hashing repeated fields

Makefile

@@ -46,6 +46,7 @@ GO_IMPORT:=$(subst $(space),,$(GO_IMPORT_SPACES))
 
 .PHONY: generated-code
 generated-code:
+	rm -rf tests/api/*.go
 	PATH=$(DEPSGOBIN):$$PATH $(DEPSGOBIN)/protoc -I=. -I=./external --go_out="${EXT_IMPORT}:." extproto/ext.proto
 	PATH=$(DEPSGOBIN):$$PATH cp -r ${PACKAGE}/extproto/* extproto
 	PATH=$(DEPSGOBIN):$$PATH $(DEPSGOBIN)/protoc -I=. -I=./extproto -I=./external --go_out="." --ext_out="." tests/api/hello.proto

templates/hash/file.go

@@ -11,6 +11,7 @@ import (
 	"fmt"
 	"hash"
 	"hash/fnv"
+	"strconv"
 
 	"github.com/solo-io/protoc-gen-ext/pkg/hasher/hashstructure"
 	safe_hasher "github.com/solo-io/protoc-gen-ext/pkg/hasher"

templates/hash/messages.go

@@ -69,7 +69,13 @@ const mapTpl = `
 `
 
 const repeatedTpl = `
-		for _, v := range {{ .FieldAccessor }} {
+		if _, err = hasher.Write([]byte("{{ .FieldName }}")); err != nil {
+			return 0, err
+		}
+		for i, v := range {{ .FieldAccessor }} {
+			if _, err = hasher.Write([]byte(strconv.Itoa(i))); err != nil {
+				return 0, err
+			}
 			{{ .InnerTemplates.Value }}
 		}
 `