| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * 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 com.android.build.gradle.internal.utils |
| |
| import com.google.common.collect.ImmutableList |
| import com.google.common.collect.ImmutableMap |
| import com.google.common.collect.ImmutableSet |
| |
| /** |
| * Kotlin Extensions for Guava types. |
| */ |
| |
| fun <T> Iterable<T>.toImmutableList(): ImmutableList<T> { |
| return ImmutableList.copyOf(this) |
| } |
| |
| fun <T> Sequence<T>.toImmutableList(): ImmutableList<T> { |
| return ImmutableList.copyOf(this.iterator()) |
| } |
| |
| fun <T> Iterable<T>.toImmutableSet(): ImmutableSet<T> { |
| return ImmutableSet.copyOf(this) |
| } |
| |
| fun <K, V> Map<K, V>.toImmutableMap(): ImmutableMap<K, V> { |
| return ImmutableMap.copyOf(this) |
| } |
| |
| /** |
| * Build an immutable map with a custom transform on the value instances |
| */ |
| inline fun <K, V1, V2> Map<K, V1>.toImmutableMap(action: (V1) -> V2) |
| : ImmutableMap<K, V2> { |
| val builder: ImmutableMap.Builder<K, V2> = ImmutableMap.builder() |
| |
| for (entry in entries) { |
| val v2 = action(entry.value) |
| builder.put(entry.key, v2) |
| } |
| |
| return builder.build() |
| } |
| |
| inline fun <K, V> immutableMapBuilder(block: ImmutableMap.Builder<K,V>.() -> Unit) |
| : ImmutableMap<K, V> { |
| val builder: ImmutableMap.Builder<K, V> = ImmutableMap.builder() |
| |
| block(builder) |
| |
| return builder.build() |
| } |