1 /*
2 * Copyright (C) 2023 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package com.android.server.common.scripts
18
19 /**
20 * The purpose of this script is to aid in creating flicker representations of proto objects by
21 * transforming a property/variable from its proto definition format to its Kotlin format.
22 *
23 * Example: From a proto definition file, we have a property 'optional bool views_created = 1; ' We
24 * want the output to be 'val viewsCreated: Boolean,' This should work for multi-line input, where
25 * each line is one proto property.
26 *
27 * Usage: install kotlin on terminal and build into a jar file using the command `kotlinc
28 * proto_def_to_kotlin_vals.kt -include-runtime -d <outputFileName.jar>` then running the output jar
29 * file with `java -jar <outputFileName.jar> "<input string>"`
30 */
mapProtoTypeToKotlinTypenull31 fun mapProtoTypeToKotlinType(type: String): String? {
32 val mapOfKnownProtoToKotlinTypes =
33 mapOf("bool" to "Boolean", "int32" to "Int", "string" to "String")
34 if (mapOfKnownProtoToKotlinTypes.containsKey(type)) return mapOfKnownProtoToKotlinTypes[type]
35
36 if (type.contains("Proto")) return type.removeSuffix("Proto")
37
38 return type
39 }
40
41 val snakeRegex = "_[a-zA-Z]".toRegex()
42
snakeToLowerCamelCasenull43 fun String.snakeToLowerCamelCase(): String {
44 return snakeRegex.replace(this) { it.value.replace("_", "").uppercase() }
45 }
46
mainnull47 fun main(args: Array<String>) {
48 val splitByNewLine = mutableListOf<String>()
49 for (arg in args) {
50 splitByNewLine.addAll(arg.split("\n")) // to work with multi-line proto properties
51 }
52 for (s in splitByNewLine) {
53 val editedS = s.trim().removePrefix("optional ")
54 // bool views_created = 1;
55 val removedNumber = editedS.split("=")[0].trim() // bool views_created
56 val splitBySpace = removedNumber.split(" ") // [bool, views_created]
57 val kotlinType = mapProtoTypeToKotlinType(splitBySpace[0])
58 val kotlinName = splitBySpace[1].snakeToLowerCamelCase()
59 println("val $kotlinName: $kotlinType,")
60 }
61 }
62