| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| #include "com_android_tools_aapt2_Aapt2.h" |
| |
| #include <algorithm> |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| #include "android-base/logging.h" |
| #include "nativehelper/ScopedUtfChars.h" |
| |
| #include "util/Util.h" |
| |
| namespace aapt { |
| extern int Compile(const std::vector<StringPiece> &args); |
| extern int Link(const std::vector<StringPiece> &args); |
| } |
| |
| /* |
| * Converts a java List<String> into C++ vector<ScopedUtfChars>. |
| */ |
| static std::vector<ScopedUtfChars> list_to_utfchars(JNIEnv *env, jobject obj) { |
| std::vector<ScopedUtfChars> converted; |
| |
| // Call size() method on the list to know how many elements there are. |
| jclass list_cls = env->GetObjectClass(obj); |
| jmethodID size_method_id = env->GetMethodID(list_cls, "size", "()I"); |
| CHECK(size_method_id != 0); |
| jint size = env->CallIntMethod(obj, size_method_id); |
| CHECK(size >= 0); |
| |
| // Now, iterate all strings in the list |
| // (note: generic erasure means get() return an Object) |
| jmethodID get_method_id = |
| env->GetMethodID(list_cls, "get", "()Ljava/lang/Object;"); |
| for (jint i = 0; i < size; i++) { |
| // Call get(i) to get the string in the ith position. |
| jobject string_obj_uncast = env->CallObjectMethod(obj, get_method_id, i); |
| CHECK(string_obj_uncast != nullptr); |
| jstring string_obj = static_cast<jstring>(string_obj_uncast); |
| converted.push_back(ScopedUtfChars(env, string_obj)); |
| } |
| |
| return converted; |
| } |
| |
| /* |
| * Extracts all StringPiece from the ScopedUtfChars instances. |
| * |
| * The returned pieces can only be used while the original ones have not been |
| * destroyed. |
| */ |
| static std::vector<aapt::StringPiece> extract_pieces( |
| const std::vector<ScopedUtfChars> &strings) { |
| std::vector<aapt::StringPiece> pieces; |
| |
| std::for_each( |
| strings.begin(), strings.end(), |
| [&pieces](const ScopedUtfChars &p) { pieces.push_back(p.c_str()); }); |
| |
| return pieces; |
| } |
| |
| JNIEXPORT void JNICALL Java_com_android_tools_aapt2_Aapt2_nativeCompile( |
| JNIEnv *env, jclass aapt_obj, jobject arguments_obj) { |
| std::vector<ScopedUtfChars> compile_args_jni = |
| list_to_utfchars(env, arguments_obj); |
| std::vector<aapt::StringPiece> compile_args = |
| extract_pieces(compile_args_jni); |
| aapt::Compile(compile_args); |
| } |
| |
| JNIEXPORT void JNICALL Java_com_android_tools_aapt2_Aapt2_nativeLink( |
| JNIEnv *env, jclass aapt_obj, jobject arguments_obj) { |
| std::vector<ScopedUtfChars> link_args_jni = |
| list_to_utfchars(env, arguments_obj); |
| std::vector<aapt::StringPiece> link_args = extract_pieces(link_args_jni); |
| aapt::Link(link_args); |
| } |