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// Copyright 2018 the Deno authors. All rights reserved. MIT license.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string>
#include "third_party/v8/include/libplatform/libplatform.h"
#include "third_party/v8/include/v8.h"
#include "third_party/v8/src/base/logging.h"
#include "deno.h"
#include "internal.h"
extern "C" {
Deno* deno_new(deno_buf snapshot, deno_recv_cb cb) {
deno::DenoIsolate* d = new deno::DenoIsolate(snapshot, cb);
v8::Isolate::CreateParams params;
params.array_buffer_allocator =
v8::ArrayBuffer::Allocator::NewDefaultAllocator();
params.external_references = deno::external_references;
if (snapshot.data_ptr) {
params.snapshot_blob = &d->snapshot_;
}
v8::Isolate* isolate = v8::Isolate::New(params);
d->AddIsolate(isolate);
v8::Locker locker(isolate);
v8::Isolate::Scope isolate_scope(isolate);
{
v8::HandleScope handle_scope(isolate);
auto context =
v8::Context::New(isolate, nullptr, v8::MaybeLocal<v8::ObjectTemplate>(),
v8::MaybeLocal<v8::Value>(),
v8::DeserializeInternalFieldsCallback(
deno::DeserializeInternalFields, nullptr));
d->context_.Reset(isolate, context);
}
return reinterpret_cast<Deno*>(d);
}
deno::DenoIsolate* unwrap(Deno* d_) {
return reinterpret_cast<deno::DenoIsolate*>(d_);
}
void deno_init() {
// v8::V8::InitializeICUDefaultLocation(argv[0]);
// v8::V8::InitializeExternalStartupData(argv[0]);
auto* p = v8::platform::CreateDefaultPlatform();
v8::V8::InitializePlatform(p);
v8::V8::Initialize();
}
const char* deno_v8_version() { return v8::V8::GetVersion(); }
void deno_set_v8_flags(int* argc, char** argv) {
v8::V8::SetFlagsFromCommandLine(argc, argv, true);
}
const char* deno_last_exception(Deno* d_) {
auto* d = unwrap(d_);
return d->last_exception_.c_str();
}
int deno_execute(Deno* d_, void* user_data_, const char* js_filename,
const char* js_source) {
auto* d = unwrap(d_);
deno::UserDataScope user_data_scope(d, user_data_);
auto* isolate = d->isolate_;
v8::Locker locker(isolate);
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
auto context = d->context_.Get(d->isolate_);
return deno::Execute(context, js_filename, js_source) ? 1 : 0;
}
int deno_respond(Deno* d_, void* user_data_, int32_t req_id, deno_buf buf) {
auto* d = unwrap(d_);
if (d->current_args_ != nullptr) {
// Synchronous response.
auto ab = deno::ImportBuf(d, buf);
d->current_args_->GetReturnValue().Set(ab);
d->current_args_ = nullptr;
return 0;
}
// Asynchronous response.
deno::UserDataScope user_data_scope(d, user_data_);
v8::Locker locker(d->isolate_);
v8::Isolate::Scope isolate_scope(d->isolate_);
v8::HandleScope handle_scope(d->isolate_);
auto context = d->context_.Get(d->isolate_);
v8::Context::Scope context_scope(context);
v8::TryCatch try_catch(d->isolate_);
deno::DeleteDataRef(d, req_id);
auto recv_ = d->recv_.Get(d->isolate_);
if (recv_.IsEmpty()) {
d->last_exception_ = "libdeno.recv_ has not been called.";
return 1;
}
v8::Local<v8::Value> args[1];
args[0] = deno::ImportBuf(d, buf);
recv_->Call(context->Global(), 1, args);
if (try_catch.HasCaught()) {
deno::HandleException(context, try_catch.Exception());
return 1;
}
return 0;
}
void deno_check_promise_errors(Deno* d_) {
auto* d = unwrap(d_);
if (d->pending_promise_events_ > 0) {
auto* isolate = d->isolate_;
v8::Locker locker(isolate);
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
auto context = d->context_.Get(d->isolate_);
v8::Context::Scope context_scope(context);
v8::TryCatch try_catch(d->isolate_);
auto promise_error_examiner_ = d->promise_error_examiner_.Get(d->isolate_);
if (promise_error_examiner_.IsEmpty()) {
d->last_exception_ =
"libdeno.setPromiseErrorExaminer has not been called.";
return;
}
v8::Local<v8::Value> args[0];
auto result = promise_error_examiner_->Call(context->Global(), 0, args);
if (try_catch.HasCaught()) {
deno::HandleException(context, try_catch.Exception());
}
d->pending_promise_events_ = 0; // reset
if (!result->BooleanValue(context).FromJust()) {
// Has uncaught promise reject error, exiting...
exit(1);
}
}
}
void deno_delete(Deno* d_) {
deno::DenoIsolate* d = reinterpret_cast<deno::DenoIsolate*>(d_);
d->isolate_->Dispose();
delete d;
}
void deno_terminate_execution(Deno* d_) {
deno::DenoIsolate* d = reinterpret_cast<deno::DenoIsolate*>(d_);
d->isolate_->TerminateExecution();
}
}
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