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#include <node.h>
#include <node_script.h>
#include <assert.h>
using namespace v8;
using namespace node;
Persistent<FunctionTemplate> node::Context::constructor_template;
void node::Context::Initialize (Handle<Object> target) {
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(node::Context::New);
constructor_template = Persistent<FunctionTemplate>::New(t);
constructor_template->InstanceTemplate()->SetInternalFieldCount(1);
constructor_template->SetClassName(String::NewSymbol("Context"));
target->Set(String::NewSymbol("Context"), constructor_template->GetFunction());
}
Handle<Value> node::Context::New (const Arguments& args) {
HandleScope scope;
node::Context *t = new node::Context();
t->Wrap(args.This());
return args.This();
}
node::Context::Context() : ObjectWrap() {
context_ = v8::Context::New();
}
node::Context::~Context() {
context_.Dispose();
}
Local<Object> node::Context::NewInstance() {
Local<Object> context = constructor_template->GetFunction()->NewInstance();
return context;
}
v8::Persistent<v8::Context> node::Context::GetV8Context() {
return context_;
}
Persistent<FunctionTemplate> node::Script::constructor_template;
void node::Script::Initialize (Handle<Object> target) {
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(node::Script::New);
constructor_template = Persistent<FunctionTemplate>::New(t);
constructor_template->InstanceTemplate()->SetInternalFieldCount(1);
constructor_template->SetClassName(String::NewSymbol("Script"));
NODE_SET_PROTOTYPE_METHOD(constructor_template, "createContext", node::Script::CreateContext);
NODE_SET_PROTOTYPE_METHOD(constructor_template, "runInContext", node::Script::RunInContext);
NODE_SET_PROTOTYPE_METHOD(constructor_template, "runInThisContext", node::Script::RunInThisContext);
NODE_SET_PROTOTYPE_METHOD(constructor_template, "runInNewContext", node::Script::RunInNewContext);
NODE_SET_METHOD(constructor_template, "createContext", node::Script::CreateContext);
NODE_SET_METHOD(constructor_template, "runInContext", node::Script::CompileRunInContext);
NODE_SET_METHOD(constructor_template, "runInThisContext", node::Script::CompileRunInThisContext);
NODE_SET_METHOD(constructor_template, "runInNewContext", node::Script::CompileRunInNewContext);
target->Set(String::NewSymbol("Script"), constructor_template->GetFunction());
}
Handle<Value> node::Script::New (const Arguments& args) {
HandleScope scope;
node::Script *t = new node::Script();
t->Wrap(args.Holder());
return
node::Script::EvalMachine<compileCode, thisContext, wrapExternal>(args);
}
node::Script::~Script() {
script_.Dispose();
}
Handle<Value> node::Script::CreateContext (const Arguments& args) {
HandleScope scope;
Local<v8::Object> context = node::Context::NewInstance();
if (args.Length() > 0) {
Local<Object> sandbox = args[0]->ToObject();
Local<Array> keys = sandbox->GetPropertyNames();
for (int i = 0; i < keys->Length(); i++) {
Handle<String> key = keys->Get(Integer::New(i))->ToString();
Handle<Value> value = sandbox->Get(key);
context->Set(key, value);
}
}
return scope.Close(context);
}
Handle<Value> node::Script::RunInContext (const Arguments& args) {
return
node::Script::EvalMachine<unwrapExternal, userContext, returnResult>(args);
}
Handle<Value> node::Script::RunInThisContext (const Arguments& args) {
return
node::Script::EvalMachine<unwrapExternal, thisContext, returnResult>(args);
}
Handle<Value> node::Script::RunInNewContext(const Arguments& args) {
return
node::Script::EvalMachine<unwrapExternal, newContext, returnResult>(args);
}
Handle<Value> node::Script::CompileRunInContext (const Arguments& args) {
return
node::Script::EvalMachine<compileCode, userContext, returnResult>(args);
}
Handle<Value> node::Script::CompileRunInThisContext (const Arguments& args) {
return
node::Script::EvalMachine<compileCode, thisContext, returnResult>(args);
}
Handle<Value> node::Script::CompileRunInNewContext(const Arguments& args) {
return
node::Script::EvalMachine<compileCode, newContext, returnResult>(args);
}
template <node::Script::EvalInputFlags iFlag,
node::Script::EvalContextFlags cFlag,
node::Script::EvalOutputFlags oFlag>
Handle<Value> node::Script::EvalMachine(const Arguments& args) {
HandleScope scope;
if (iFlag == compileCode && args.Length() < 1) {
return ThrowException(Exception::TypeError(
String::New("needs at least 'code' argument.")));
}
const int sbIndex = iFlag == compileCode ? 1 : 0;
if (cFlag == userContext && args.Length() < (sbIndex + 1)) {
return ThrowException(Exception::TypeError(
String::New("needs a 'context' argument.")));
}
Local<String> code;
if (iFlag == compileCode) code = args[0]->ToString();
Local<Object> sandbox;
if (cFlag == newContext) {
sandbox = args.Length() > sbIndex ? args[sbIndex]->ToObject() : Object::New();
} else if (cFlag == userContext) {
sandbox = args[sbIndex]->ToObject();
}
const int fnIndex = sbIndex + (cFlag == newContext ? 1 : 0);
Local<String> filename = args.Length() > fnIndex
? args[fnIndex]->ToString()
: String::New("evalmachine.<anonymous>");
Persistent<v8::Context> context;
Local<Array> keys;
unsigned int i;
if (cFlag == newContext) {
// Create the new context
context = v8::Context::New();
} else if (cFlag == userContext) {
// Use the passed in context
Local<Object> contextArg = args[sbIndex]->ToObject();
node::Context *nContext = ObjectWrap::Unwrap<node::Context>(sandbox);
context = nContext->GetV8Context();
}
// New and user context share code. DRY it up.
if (cFlag == userContext || cFlag == newContext) {
// Enter the context
context->Enter();
// Copy everything from the passed in sandbox (either the persistent
// context for runInContext(), or the sandbox arg to runInNewContext()).
keys = sandbox->GetPropertyNames();
for (i = 0; i < keys->Length(); i++) {
Handle<String> key = keys->Get(Integer::New(i))->ToString();
Handle<Value> value = sandbox->Get(key);
context->Global()->Set(key, value);
}
}
// Catch errors
TryCatch try_catch;
Handle<Value> result;
Handle<v8::Script> script;
if (iFlag == compileCode) {
// well, here node::Script::New would suffice in all cases, but maybe
// Compile has a little better performance where possible
script = oFlag == returnResult ? v8::Script::Compile(code, filename)
: v8::Script::New(code, filename);
if (script.IsEmpty()) {
// Hack because I can't get a proper stacktrace on SyntaxError
return try_catch.ReThrow();
}
} else {
node::Script *nScript = ObjectWrap::Unwrap<node::Script>(args.Holder());
if (!nScript) {
return ThrowException(Exception::Error(
String::New("Must be called as a method of Script.")));
} else if (nScript->script_.IsEmpty()) {
return ThrowException(Exception::Error(
String::New("'this' must be a result of previous new Script(code) call.")));
}
script = nScript->script_;
}
if (oFlag == returnResult) {
result = script->Run();
if (result.IsEmpty()) return try_catch.ReThrow();
} else {
node::Script *nScript = ObjectWrap::Unwrap<node::Script>(args.Holder());
if (!nScript) {
return ThrowException(Exception::Error(
String::New("Must be called as a method of Script.")));
}
nScript->script_ = Persistent<v8::Script>::New(script);
result = args.This();
}
if (cFlag == userContext || cFlag == newContext) {
// success! copy changes back onto the sandbox object.
keys = context->Global()->GetPropertyNames();
for (i = 0; i < keys->Length(); i++) {
Handle<String> key = keys->Get(Integer::New(i))->ToString();
Handle<Value> value = context->Global()->Get(key);
sandbox->Set(key, value);
}
}
if (cFlag == newContext) {
// Clean up, clean up, everybody everywhere!
context->DetachGlobal();
context->Exit();
context.Dispose();
} else if (cFlag == userContext) {
// Exit the passed in context.
context->Exit();
}
return result == args.This() ? result : scope.Close(result);
}
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