[fidl][dart] Prepare for 64bits ordinals
FIDL-524 #comment
Change-Id: I7a4f7b41506bff79e093c513a3d2b18ba5df3e2f
diff --git a/bin/fidlgen_dart/backend/ir/ir.go b/bin/fidlgen_dart/backend/ir/ir.go
index 61fe0cf..d99b5e4 100644
--- a/bin/fidlgen_dart/backend/ir/ir.go
+++ b/bin/fidlgen_dart/backend/ir/ir.go
@@ -177,8 +177,10 @@
// Method represents a method declaration within an interface declaration.
type Method struct {
- Ordinal types.Ordinal
+ Ordinal string
OrdinalName string
+ GenOrdinal string
+ GenOrdinalName string
Name string
HasRequest bool
Request []Parameter
@@ -596,7 +598,7 @@
if err != nil {
panic(fmt.Sprintf("JSON IR contains invalid numeric literal: %s", val.Value))
}
- return fmt.Sprintf("0x%s", strconv.FormatUint(num, 16))
+ return fmt.Sprintf("%#x", num)
case types.TrueLiteral:
return "true"
case types.FalseLiteral:
@@ -964,8 +966,10 @@
}
_, transitional := val.LookupAttribute("Transitional")
return Method{
- Ordinal: val.Ordinal,
+ Ordinal: fmt.Sprintf("%#x", uint64(val.Ordinal)<<32),
OrdinalName: fmt.Sprintf("_k%s_%s_Ordinal", protocol.Name, val.Name),
+ GenOrdinal: fmt.Sprintf("%#x", uint64(val.GenOrdinal)<<32),
+ GenOrdinalName: fmt.Sprintf("_k%s_%s_GenOrdinal", protocol.Name, val.Name),
Name: name,
HasRequest: val.HasRequest,
Request: request,
diff --git a/bin/fidlgen_dart/backend/templates/interface.tmpl.go b/bin/fidlgen_dart/backend/templates/interface.tmpl.go
index 776763d..1289e3d 100644
--- a/bin/fidlgen_dart/backend/templates/interface.tmpl.go
+++ b/bin/fidlgen_dart/backend/templates/interface.tmpl.go
@@ -38,6 +38,9 @@
{{ range .Methods }}
// {{ .Name }}: {{ if .HasRequest }}({{ template "Params" .Request }}){{ end }}{{ if .HasResponse }} -> ({{ template "Params" .Response.WireParameters }}){{ end }}
const int {{ .OrdinalName }} = {{ .Ordinal }};
+{{- if ne .Ordinal .GenOrdinal }}
+const int {{ .GenOrdinalName }} = {{ .GenOrdinal }};
+{{ end }}
const $fidl.MethodType {{ .TypeSymbol }} = {{ .TypeExpr }};
{{- end }}
@@ -62,6 +65,9 @@
{{- range .Methods }}
{{- if not .HasRequest }}
{{- if .HasResponse }}
+ {{- if ne .Ordinal .GenOrdinal }}
+ case {{ .GenOrdinalName }}:
+ {{ end }}
case {{ .OrdinalName }}:
final String _name = {{ .TypeSymbol }}.name;
try {
@@ -113,6 +119,9 @@
{{- range .Methods }}
{{- if .HasRequest }}
{{- if .HasResponse }}
+ {{- if ne .Ordinal .GenOrdinal }}
+ case {{ .GenOrdinalName }}:
+ {{ end }}
case {{ .OrdinalName }}:
final String _name = {{ .TypeSymbol }}.name;
try {
@@ -256,6 +265,9 @@
switch ($message.ordinal) {
{{- range .Methods }}
{{- if .HasRequest }}
+ {{- if ne .Ordinal .GenOrdinal }}
+ case {{ .GenOrdinalName }}:
+ {{ end }}
case {{ .OrdinalName }}:
final String _name = {{ .TypeSymbol }}.name;
try {
@@ -386,6 +398,9 @@
// {{ .Name }}: {{ if .HasRequest }}({{ template "AsyncParams" .Request }}){{ end -}}
{{- if .HasResponse }} -> ({{ template "AsyncParams" .Response.MethodParameters }}){{ end }}
const int {{ .OrdinalName }} = {{ .Ordinal }};
+{{- if ne .Ordinal .GenOrdinal }}
+const int {{ .GenOrdinalName }} = {{ .GenOrdinal }};
+{{ end }}
const $fidl.MethodType {{ .TypeSymbol }} = {{ .TypeExpr }};
{{- end }}
@@ -484,6 +499,9 @@
{{- range .Methods }}
{{- if not .HasRequest }}
{{- if .HasResponse }}
+ {{- if ne .Ordinal .GenOrdinal }}
+ case {{ .GenOrdinalName }}:
+ {{ end }}
case {{ .OrdinalName }}:
final String _name = {{ .TypeSymbol }}.name;
try {
@@ -528,6 +546,9 @@
{{- range .Methods }}
{{- if .HasRequest }}
{{- if .HasResponse }}
+ {{- if ne .Ordinal .GenOrdinal }}
+ case {{ .GenOrdinalName }}:
+ {{ end }}
case {{ .OrdinalName }}:
final String _name = {{ .TypeSymbol }}.name;
try {
@@ -657,6 +678,9 @@
switch ($message.ordinal) {
{{- range .Methods }}
{{- if .HasRequest }}
+ {{- if ne .Ordinal .GenOrdinal }}
+ case {{ .GenOrdinalName }}:
+ {{ end }}
case {{ .OrdinalName }}:
final String _name = {{ .TypeSymbol }}.name;
try {
diff --git a/bin/fidlgen_dart/goldens/doc_comments.test.fidl.json_async.dart.golden b/bin/fidlgen_dart/goldens/doc_comments.test.fidl.json_async.dart.golden
index 0099f86..1cd242a 100644
--- a/bin/fidlgen_dart/goldens/doc_comments.test.fidl.json_async.dart.golden
+++ b/bin/fidlgen_dart/goldens/doc_comments.test.fidl.json_async.dart.golden
@@ -194,14 +194,14 @@
typedef _VoidCallback = void Function();
// method: ()
-const int _kInterface_Method_Ordinal = 1061382220;
+const int _kInterface_Method_Ordinal = 0x3f43684c00000000;
const $fidl.MethodType _kInterface_Method_Type = $fidl.MethodType(
request: null,
response: null,
name: r"Interface.Method",
);
// onEvent: -> ()
-const int _kInterface_OnEvent_Ordinal = 325918733;
+const int _kInterface_OnEvent_Ordinal = 0x136d200d00000000;
const $fidl.MethodType _kInterface_OnEvent_Type = $fidl.MethodType(
request: null,
response: null,
diff --git a/bin/fidlgen_dart/goldens/ordinal_switch.test.fidl.json_async.dart.golden b/bin/fidlgen_dart/goldens/ordinal_switch.test.fidl.json_async.dart.golden
index 4de8ae5..7fb7285 100644
--- a/bin/fidlgen_dart/goldens/ordinal_switch.test.fidl.json_async.dart.golden
+++ b/bin/fidlgen_dart/goldens/ordinal_switch.test.fidl.json_async.dart.golden
@@ -43,14 +43,14 @@
typedef _VoidCallback = void Function();
// ordinalFive: ()
-const int _kSwitchingOrdinals_OrdinalFive_Ordinal = 2005164903;
+const int _kSwitchingOrdinals_OrdinalFive_Ordinal = 0x7784636700000000;
const $fidl.MethodType _kSwitchingOrdinals_OrdinalFive_Type = $fidl.MethodType(
request: null,
response: null,
name: r"SwitchingOrdinals.OrdinalFive",
);
// onlyGeneratedOrdinal: ()
-const int _kSwitchingOrdinals_OnlyGeneratedOrdinal_Ordinal = 667506719;
+const int _kSwitchingOrdinals_OnlyGeneratedOrdinal_Ordinal = 0x27c9581f00000000;
const $fidl.MethodType _kSwitchingOrdinals_OnlyGeneratedOrdinal_Type =
$fidl.MethodType(
request: null,
@@ -58,7 +58,7 @@
name: r"SwitchingOrdinals.OnlyGeneratedOrdinal",
);
// eventOrdinalFifteen: -> ()
-const int _kSwitchingOrdinals_EventOrdinalFifteen_Ordinal = 1467258273;
+const int _kSwitchingOrdinals_EventOrdinalFifteen_Ordinal = 0x577495a100000000;
const $fidl.MethodType _kSwitchingOrdinals_EventOrdinalFifteen_Type =
$fidl.MethodType(
request: null,
@@ -66,7 +66,8 @@
name: r"SwitchingOrdinals.EventOrdinalFifteen",
);
// eventOnlyGeneratedOrdinal: -> ()
-const int _kSwitchingOrdinals_EventOnlyGeneratedOrdinal_Ordinal = 2146190926;
+const int _kSwitchingOrdinals_EventOnlyGeneratedOrdinal_Ordinal =
+ 0x7fec464e00000000;
const $fidl.MethodType _kSwitchingOrdinals_EventOnlyGeneratedOrdinal_Type =
$fidl.MethodType(
request: null,
diff --git a/bin/fidlgen_dart/goldens/protocol_request.test.fidl.json_async.dart.golden b/bin/fidlgen_dart/goldens/protocol_request.test.fidl.json_async.dart.golden
index 05b7377..97a2ffd 100644
--- a/bin/fidlgen_dart/goldens/protocol_request.test.fidl.json_async.dart.golden
+++ b/bin/fidlgen_dart/goldens/protocol_request.test.fidl.json_async.dart.golden
@@ -119,7 +119,7 @@
}
// getChild: () -> ($fidl.InterfaceHandle<Child> c)
-const int _kParent_GetChild_Ordinal = 915586153;
+const int _kParent_GetChild_Ordinal = 0x3692bc6900000000;
const $fidl.MethodType _kParent_GetChild_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -129,7 +129,7 @@
name: r"Parent.GetChild",
);
// getChildRequest: () -> ($fidl.InterfaceRequest<Child> r)
-const int _kParent_GetChildRequest_Ordinal = 1068158078;
+const int _kParent_GetChildRequest_Ordinal = 0x3faacc7e00000000;
const $fidl.MethodType _kParent_GetChildRequest_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -139,7 +139,7 @@
name: r"Parent.GetChildRequest",
);
// takeChild: ($fidl.InterfaceHandle<Child> c)
-const int _kParent_TakeChild_Ordinal = 1275478777;
+const int _kParent_TakeChild_Ordinal = 0x4c0642f900000000;
const $fidl.MethodType _kParent_TakeChild_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<$fidl.InterfaceHandle<Child>>(
@@ -149,7 +149,7 @@
name: r"Parent.TakeChild",
);
// takeChildRequest: ($fidl.InterfaceRequest<Child> r)
-const int _kParent_TakeChildRequest_Ordinal = 1589872250;
+const int _kParent_TakeChildRequest_Ordinal = 0x5ec3867a00000000;
const $fidl.MethodType _kParent_TakeChildRequest_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<$fidl.InterfaceRequest<Child>>(
diff --git a/bin/fidlgen_dart/goldens/protocols.test.fidl.json_async.dart.golden b/bin/fidlgen_dart/goldens/protocols.test.fidl.json_async.dart.golden
index 664f751..1ef608f 100644
--- a/bin/fidlgen_dart/goldens/protocols.test.fidl.json_async.dart.golden
+++ b/bin/fidlgen_dart/goldens/protocols.test.fidl.json_async.dart.golden
@@ -343,7 +343,7 @@
// noRequestNoResponse: ()
const int _kWithAndWithoutRequestResponse_NoRequestNoResponse_Ordinal =
- 503576693;
+ 0x1e03f87500000000;
const $fidl.MethodType
_kWithAndWithoutRequestResponse_NoRequestNoResponse_Type = $fidl.MethodType(
request: null,
@@ -352,7 +352,7 @@
);
// noRequestEmptyResponse: () -> ()
const int _kWithAndWithoutRequestResponse_NoRequestEmptyResponse_Ordinal =
- 1308023765;
+ 0x4df6dbd500000000;
const $fidl.MethodType
_kWithAndWithoutRequestResponse_NoRequestEmptyResponse_Type =
$fidl.MethodType(
@@ -362,7 +362,7 @@
);
// noRequestWithResponse: () -> (String ret)
const int _kWithAndWithoutRequestResponse_NoRequestWithResponse_Ordinal =
- 107534328;
+ 0x668d7f800000000;
const $fidl.MethodType
_kWithAndWithoutRequestResponse_NoRequestWithResponse_Type =
$fidl.MethodType(
@@ -376,7 +376,7 @@
);
// withRequestNoResponse: (String arg)
const int _kWithAndWithoutRequestResponse_WithRequestNoResponse_Ordinal =
- 432149361;
+ 0x19c2137100000000;
const $fidl.MethodType
_kWithAndWithoutRequestResponse_WithRequestNoResponse_Type =
$fidl.MethodType(
@@ -390,7 +390,7 @@
);
// withRequestEmptyResponse: (String arg) -> ()
const int _kWithAndWithoutRequestResponse_WithRequestEmptyResponse_Ordinal =
- 1995585907;
+ 0x76f2397300000000;
const $fidl.MethodType
_kWithAndWithoutRequestResponse_WithRequestEmptyResponse_Type =
$fidl.MethodType(
@@ -404,7 +404,7 @@
);
// withRequestWithResponse: (String arg) -> (String ret)
const int _kWithAndWithoutRequestResponse_WithRequestWithResponse_Ordinal =
- 426977568;
+ 0x1973292000000000;
const $fidl.MethodType
_kWithAndWithoutRequestResponse_WithRequestWithResponse_Type =
$fidl.MethodType(
@@ -421,7 +421,8 @@
name: r"WithAndWithoutRequestResponse.WithRequestWithResponse",
);
// onEmptyResponse: -> ()
-const int _kWithAndWithoutRequestResponse_OnEmptyResponse_Ordinal = 1769985842;
+const int _kWithAndWithoutRequestResponse_OnEmptyResponse_Ordinal =
+ 0x697fd73200000000;
const $fidl.MethodType _kWithAndWithoutRequestResponse_OnEmptyResponse_Type =
$fidl.MethodType(
request: null,
@@ -429,7 +430,8 @@
name: r"WithAndWithoutRequestResponse.OnEmptyResponse",
);
// onWithResponse: -> (String ret)
-const int _kWithAndWithoutRequestResponse_OnWithResponse_Ordinal = 2051478023;
+const int _kWithAndWithoutRequestResponse_OnWithResponse_Ordinal =
+ 0x7a47120700000000;
const $fidl.MethodType _kWithAndWithoutRequestResponse_OnWithResponse_Type =
$fidl.MethodType(
request: null,
@@ -997,7 +999,7 @@
}
// errorAsPrimitive: () -> ()
-const int _kWithErrorSyntax_ErrorAsPrimitive_Ordinal = 2069369145;
+const int _kWithErrorSyntax_ErrorAsPrimitive_Ordinal = 0x7b58113900000000;
const $fidl.MethodType _kWithErrorSyntax_ErrorAsPrimitive_Type =
$fidl.MethodType(
request: null,
@@ -1008,7 +1010,7 @@
name: r"WithErrorSyntax.ErrorAsPrimitive",
);
// errorAsEnum: () -> ()
-const int _kWithErrorSyntax_ErrorAsEnum_Ordinal = 1284890143;
+const int _kWithErrorSyntax_ErrorAsEnum_Ordinal = 0x4c95de1f00000000;
const $fidl.MethodType _kWithErrorSyntax_ErrorAsEnum_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -1261,7 +1263,7 @@
}
// methodA: (int a, int b)
-const int _kOvernetInternalProtocol_MethodA_Ordinal = 1993818253;
+const int _kOvernetInternalProtocol_MethodA_Ordinal = 0x76d7408d00000000;
const $fidl.MethodType _kOvernetInternalProtocol_MethodA_Type =
$fidl.MethodType(
request: <$fidl.MemberType>[
@@ -1272,7 +1274,7 @@
name: r"OvernetInternalProtocol.MethodA",
);
// eventA: -> (int a, int b)
-const int _kOvernetInternalProtocol_EventA_Ordinal = 1746007436;
+const int _kOvernetInternalProtocol_EventA_Ordinal = 0x6811f58c00000000;
const $fidl.MethodType _kOvernetInternalProtocol_EventA_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -1282,7 +1284,7 @@
name: r"OvernetInternalProtocol.EventA",
);
// methodB: (int a, int b) -> (int result)
-const int _kOvernetInternalProtocol_MethodB_Ordinal = 952134976;
+const int _kOvernetInternalProtocol_MethodB_Ordinal = 0x38c06d4000000000;
const $fidl.MethodType _kOvernetInternalProtocol_MethodB_Type =
$fidl.MethodType(
request: <$fidl.MemberType>[
@@ -1295,7 +1297,7 @@
name: r"OvernetInternalProtocol.MethodB",
);
// mutateSocket: ($zx.Socket a) -> ($zx.Socket b)
-const int _kOvernetInternalProtocol_MutateSocket_Ordinal = 1691201382;
+const int _kOvernetInternalProtocol_MutateSocket_Ordinal = 0x64cdaf6600000000;
const $fidl.MethodType _kOvernetInternalProtocol_MutateSocket_Type =
$fidl.MethodType(
request: <$fidl.MemberType>[
@@ -1649,7 +1651,7 @@
}
// methodA: (int a, int b)
-const int _kSocketControlProtocol_MethodA_Ordinal = 1007842318;
+const int _kSocketControlProtocol_MethodA_Ordinal = 0x3c12740e00000000;
const $fidl.MethodType _kSocketControlProtocol_MethodA_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<int>(type: $fidl.Int64Type(), offset: 16),
@@ -1659,7 +1661,7 @@
name: r"SocketControlProtocol.MethodA",
);
// eventA: -> (int a, int b)
-const int _kSocketControlProtocol_EventA_Ordinal = 955483393;
+const int _kSocketControlProtocol_EventA_Ordinal = 0x38f3850100000000;
const $fidl.MethodType _kSocketControlProtocol_EventA_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -1669,7 +1671,7 @@
name: r"SocketControlProtocol.EventA",
);
// methodB: (int a, int b) -> (int result)
-const int _kSocketControlProtocol_MethodB_Ordinal = 677342235;
+const int _kSocketControlProtocol_MethodB_Ordinal = 0x285f6c1b00000000;
const $fidl.MethodType _kSocketControlProtocol_MethodB_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<int>(type: $fidl.Int64Type(), offset: 16),
@@ -1681,7 +1683,7 @@
name: r"SocketControlProtocol.MethodB",
);
// mutateSocket: ($zx.Socket a) -> ($zx.Socket b)
-const int _kSocketControlProtocol_MutateSocket_Ordinal = 255772213;
+const int _kSocketControlProtocol_MutateSocket_Ordinal = 0xf3ec63500000000;
const $fidl.MethodType _kSocketControlProtocol_MutateSocket_Type =
$fidl.MethodType(
request: <$fidl.MemberType>[
@@ -2035,7 +2037,7 @@
}
// methodA: (int a, int b)
-const int _kChannelProtocol_MethodA_Ordinal = 1432785874;
+const int _kChannelProtocol_MethodA_Ordinal = 0x556693d200000000;
const $fidl.MethodType _kChannelProtocol_MethodA_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<int>(type: $fidl.Int64Type(), offset: 16),
@@ -2045,7 +2047,7 @@
name: r"ChannelProtocol.MethodA",
);
// eventA: -> (int a, int b)
-const int _kChannelProtocol_EventA_Ordinal = 477676034;
+const int _kChannelProtocol_EventA_Ordinal = 0x1c78c20200000000;
const $fidl.MethodType _kChannelProtocol_EventA_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -2055,7 +2057,7 @@
name: r"ChannelProtocol.EventA",
);
// methodB: (int a, int b) -> (int result)
-const int _kChannelProtocol_MethodB_Ordinal = 180770075;
+const int _kChannelProtocol_MethodB_Ordinal = 0xac6551b00000000;
const $fidl.MethodType _kChannelProtocol_MethodB_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<int>(type: $fidl.Int64Type(), offset: 16),
@@ -2067,7 +2069,7 @@
name: r"ChannelProtocol.MethodB",
);
// mutateSocket: ($zx.Socket a) -> ($zx.Socket b)
-const int _kChannelProtocol_MutateSocket_Ordinal = 1258480262;
+const int _kChannelProtocol_MutateSocket_Ordinal = 0x4b02e28600000000;
const $fidl.MethodType _kChannelProtocol_MutateSocket_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<$zx.Socket>(
@@ -2415,7 +2417,7 @@
}
// methodA: (int a, int b)
-const int _kKitchenSink_MethodA_Ordinal = 450577456;
+const int _kKitchenSink_MethodA_Ordinal = 0x1adb443000000000;
const $fidl.MethodType _kKitchenSink_MethodA_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<int>(type: $fidl.Int64Type(), offset: 16),
@@ -2425,7 +2427,7 @@
name: r"KitchenSink.MethodA",
);
// eventA: -> (int a, int b)
-const int _kKitchenSink_EventA_Ordinal = 1795426833;
+const int _kKitchenSink_EventA_Ordinal = 0x6b040a1100000000;
const $fidl.MethodType _kKitchenSink_EventA_Type = $fidl.MethodType(
request: null,
response: <$fidl.MemberType>[
@@ -2435,7 +2437,7 @@
name: r"KitchenSink.EventA",
);
// methodB: (int a, int b) -> (int result)
-const int _kKitchenSink_MethodB_Ordinal = 1999489700;
+const int _kKitchenSink_MethodB_Ordinal = 0x772dcaa400000000;
const $fidl.MethodType _kKitchenSink_MethodB_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<int>(type: $fidl.Int64Type(), offset: 16),
@@ -2447,7 +2449,7 @@
name: r"KitchenSink.MethodB",
);
// mutateSocket: ($zx.Socket a) -> ($zx.Socket b)
-const int _kKitchenSink_MutateSocket_Ordinal = 115851270;
+const int _kKitchenSink_MutateSocket_Ordinal = 0x6e7c00600000000;
const $fidl.MethodType _kKitchenSink_MutateSocket_Type = $fidl.MethodType(
request: <$fidl.MemberType>[
$fidl.MemberType<$zx.Socket>(
diff --git a/public/dart/fidl/lib/src/codec.dart b/public/dart/fidl/lib/src/codec.dart
index 1d60e90..068533b 100644
--- a/public/dart/fidl/lib/src/codec.dart
+++ b/public/dart/fidl/lib/src/codec.dart
@@ -73,7 +73,7 @@
void encodeMessageHeader(int ordinal, int txid) {
alloc(kMessageHeaderSize);
- encodeUint32(ordinal, kMessageOrdinalOffset);
+ encodeUint64(ordinal, kMessageOrdinalOffset);
encodeUint32(txid, kMessageTxidOffset);
}
diff --git a/public/dart/fidl/lib/src/message.dart b/public/dart/fidl/lib/src/message.dart
index 3190ec0..2175717 100644
--- a/public/dart/fidl/lib/src/message.dart
+++ b/public/dart/fidl/lib/src/message.dart
@@ -10,7 +10,7 @@
const int kMessageHeaderSize = 16;
const int kMessageTxidOffset = 0;
-const int kMessageOrdinalOffset = 12;
+const int kMessageOrdinalOffset = 8;
class Message {
Message(this.data, this.handles, this.dataLength, this.handlesLength);
@@ -30,7 +30,7 @@
set txid(int value) =>
data.setUint32(kMessageTxidOffset, value, Endian.little);
- int get ordinal => data.getUint32(kMessageOrdinalOffset, Endian.little);
+ int get ordinal => data.getUint64(kMessageOrdinalOffset, Endian.little);
void hexDump() {
const int width = 16;
