From b6eb43451910e4fdbaf81f7d34f84c32b06370a2 Mon Sep 17 00:00:00 2001
From: Alex Malone <amalone@secureworks.com>
Date: Thu, 27 Aug 2020 10:46:14 -0500
Subject: [PATCH] feat: add cppType and cppTypeWithPackage

Signed-off-by: Manfred Touron <94029+moul@users.noreply.github.com>
---
 helpers/helpers.go | 53 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/helpers/helpers.go b/helpers/helpers.go
index b1c6d1c..cdfc975 100644
--- a/helpers/helpers.go
+++ b/helpers/helpers.go
@@ -163,6 +163,8 @@ var ProtoHelpersFuncMap = template.FuncMap{
 	"getStore":                     getStore,
 	"goPkg":                        goPkg,
 	"goPkgLastElement":             goPkgLastElement,
+	"cppType":                      cppType,
+	"cppTypeWithPackage":           cppTypeWithPackage,
 }
 
 var pathMap map[interface{}]*descriptor.SourceCodeInfo_Location
@@ -909,6 +911,57 @@ func haskellType(pkg string, f *descriptor.FieldDescriptorProto) string {
 	}
 }
 
+// Warning does not handle message embedded like goTypeWithGoPackage does.
+func cppTypeWithPackage(f *descriptor.FieldDescriptorProto) string {
+	pkg := ""
+	if *f.Type == descriptor.FieldDescriptorProto_TYPE_MESSAGE || *f.Type == descriptor.FieldDescriptorProto_TYPE_ENUM {
+		if isTimestampPackage(*f.TypeName) {
+			pkg = "timestamp"
+		} else {
+			pkg = getPackageTypeName(*f.TypeName)
+		}
+	}
+	return cppType(pkg, f)
+}
+
+func cppType(pkg string, f *descriptor.FieldDescriptorProto) string {
+	isRepeat := *f.Label == descriptor.FieldDescriptorProto_LABEL_REPEATED
+	typeName := "???"
+	switch *f.Type {
+	case descriptor.FieldDescriptorProto_TYPE_DOUBLE:
+		typeName = "double"
+	case descriptor.FieldDescriptorProto_TYPE_FLOAT:
+		typeName = "float"
+	case descriptor.FieldDescriptorProto_TYPE_INT64:
+		typeName = "int64_t"
+	case descriptor.FieldDescriptorProto_TYPE_UINT64:
+		typeName = "uint64_t"
+	case descriptor.FieldDescriptorProto_TYPE_INT32:
+		typeName = "int32_t"
+	case descriptor.FieldDescriptorProto_TYPE_UINT32:
+		typeName = "uint32_t"
+	case descriptor.FieldDescriptorProto_TYPE_BOOL:
+		typeName = "bool"
+	case descriptor.FieldDescriptorProto_TYPE_STRING:
+		typeName = "std::string"
+	case descriptor.FieldDescriptorProto_TYPE_MESSAGE:
+		if pkg != "" {
+			pkg = pkg + "."
+		}
+		typeName = fmt.Sprintf("%s%s", pkg, shortType(*f.TypeName))
+	case descriptor.FieldDescriptorProto_TYPE_BYTES:
+		typeName = "std::vector<uint8_t>"
+	case descriptor.FieldDescriptorProto_TYPE_ENUM:
+		typeName = fmt.Sprintf("%s%s", pkg, shortType(*f.TypeName))
+	default:
+		break
+	}
+	if isRepeat {
+		return "std::vector<" + typeName + ">"
+	}
+	return typeName
+}
+
 func goTypeWithEmbedded(pkg string, f *descriptor.FieldDescriptorProto, p *descriptor.FileDescriptorProto) string {
 	if pkg != "" {
 		pkg = pkg + "."