1 /* 2 * Copyright (C) 2008 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 #include "common_throws.h" 18 #include "jni_internal.h" 19 #include "mirror/string.h" 20 #include "scoped_thread_state_change.h" 21 #include "ScopedLocalRef.h" 22 23 namespace art { 24 25 static jint String_compareTo(JNIEnv* env, jobject javaThis, jobject javaRhs) { 26 ScopedObjectAccess soa(env); 27 if (UNLIKELY(javaRhs == NULL)) { 28 ThrowNullPointerException(NULL, "rhs == null"); 29 return -1; 30 } else { 31 return soa.Decode<mirror::String*>(javaThis)->CompareTo(soa.Decode<mirror::String*>(javaRhs)); 32 } 33 } 34 35 static jint String_fastIndexOf(JNIEnv* env, jobject java_this, jint ch, jint start) { 36 ScopedObjectAccess soa(env); 37 // This method does not handle supplementary characters. They're dealt with in managed code. 38 DCHECK_LE(ch, 0xffff); 39 40 mirror::String* s = soa.Decode<mirror::String*>(java_this); 41 return s->FastIndexOf(ch, start); 42 } 43 44 static jstring String_intern(JNIEnv* env, jobject javaThis) { 45 ScopedObjectAccess soa(env); 46 mirror::String* s = soa.Decode<mirror::String*>(javaThis); 47 mirror::String* result = s->Intern(); 48 return soa.AddLocalReference<jstring>(result); 49 } 50 51 static JNINativeMethod gMethods[] = { 52 NATIVE_METHOD(String, compareTo, "(Ljava/lang/String;)I"), 53 NATIVE_METHOD(String, fastIndexOf, "(II)I"), 54 NATIVE_METHOD(String, intern, "()Ljava/lang/String;"), 55 }; 56 57 void register_java_lang_String(JNIEnv* env) { 58 REGISTER_NATIVE_METHODS("java/lang/String"); 59 } 60 61 } // namespace art 62
