mirror of
https://github.com/matrix-construct/construct
synced 2024-07-05 18:18:35 +02:00
157 lines
3.6 KiB
C++
157 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#define HAVE_IRCD_JS_FUNCTION_H
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namespace ircd {
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namespace js {
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string decompile(const JS::Handle<JSFunction *> &, const bool &pretty = false);
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string display_name(const JSFunction &);
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string name(const JSFunction &);
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struct function
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:JS::Rooted<JSFunction *>
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{
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operator JSObject *() const;
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explicit operator script() const;
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explicit operator string() const;
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value operator()(const object &, const JS::HandleValueArray &args) const;
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value operator()(const object &) const;
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// new function
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function(JS::AutoObjectVector &stack,
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const JS::CompileOptions &opts,
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const char *const &name,
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const std::vector<std::string> &args,
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const std::string &src);
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explicit function(const value &);
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function(JSFunction *const &);
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function(JSFunction &);
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function();
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function(function &&) noexcept;
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function(const function &) = delete;
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function &operator=(function &&) noexcept;
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};
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inline
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function::function()
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:JS::Rooted<JSFunction *>{*cx}
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{
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}
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inline
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function::function(function &&other)
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noexcept
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:JS::Rooted<JSFunction *>{*cx, other}
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{
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other.set(nullptr);
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}
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inline function &
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function::operator=(function &&other)
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noexcept
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{
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set(other.get());
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other.set(nullptr);
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return *this;
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}
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inline
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function::function(JSFunction &func)
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:JS::Rooted<JSFunction *>{*cx, &func}
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{
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}
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inline
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function::function(JSFunction *const &func)
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:JS::Rooted<JSFunction *>{*cx, func}
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{
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if(unlikely(!get()))
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throw internal_error("NULL function");
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}
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inline
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function::function(const value &val)
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:JS::Rooted<JSFunction *>
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{
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*cx,
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JS_ValueToFunction(*cx, val)
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}
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{
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if(!get())
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throw type_error("value is not a function");
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}
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inline
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function::operator string()
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const
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{
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return decompile(*this, true);
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}
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inline
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function::operator script()
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const
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{
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return JS_GetFunctionScript(*cx, *this);
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}
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inline
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function::operator JSObject *()
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const
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{
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const auto ret(JS_GetFunctionObject(get()));
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if(unlikely(!ret))
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throw type_error("function cannot cast to Object");
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return ret;
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}
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inline string
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name(const JSFunction &f)
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{
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const auto ret(JS_GetFunctionId(const_cast<JSFunction *>(&f)));
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return ret? string(ret) : string("<unnamed>");
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}
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inline string
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display_name(const JSFunction &f)
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{
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const auto ret(JS_GetFunctionDisplayId(const_cast<JSFunction *>(&f)));
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return ret? string(ret) : string("<anonymous>");
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}
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inline string
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decompile(const JS::Handle<JSFunction *> &f,
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const bool &pretty)
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{
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uint flags(0);
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flags |= pretty? 0 : JS_DONT_PRETTY_PRINT;
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return JS_DecompileFunction(*cx, f, flags);
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}
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} // namespace js
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} // namespace ircd
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