/
types.go
88 lines (79 loc) · 3.16 KB
/
types.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package lib
import (
"reflect"
"time"
structpb "github.com/golang/protobuf/ptypes/struct"
"github.com/google/cel-go/cel"
"github.com/google/cel-go/common/types"
"github.com/google/cel-go/common/types/ref"
"google.golang.org/protobuf/types/known/anypb"
)
// OptionalTypesVersion is the version of the optional types library
// used by mito.
const OptionalTypesVersion = 1
// Types used in overloads.
var (
typeV = cel.TypeParamType("V")
typeK = cel.TypeParamType("K")
mapKV = cel.MapType(typeK, typeV)
mapStringDyn = cel.MapType(cel.StringType, cel.DynType)
listV = cel.ListType(typeV)
listK = cel.ListType(typeK)
listDyn = cel.ListType(cel.DynType)
listString = cel.ListType(cel.StringType)
)
// Types used for conversion to native.
var (
// encodableTypes is the preferred type correspondence between CEL types
// and Go types. This mapping must be kept in agreement with the types in
// cel-go/common/types.
encodableTypes = map[ref.Type]reflect.Type{
types.BoolType: reflectBoolType,
types.BytesType: reflectByteSliceType,
types.DoubleType: reflect.TypeOf(float64(0)),
types.DurationType: reflect.TypeOf(time.Duration(0)),
types.IntType: reflectInt64Type,
types.ListType: reflect.TypeOf([]interface{}(nil)),
types.MapType: reflectMapStringAnyType,
types.StringType: reflectStringType,
types.TimestampType: reflect.TypeOf(time.Time{}),
types.UintType: reflect.TypeOf(uint64(0)),
types.UnknownType: reflect.TypeOf((*types.Unknown)(nil)),
}
// Linear search for proto.Message mappings and others.
protobufTypes = []reflect.Type{
structpbValueType,
reflect.TypeOf((*structpb.ListValue)(nil)),
reflect.TypeOf((*structpb.Struct)(nil)),
// Catch all.
reflect.TypeOf((*anypb.Any)(nil)),
}
)
// Types used for reflect conversion.
var (
reflectBoolType = reflect.TypeOf(true)
reflectByteSliceType = reflect.TypeOf([]byte(nil))
reflectIntType = reflect.TypeOf(0)
reflectInt64Type = reflect.TypeOf(int64(0))
reflectMapStringAnyType = reflect.TypeOf(map[string]interface{}(nil))
reflectMapStringStringSliceType = reflect.TypeOf(map[string][]string(nil))
reflectStringType = reflect.TypeOf("")
reflectStringSliceType = reflect.TypeOf([]string(nil))
structpbValueType = reflect.TypeOf((*structpb.Value)(nil))
)