Chrome on Android: adds jni_generator.

base/android/jni_generator/golden_sample_for_tests_jni.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+
+// This file is autogenerated by base/android/jni_generator/jni_generator_tests.py
+// For org/chromium/example/jni_generator/SampleForTests
+
+#ifndef org_chromium_example_jni_generator_SampleForTests_JNI
+#define org_chromium_example_jni_generator_SampleForTests_JNI
+
+#include <jni.h>
+
+#include "base/android/jni_android.h"
+#include "base/android/scoped_java_ref.h"
+#include "base/basictypes.h"
+#include "base/logging.h"
+
+using base::android::ScopedJavaLocalRef;

[joth, 2012/02/16 18:32:23]

shouldn't have using in a .h file. (and it doesn't seem to be used anyway)

+
+// Step 1: forward declarations.
+namespace {
+const char* const kInnerClassClassPath = "org/chromium/example/jni_generator/SampleForTests$InnerClass";
+const char* const kSampleForTestsClassPath = "org/chromium/example/jni_generator/SampleForTests";
+// Leaking this JavaRef as we cannot use LazyInstance from some threads.
+base::android::ScopedJavaGlobalRef<jclass>&
+    g_InnerClass_clazz = *(new base::android::ScopedJavaGlobalRef<jclass>());
+// Leaking this JavaRef as we cannot use LazyInstance from some threads.
+base::android::ScopedJavaGlobalRef<jclass>&
+    g_SampleForTests_clazz = *(new base::android::ScopedJavaGlobalRef<jclass>());
+}  // namespace
+
+static jint Init(JNIEnv* env, jobject obj);
+
+
+static jdouble GetDoubleFunction(JNIEnv* env, jobject obj);
+
+
+static jfloat GetFloatFunction(JNIEnv* env, jclass clazz);
+
+
+static void SetNonPODDatatype(JNIEnv* env, jobject obj,
+    jobject rect);
+
+
+static jobject GetNonPODDatatype(JNIEnv* env, jobject obj);

[joth, 2012/02/16 18:32:23]

In the java it said this would be declared to return ScopedJavaLocalRef, but
here it's actually returning naked jobject. (which seems to make more sense,
seems this is going back over the JNI boundary anyway and we don't want to
release the ref before returning it)

+
+
+static jint InnerFunction(JNIEnv* env, jclass clazz);
+
+
+// Step 2: method stubs.
+static void Destroy(JNIEnv* env, jobject obj,
+    jint nativeCPPClass) {
+  DCHECK(nativeCPPClass) << "Destroy";
+  CPPClass* native = reinterpret_cast<CPPClass*>(nativeCPPClass);
+  return native->Destroy(env, obj);
+}
+
+static jint Method(JNIEnv* env, jobject obj,
+    jint nativeCPPClass) {
+  DCHECK(nativeCPPClass) << "Method";
+  CPPClass* native = reinterpret_cast<CPPClass*>(nativeCPPClass);
+  return native->Method(env, obj);
+}
+
+static jdouble MethodOtherP0(JNIEnv* env, jobject obj,
+    jint nativeCPPClass) {
+  DCHECK(nativeCPPClass) << "MethodOtherP0";
+  cpp_namespace::CPPClass* native = reinterpret_cast<cpp_namespace::CPPClass*>(nativeCPPClass);
+  return native->MethodOtherP0(env, obj);
+}
+
+static jstring InnerMethod(JNIEnv* env, jobject obj,
+    jint nativeCPPClass) {
+  DCHECK(nativeCPPClass) << "InnerMethod";
+  CPPClass* native = reinterpret_cast<CPPClass*>(nativeCPPClass);
+  return native->InnerMethod(env, obj).Release();
+}
+
+
+static jmethodID g_SampleForTests_javaMethod = 0;
+static jint Java_SampleForTests_javaMethod(JNIEnv* env, jobject obj, jint foo,
+    jint bar) {
+  DCHECK(!g_SampleForTests_clazz.is_null());  /* Must call RegisterNativesImpl()  */
+  DCHECK(g_SampleForTests_javaMethod);
+  jint ret =
+  env->CallIntMethod(obj,
+      g_SampleForTests_javaMethod, foo, bar);
+  base::android::CheckException(env);
+  return ret;
+}
+
+static jmethodID g_SampleForTests_staticJavaMethod = 0;
+static jboolean Java_SampleForTests_staticJavaMethod(JNIEnv* env) {
+  DCHECK(!g_SampleForTests_clazz.is_null());  /* Must call RegisterNativesImpl()  */
+  DCHECK(g_SampleForTests_staticJavaMethod);
+  jboolean ret =
+  env->CallStaticBooleanMethod(g_SampleForTests_clazz.obj(),
+      g_SampleForTests_staticJavaMethod);
+  base::android::CheckException(env);
+  return ret;
+}
+
+static jmethodID g_SampleForTests_packagePrivateJavaMethod = 0;
+static void Java_SampleForTests_packagePrivateJavaMethod(JNIEnv* env, jobject obj) {
+  DCHECK(!g_SampleForTests_clazz.is_null());  /* Must call RegisterNativesImpl()  */
+  DCHECK(g_SampleForTests_packagePrivateJavaMethod);
+
+  env->CallVoidMethod(obj,
+      g_SampleForTests_packagePrivateJavaMethod);
+  base::android::CheckException(env);
+
+}
+
+static jmethodID g_SampleForTests_methodThatThrowsException = 0;
+static void Java_SampleForTests_methodThatThrowsException(JNIEnv* env, jobject obj) {
+  DCHECK(!g_SampleForTests_clazz.is_null());  /* Must call RegisterNativesImpl()  */
+  DCHECK(g_SampleForTests_methodThatThrowsException);
+
+  env->CallVoidMethod(obj,
+      g_SampleForTests_methodThatThrowsException);
+
+
+}
+
+static jmethodID g_InnerClass_JavaInnerMethod = 0;
+static jfloat Java_InnerClass_JavaInnerMethod(JNIEnv* env, jobject obj) {
+  DCHECK(!g_InnerClass_clazz.is_null());  /* Must call RegisterNativesImpl()  */
+  DCHECK(g_InnerClass_JavaInnerMethod);
+  jfloat ret =
+  env->CallFloatMethod(obj,
+      g_InnerClass_JavaInnerMethod);
+  base::android::CheckException(env);
+  return ret;
+}
+
+static jmethodID g_InnerClass_javaInnerFunction = 0;
+static void Java_InnerClass_javaInnerFunction(JNIEnv* env) {
+  DCHECK(!g_InnerClass_clazz.is_null());  /* Must call RegisterNativesImpl()  */
+  DCHECK(g_InnerClass_javaInnerFunction);
+
+  env->CallStaticVoidMethod(g_InnerClass_clazz.obj(),
+      g_InnerClass_javaInnerFunction);
+  base::android::CheckException(env);
+
+}
+
+// Step 3: GetMethodIDs and RegisterNatives.
+
+
+static void GetMethodIDsImpl(JNIEnv* env) {
+  g_InnerClass_clazz.Reset(base::android::GetClass(env, kInnerClassClassPath));
+  g_SampleForTests_clazz.Reset(base::android::GetClass(env, kSampleForTestsClassPath));
+  g_SampleForTests_javaMethod = base::android::GetMethodID(
+    env, g_SampleForTests_clazz,
+    "javaMethod",
+    "(II)I");
+
+  g_SampleForTests_staticJavaMethod = base::android::GetStaticMethodID(
+    env, g_SampleForTests_clazz,
+    "staticJavaMethod",
+    "()Z");
+
+  g_SampleForTests_packagePrivateJavaMethod = base::android::GetMethodID(
+    env, g_SampleForTests_clazz,
+    "packagePrivateJavaMethod",
+    "()V");
+
+  g_SampleForTests_methodThatThrowsException = base::android::GetMethodID(
+    env, g_SampleForTests_clazz,
+    "methodThatThrowsException",
+    "()V");
+
+  g_InnerClass_JavaInnerMethod = base::android::GetMethodID(
+    env, g_InnerClass_clazz,
+    "JavaInnerMethod",
+    "()F");
+
+  g_InnerClass_javaInnerFunction = base::android::GetStaticMethodID(
+    env, g_InnerClass_clazz,
+    "javaInnerFunction",
+    "()V");
+
+}
+
+static bool RegisterNativesImpl(JNIEnv* env) {
+  GetMethodIDsImpl(env);
+
+  static const JNINativeMethod kMethodsInnerClass[] = {
+    { "nativeInnerFunction", "()I", reinterpret_cast<void*>(InnerFunction) },
+    { "nativeInnerMethod", "(I)Ljava/lang/String;", reinterpret_cast<void*>(InnerMethod) },
+  };
+  const int kMethodsInnerClassSize = arraysize(kMethodsInnerClass);
+
+  if (env->RegisterNatives(g_InnerClass_clazz.obj(),
+                           kMethodsInnerClass,
+                           kMethodsInnerClassSize) < 0) {
+    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
+    return false;
+  }
+
+  static const JNINativeMethod kMethodsSampleForTests[] = {
+    { "nativeInit", "()I", reinterpret_cast<void*>(Init) },
+    { "nativeDestroy", "(I)V", reinterpret_cast<void*>(Destroy) },
+    { "nativeGetDoubleFunction", "()D", reinterpret_cast<void*>(GetDoubleFunction) },
+    { "nativeGetFloatFunction", "()F", reinterpret_cast<void*>(GetFloatFunction) },
+    { "nativeSetNonPODDatatype", "(Landroid/graphics/Rect;)V", reinterpret_cast<void*>(SetNonPODDatatype) },
+    { "nativeGetNonPODDatatype", "()Ljava/lang/Object;", reinterpret_cast<void*>(GetNonPODDatatype) },
+    { "nativeMethod", "(I)I", reinterpret_cast<void*>(Method) },
+    { "nativeMethodOtherP0", "(I)D", reinterpret_cast<void*>(MethodOtherP0) },
+  };
+  const int kMethodsSampleForTestsSize = arraysize(kMethodsSampleForTests);
+
+  if (env->RegisterNatives(g_SampleForTests_clazz.obj(),
+                           kMethodsSampleForTests,
+                           kMethodsSampleForTestsSize) < 0) {
+    LOG(ERROR) << "RegisterNatives failed in " << __FILE__;
+    return false;
+  }
+
+  return true;
+}
+
+#endif  // org_chromium_example_jni_generator_SampleForTests_JNI