Merge pull request #44 from TristonianJones/cpt-dep-upgrade

Upgrade to CEL v0.7.0 and Protobuf v2 API

go.mod

@@ -3,11 +3,10 @@ module github.com/google/cel-policy-templates-go
 go 1.12
 
 require (
-	github.com/golang/protobuf v1.4.2
-	github.com/google/cel-go v0.5.0
+	github.com/google/cel-go v0.7.0
 	github.com/kr/pretty v0.1.0 // indirect
-	golang.org/x/sys v0.0.0-20201029080932-201ba4db2418 // indirect
-	google.golang.org/genproto v0.0.0-20200515170657-fc4c6c6a6587
+	google.golang.org/genproto v0.0.0-20210113195801-ae06605f4595
+	google.golang.org/protobuf v1.25.0
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	gopkg.in/yaml.v3 v3.0.0-20200506231410-2ff61e1afc86
 )

go.sum

@@ -8,8 +8,13 @@ github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/client9/misspell v0.3.4 h1:ta993UF76GwbvJcIo3Y68y/M3WxlpEHPWIGDkJYwzJI=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473 h1:4cmBvAEBNJaGARUEs3/suWRyfyBfhf7I60WBZq+bv2w=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
+github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0 h1:EQciDnbrYxy13PgWoY8AqoxGiPrpgBZ1R8UNe3ddc+A=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
@@ -19,9 +24,6 @@ github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfb
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
-github.com/golang/protobuf v1.3.4 h1:87PNWwrRvUSnqS4dlcBU/ftvOIBep4sYuBLlh6rX2wk=
-github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
@@ -30,23 +32,33 @@ github.com/golang/protobuf v1.4.0 h1:oOuy+ugB+P/kBdUnG5QaMXSIyJ1q38wWSojYCb3z5VQ
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.1 h1:ZFgWrT+bLgsYPirOnRfKLYJLvssAegOj/hgyMFdJZe0=
 github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QDs8UjoX8=
-github.com/golang/protobuf v1.4.2 h1:+Z5KGCizgyZCbGh1KZqA0fcLLkwbsjIzS4aV2v7wJX0=
-github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/google/cel-go v0.5.0 h1:mKsiw/KmT+VlDZnYFd2SE5ULrbe8RPlb0rHBem2Bv7I=
-github.com/google/cel-go v0.5.0/go.mod h1:9SvtVVTtZV4DTB1/RuAD1D2HhuqEIdmZEE/r/lrFyKE=
-github.com/google/cel-spec v0.4.0/go.mod h1:2pBM5cU4UKjbPDXBgwWkiwBsVgnxknuEJ7C5TDWwORQ=
+github.com/golang/protobuf v1.4.3 h1:JjCZWpVbqXDqFVmTfYWEVTMIYrL/NPdPSCHPJ0T/raM=
+github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
+github.com/google/cel-go v0.7.0 h1:J0J8RSCJW+SdB53YPwPSm2m1Kfz1tqGXdwMuIAVRU9o=
+github.com/google/cel-go v0.7.0/go.mod h1:4EtyFAHT5xNr0Msu0MJjyGxPUgdr9DlcaPyzLt/kkt8=
+github.com/google/cel-spec v0.5.0/go.mod h1:Nwjgxy5CbjlPrtCWjeDjUyKMl8w41YBYGjsyDdqk0xA=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.0 h1:/QaMHBdZ26BB3SSst0Iwl10Epc+xhTquomWX0oZEB6w=
+github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 h1:gQz4mCbXsO+nc9n1hCxHcGA3Zx3Eo+UHZoInFGUIXNM=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
+github.com/stoewer/go-strcase v1.2.0 h1:Z2iHWqGXH00XYgqDmNgQbIBxf3wrNq0F3feEy0ainaU=
+github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
+github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4 h1:c2HOrn5iMezYjSlGPncknSEr/8x5LELb/ilJbXi9DEA=
@@ -75,8 +87,6 @@ golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527 h1:uYVVQ9WP/Ds2ROhcaGPeIdVq0RIXVLwsHlnvJ+cT1So=
 golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201029080932-201ba4db2418 h1:HlFl4V6pEMziuLXyRkm5BIYq1y1GAbb02pRlWvI54OM=
-golang.org/x/sys v0.0.0-20201029080932-201ba4db2418/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -95,17 +105,18 @@ google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO50
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20200305110556-506484158171 h1:xes2Q2k+d/+YNXVw0FpZkIDJiaux4OVrRKXRAzH6A0U=
-google.golang.org/genproto v0.0.0-20200305110556-506484158171/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
-google.golang.org/genproto v0.0.0-20200515170657-fc4c6c6a6587 h1:1Ym+vvUpq1ZHvxzn34gENJX8U4aKO+vhy2P/2+Xl6qQ=
-google.golang.org/genproto v0.0.0-20200515170657-fc4c6c6a6587/go.mod h1:YsZOwe1myG/8QRHRsmBRE1LrgQY60beZKjly0O1fX9U=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20201102152239-715cce707fb0 h1:d0rYPqjQfVuFe+tZgv4PHt2hNxK79MRXX7PaD/A5ynA=
+google.golang.org/genproto v0.0.0-20201102152239-715cce707fb0/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
+google.golang.org/genproto v0.0.0-20210113195801-ae06605f4595 h1:x7nk+/4+SvuTDI4wnzQUlhvi+DTpyfncXBo3QWTFs7U=
+google.golang.org/genproto v0.0.0-20210113195801-ae06605f4595/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/grpc v1.19.0 h1:cfg4PD8YEdSFnm7qLV4++93WcmhH2nIUhMjhdCvl3j8=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0 h1:rRYRFMVgRv6E0D70Skyfsr28tDXIuuPZyWGMPdMcnXg=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.27.1 h1:zvIju4sqAGvwKspUQOhwnpcqSbzi7/H6QomNNjTL4sk=
-google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -116,10 +127,16 @@ google.golang.org/protobuf v1.22.0 h1:cJv5/xdbk1NnMPR1VP9+HU6gupuG9MLBoH1r6RHZ2M
 google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
+google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200506231410-2ff61e1afc86 h1:OfFoIUYv/me30yv7XlMy4F9RJw8DEm8WQ6QG1Ph4bH0=
 gopkg.in/yaml.v3 v3.0.0-20200506231410-2ff61e1afc86/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099 h1:XJP7lxbSxWLOMNdBE4B/STaqVy6L73o0knwj2vIlxnw=

policy/compiler/compiler.go

@@ -36,7 +36,7 @@ import (
 	"github.com/google/cel-go/common"
 	"github.com/google/cel-go/common/types"
 
-	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 
 	exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
 )

policy/engine_test.go

@@ -18,6 +18,7 @@ import (
 	"fmt"
 	"reflect"
 	"testing"
+	"time"
 
 	"github.com/google/cel-policy-templates-go/policy/model"
 	"github.com/google/cel-policy-templates-go/policy/runtime"
@@ -26,9 +27,6 @@ import (
 	"github.com/google/cel-go/cel"
 	"github.com/google/cel-go/common/types"
 	"github.com/google/cel-go/interpreter"
-
-	dpb "github.com/golang/protobuf/ptypes/duration"
-	tpb "github.com/golang/protobuf/ptypes/timestamp"
 )
 
 type metadata struct {
@@ -138,7 +136,7 @@ var (
 					"gone": {1999},
 					"next": {2038},
 				},
-				&dpb.Duration{Seconds: 600},
+				time.Duration(600) * time.Second,
 			},
 			opts: []EngineOption{EvaluatorDecisionLimit(4)},
 		},
@@ -263,7 +261,7 @@ var (
 			policy: "timed_contract",
 			input: map[string]interface{}{
 				"resource.name": "/company/warneranimstudios/hello",
-				"request.time":  &tpb.Timestamp{Seconds: 1546416000},
+				"request.time":  time.Unix(1546416000, 0).UTC(),
 			},
 			outputs: []interface{}{},
 		},
@@ -272,7 +270,7 @@ var (
 			policy: "timed_contract",
 			input: map[string]interface{}{
 				"resource.name": "/company/othercust/some/data",
-				"request.time":  &tpb.Timestamp{Seconds: 1546416000},
+				"request.time":  time.Unix(1546416000, 0).UTC(),
 			},
 			outputs: []interface{}{},
 		},
@@ -281,7 +279,7 @@ var (
 			policy: "timed_contract",
 			input: map[string]interface{}{
 				"resource.name": "/company/warneranimstudios/goodbye",
-				"request.time":  &tpb.Timestamp{Seconds: 1646416000},
+				"request.time":  time.Unix(1646416000, 0).UTC(),
 			},
 			outputs: []interface{}{true},
 		},

policy/model/schemas_test.go

@@ -18,9 +18,10 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/golang/protobuf/proto"
 	"github.com/google/cel-go/checker/decls"
 	"github.com/google/cel-go/common/types"
+
+	"google.golang.org/protobuf/proto"
 )
 
 func TestSchemaDeclType(t *testing.T) {

policy/model/types.go

@@ -16,16 +16,16 @@ package model
 
 import (
 	"fmt"
+	"time"
 
 	"github.com/google/cel-go/cel"
 	"github.com/google/cel-go/checker/decls"
 	"github.com/google/cel-go/common/types"
 	"github.com/google/cel-go/common/types/ref"
 	"github.com/google/cel-go/common/types/traits"
 
-	"github.com/golang/protobuf/proto"
-	dpb "github.com/golang/protobuf/ptypes/duration"
-	tpb "github.com/golang/protobuf/ptypes/timestamp"
+	"google.golang.org/protobuf/proto"
+
 	exprpb "google.golang.org/genproto/googleapis/api/expr/v1alpha1"
 )
 
@@ -531,7 +531,7 @@ var (
 
 	// DurationType is equivalent to the CEL 'duration' type.
 	DurationType = newSimpleType("duration", decls.Duration,
-		types.Duration{Duration: &dpb.Duration{}})
+		types.Duration{Duration: time.Duration(0)})
 
 	// DynType is the equivalent of the CEL 'dyn' concept which indicates that the type will be
 	// determined at runtime rather than compile time.
@@ -552,8 +552,7 @@ var (
 	PlainTextType = newSimpleType("string_lit", decls.String, types.String(""))
 
 	// TimestampType corresponds to the well-known protobuf.Timestamp type supported within CEL.
-	TimestampType = newSimpleType("timestamp", decls.Timestamp,
-		types.Timestamp{Timestamp: &tpb.Timestamp{}})
+	TimestampType = newSimpleType("timestamp", decls.Timestamp, types.Timestamp{Time: time.Time{}})
 
 	// UintType is equivalent to the CEL 'uint' type.
 	UintType = newSimpleType("uint", decls.Uint, types.Uint(0))

policy/model/value.go

@@ -19,13 +19,9 @@ import (
 	"reflect"
 	"time"
 
-	"github.com/golang/protobuf/ptypes"
 	"github.com/google/cel-go/common/types"
 	"github.com/google/cel-go/common/types/ref"
 	"github.com/google/cel-go/common/types/traits"
-
-	dpb "github.com/golang/protobuf/ptypes/duration"
-	tpb "github.com/golang/protobuf/ptypes/timestamp"
 )
 
 // EncodeStyle is a hint for string encoding of parsed values.
@@ -141,19 +137,11 @@ func (dv *DynValue) Equal(other ref.Val) ref.Val {
 	case *MultilineStringValue:
 		return celBool(v.Value == other.Value().(string))
 	case time.Duration:
-		otherDuration := other.Value().(*dpb.Duration)
-		otherDur, err := ptypes.Duration(otherDuration)
-		if err != nil {
-			return types.NewErr(err.Error())
-		}
-		return celBool(v == otherDur)
+		otherDuration := other.Value().(time.Duration)
+		return celBool(v == otherDuration)
 	case time.Time:
-		otherTimestamp := other.Value().(*tpb.Timestamp)
-		otherTime, err := ptypes.Timestamp(otherTimestamp)
-		if err != nil {
-			return types.NewErr(err.Error())
-		}
-		return celBool(v.Equal(otherTime))
+		otherTimestamp := other.Value().(time.Time)
+		return celBool(v.Equal(otherTimestamp))
 	default:
 		return celBool(reflect.DeepEqual(v, other.Value()))
 	}
@@ -194,14 +182,9 @@ func exprValue(dv *DynValue) ref.Val {
 	case *MultilineStringValue:
 		return types.String(v.Value)
 	case time.Duration:
-		dbuf := ptypes.DurationProto(v)
-		return types.Duration{Duration: dbuf}
+		return types.Duration{Duration: v}
 	case time.Time:
-		tbuf, err := ptypes.TimestampProto(v)
-		if err != nil {
-			return types.NewErr(err.Error())
-		}
-		return types.Timestamp{Timestamp: tbuf}
+		return types.Timestamp{Time: v}
 	default:
 		return types.NewErr("no such expr type: %T", v)
 	}
@@ -592,7 +575,7 @@ func (lv *ListValue) Add(other ref.Val) ref.Val {
 	for i := 0; i < szLeft; i++ {
 		combo[i+szRight] = oArr.Get(types.Int(i))
 	}
-	return types.NewValueList(types.DefaultTypeAdapter, combo)
+	return types.DefaultTypeAdapter.NativeToValue(combo)
 }
 
 // Append adds another entry into the ListValue.

policy/runtime/runtime.go

@@ -171,10 +171,10 @@ func (t *Template) Validate(src *model.Source, inst *model.Instance) *cel.Issues
 			}
 			f, found := violationMap["field"]
 			if found {
-				field, ok := f.(types.String)
+				field, ok := f.(string)
 				if ok {
 					rule := ruleMap[rules[i]]
-					fieldID := rule.GetFieldID(string(field))
+					fieldID := rule.GetFieldID(field)
 					fieldLoc, found := inst.Meta.LocationByID(fieldID)
 					if found {
 						loc = fieldLoc

test/testdata/validator_with_field/instance.compile.err

@@ -4,7 +4,7 @@ ERROR: ../../test/testdata/validator_with_field/instance.yaml:20:13: album name
 ERROR: ../../test/testdata/validator_with_field/instance.yaml:22:7: too many genres.
  |       - "Alternative rock"
  | ......^
-ERROR: ../../test/testdata/validator_with_field/instance.yaml:27:20: only albums released before 2000 are supported. details: seconds:863395200
+ERROR: ../../test/testdata/validator_with_field/instance.yaml:27:20: only albums released before 2000 are supported. details: 1997-05-12 00:00:00 +0000 UTC
  |     release_date: "1997-05-12T00:00:00Z"
  | ...................^
 ERROR: ../../test/testdata/validator_with_field/instance.yaml:30:13: artist bio must not be empty. details:
@@ -13,7 +13,7 @@ ERROR: ../../test/testdata/validator_with_field/instance.yaml:30:13: artist bio
 ERROR: ../../test/testdata/validator_with_field/instance.yaml:32:24: album must not contain forbidden song
  |       forbidden_song: "lyrics"
  | .......................^
-ERROR: ../../test/testdata/validator_with_field/instance.yaml:33:5: only albums released before 2000 are supported. details:
+ERROR: ../../test/testdata/validator_with_field/instance.yaml:33:5: only albums released before 2000 are supported. details: 0001-01-01 00:00:00 +0000 UTC
  |   - album: "I might be wrong"
  | ....^
 ERROR: ../../test/testdata/validator_with_field/instance.yaml:33:5: artist bio must not be empty. details: