137 lines
5.7 KiB
C++
137 lines
5.7 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "java_lang_String.h"
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#include "nativehelper/jni_macros.h"
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#include "common_throws.h"
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#include "handle_scope-inl.h"
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#include "jni/jni_internal.h"
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#include "mirror/array.h"
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#include "mirror/object-inl.h"
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#include "mirror/string-alloc-inl.h"
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#include "mirror/string-inl.h"
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#include "native_util.h"
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#include "nativehelper/scoped_local_ref.h"
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#include "scoped_fast_native_object_access-inl.h"
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#include "scoped_thread_state_change-inl.h"
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#include "verify_object.h"
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namespace art {
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static jchar String_charAt(JNIEnv* env, jobject java_this, jint index) {
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ScopedFastNativeObjectAccess soa(env);
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return soa.Decode<mirror::String>(java_this)->CharAt(index);
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}
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static jint String_compareTo(JNIEnv* env, jobject java_this, jstring java_rhs) {
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ScopedFastNativeObjectAccess soa(env);
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if (UNLIKELY(java_rhs == nullptr)) {
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ThrowNullPointerException("rhs == null");
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return -1;
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} else {
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return soa.Decode<mirror::String>(java_this)->CompareTo(soa.Decode<mirror::String>(java_rhs));
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}
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}
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static jstring String_concat(JNIEnv* env, jobject java_this, jstring java_string_arg) {
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ScopedFastNativeObjectAccess soa(env);
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if (UNLIKELY(java_string_arg == nullptr)) {
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ThrowNullPointerException("string arg == null");
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return nullptr;
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}
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StackHandleScope<2> hs(soa.Self());
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Handle<mirror::String> string_this(hs.NewHandle(soa.Decode<mirror::String>(java_this)));
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Handle<mirror::String> string_arg(hs.NewHandle(soa.Decode<mirror::String>(java_string_arg)));
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int32_t length_this = string_this->GetLength();
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int32_t length_arg = string_arg->GetLength();
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if (length_arg > 0 && length_this > 0) {
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ObjPtr<mirror::String> result = mirror::String::DoConcat(soa.Self(), string_this, string_arg);
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return soa.AddLocalReference<jstring>(result);
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}
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jobject string_original = (length_this == 0) ? java_string_arg : java_this;
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return reinterpret_cast<jstring>(string_original);
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}
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static jstring String_fastSubstring(JNIEnv* env, jobject java_this, jint start, jint length) {
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ScopedFastNativeObjectAccess soa(env);
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StackHandleScope<1> hs(soa.Self());
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Handle<mirror::String> string_this(hs.NewHandle(soa.Decode<mirror::String>(java_this)));
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gc::AllocatorType allocator_type = Runtime::Current()->GetHeap()->GetCurrentAllocator();
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ObjPtr<mirror::String> result = mirror::String::AllocFromString(soa.Self(),
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length,
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string_this,
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start,
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allocator_type);
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return soa.AddLocalReference<jstring>(result);
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}
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static void String_getCharsNoCheck(JNIEnv* env, jobject java_this, jint start, jint end,
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jcharArray buffer, jint index) {
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ScopedFastNativeObjectAccess soa(env);
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StackHandleScope<1> hs(soa.Self());
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Handle<mirror::CharArray> char_array(hs.NewHandle(soa.Decode<mirror::CharArray>(buffer)));
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soa.Decode<mirror::String>(java_this)->GetChars(start, end, char_array, index);
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}
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static jstring String_intern(JNIEnv* env, jobject java_this) {
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ScopedFastNativeObjectAccess soa(env);
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ObjPtr<mirror::String> result = soa.Decode<mirror::String>(java_this)->Intern();
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return soa.AddLocalReference<jstring>(result);
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}
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static jstring String_doReplace(JNIEnv* env, jobject java_this, jchar old_c, jchar new_c) {
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ScopedFastNativeObjectAccess soa(env);
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StackHandleScope<1> hs(soa.Self());
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Handle<mirror::String> string = hs.NewHandle(soa.Decode<mirror::String>(java_this));
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ObjPtr<mirror::String> result = mirror::String::DoReplace(soa.Self(), string, old_c, new_c);
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return soa.AddLocalReference<jstring>(result);
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}
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static jcharArray String_toCharArray(JNIEnv* env, jobject java_this) {
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ScopedFastNativeObjectAccess soa(env);
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StackHandleScope<1u> hs(soa.Self());
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Handle<mirror::String> s = hs.NewHandle(soa.Decode<mirror::String>(java_this));
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return soa.AddLocalReference<jcharArray>(mirror::String::ToCharArray(s, soa.Self()));
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}
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static jstring String_doRepeat(JNIEnv* env, jobject java_this, jint count) {
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ScopedFastNativeObjectAccess soa(env);
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StackHandleScope<1> hs(soa.Self());
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Handle<mirror::String> string = hs.NewHandle(soa.Decode<mirror::String>(java_this));
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ObjPtr<mirror::String> result = mirror::String::DoRepeat(soa.Self(), string, count);
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return soa.AddLocalReference<jstring>(result);
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}
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static JNINativeMethod gMethods[] = {
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FAST_NATIVE_METHOD(String, charAt, "(I)C"),
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FAST_NATIVE_METHOD(String, compareTo, "(Ljava/lang/String;)I"),
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FAST_NATIVE_METHOD(String, concat, "(Ljava/lang/String;)Ljava/lang/String;"),
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FAST_NATIVE_METHOD(String, doRepeat, "(I)Ljava/lang/String;"),
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FAST_NATIVE_METHOD(String, doReplace, "(CC)Ljava/lang/String;"),
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FAST_NATIVE_METHOD(String, fastSubstring, "(II)Ljava/lang/String;"),
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FAST_NATIVE_METHOD(String, getCharsNoCheck, "(II[CI)V"),
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FAST_NATIVE_METHOD(String, intern, "()Ljava/lang/String;"),
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FAST_NATIVE_METHOD(String, toCharArray, "()[C"),
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};
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void register_java_lang_String(JNIEnv* env) {
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REGISTER_NATIVE_METHODS("java/lang/String");
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}
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} // namespace art
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