Files
node/tools/code_cache/mkcodecache.cc
Antoine du Hamel 2cc7a91a5d esm: add support for JSON import assertion
Remove V8 flag for import assertions, enabling support for the syntax;
require the import assertion syntax for imports of JSON.

Support import assertions in user loaders.

Use both resolved module URL and import assertion type as the key for
caching modules.

Co-authored-by: Geoffrey Booth <webadmin@geoffreybooth.com>

PR-URL: https://github.com/nodejs/node/pull/40250
Reviewed-By: Bradley Farias <bradley.meck@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Geoffrey Booth <webadmin@geoffreybooth.com>
2021-11-03 20:06:55 -07:00

74 lines
2.0 KiB
C++

#include <cstdio>
#include <fstream>
#include <iostream>
#include <sstream>
#include <string>
#include "cache_builder.h"
#include "debug_utils-inl.h"
#include "libplatform/libplatform.h"
#include "v8.h"
using node::native_module::CodeCacheBuilder;
using v8::ArrayBuffer;
using v8::Context;
using v8::HandleScope;
using v8::Isolate;
using v8::Local;
#ifdef _WIN32
#include <VersionHelpers.h>
#include <WinError.h>
#include <windows.h>
int wmain(int argc, wchar_t* argv[]) {
#else // UNIX
int main(int argc, char* argv[]) {
argv = uv_setup_args(argc, argv);
#endif // _WIN32
v8::V8::SetFlagsFromString("--random_seed=42");
v8::V8::SetFlagsFromString("--harmony-import-assertions");
if (argc < 2) {
std::cerr << "Usage: " << argv[0] << " <path/to/output.cc>\n";
return 1;
}
std::ofstream out;
out.open(argv[1], std::ios::out | std::ios::binary);
if (!out.is_open()) {
std::cerr << "Cannot open " << argv[1] << "\n";
return 1;
}
node::per_process::enabled_debug_list.Parse(nullptr);
std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
v8::V8::InitializePlatform(platform.get());
v8::V8::Initialize();
// Create a new Isolate and make it the current one.
Isolate::CreateParams create_params;
create_params.array_buffer_allocator_shared.reset(
ArrayBuffer::Allocator::NewDefaultAllocator());
Isolate* isolate = Isolate::New(create_params);
{
Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = v8::Context::New(isolate);
v8::Context::Scope context_scope(context);
// The command line flags are part of the code cache's checksum so reset
// --random_seed= to its default value before creating the code cache.
v8::V8::SetFlagsFromString("--random_seed=0");
std::string cache = CodeCacheBuilder::Generate(context);
out << cache;
out.close();
}
isolate->Dispose();
v8::V8::ShutdownPlatform();
return 0;
}