA_PacketType::Config),
+  XFA_XDPPACKET_Template = 1 << static_cast<uint8_t>(XFA_PacketType::Template),
+  XFA_XDPPACKET_Datasets = 1 << static_cast<uint8_t>(XFA_PacketType::Datasets),
+  XFA_XDPPACKET_Form = 1 << static_cast<uint8_t>(XFA_PacketType::Form),
+  XFA_XDPPACKET_LocaleSet = 1
+                            << static_cast<uint8_t>(XFA_PacketType::LocaleSet),
+  XFA_XDPPACKET_ConnectionSet =
+      1 << static_cast<uint8_t>(XFA_PacketType::ConnectionSet),
+  XFA_XDPPACKET_SourceSet = 1
+                            << static_cast<uint8_t>(XFA_PacketType::SourceSet),
+  XFA_XDPPACKET_Xdc = 1 << static_cast<uint8_t>(XFA_PacketType::Xdc),
+  XFA_XDPPACKET_Pdf = 1 << static_cast<uint8_t>(XFA_PacketType::Pdf),
+  XFA_XDPPACKET_Xfdf = 1 << static_cast<uint8_t>(XFA_PacketType::Xfdf),
+  XFA_XDPPACKET_Xmpmeta = 1 << static_cast<uint8_t>(XFA_PacketType::Xmpmeta),
+  XFA_XDPPACKET_Signature = 1
+                            << static_cast<uint8_t>(XFA_PacketType::Signature),
+  XFA_XDPPACKET_Stylesheet =
+      1 << static_cast<uint8_t>(XFA_PacketType::Stylesheet),
+  XFA_XDPPACKET_USER = 1 << static_cast<uint8_t>(XFA_PacketType::User),
+  XFA_XDPPACKET_XDP = 1 << static_cast<uint8_t>(XFA_PacketType::Xdp),
 };
+
 enum XFA_XDPPACKET_FLAGS {
   XFA_XDPPACKET_FLAGS_COMPLETEMATCH = 1,
   XFA_XDPPACKET_FLAGS_PREFIXMATCH = 2,
@@ -90,6 +96,7 @@ enum XFA_XDPPACKET_FLAGS {
   XFA_XDPPACKET_FLAGS_SUPPORTONE = 8,
   XFA_XDPPACKET_FLAGS_SUPPORTMANY = 16,
 };
+
 struct XFA_PACKETINFO {
   uint32_t uHash;
   const wchar_t* pName;
@@ -931,6 +938,7 @@ enum class XFA_Element : int32_t {
   Tagged,
   Items
 };
+
 struct XFA_ELEMENTINFO {
   uint32_t uHash;
   const wchar_t* pName;
@@ -1006,6 +1014,7 @@ struct XFA_NOTSUREATTRIBUTE {
 };
 
 typedef void (CJX_Object::*XFA_METHOD_CALLBACK)(CFXJSE_Arguments* pArguments);
+
 struct XFA_METHODINFO {
   uint32_t uHash;
   const wchar_t* pName;
diff --git a/xfa/fxfa/parser/cxfa_dataexporter.cpp b/xfa/fxfa/parser/cxfa_dataexporter.cpp
index bc6506d6d3..8b16ae745c 100644
--- a/xfa/fxfa/parser/cxfa_dataexporter.cpp
+++ b/xfa/fxfa/parser/cxfa_dataexporter.cpp
@@ -399,7 +399,7 @@ void XFA_DataExporter_RegenerateFormFile(
     }
     pStream->WriteString(L" xmlns=\"");
 
-    const wchar_t* pURI = XFA_GetPacketByIndex(XFA_PACKET_Form)->pURI;
+    const wchar_t* pURI = XFA_GetPacketByIndex(XFA_PacketType::Form)->pURI;
     pStream->WriteString(WideStringView(pURI, wcslen(pURI)));
 
     WideString wsVersionNumber;
diff --git a/xfa/fxfa/parser/cxfa_document.cpp b/xfa/fxfa/parser/cxfa_document.cpp
index 0489ae696c..c80dec979a 100644
--- a/xfa/fxfa/parser/cxfa_document.cpp
+++ b/xfa/fxfa/parser/cxfa_document.cpp
@@ -301,7 +301,7 @@ CFXJSE_Engine* CXFA_Document::GetScriptContext() {
 XFA_VERSION CXFA_Document::RecognizeXFAVersionNumber(
     const WideString& wsTemplateNS) {
   WideStringView wsTemplateURIPrefix =
-      XFA_GetPacketByIndex(XFA_PACKET_Template)->pURI;
+      XFA_GetPacketByIndex(XFA_PacketType::Template)->pURI;
   size_t nPrefixLength = wsTemplateURIPrefix.GetLength();
   if (WideStringView(wsTemplateNS.c_str(), wsTemplateNS.GetLength()) !=
       wsTemplateURIPrefix) {
diff --git a/xfa/fxfa/parser/cxfa_simple_parser.cpp b/xfa/fxfa/parser/cxfa_simple_parser.cpp
index eca93bd6bc..79214356fe 100644
--- a/xfa/fxfa/parser/cxfa_simple_parser.cpp
+++ b/xfa/fxfa/parser/cxfa_simple_parser.cpp
@@ -168,25 +168,26 @@ bool FindAttributeWithNS(CFX_XMLElement* pElement,
 
 CFX_XMLNode* GetDataSetsFromXDP(CFX_XMLNode* pXMLDocumentNode) {
   if (MatchNodeName(pXMLDocumentNode,
-                    XFA_GetPacketByIndex(XFA_PACKET_Datasets)->pName,
-                    XFA_GetPacketByIndex(XFA_PACKET_Datasets)->pURI,
-                    XFA_GetPacketByIndex(XFA_PACKET_Datasets)->eFlags)) {
+                    XFA_GetPacketByIndex(XFA_PacketType::Datasets)->pName,
+                    XFA_GetPacketByIndex(XFA_PacketType::Datasets)->pURI,
+                    XFA_GetPacketByIndex(XFA_PacketType::Datasets)->eFlags)) {
     return pXMLDocumentNode;
   }
   if (!MatchNodeName(pXMLDocumentNode,
-                     XFA_GetPacketByIndex(XFA_PACKET_XDP)->pName,
-                     XFA_GetPacketByIndex(XFA_PACKET_XDP)->pURI,
-                     XFA_GetPacketByIndex(XFA_PACKET_XDP)->eFlags)) {
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdp)->pName,
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdp)->pURI,
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdp)->eFlags)) {
     return nullptr;
   }
   for (CFX_XMLNode* pDatasetsNode =
            pXMLDocumentNode->GetNodeItem(CFX_XMLNode::FirstChild);
        pDatasetsNode;
        pDatasetsNode = pDatasetsNode->GetNodeItem(CFX_XMLNode::NextSibling)) {
-    if (!MatchNodeName(pDatasetsNode,
-                       XFA_GetPacketByIndex(XFA_PACKET_Datasets)->pName,
-                       XFA_GetPacketByIndex(XFA_PACKET_Datasets)->pURI,
-                       XFA_GetPacketByIndex(XFA_PACKET_Datasets)->eFlags)) {
+    if (!MatchNodeName(
+            pDatasetsNode,
+            XFA_GetPacketByIndex(XFA_PacketType::Datasets)->pName,
+            XFA_GetPacketByIndex(XFA_PacketType::Datasets)->pURI,
+            XFA_GetPacketByIndex(XFA_PacketType::Datasets)->eFlags)) {
       continue;
     }
     return pDatasetsNode;
@@ -448,9 +449,9 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_XDP(
     CFX_XMLNode* pXMLDocumentNode,
     XFA_XDPPACKET ePacketID) {
   if (!MatchNodeName(pXMLDocumentNode,
-                     XFA_GetPacketByIndex(XFA_PACKET_XDP)->pName,
-                     XFA_GetPacketByIndex(XFA_PACKET_XDP)->pURI,
-                     XFA_GetPacketByIndex(XFA_PACKET_XDP)->eFlags)) {
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdp)->pName,
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdp)->pURI,
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdp)->eFlags)) {
     return nullptr;
   }
 
@@ -478,7 +479,8 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_XDP(
            pXMLDocumentNode->GetNodeItem(CFX_XMLNode::FirstChild);
        pChildItem;
        pChildItem = pChildItem->GetNodeItem(CFX_XMLNode::NextSibling)) {
-    const XFA_PACKETINFO* pPacketInfo = XFA_GetPacketByIndex(XFA_PACKET_Config);
+    const XFA_PACKETINFO* pPacketInfo =
+        XFA_GetPacketByIndex(XFA_PacketType::Config);
     if (!MatchNodeName(pChildItem, pPacketInfo->pName, pPacketInfo->pURI,
                        pPacketInfo->eFlags)) {
       continue;
@@ -577,9 +579,9 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_Config(
     CFX_XMLNode* pXMLDocumentNode,
     XFA_XDPPACKET ePacketID) {
   if (!MatchNodeName(pXMLDocumentNode,
-                     XFA_GetPacketByIndex(XFA_PACKET_Config)->pName,
-                     XFA_GetPacketByIndex(XFA_PACKET_Config)->pURI,
-                     XFA_GetPacketByIndex(XFA_PACKET_Config)->eFlags)) {
+                     XFA_GetPacketByIndex(XFA_PacketType::Config)->pName,
+                     XFA_GetPacketByIndex(XFA_PacketType::Config)->pURI,
+                     XFA_GetPacketByIndex(XFA_PacketType::Config)->eFlags)) {
     return nullptr;
   }
   CXFA_Node* pNode =
@@ -588,7 +590,7 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_Config(
     return nullptr;
 
   pNode->JSNode()->SetCData(XFA_Attribute::Name,
-                            XFA_GetPacketByIndex(XFA_PACKET_Config)->pName,
+                            XFA_GetPacketByIndex(XFA_PacketType::Config)->pName,
                             false, false);
   if (!NormalLoader(pNode, pXMLDocumentNode, ePacketID, true))
     return nullptr;
@@ -603,17 +605,17 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_TemplateForm(
   CXFA_Node* pNode = nullptr;
   if (ePacketID == XFA_XDPPACKET_Template) {
     if (MatchNodeName(pXMLDocumentNode,
-                      XFA_GetPacketByIndex(XFA_PACKET_Template)->pName,
-                      XFA_GetPacketByIndex(XFA_PACKET_Template)->pURI,
-                      XFA_GetPacketByIndex(XFA_PACKET_Template)->eFlags)) {
+                      XFA_GetPacketByIndex(XFA_PacketType::Template)->pName,
+                      XFA_GetPacketByIndex(XFA_PacketType::Template)->pURI,
+                      XFA_GetPacketByIndex(XFA_PacketType::Template)->eFlags)) {
       pNode =
           m_pFactory->CreateNode(XFA_XDPPACKET_Template, XFA_Element::Template);
       if (!pNode)
         return nullptr;
 
       pNode->JSNode()->SetCData(
-          XFA_Attribute::Name, XFA_GetPacketByIndex(XFA_PACKET_Template)->pName,
-          false, false);
+          XFA_Attribute::Name,
+          XFA_GetPacketByIndex(XFA_PacketType::Template)->pName, false, false);
       if (m_bDocumentParser) {
         CFX_XMLElement* pXMLDocumentElement =
             static_cast<CFX_XMLElement*>(pXMLDocumentNode);
@@ -628,9 +630,9 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_TemplateForm(
     }
   } else if (ePacketID == XFA_XDPPACKET_Form) {
     if (MatchNodeName(pXMLDocumentNode,
-                      XFA_GetPacketByIndex(XFA_PACKET_Form)->pName,
-                      XFA_GetPacketByIndex(XFA_PACKET_Form)->pURI,
-                      XFA_GetPacketByIndex(XFA_PACKET_Form)->eFlags)) {
+                      XFA_GetPacketByIndex(XFA_PacketType::Form)->pName,
+                      XFA_GetPacketByIndex(XFA_PacketType::Form)->pURI,
+                      XFA_GetPacketByIndex(XFA_PacketType::Form)->eFlags)) {
       CFX_XMLElement* pXMLDocumentElement =
           static_cast<CFX_XMLElement*>(pXMLDocumentNode);
       WideString wsChecksum = pXMLDocumentElement->GetString(L"checksum");
@@ -654,9 +656,9 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_TemplateForm(
       if (!pNode)
         return nullptr;
 
-      pNode->JSNode()->SetCData(XFA_Attribute::Name,
-                                XFA_GetPacketByIndex(XFA_PACKET_Form)->pName,
-                                false, false);
+      pNode->JSNode()->SetCData(
+          XFA_Attribute::Name,
+          XFA_GetPacketByIndex(XFA_PacketType::Form)->pName, false, false);
       pNode->JSNode()->SetAttribute(XFA_Attribute::Checksum,
                                     wsChecksum.AsStringView(), false);
       CXFA_Node* pTemplateRoot =
@@ -691,9 +693,9 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_Data(
     if (!pNode)
       return nullptr;
 
-    pNode->JSNode()->SetCData(XFA_Attribute::Name,
-                              XFA_GetPacketByIndex(XFA_PACKET_Datasets)->pName,
-                              false, false);
+    pNode->JSNode()->SetCData(
+        XFA_Attribute::Name,
+        XFA_GetPacketByIndex(XFA_PacketType::Datasets)->pName, false, false);
     if (!DataLoader(pNode, pDatasetsXMLNode, false))
       return nullptr;
 
@@ -703,8 +705,8 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_Data(
 
   CFX_XMLNode* pDataXMLNode = nullptr;
   if (MatchNodeName(pXMLDocumentNode, L"data",
-                    XFA_GetPacketByIndex(XFA_PACKET_Datasets)->pURI,
-                    XFA_GetPacketByIndex(XFA_PACKET_Datasets)->eFlags)) {
+                    XFA_GetPacketByIndex(XFA_PacketType::Datasets)->pURI,
+                    XFA_GetPacketByIndex(XFA_PacketType::Datasets)->eFlags)) {
     static_cast<CFX_XMLElement*>(pXMLDocumentNode)
         ->RemoveAttribute(L"xmlns:xfa");
     pDataXMLNode = pXMLDocumentNode;
@@ -751,10 +753,11 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_LocaleConnectionSourceSet(
     XFA_XDPPACKET ePacketID) {
   CXFA_Node* pNode = nullptr;
   if (ePacketID == XFA_XDPPACKET_LocaleSet) {
-    if (MatchNodeName(pXMLDocumentNode,
-                      XFA_GetPacketByIndex(XFA_PACKET_LocaleSet)->pName,
-                      XFA_GetPacketByIndex(XFA_PACKET_LocaleSet)->pURI,
-                      XFA_GetPacketByIndex(XFA_PACKET_LocaleSet)->eFlags)) {
+    if (MatchNodeName(
+            pXMLDocumentNode,
+            XFA_GetPacketByIndex(XFA_PacketType::LocaleSet)->pName,
+            XFA_GetPacketByIndex(XFA_PacketType::LocaleSet)->pURI,
+            XFA_GetPacketByIndex(XFA_PacketType::LocaleSet)->eFlags)) {
       pNode = m_pFactory->CreateNode(XFA_XDPPACKET_LocaleSet,
                                      XFA_Element::LocaleSet);
       if (!pNode)
@@ -762,15 +765,16 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_LocaleConnectionSourceSet(
 
       pNode->JSNode()->SetCData(
           XFA_Attribute::Name,
-          XFA_GetPacketByIndex(XFA_PACKET_LocaleSet)->pName, false, false);
+          XFA_GetPacketByIndex(XFA_PacketType::LocaleSet)->pName, false, false);
       if (!NormalLoader(pNode, pXMLDocumentNode, ePacketID, true))
         return nullptr;
     }
   } else if (ePacketID == XFA_XDPPACKET_ConnectionSet) {
-    if (MatchNodeName(pXMLDocumentNode,
-                      XFA_GetPacketByIndex(XFA_PACKET_ConnectionSet)->pName,
-                      XFA_GetPacketByIndex(XFA_PACKET_ConnectionSet)->pURI,
-                      XFA_GetPacketByIndex(XFA_PACKET_ConnectionSet)->eFlags)) {
+    if (MatchNodeName(
+            pXMLDocumentNode,
+            XFA_GetPacketByIndex(XFA_PacketType::ConnectionSet)->pName,
+            XFA_GetPacketByIndex(XFA_PacketType::ConnectionSet)->pURI,
+            XFA_GetPacketByIndex(XFA_PacketType::ConnectionSet)->eFlags)) {
       pNode = m_pFactory->CreateNode(XFA_XDPPACKET_ConnectionSet,
                                      XFA_Element::ConnectionSet);
       if (!pNode)
@@ -778,15 +782,17 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_LocaleConnectionSourceSet(
 
       pNode->JSNode()->SetCData(
           XFA_Attribute::Name,
-          XFA_GetPacketByIndex(XFA_PACKET_ConnectionSet)->pName, false, false);
+          XFA_GetPacketByIndex(XFA_PacketType::ConnectionSet)->pName, false,
+          false);
       if (!NormalLoader(pNode, pXMLDocumentNode, ePacketID, true))
         return nullptr;
     }
   } else if (ePacketID == XFA_XDPPACKET_SourceSet) {
-    if (MatchNodeName(pXMLDocumentNode,
-                      XFA_GetPacketByIndex(XFA_PACKET_SourceSet)->pName,
-                      XFA_GetPacketByIndex(XFA_PACKET_SourceSet)->pURI,
-                      XFA_GetPacketByIndex(XFA_PACKET_SourceSet)->eFlags)) {
+    if (MatchNodeName(
+            pXMLDocumentNode,
+            XFA_GetPacketByIndex(XFA_PacketType::SourceSet)->pName,
+            XFA_GetPacketByIndex(XFA_PacketType::SourceSet)->pURI,
+            XFA_GetPacketByIndex(XFA_PacketType::SourceSet)->eFlags)) {
       pNode = m_pFactory->CreateNode(XFA_XDPPACKET_SourceSet,
                                      XFA_Element::SourceSet);
       if (!pNode)
@@ -794,7 +800,7 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_LocaleConnectionSourceSet(
 
       pNode->JSNode()->SetCData(
           XFA_Attribute::Name,
-          XFA_GetPacketByIndex(XFA_PACKET_SourceSet)->pName, false, false);
+          XFA_GetPacketByIndex(XFA_PacketType::SourceSet)->pName, false, false);
       if (!NormalLoader(pNode, pXMLDocumentNode, ePacketID, true))
         return nullptr;
     }
@@ -808,9 +814,9 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_Xdc(
     CFX_XMLNode* pXMLDocumentNode,
     XFA_XDPPACKET ePacketID) {
   if (!MatchNodeName(pXMLDocumentNode,
-                     XFA_GetPacketByIndex(XFA_PACKET_Xdc)->pName,
-                     XFA_GetPacketByIndex(XFA_PACKET_Xdc)->pURI,
-                     XFA_GetPacketByIndex(XFA_PACKET_Xdc)->eFlags))
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdc)->pName,
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdc)->pURI,
+                     XFA_GetPacketByIndex(XFA_PacketType::Xdc)->eFlags))
     return nullptr;
 
   CXFA_Node* pNode =
@@ -819,8 +825,8 @@ CXFA_Node* CXFA_SimpleParser::ParseAsXDPPacket_Xdc(
     return nullptr;
 
   pNode->JSNode()->SetCData(XFA_Attribute::Name,
-                            XFA_GetPacketByIndex(XFA_PACKET_Xdc)->pName, false,
-                            false);
+                            XFA_GetPacketByIndex(XFA_PacketType::Xdc)->pName,
+                            false, false);
   pNode->SetXMLMappingNode(pXMLDocumentNode);
   return pNode;
 }
diff --git a/xfa/fxfa/parser/xfa_utils.cpp b/xfa/fxfa/parser/xfa_utils.cpp
index e5091eec0f..122cfb0a1a 100644
--- a/xfa/fxfa/parser/xfa_utils.cpp
+++ b/xfa/fxfa/parser/xfa_utils.cpp
@@ -464,8 +464,8 @@ const XFA_ATTRIBUTEENUMINFO* XFA_GetAttributeEnumByName(
   return nullptr;
 }
 
-const XFA_PACKETINFO* XFA_GetPacketByIndex(XFA_PACKET ePacket) {
-  return g_XFAPacketData + ePacket;
+const XFA_PACKETINFO* XFA_GetPacketByIndex(XFA_PacketType ePacket) {
+  return g_XFAPacketData + static_cast<uint8_t>(ePacket);
 }
 
 const XFA_PACKETINFO* XFA_GetPacketByID(uint32_t dwPacket) {
diff --git a/xfa/fxfa/parser/xfa_utils.h b/xfa/fxfa/parser/xfa_utils.h
index 359a2d8660..a7498561e1 100644
--- a/xfa/fxfa/parser/xfa_utils.h
+++ b/xfa/fxfa/parser/xfa_utils.h
@@ -189,7 +189,7 @@ const XFA_ATTRIBUTEINFO* XFA_GetAttributeByName(const WideStringView& wsName);
 const XFA_ATTRIBUTEINFO* XFA_GetAttributeByID(XFA_Attribute eName);
 const XFA_ATTRIBUTEENUMINFO* XFA_GetAttributeEnumByName(
     const WideStringView& wsName);
-const XFA_PACKETINFO* XFA_GetPacketByIndex(XFA_PACKET ePacket);
+const XFA_PACKETINFO* XFA_GetPacketByIndex(XFA_PacketType ePacket);
 const XFA_PACKETINFO* XFA_GetPacketByID(uint32_t dwPacket);
 
 #endif  // XFA_FXFA_PARSER_XFA_UTILS_H_