70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
// Copyright 2023-2025 Buf Technologies, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package protovalidate
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import (
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"slices"
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"buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go/buf/validate"
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"google.golang.org/protobuf/reflect/protoreflect"
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)
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// base is a common struct used by all field evaluators. It holds
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// some common information used across all field evaluators.
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type base struct {
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// Descriptor is the FieldDescriptor targeted by this evaluator, nor nil if
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// there is none.
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Descriptor protoreflect.FieldDescriptor
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// FieldPatht is the field path element that pertains to this evaluator, or
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// nil if there is none.
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FieldPathElement *validate.FieldPathElement
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// RulePrefix is a static prefix this evaluator should add to the rule path
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// of violations.
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RulePrefix *validate.FieldPath
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}
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func newBase(valEval *value) base {
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return base{
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Descriptor: valEval.Descriptor,
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FieldPathElement: fieldPathElement(valEval.Descriptor),
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RulePrefix: valEval.NestedRule,
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}
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}
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func (b *base) fieldPath() *validate.FieldPath {
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if b.FieldPathElement == nil {
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return nil
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}
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return validate.FieldPath_builder{
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Elements: []*validate.FieldPathElement{
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b.FieldPathElement,
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},
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}.Build()
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}
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func (b *base) rulePath(suffix *validate.FieldPath) *validate.FieldPath {
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return prefixRulePath(b.RulePrefix, suffix)
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}
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func prefixRulePath(prefix *validate.FieldPath, suffix *validate.FieldPath) *validate.FieldPath {
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if len(prefix.GetElements()) > 0 {
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return validate.FieldPath_builder{
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Elements: slices.Concat(prefix.GetElements(), suffix.GetElements()),
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}.Build()
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}
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return suffix
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}
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