simple test to make sure v8 cgo is working

Author: rogchap

.gitignore

@@ -1,2 +1,6 @@
 *swp
 .DS_Store
+
+build
+.cipd
+.gclient_entries

README.md

@@ -0,0 +1 @@
+# v8go provides an API to v8 Javascript Engine

cgo.go

@@ -0,0 +1,8 @@
+package v8go
+
+// #include <stdlib.h>
+//
+// #cgo CXXFLAGS: -fno-rtti -fpic -std=c++11 -I${SRCDIR}/deps/include
+// #cgo LDFLAGS: -pthread -lv8
+// #cgo darwin LDFLAGS: -L${SRCDIR}/deps/darwin-x86_64
+import "C"

deps/build.py

@@ -2,6 +2,7 @@
 import platform
 import os
 import subprocess
+import shutil
 
 deps_path = os.path.dirname(os.path.realpath(__file__))
 v8_path = os.path.join(deps_path, "v8")
@@ -35,26 +36,25 @@
 ]
 
 gn_args = """
-    is_component_build=false
-    is_debug=false
-    symbol_level=0
-    strip_debug_info=true
-    treat_warnings_as_errors=false
-    use_custom_libcxx=false
-    use_sysroot=false
-    v8_deprecation_warnings=false
-    v8_embedder_string="-v8worker2"
-    v8_enable_gdbjit=false
-    v8_enable_i18n_support=false
-    v8_enable_test_features=false
-    v8_extra_library_files=[]
-    v8_imminent_deprecation_warnings=false
-    v8_monolithic=true
-    v8_static_library=true
-    v8_target_cpu="x64"
-    v8_untrusted_code_mitigations=false
-    v8_use_external_startup_data=false
-    v8_use_snapshot=true
+clang_use_chrome_plugins=false
+linux_use_bundled_binutils=false
+use_custom_libcxx=false
+use_sysroot=false
+is_debug=false
+symbol_level=0
+is_component_build=false
+v8_monolithic=true
+v8_static_library=true
+v8_use_external_startup_data=false
+treat_warnings_as_errors=false
+v8_embedder_string="-v8go"
+strip_debug_info=true
+v8_enable_gdbjit=false
+v8_enable_i18n_support=false
+v8_enable_test_features=false
+v8_extra_library_files=[]
+v8_untrusted_code_mitigations=false
+v8_use_snapshot=true
 """
 
 def v8deps():
@@ -87,5 +87,10 @@ def main():
                         cwd=v8_path,
                         env=env)
 
+    lib_fn = os.path.join(build_path, "obj/libv8_monolith.a")
+    dest_fn = os.path.join(deps_path, os_arch(), 'libv8.a')
+    shutil.copy(lib_fn, dest_fn)
+
+
 if __name__ == "__main__":
     main()

deps/depot_tools

@@ -0,0 +1,29 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_LIBPLATFORM_LIBPLATFORM_EXPORT_H_
+#define V8_LIBPLATFORM_LIBPLATFORM_EXPORT_H_
+
+#if defined(_WIN32)
+
+#ifdef BUILDING_V8_PLATFORM_SHARED
+#define V8_PLATFORM_EXPORT __declspec(dllexport)
+#elif USING_V8_PLATFORM_SHARED
+#define V8_PLATFORM_EXPORT __declspec(dllimport)
+#else
+#define V8_PLATFORM_EXPORT
+#endif  // BUILDING_V8_PLATFORM_SHARED
+
+#else  // defined(_WIN32)
+
+// Setup for Linux shared library export.
+#ifdef BUILDING_V8_PLATFORM_SHARED
+#define V8_PLATFORM_EXPORT __attribute__((visibility("default")))
+#else
+#define V8_PLATFORM_EXPORT
+#endif
+
+#endif  // defined(_WIN32)
+
+#endif  // V8_LIBPLATFORM_LIBPLATFORM_EXPORT_H_

deps/include/libplatform/libplatform-export.h

@@ -0,0 +1,82 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef V8_LIBPLATFORM_LIBPLATFORM_H_
+#define V8_LIBPLATFORM_LIBPLATFORM_H_
+
+#include "libplatform/libplatform-export.h"
+#include "libplatform/v8-tracing.h"
+#include "v8-platform.h"  // NOLINT(build/include)
+#include "v8config.h"     // NOLINT(build/include)
+
+namespace v8 {
+namespace platform {
+
+enum class IdleTaskSupport { kDisabled, kEnabled };
+enum class InProcessStackDumping { kDisabled, kEnabled };
+
+enum class MessageLoopBehavior : bool {
+  kDoNotWait = false,
+  kWaitForWork = true
+};
+
+/**
+ * Returns a new instance of the default v8::Platform implementation.
+ *
+ * The caller will take ownership of the returned pointer. |thread_pool_size|
+ * is the number of worker threads to allocate for background jobs. If a value
+ * of zero is passed, a suitable default based on the current number of
+ * processors online will be chosen.
+ * If |idle_task_support| is enabled then the platform will accept idle
+ * tasks (IdleTasksEnabled will return true) and will rely on the embedder
+ * calling v8::platform::RunIdleTasks to process the idle tasks.
+ * If |tracing_controller| is nullptr, the default platform will create a
+ * v8::platform::TracingController instance and use it.
+ */
+V8_PLATFORM_EXPORT std::unique_ptr<v8::Platform> NewDefaultPlatform(
+    int thread_pool_size = 0,
+    IdleTaskSupport idle_task_support = IdleTaskSupport::kDisabled,
+    InProcessStackDumping in_process_stack_dumping =
+        InProcessStackDumping::kDisabled,
+    std::unique_ptr<v8::TracingController> tracing_controller = {});
+
+/**
+ * Pumps the message loop for the given isolate.
+ *
+ * The caller has to make sure that this is called from the right thread.
+ * Returns true if a task was executed, and false otherwise. Unless requested
+ * through the |behavior| parameter, this call does not block if no task is
+ * pending. The |platform| has to be created using |NewDefaultPlatform|.
+ */
+V8_PLATFORM_EXPORT bool PumpMessageLoop(
+    v8::Platform* platform, v8::Isolate* isolate,
+    MessageLoopBehavior behavior = MessageLoopBehavior::kDoNotWait);
+
+/**
+ * Runs pending idle tasks for at most |idle_time_in_seconds| seconds.
+ *
+ * The caller has to make sure that this is called from the right thread.
+ * This call does not block if no task is pending. The |platform| has to be
+ * created using |NewDefaultPlatform|.
+ */
+V8_PLATFORM_EXPORT void RunIdleTasks(v8::Platform* platform,
+                                     v8::Isolate* isolate,
+                                     double idle_time_in_seconds);
+
+/**
+ * Attempts to set the tracing controller for the given platform.
+ *
+ * The |platform| has to be created using |NewDefaultPlatform|.
+ *
+ */
+V8_PLATFORM_EXPORT V8_DEPRECATE_SOON(
+    "Access the DefaultPlatform directly",
+    void SetTracingController(
+        v8::Platform* platform,
+        v8::platform::tracing::TracingController* tracing_controller));
+
+}  // namespace platform
+}  // namespace v8
+
+#endif  // V8_LIBPLATFORM_LIBPLATFORM_H_