1 files changed, 61 insertions, 0 deletions
diff --git a/runtime/native/java_lang_String.cc b/runtime/native/java_lang_String.cc
new file mode 100644
index 0000000000..3e9c3f36fa
--- /dev/null
+++ b/runtime/native/java_lang_String.cc
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2008 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 "common_throws.h"
+#include "jni_internal.h"
+#include "mirror/string.h"
+#include "scoped_thread_state_change.h"
+#include "ScopedLocalRef.h"
+
+namespace art {
+
+static jint String_compareTo(JNIEnv* env, jobject javaThis, jobject javaRhs) {
+  ScopedObjectAccess soa(env);
+  if (UNLIKELY(javaRhs == NULL)) {
+    ThrowNullPointerException(NULL, "rhs == null");
+    return -1;
+  } else {
+    return soa.Decode<mirror::String*>(javaThis)->CompareTo(soa.Decode<mirror::String*>(javaRhs));
+  }
+}
+
+static jint String_fastIndexOf(JNIEnv* env, jobject java_this, jint ch, jint start) {
+  ScopedObjectAccess soa(env);
+  // This method does not handle supplementary characters. They're dealt with in managed code.
+  DCHECK_LE(ch, 0xffff);
+
+  mirror::String* s = soa.Decode<mirror::String*>(java_this);
+  return s->FastIndexOf(ch, start);
+}
+
+static jstring String_intern(JNIEnv* env, jobject javaThis) {
+  ScopedObjectAccess soa(env);
+  mirror::String* s = soa.Decode<mirror::String*>(javaThis);
+  mirror::String* result = s->Intern();
+  return soa.AddLocalReference<jstring>(result);
+}
+
+static JNINativeMethod gMethods[] = {
+  NATIVE_METHOD(String, compareTo, "(Ljava/lang/String;)I"),
+  NATIVE_METHOD(String, fastIndexOf, "(II)I"),
+  NATIVE_METHOD(String, intern, "()Ljava/lang/String;"),
+};
+
+void register_java_lang_String(JNIEnv* env) {
+  REGISTER_NATIVE_METHODS("java/lang/String");
+}
+
+}  // namespace art