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ast.go
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ast.go
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// Copyright 2020-2023 Buf Technologies, Inc.
//
// Licensed 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 parser
import "github.com/kralicky/protocompile/ast"
// the types below are accumulator types, just used in intermediate productions
// to accumulate slices that will get stored in AST nodes
// type compactOptionSlices struct {
// options []*ast.OptionNode
// commas []*ast.RuneNode
// }
// func toStringValueNode(strs ...*ast.StringLiteralNode) ast.StringValueNode {
// if len(strs) == 1 {
// return strs[0]
// }
// return ast.NewCompoundLiteralStringNode(strs...)
// }
// type nameSlices struct {
// // only names or idents will be set, never both
// names []*ast.StringValueNode
// idents []*ast.IdentNode
// commas []*ast.RuneNode
// }
// type rangeSlices struct {
// ranges []*ast.RangeNode
// commas []*ast.RuneNode
// }
// type valueSlices struct {
// vals []*ast.ValueNode
// commas []*ast.RuneNode
// }
type fieldRefParens struct {
open *ast.RuneNode
close *ast.RuneNode
}
// type identSlices struct {
// idents []*ast.IdentNode
// refs []*ast.FieldReferenceNode
// dots []*ast.RuneNode
// }
// type messageFieldList struct {
// field *ast.MessageFieldNode
// delimiter *ast.RuneNode
// next *messageFieldList
// }
// func (list *messageFieldList) toNodes() ([]*ast.MessageFieldNode, []*ast.RuneNode) {
// if list == nil {
// return nil, nil
// }
// l := 0
// for cur := list; cur != nil; cur = cur.next {
// l++
// }
// fields := make([]*ast.MessageFieldNode, l)
// delimiters := make([]*ast.RuneNode, l)
// for cur, i := list, 0; cur != nil; cur, i = cur.next, i+1 {
// fields[i] = cur.field
// if cur.delimiter != nil {
// delimiters[i] = cur.delimiter
// }
// }
// return fields, delimiters
// }