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node/src/node_script.cc at fe74283e1d29f64be38e42ae1be989a13050f3e4 · kirm/node · GitHub
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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) {
if
(!args.
IsConstructCall
()) {
return
FromConstructorTemplate
(constructor_template, 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
(
uint32_t
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[sbIndex]->
IsObject
() ? 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);
if
(value == sandbox) { value = context->
Global
(); }
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);
if
(value == context->
Global
()) { value = sandbox; }
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);
}
void
node::InitEvals
(Handle<Object> target) {
HandleScope scope;
node::Context::Initialize
(target);
node::Script::Initialize
(target);
}
NODE_MODULE
(node_evals, node::InitEvals);
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