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authorRyan Dahl <ry@tinyclouds.org>2019-03-30 14:45:36 -0400
committerGitHub <noreply@github.com>2019-03-30 14:45:36 -0400
commitc9614d86c190b98bd8f0df9e17272387c3bad1d5 (patch)
tree68d9054cabb8a829beac72024d48c37f0fce7321 /core/libdeno/modules.cc
parentad3cbc50fb255f287a890a28f158f6842d335538 (diff)
Move //libdeno to //core/libdeno (#2015)
Fixes some sed errors introduced in c43cfe. Unfortunately moving libdeno required splitting build.rs into two parts, one for cli and one for core. I've also removed the arm64 build - it's complicating things at this re-org and we're not even testing it. I need to swing back to it and get tools/test.py running for it.
Diffstat (limited to 'core/libdeno/modules.cc')
-rw-r--r--core/libdeno/modules.cc154
1 files changed, 154 insertions, 0 deletions
diff --git a/core/libdeno/modules.cc b/core/libdeno/modules.cc
new file mode 100644
index 000000000..0b408aec8
--- /dev/null
+++ b/core/libdeno/modules.cc
@@ -0,0 +1,154 @@
+// Copyright 2018 the Deno authors. All rights reserved. MIT license.
+#include "exceptions.h"
+#include "internal.h"
+
+using deno::DenoIsolate;
+using deno::HandleException;
+using v8::Boolean;
+using v8::Context;
+using v8::EscapableHandleScope;
+using v8::HandleScope;
+using v8::Integer;
+using v8::Isolate;
+using v8::Local;
+using v8::Locker;
+using v8::Module;
+using v8::Object;
+using v8::ScriptCompiler;
+using v8::ScriptOrigin;
+using v8::String;
+using v8::Value;
+
+v8::MaybeLocal<v8::Module> ResolveCallback(Local<Context> context,
+ Local<String> specifier,
+ Local<Module> referrer) {
+ auto* isolate = context->GetIsolate();
+ v8::Isolate::Scope isolate_scope(isolate);
+ v8::Locker locker(isolate);
+
+ DenoIsolate* d = DenoIsolate::FromIsolate(isolate);
+
+ v8::EscapableHandleScope handle_scope(isolate);
+
+ deno_mod referrer_id = referrer->GetIdentityHash();
+ auto* referrer_info = d->GetModuleInfo(referrer_id);
+ CHECK_NOT_NULL(referrer_info);
+
+ for (int i = 0; i < referrer->GetModuleRequestsLength(); i++) {
+ Local<String> req = referrer->GetModuleRequest(i);
+
+ if (req->Equals(context, specifier).ToChecked()) {
+ v8::String::Utf8Value req_utf8(isolate, req);
+ std::string req_str(*req_utf8);
+
+ deno_mod id = d->resolve_cb_(d->user_data_, req_str.c_str(), referrer_id);
+
+ // Note: id might be zero, in which case GetModuleInfo will return
+ // nullptr.
+ auto* info = d->GetModuleInfo(id);
+ if (info == nullptr) {
+ char buf[64 * 1024];
+ snprintf(buf, sizeof(buf), "Cannot resolve module \"%s\" from \"%s\"",
+ req_str.c_str(), referrer_info->name.c_str());
+ isolate->ThrowException(deno::v8_str(buf));
+ break;
+ } else {
+ Local<Module> child_mod = info->handle.Get(isolate);
+ return handle_scope.Escape(child_mod);
+ }
+ }
+ }
+
+ return v8::MaybeLocal<v8::Module>(); // Error
+}
+
+extern "C" {
+
+deno_mod deno_mod_new(Deno* d_, bool main, const char* name_cstr,
+ const char* source_cstr) {
+ auto* d = unwrap(d_);
+ return d->RegisterModule(main, name_cstr, source_cstr);
+}
+
+const char* deno_mod_name(Deno* d_, deno_mod id) {
+ auto* d = unwrap(d_);
+ auto* info = d->GetModuleInfo(id);
+ return info->name.c_str();
+}
+
+size_t deno_mod_imports_len(Deno* d_, deno_mod id) {
+ auto* d = unwrap(d_);
+ auto* info = d->GetModuleInfo(id);
+ return info->import_specifiers.size();
+}
+
+const char* deno_mod_imports_get(Deno* d_, deno_mod id, size_t index) {
+ auto* d = unwrap(d_);
+ auto* info = d->GetModuleInfo(id);
+ if (info == nullptr || index >= info->import_specifiers.size()) {
+ return nullptr;
+ } else {
+ return info->import_specifiers[index].c_str();
+ }
+}
+
+void deno_mod_instantiate(Deno* d_, void* user_data, deno_mod id,
+ deno_resolve_cb cb) {
+ auto* d = unwrap(d_);
+ deno::UserDataScope user_data_scope(d, user_data);
+
+ auto* isolate = d->isolate_;
+ v8::Isolate::Scope isolate_scope(isolate);
+ v8::Locker locker(isolate);
+ v8::HandleScope handle_scope(isolate);
+ auto context = d->context_.Get(d->isolate_);
+ v8::Context::Scope context_scope(context);
+
+ v8::TryCatch try_catch(isolate);
+ {
+ CHECK_NULL(d->resolve_cb_);
+ d->resolve_cb_ = cb;
+ {
+ auto* info = d->GetModuleInfo(id);
+ if (info == nullptr) {
+ return;
+ }
+ Local<Module> module = info->handle.Get(isolate);
+ if (module->GetStatus() == Module::kErrored) {
+ return;
+ }
+ auto maybe_ok = module->InstantiateModule(context, ResolveCallback);
+ CHECK(maybe_ok.IsJust() || try_catch.HasCaught());
+ }
+ d->resolve_cb_ = nullptr;
+ }
+
+ if (try_catch.HasCaught()) {
+ HandleException(context, try_catch.Exception());
+ }
+}
+
+void deno_mod_evaluate(Deno* d_, void* user_data, deno_mod id) {
+ auto* d = unwrap(d_);
+ deno::UserDataScope user_data_scope(d, user_data);
+
+ auto* isolate = d->isolate_;
+ v8::Isolate::Scope isolate_scope(isolate);
+ v8::Locker locker(isolate);
+ v8::HandleScope handle_scope(isolate);
+ auto context = d->context_.Get(d->isolate_);
+ v8::Context::Scope context_scope(context);
+
+ auto* info = d->GetModuleInfo(id);
+ Local<Module> module = info->handle.Get(isolate);
+
+ CHECK_EQ(Module::kInstantiated, module->GetStatus());
+
+ auto maybe_result = module->Evaluate(context);
+ if (maybe_result.IsEmpty()) {
+ CHECK_EQ(Module::kErrored, module->GetStatus());
+ HandleException(context, module->GetException());
+ }
+}
+
+} // extern "C"