list_ext.kt revision 59229481aec5a284d322a2ca80dff836485feb0c 
1/*
2 * Copyright (C) 2014 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
17package android.databinding.tool.ext
18
19import android.databinding.tool.ext.toCamelCase
20import android.databinding.tool.ext.toCamelCaseAsVar
21
22public fun List<String>.joinToCamelCase(): String = when(size) {
23    0 -> throw IllegalArgumentException("invalid section size, cannot be zero")
24    1 -> this.get(0).toCamelCase()
25    else -> this.map {it.toCamelCase()}.joinToString("")
26}
27
28public fun List<String>.joinToCamelCaseAsVar(): String = when(size) {
29    0 -> throw IllegalArgumentException("invalid section size, cannot be zero")
30    1 -> this.get(0).toCamelCaseAsVar()
31    else -> get(0).toCamelCaseAsVar() + drop(1).joinToCamelCase()
32}
33
34public fun Array<String>.joinToCamelCase(): String = when(size()) {
35    0 -> throw IllegalArgumentException("invalid section size, cannot be zero")
36    1 -> this.get(0).toCamelCase()
37    else -> this.map {it.toCamelCase()}.joinToString("")
38}
39
40public fun Array<String>.joinToCamelCaseAsVar(): String = when(size()) {
41    0 -> throw IllegalArgumentException("invalid section size, cannot be zero")
42    1 -> this.get(0).toCamelCaseAsVar()
43    else -> get(0).toCamelCaseAsVar() + drop(1).joinToCamelCase()
44}