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authorBrian Carlstrom <bdc@google.com>2013-07-12 13:46:57 -0700
committerBrian Carlstrom <bdc@google.com>2013-07-12 17:49:01 -0700
commit7940e44f4517de5e2634a7e07d58d0fb26160513 (patch)
treeac90242d96229a6942f6e24ab137bc1f8f2e0025 /runtime/native/java_lang_reflect_Field.cc
parent5cd9e3b122f276f610980cbaf0d2ad6ed4cd9088 (diff)
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Create separate Android.mk for main build targets
The runtime, compiler, dex2oat, and oatdump now are in seperate trees to prevent dependency creep. They can now be individually built without rebuilding the rest of the art projects. dalvikvm and jdwpspy were already this way. Builds in the art directory should behave as before, building everything including tests. Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81
Diffstat (limited to 'runtime/native/java_lang_reflect_Field.cc')
-rw-r--r--runtime/native/java_lang_reflect_Field.cc342
1 files changed, 342 insertions, 0 deletions
diff --git a/runtime/native/java_lang_reflect_Field.cc b/runtime/native/java_lang_reflect_Field.cc
new file mode 100644
index 0000000..b0daa91
--- /dev/null
+++ b/runtime/native/java_lang_reflect_Field.cc
@@ -0,0 +1,342 @@
+/*
+ * 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 "class_linker.h"
+#include "class_linker-inl.h"
+#include "common_throws.h"
+#include "dex_file-inl.h"
+#include "jni_internal.h"
+#include "mirror/class-inl.h"
+#include "mirror/field.h"
+#include "mirror/field-inl.h"
+#include "object_utils.h"
+#include "reflection.h"
+#include "scoped_thread_state_change.h"
+
+namespace art {
+
+static bool GetFieldValue(const ScopedObjectAccess& soa, mirror::Object* o, mirror::Field* f,
+ JValue& value, bool allow_references)
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+ DCHECK_EQ(value.GetJ(), 0LL);
+ if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(f->GetDeclaringClass(),
+ true, true)) {
+ return false;
+ }
+ switch (FieldHelper(f).GetTypeAsPrimitiveType()) {
+ case Primitive::kPrimBoolean:
+ value.SetZ(f->GetBoolean(o));
+ return true;
+ case Primitive::kPrimByte:
+ value.SetB(f->GetByte(o));
+ return true;
+ case Primitive::kPrimChar:
+ value.SetC(f->GetChar(o));
+ return true;
+ case Primitive::kPrimDouble:
+ value.SetD(f->GetDouble(o));
+ return true;
+ case Primitive::kPrimFloat:
+ value.SetF(f->GetFloat(o));
+ return true;
+ case Primitive::kPrimInt:
+ value.SetI(f->GetInt(o));
+ return true;
+ case Primitive::kPrimLong:
+ value.SetJ(f->GetLong(o));
+ return true;
+ case Primitive::kPrimShort:
+ value.SetS(f->GetShort(o));
+ return true;
+ case Primitive::kPrimNot:
+ if (allow_references) {
+ value.SetL(f->GetObject(o));
+ return true;
+ }
+ // Else break to report an error.
+ break;
+ case Primitive::kPrimVoid:
+ // Never okay.
+ break;
+ }
+ ThrowIllegalArgumentException(NULL,
+ StringPrintf("Not a primitive field: %s",
+ PrettyField(f).c_str()).c_str());
+ return false;
+}
+
+static bool CheckReceiver(const ScopedObjectAccess& soa, jobject j_rcvr, mirror::Field* f,
+ mirror::Object*& class_or_rcvr)
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+ if (f->IsStatic()) {
+ class_or_rcvr = f->GetDeclaringClass();
+ return true;
+ }
+
+ class_or_rcvr = soa.Decode<mirror::Object*>(j_rcvr);
+ mirror::Class* declaringClass = f->GetDeclaringClass();
+ if (!VerifyObjectInClass(class_or_rcvr, declaringClass)) {
+ return false;
+ }
+ return true;
+}
+
+static jobject Field_get(JNIEnv* env, jobject javaField, jobject javaObj) {
+ ScopedObjectAccess soa(env);
+ mirror::Field* f = soa.DecodeField(env->FromReflectedField(javaField));
+ mirror::Object* o = NULL;
+ if (!CheckReceiver(soa, javaObj, f, o)) {
+ return NULL;
+ }
+
+ // Get the field's value, boxing if necessary.
+ JValue value;
+ if (!GetFieldValue(soa, o, f, value, true)) {
+ return NULL;
+ }
+ return
+ soa.AddLocalReference<jobject>(BoxPrimitive(FieldHelper(f).GetTypeAsPrimitiveType(), value));
+}
+
+static JValue GetPrimitiveField(JNIEnv* env, jobject javaField, jobject javaObj, char dst_descriptor) {
+ ScopedObjectAccess soa(env);
+ mirror::Field* f = soa.DecodeField(env->FromReflectedField(javaField));
+ mirror::Object* o = NULL;
+ if (!CheckReceiver(soa, javaObj, f, o)) {
+ return JValue();
+ }
+
+ // Read the value.
+ JValue field_value;
+ if (!GetFieldValue(soa, o, f, field_value, false)) {
+ return JValue();
+ }
+
+ // Widen it if necessary (and possible).
+ JValue wide_value;
+ mirror::Class* dst_type = Runtime::Current()->GetClassLinker()->FindPrimitiveClass(dst_descriptor);
+ if (!ConvertPrimitiveValue(NULL, false, FieldHelper(f).GetTypeAsPrimitiveType(),
+ dst_type->GetPrimitiveType(), field_value, wide_value)) {
+ return JValue();
+ }
+ return wide_value;
+}
+
+static jboolean Field_getBoolean(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'Z').GetZ();
+}
+
+static jbyte Field_getByte(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'B').GetB();
+}
+
+static jchar Field_getChar(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'C').GetC();
+}
+
+static jdouble Field_getDouble(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'D').GetD();
+}
+
+static jfloat Field_getFloat(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'F').GetF();
+}
+
+static jint Field_getInt(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'I').GetI();
+}
+
+static jlong Field_getLong(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'J').GetJ();
+}
+
+static jshort Field_getShort(JNIEnv* env, jobject javaField, jobject javaObj) {
+ return GetPrimitiveField(env, javaField, javaObj, 'S').GetS();
+}
+
+static void SetFieldValue(mirror::Object* o, mirror::Field* f, const JValue& new_value,
+ bool allow_references)
+ SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
+ if (!Runtime::Current()->GetClassLinker()->EnsureInitialized(f->GetDeclaringClass(),
+ true, true)) {
+ return;
+ }
+ switch (FieldHelper(f).GetTypeAsPrimitiveType()) {
+ case Primitive::kPrimBoolean:
+ f->SetBoolean(o, new_value.GetZ());
+ break;
+ case Primitive::kPrimByte:
+ f->SetByte(o, new_value.GetB());
+ break;
+ case Primitive::kPrimChar:
+ f->SetChar(o, new_value.GetC());
+ break;
+ case Primitive::kPrimDouble:
+ f->SetDouble(o, new_value.GetD());
+ break;
+ case Primitive::kPrimFloat:
+ f->SetFloat(o, new_value.GetF());
+ break;
+ case Primitive::kPrimInt:
+ f->SetInt(o, new_value.GetI());
+ break;
+ case Primitive::kPrimLong:
+ f->SetLong(o, new_value.GetJ());
+ break;
+ case Primitive::kPrimShort:
+ f->SetShort(o, new_value.GetS());
+ break;
+ case Primitive::kPrimNot:
+ if (allow_references) {
+ f->SetObject(o, new_value.GetL());
+ break;
+ }
+ // Else fall through to report an error.
+ case Primitive::kPrimVoid:
+ // Never okay.
+ ThrowIllegalArgumentException(NULL, StringPrintf("Not a primitive field: %s",
+ PrettyField(f).c_str()).c_str());
+ return;
+ }
+
+ // Special handling for final fields on SMP systems.
+ // We need a store/store barrier here (JMM requirement).
+ if (f->IsFinal()) {
+ ANDROID_MEMBAR_STORE();
+ }
+}
+
+static void Field_set(JNIEnv* env, jobject javaField, jobject javaObj, jobject javaValue) {
+ ScopedObjectAccess soa(env);
+ mirror::Field* f = soa.DecodeField(env->FromReflectedField(javaField));
+
+ // Unbox the value, if necessary.
+ mirror::Object* boxed_value = soa.Decode<mirror::Object*>(javaValue);
+ JValue unboxed_value;
+ if (!UnboxPrimitiveForField(boxed_value, FieldHelper(f).GetType(), unboxed_value, f)) {
+ return;
+ }
+
+ // Check that the receiver is non-null and an instance of the field's declaring class.
+ mirror::Object* o = NULL;
+ if (!CheckReceiver(soa, javaObj, f, o)) {
+ return;
+ }
+
+ SetFieldValue(o, f, unboxed_value, true);
+}
+
+static void SetPrimitiveField(JNIEnv* env, jobject javaField, jobject javaObj, char src_descriptor,
+ const JValue& new_value) {
+ ScopedObjectAccess soa(env);
+ mirror::Field* f = soa.DecodeField(env->FromReflectedField(javaField));
+ mirror::Object* o = NULL;
+ if (!CheckReceiver(soa, javaObj, f, o)) {
+ return;
+ }
+ FieldHelper fh(f);
+ if (!fh.IsPrimitiveType()) {
+ ThrowIllegalArgumentException(NULL, StringPrintf("Not a primitive field: %s",
+ PrettyField(f).c_str()).c_str());
+ return;
+ }
+
+ // Widen the value if necessary (and possible).
+ JValue wide_value;
+ mirror::Class* src_type = Runtime::Current()->GetClassLinker()->FindPrimitiveClass(src_descriptor);
+ if (!ConvertPrimitiveValue(NULL, false, src_type->GetPrimitiveType(), fh.GetTypeAsPrimitiveType(),
+ new_value, wide_value)) {
+ return;
+ }
+
+ // Write the value.
+ SetFieldValue(o, f, wide_value, false);
+}
+
+static void Field_setBoolean(JNIEnv* env, jobject javaField, jobject javaObj, jboolean z) {
+ JValue value;
+ value.SetZ(z);
+ SetPrimitiveField(env, javaField, javaObj, 'Z', value);
+}
+
+static void Field_setByte(JNIEnv* env, jobject javaField, jobject javaObj, jbyte b) {
+ JValue value;
+ value.SetB(b);
+ SetPrimitiveField(env, javaField, javaObj, 'B', value);
+}
+
+static void Field_setChar(JNIEnv* env, jobject javaField, jobject javaObj, jchar c) {
+ JValue value;
+ value.SetC(c);
+ SetPrimitiveField(env, javaField, javaObj, 'C', value);
+}
+
+static void Field_setDouble(JNIEnv* env, jobject javaField, jobject javaObj, jdouble d) {
+ JValue value;
+ value.SetD(d);
+ SetPrimitiveField(env, javaField, javaObj, 'D', value);
+}
+
+static void Field_setFloat(JNIEnv* env, jobject javaField, jobject javaObj, jfloat f) {
+ JValue value;
+ value.SetF(f);
+ SetPrimitiveField(env, javaField, javaObj, 'F', value);
+}
+
+static void Field_setInt(JNIEnv* env, jobject javaField, jobject javaObj, jint i) {
+ JValue value;
+ value.SetI(i);
+ SetPrimitiveField(env, javaField, javaObj, 'I', value);
+}
+
+static void Field_setLong(JNIEnv* env, jobject javaField, jobject javaObj, jlong j) {
+ JValue value;
+ value.SetJ(j);
+ SetPrimitiveField(env, javaField, javaObj, 'J', value);
+}
+
+static void Field_setShort(JNIEnv* env, jobject javaField, jobject javaObj, jshort s) {
+ JValue value;
+ value.SetS(s);
+ SetPrimitiveField(env, javaField, javaObj, 'S', value);
+}
+
+static JNINativeMethod gMethods[] = {
+ NATIVE_METHOD(Field, get, "(Ljava/lang/Object;)Ljava/lang/Object;"),
+ NATIVE_METHOD(Field, getBoolean, "(Ljava/lang/Object;)Z"),
+ NATIVE_METHOD(Field, getByte, "(Ljava/lang/Object;)B"),
+ NATIVE_METHOD(Field, getChar, "(Ljava/lang/Object;)C"),
+ NATIVE_METHOD(Field, getDouble, "(Ljava/lang/Object;)D"),
+ NATIVE_METHOD(Field, getFloat, "(Ljava/lang/Object;)F"),
+ NATIVE_METHOD(Field, getInt, "(Ljava/lang/Object;)I"),
+ NATIVE_METHOD(Field, getLong, "(Ljava/lang/Object;)J"),
+ NATIVE_METHOD(Field, getShort, "(Ljava/lang/Object;)S"),
+ NATIVE_METHOD(Field, set, "(Ljava/lang/Object;Ljava/lang/Object;)V"),
+ NATIVE_METHOD(Field, setBoolean, "(Ljava/lang/Object;Z)V"),
+ NATIVE_METHOD(Field, setByte, "(Ljava/lang/Object;B)V"),
+ NATIVE_METHOD(Field, setChar, "(Ljava/lang/Object;C)V"),
+ NATIVE_METHOD(Field, setDouble, "(Ljava/lang/Object;D)V"),
+ NATIVE_METHOD(Field, setFloat, "(Ljava/lang/Object;F)V"),
+ NATIVE_METHOD(Field, setInt, "(Ljava/lang/Object;I)V"),
+ NATIVE_METHOD(Field, setLong, "(Ljava/lang/Object;J)V"),
+ NATIVE_METHOD(Field, setShort, "(Ljava/lang/Object;S)V"),
+};
+
+void register_java_lang_reflect_Field(JNIEnv* env) {
+ REGISTER_NATIVE_METHODS("java/lang/reflect/Field");
+}
+
+} // namespace art