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-inl.h" 20 #include "scoped_fast_native_object_access.h" 21 #include "scoped_thread_state_change.h" 22 #include "ScopedLocalRef.h" 23 #include "verify_object-inl.h" 24 25 namespace art { 26 27 static jint String_compareTo(JNIEnv* env, jobject javaThis, jobject javaRhs) { 28 ScopedFastNativeObjectAccess soa(env); 29 if (UNLIKELY(javaRhs == NULL)) { 30 ThrowNullPointerException(NULL, "rhs == null"); 31 return -1; 32 } else { 33 return soa.Decode<mirror::String*>(javaThis)->CompareTo(soa.Decode<mirror::String*>(javaRhs)); 34 } 35 } 36 37 static jint String_fastIndexOf(JNIEnv* env, jobject java_this, jint ch, jint start) { 38 ScopedFastNativeObjectAccess soa(env); 39 // This method does not handle supplementary characters. They're dealt with in managed code. 40 DCHECK_LE(ch, 0xffff); 41 42 mirror::String* s = soa.Decode<mirror::String*>(java_this); 43 return s->FastIndexOf(ch, start); 44 } 45 46 static jstring String_intern(JNIEnv* env, jobject javaThis) { 47 ScopedFastNativeObjectAccess soa(env); 48 mirror::String* s = soa.Decode<mirror::String*>(javaThis); 49 mirror::String* result = s->Intern(); 50 return soa.AddLocalReference<jstring>(result); 51 } 52 53 static JNINativeMethod gMethods[] = { 54 NATIVE_METHOD(String, compareTo, "!(Ljava/lang/String;)I"), 55 NATIVE_METHOD(String, fastIndexOf, "!(II)I"), 56 NATIVE_METHOD(String, intern, "!()Ljava/lang/String;"), 57 }; 58 59 void register_java_lang_String(JNIEnv* env) { 60 REGISTER_NATIVE_METHODS("java/lang/String"); 61 } 62 63 } // namespace art 64
