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therubyracer/ext/v8/v8_template.cpp
2011-04-29 16:17:15 -07:00

327 lines
13 KiB
C++

#include "rr.h"
#include "v8_handle.h"
#include "v8_function.h"
#include "v8_template.h"
#include "v8_external.h"
#include "v8_callbacks.h"
using namespace v8;
namespace {
VALUE ObjectTemplateClass;
VALUE FunctionTemplateClass;
Handle<Value> make_v8_data(int argc, VALUE *argv, const char* argf) {
VALUE handler; VALUE data;
rb_scan_args(argc, argv, argf, &handler, &data);
Handle<Array> v8_data = Array::New(2);
v8_data->Set(0, External::New((void*)handler));
v8_data->Set(1, External::New((void*)data));
return v8_data;
}
Persistent<Template> tmpl(VALUE self) {
return rr_v8_handle<Template>(self);
}
Persistent<ObjectTemplate> obj(VALUE self) {
return rr_v8_handle<ObjectTemplate>(self);
}
Persistent<FunctionTemplate> func(VALUE self) {
return rr_v8_handle<FunctionTemplate>(self);
}
VALUE Set(VALUE self, VALUE name, VALUE value) {
HandleScope handles;
Local<String> key = rr_rb2v8(name)->ToString();
Persistent<Data> data = rr_v8_handle<Data>(value);
tmpl(self)->Set(key, data);
return Qnil;
}
Handle<Value> RubyInvocationCallback(const Arguments& args) {
Local<Array> v8_data = Local<Array>::Cast(args.Data());
VALUE handler = (VALUE)External::Unwrap(v8_data->Get(0));
VALUE data = (VALUE)External::Unwrap(v8_data->Get(1));
VALUE rb_args = rr_v82rb(args);
rb_iv_set(rb_args, "data", data);
if (RTEST(handler)) {
VALUE result = rb_funcall(handler, rb_intern("call"), 1, rb_args);
return rr_rb2v8(result);
} else {
return Handle<Value>();
}
}
namespace Obj {
VALUE accessor_info_get(const AccessorInfo& info, uint32_t index) {
Handle<Array> data = Handle<Array>::Cast(info.Data());
return (VALUE)External::Unwrap(data->Get(index));
}
VALUE accessor_info_rb(const AccessorInfo& info) {
Handle<Array> data = Handle<Array>::Cast(info.Data());
VALUE rb_data = accessor_info_get(info, 5);
VALUE rb_info = rr_v82rb(info);
rb_iv_set(rb_info, "data", rb_data);
return rb_info;
}
Local<Array> accessor_info_data(VALUE getter, VALUE setter, VALUE query, VALUE deleter, VALUE enumerator, VALUE data) {
Local<Array> v8_data = Array::New(6);
v8_data->Set(0, External::New((void*)getter));
v8_data->Set(1, External::New((void*)setter));
v8_data->Set(2, External::New((void*)query));
v8_data->Set(3, External::New((void*)deleter));
v8_data->Set(4, External::New((void*)enumerator));
v8_data->Set(5, External::New((void*)data));
return v8_data;
}
/**
* NamedProperty[Getter|Setter] are used as interceptors on object.
* See ObjectTemplate::SetNamedPropertyHandler.
*/
Handle<Value> RubyNamedPropertyGetter(Local<String> property, const AccessorInfo& info) {
VALUE getter = accessor_info_get(info, 0);
return rr_rb2v8(rb_funcall(getter, rb_intern("call"), 2, rr_v82rb(property), accessor_info_rb(info)));
}
/**
* Returns the value if the setter intercepts the request.
* Otherwise, returns an empty handle.
*/
Handle<Value> RubyNamedPropertySetter(Local<String> property, Local<Value> value, const AccessorInfo& info) {
VALUE setter = accessor_info_get(info, 1);
VALUE result = rb_funcall(setter, rb_intern("call"), 3, rr_v82rb(property), rr_v82rb(value), accessor_info_rb(info));
return rr_rb2v8(result);
}
/**
* Returns a non-empty handle if the interceptor intercepts the request.
* The result is true if the property exists and false otherwise.
*/
Handle<Integer> RubyNamedPropertyQuery(Local<String> property, const AccessorInfo& info) {
VALUE query = accessor_info_get(info, 2);
VALUE result = rb_funcall(query, rb_intern("call"), 2, rr_v82rb(property), accessor_info_rb(info));
Handle<Value> intercepts = rr_rb2v8(result);
return intercepts.IsEmpty() ? Handle<Integer>() : Integer::New(None);
}
/**
* Returns a non-empty handle if the deleter intercepts the request.
* The return value is true if the property could be deleted and false
* otherwise.
*/
Handle<Boolean> RubyNamedPropertyDeleter(Local<String> property, const AccessorInfo& info) {
VALUE deleter = accessor_info_get(info, 3);
VALUE result = rb_funcall(deleter, rb_intern("call"), 2, rr_v82rb(property), accessor_info_rb(info));
Handle<Value> intercepts = rr_rb2v8(result);
return intercepts.IsEmpty() ? Handle<Boolean>() : intercepts->ToBoolean();
}
/**
* Returns an array containing the names of the properties the named
* property getter intercepts.
*/
Handle<Array> RubyNamedPropertyEnumerator(const AccessorInfo& info) {
VALUE enumerator = accessor_info_get(info, 4);
VALUE result = rb_funcall(enumerator, rb_intern("call"), 1, accessor_info_rb(info));
Handle<Value> v(rr_rb2v8(result));
if (v.IsEmpty()) {
return Array::New();
} else if (!v->IsArray()) {
Local<Array> a = Array::New();
a->Set(Integer::New(0), v->ToString());
return a;
} else {
return (Handle<Array>)Array::Cast(*v);
}
}
/**
* Returns the value of the property if the getter intercepts the
* request. Otherwise, returns an empty handle.
*/
Handle<Value> RubyIndexedPropertyGetter(uint32_t index, const AccessorInfo& info) {
VALUE getter = accessor_info_get(info, 0);
VALUE result = rb_funcall(getter, rb_intern("call"), 2, UINT2NUM(index), accessor_info_rb(info));
return rr_rb2v8(result);
}
/**
* Returns the value if the setter intercepts the request.
* Otherwise, returns an empty handle.
*/
Handle<Value> RubyIndexedPropertySetter(uint32_t index, Local<Value> value, const AccessorInfo& info) {
VALUE setter = accessor_info_get(info, 1);
VALUE result = rb_funcall(setter, rb_intern("call"), 3, UINT2NUM(index), rr_v82rb(value), accessor_info_rb(info));
return rr_rb2v8(result);
}
/**
* Returns a non-empty handle if the interceptor intercepts the request.
* The result is true if the property exists and false otherwise.
*/
Handle<Integer> RubyIndexedPropertyQuery(uint32_t index, const AccessorInfo& info) {
VALUE query = accessor_info_get(info, 2);
VALUE result = rb_funcall(query, rb_intern("call"), 2, UINT2NUM(index), accessor_info_rb(info));
Handle<Value> intercepts = rr_rb2v8(result);
return intercepts.IsEmpty() ? Handle<Integer>() : Integer::New(None);
}
/**
* Returns a non-empty handle if the deleter intercepts the request.
* The return value is true if the property could be deleted and false
* otherwise.
*/
Handle<Boolean> RubyIndexedPropertyDeleter(uint32_t index, const AccessorInfo& info) {
VALUE deleter = accessor_info_get(info, 3);
VALUE result = rb_funcall(deleter, rb_intern("call"), 2, UINT2NUM(index), accessor_info_rb(info));
Handle<Value> intercepts = rr_rb2v8(result);
return intercepts.IsEmpty() ? Handle<Boolean>() : intercepts->ToBoolean();
}
/**
* Returns an array containing the indices of the properties the
* indexed property getter intercepts.
*/
Handle<Array> RubyIndexedPropertyEnumerator(const AccessorInfo& info) {
VALUE enumerator = accessor_info_get(info, 4);
VALUE result = rb_funcall(enumerator, rb_intern("call"), 1, accessor_info_rb(info));
Handle<Value> v(rr_rb2v8(result));
if (v.IsEmpty()) {
return Array::New();
} else if (!v->IsArray()) {
Local<Array> a = Array::New();
a->Set(Integer::New(0), v->ToString());
return a;
} else {
return (Handle<Array>)Array::Cast(*v);
}
}
VALUE New(VALUE rbclass) {
HandleScope handles;
return rr_v8_handle_new(rbclass, ObjectTemplate::New());
}
VALUE NewInstance(VALUE self) {
HandleScope scope;
if (!Context::InContext()) {
rb_raise(rb_eScriptError, "ObjectTemplate::NewInstance() called without an entered Context");
return Qnil;
}
Local<Object> object(obj(self)->NewInstance());
if (object.IsEmpty()) {
rb_raise(rb_eFatal, "V8 returned empty handle on call to ObjectTemplate::NewInstance()");
return Qnil;
}
return rr_v82rb(object);
}
VALUE SetNamedPropertyHandler(VALUE self, VALUE getter, VALUE setter, VALUE query, VALUE deleter, VALUE enumerator, VALUE data) {
HandleScope handles;
if (!RTEST(getter)) {
rb_raise(rb_eArgError, "you must supply at least a getter to V8::C::ObjectTemplate#SetNamedPropertyHandler()");
return Qnil;
}
obj(self)->SetNamedPropertyHandler(
RubyNamedPropertyGetter,
RTEST(setter) ? RubyNamedPropertySetter : 0,
RTEST(query) ? RubyNamedPropertyQuery : 0,
RTEST(deleter) ? RubyNamedPropertyDeleter : 0,
RTEST(enumerator) ? RubyNamedPropertyEnumerator : 0,
accessor_info_data(getter, setter, query, deleter, enumerator, data)
);
return Qnil;
}
VALUE SetIndexedPropertyHandler(VALUE self, VALUE getter, VALUE setter, VALUE query, VALUE deleter, VALUE enumerator, VALUE data) {
HandleScope scope;
if (!RTEST(getter)) {
rb_raise(rb_eArgError, "you must supply at least a getter to V8::C::ObjectTemplate#SetNamedPropertyHandler()");
return Qnil;
}
obj(self)->SetIndexedPropertyHandler(
RubyIndexedPropertyGetter,
RTEST(setter) ? RubyIndexedPropertySetter : 0,
RTEST(query) ? RubyIndexedPropertyQuery : 0,
RTEST(deleter) ? RubyIndexedPropertyDeleter : 0,
RTEST(enumerator) ? RubyIndexedPropertyEnumerator : 0,
accessor_info_data(getter, setter, query, deleter, enumerator, data)
);
return Qnil;
}
VALUE SetCallAsFunctionHandler(int argc, VALUE *argv, VALUE self) {
Handle<Value> v8_data = make_v8_data(argc, argv, "11");
obj(self)->SetCallAsFunctionHandler(RubyInvocationCallback, v8_data);
return Qnil;
}
}
namespace Func {
VALUE New(int argc, VALUE *argv, VALUE self) {
HandleScope h;
Handle<Value> v8_data = make_v8_data(argc, argv, "02");
Local<FunctionTemplate> t = FunctionTemplate::New(RubyInvocationCallback, v8_data);
VALUE handle = rr_v8_handle_new(self,t);
return handle;
}
VALUE SetCallHandler(int argc, VALUE *argv, VALUE self) {
HandleScope h;
Handle<Value> v8_data = make_v8_data(argc, argv, "11");
func(self)->SetCallHandler(RubyInvocationCallback, v8_data);
return Qnil;
}
VALUE PrototypeTemplate(VALUE self) {
HandleScope scope;
return rr_v8_handle_new(ObjectTemplateClass, func(self)->PrototypeTemplate());
}
VALUE InstanceTemplate(VALUE self) {
HandleScope scope;
return rr_v8_handle_new(ObjectTemplateClass, func(self)->InstanceTemplate());
}
VALUE Inherit(VALUE self, VALUE function_template) {
HandleScope scope;
func(self)->Inherit(func(function_template));
return Qnil;
}
VALUE SetClassName(VALUE self, VALUE name) {
HandleScope scope;
func(self)->SetClassName(rr_rb2v8(name)->ToString());
return Qnil;
}
VALUE GetFunction(VALUE self) {
HandleScope handles;
if (!Context::InContext()) {
rb_raise(rb_eScriptError, "calls to FunctionTemplate::GetFunction() require a Context to be entered");
return Qnil;
}
return rr_v82rb(func(self)->GetFunction());
}
}
}
void rr_init_template() {
VALUE Template = rr_define_class("Template", rr_v8_handle_class());
rr_define_method(Template, "Set", Set, 2);
ObjectTemplateClass = rr_define_class("ObjectTemplate", Template);
rr_define_singleton_method(ObjectTemplateClass, "New", Obj::New, 0);
rr_define_method(ObjectTemplateClass, "NewInstance", Obj::NewInstance, 0);
rr_define_method(ObjectTemplateClass, "SetNamedPropertyHandler", Obj::SetNamedPropertyHandler, 6);
rr_define_method(ObjectTemplateClass, "SetIndexedPropertyHandler", Obj::SetIndexedPropertyHandler, 6);
rr_define_method(ObjectTemplateClass, "SetCallAsFunctionHandler", Obj::SetCallAsFunctionHandler, -1);
FunctionTemplateClass = rr_define_class("FunctionTemplate", Template);
rr_define_singleton_method(FunctionTemplateClass, "New", Func::New, -1);
rr_define_method(FunctionTemplateClass, "SetCallHandler", Func::SetCallHandler, -1);
rr_define_method(FunctionTemplateClass, "PrototypeTemplate", Func::PrototypeTemplate, 0);
rr_define_method(FunctionTemplateClass, "InstanceTemplate", Func::InstanceTemplate, 0);
rr_define_method(FunctionTemplateClass, "Inherit", Func::Inherit, 1);
rr_define_method(FunctionTemplateClass, "SetClassName", Func::SetClassName, 1);
rr_define_method(FunctionTemplateClass, "GetFunction", Func::GetFunction, 0);
}