mirror of
https://github.com/matrix-construct/construct
synced 2024-12-29 17:04:03 +01:00
136 lines
3.5 KiB
C++
136 lines
3.5 KiB
C++
// Matrix Construct
|
|
//
|
|
// Copyright (C) Matrix Construct Developers, Authors & Contributors
|
|
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
|
|
//
|
|
// Permission to use, copy, modify, and/or distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice is present in all copies. The
|
|
// full license for this software is available in the LICENSE file.
|
|
|
|
#pragma once
|
|
#define HAVE_IRCD_JS_MODULE_H
|
|
|
|
namespace ircd {
|
|
namespace js {
|
|
|
|
struct module
|
|
:object
|
|
,script
|
|
{
|
|
IRCD_OVERLOAD(yielding)
|
|
|
|
struct trap *trap;
|
|
|
|
object requested() const; // GetRequestedModules()
|
|
void instantiate(); // ModuleDeclarationInstantiation()
|
|
void operator()() const; // ModuleEvaluation()
|
|
|
|
module(yielding_t, const JS::ReadOnlyCompileOptions &, const std::u16string &src, struct trap *const & = nullptr, const bool &instantiate = true);
|
|
module(const JS::ReadOnlyCompileOptions &, const std::u16string &src, struct trap *const & = nullptr, const bool &instantiate = true);
|
|
|
|
static module &our(const object &module); // Get this structure from the record object
|
|
};
|
|
|
|
inline
|
|
module::module(const JS::ReadOnlyCompileOptions &opts,
|
|
const std::u16string &src,
|
|
struct trap *const &trap,
|
|
const bool &instantiate)
|
|
:object{[this, &opts, &src, &instantiate]
|
|
() -> object
|
|
{
|
|
static const auto ownership(JS::SourceBufferHolder::NoOwnership);
|
|
|
|
object ret(object::uninitialized);
|
|
JS::SourceBufferHolder buf(src.data(), src.size(), ownership);
|
|
if(!JS::CompileModule(*cx, opts, buf, &ret))
|
|
throw jserror(jserror::pending);
|
|
|
|
if(unlikely(!ret.get()))
|
|
throw jserror(jserror::pending);
|
|
|
|
JS::SetModuleHostDefinedField(ret, value(value::pointer, this));
|
|
return ret;
|
|
}()}
|
|
,script
|
|
{
|
|
JS::GetModuleScript(*cx, static_cast<object &>(*this))
|
|
}
|
|
,trap{trap}
|
|
{
|
|
if(instantiate)
|
|
this->instantiate();
|
|
}
|
|
|
|
// This constructor compiles the module concurrently by yielding this ircd::ctx.
|
|
// See the yielding_t overload in script.h for details.
|
|
inline
|
|
module::module(yielding_t,
|
|
const JS::ReadOnlyCompileOptions &opts,
|
|
const std::u16string &src,
|
|
struct trap *const &trap,
|
|
const bool &instantiate)
|
|
:object{[this, &opts, &src]
|
|
() -> object
|
|
{
|
|
static const auto ownership(JS::SourceBufferHolder::NoOwnership);
|
|
|
|
auto future(compile_async(opts, src, true));
|
|
void *const token(future.get());
|
|
object ret(object::uninitialized);
|
|
if(!token)
|
|
{
|
|
JS::SourceBufferHolder buf(src.data(), src.size(), ownership);
|
|
if(!JS::CompileModule(*cx, opts, buf, &ret))
|
|
throw jserror(jserror::pending);
|
|
}
|
|
else ret = JS::FinishOffThreadModule(*cx, token);
|
|
|
|
if(unlikely(!ret.get()))
|
|
throw jserror(jserror::pending);
|
|
|
|
JS::SetModuleHostDefinedField(ret, pointer_value(this));
|
|
return ret;
|
|
}()}
|
|
,script
|
|
{
|
|
JS::GetModuleScript(*cx, static_cast<object &>(*this))
|
|
}
|
|
,trap{trap}
|
|
{
|
|
if(instantiate)
|
|
this->instantiate();
|
|
}
|
|
|
|
inline void
|
|
module::instantiate()
|
|
{
|
|
if(!JS::ModuleDeclarationInstantiation(*cx, static_cast<object &>(*this)))
|
|
throw jserror(jserror::pending);
|
|
}
|
|
|
|
inline void
|
|
module::operator()()
|
|
const
|
|
{
|
|
if(!JS::ModuleEvaluation(*cx, static_cast<const object &>(*this)))
|
|
throw jserror(jserror::pending);
|
|
}
|
|
|
|
inline object
|
|
module::requested()
|
|
const
|
|
{
|
|
return JS::GetRequestedModules(*cx, static_cast<const object &>(*this));
|
|
}
|
|
|
|
inline module &
|
|
module::our(const object &module)
|
|
{
|
|
const value priv(JS::GetModuleHostDefinedField(module));
|
|
return *pointer_value<struct module>(priv);
|
|
}
|
|
|
|
} // namespace js
|
|
} // namespace ircd
|