X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/d15b59f5d4f43d12719c5ce37518246058b405c6..2c4a8bb6222b88ff96fbf25372179646ce15f706:/Internal.hpp?ds=sidebyside diff --git a/Internal.hpp b/Internal.hpp index 0aaa384..e6f2d45 100644 --- a/Internal.hpp +++ b/Internal.hpp @@ -1,97 +1,126 @@ -/* Cycript - Error.hppution Server and Disassembler - * Copyright (C) 2009 Jay Freeman (saurik) +/* Cycript - The Truly Universal Scripting Language + * Copyright (C) 2009-2016 Jay Freeman (saurik) */ -/* Modified BSD License {{{ */ +/* GNU Affero General Public License, Version 3 {{{ */ /* - * Redistribution and use in source and binary - * forms, with or without modification, are permitted - * provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the - * above copyright notice, this list of conditions - * and the following disclaimer. - * 2. Redistributions in binary form must reproduce the - * above copyright notice, this list of conditions - * and the following disclaimer in the documentation - * and/or other materials provided with the - * distribution. - * 3. The name of the author may not be used to endorse - * or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, - * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR - * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF - * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see . +**/ /* }}} */ #ifndef CYCRIPT_INTERNAL_HPP #define CYCRIPT_INTERNAL_HPP -#include "Pooling.hpp" +#include +#include #include +#include #include #include -#include -#include +#include "JavaScript.hpp" +#include "Pooling.hpp" +#include "Utility.hpp" -void Structor_(apr_pool_t *pool, const char *name, const char *types, sig::Type *&type); +struct CYPropertyName; -struct Type_privateData : +JSGlobalContextRef CYGetJSContext(JSContextRef context); +sig::Type *Structor_(CYPool &pool, sig::Aggregate *aggregate); + +struct CYRoot : CYData { + // XXX: without this, CYData is zero-initialized?! + CYRoot() : + CYData() + { + } + + _finline JSValueRef GetPrototype(JSContextRef context) const { + return NULL; + } +}; + +template +struct CYPrivate { static JSClassRef Class_; - ffi_type *ffi_; - sig::Type *type_; + template + static JSObjectRef Make(JSContextRef context, Args_ &&... args) { + Internal_ *internal(new Internal_(cy::Forward(args)...)); + JSObjectRef object(JSObjectMake(context, Class_, internal)); + if (JSValueRef prototype = internal->GetPrototype(context)) + CYSetPrototype(context, object, prototype); + return object; + } + + template + static JSObjectRef Cache(JSContextRef context, Arg_ *arg) { + JSObjectRef global(CYGetGlobalObject(context)); + JSObjectRef cy(CYCastJSObject(context, CYGetProperty(context, global, cy_s))); + + char label[32]; + sprintf(label, "%s%p", Internal_::Cache_, arg); + CYJSString name(label); + + JSValueRef value(CYGetProperty(context, cy, name)); + if (!JSValueIsUndefined(context, value)) + return CYCastJSObject(context, value); + + JSObjectRef object(Make(context, arg)); + CYSetProperty(context, cy, name, object); + return object; + } - void Set(sig::Type *type) { - type_ = new(pool_) sig::Type; - sig::Copy(pool_, *type_, *type); + static Internal_ *Get(JSContextRef context, JSObjectRef object) { + _assert(JSValueIsObjectOfClass(context, object, Class_)); + return static_cast(JSObjectGetPrivate(object)); } +}; + +template +JSClassRef CYPrivate::Class_; + +struct Type_privateData : + CYRoot +{ + ffi_type *ffi_; + sig::Type *type_; - Type_privateData(apr_pool_t *pool, const char *type) : + Type_privateData(const char *type) : ffi_(NULL) { - if (pool != NULL) - pool_ = pool; - sig::Signature signature; - sig::Parse(pool_, &signature, type, &Structor_); + sig::Parse(*pool_, &signature, type, &Structor_); type_ = signature.elements[0].type; } - Type_privateData(sig::Type *type) : - ffi_(NULL) + Type_privateData(const sig::Type &type, ffi_type *ffi = NULL) : + type_(type.Copy(*pool_)) { - if (type != NULL) - Set(type); - } - Type_privateData(sig::Type *type, ffi_type *ffi) { - ffi_ = new(pool_) ffi_type; - sig::Copy(pool_, *ffi_, *ffi); - Set(type); + if (ffi == NULL) + ffi_ = NULL; + else { + ffi_ = new(*pool_) ffi_type; + sig::Copy(*pool_, *ffi_, *ffi); + } } ffi_type *GetFFI() { if (ffi_ == NULL) { - ffi_ = new(pool_) ffi_type; - sig::Element element; element.name = NULL; element.type = type_; @@ -102,7 +131,9 @@ struct Type_privateData : signature.count = 1; ffi_cif cif; - sig::sig_ffi_cif(pool_, &sig::ObjectiveC, &signature, &cif); + sig::sig_ffi_cif(*pool_, false, signature, &cif); + + ffi_ = new(*pool_) ffi_type; *ffi_ = *cif.rtype; } @@ -110,96 +141,119 @@ struct Type_privateData : } }; -struct CYValue : - CYData -{ - void *value_; +struct CYProtect { + private: + JSGlobalContextRef context_; + JSObjectRef object_; - CYValue() { + public: + CYProtect(JSContextRef context, JSObjectRef object) : + context_(CYGetJSContext(context)), + object_(object) + { + //XXX:JSGlobalContextRetain(context_); + if (object_ != NULL) + JSValueProtect(context_, object_); } - CYValue(const void *value) : - value_(const_cast(value)) - { + ~CYProtect() { + if (object_ != NULL) + JSValueUnprotect(context_, object_); + //XXX:JSGlobalContextRelease(context_); } - CYValue(const CYValue &rhs) : - value_(rhs.value_) - { + operator bool() const { + return object_ != NULL; } - virtual Type_privateData *GetType() const { - return NULL; + operator JSContextRef() const { + return context_; + } + + operator JSObjectRef() const { + return object_; } }; -struct CYOwned : - CYValue -{ +class CYBuffer { private: - JSContextRef context_; JSObjectRef owner_; + CYPool *pool_; public: - CYOwned(void *value, JSContextRef context, JSObjectRef owner) : - CYValue(value), - context_(context), - owner_(owner) + CYBuffer(JSContextRef context) : + owner_(CYPrivate::Make(context)), + pool_(CYPrivate::Get(context, owner_)->pool_) { - if (owner_ != NULL) - JSValueProtect(context_, owner_); + auto internal(CYPrivate::Get(context, owner_)); + internal->pool_->malloc(10); } - virtual ~CYOwned() { - if (owner_ != NULL) - JSValueUnprotect(context_, owner_); + operator JSObjectRef() const { + return owner_; } - JSObjectRef GetOwner() const { - return owner_; + operator CYPool *() const { + return pool_; + } + + CYPool *operator ->() const { + return pool_; } }; namespace cy { struct Functor : - CYValue + CYRoot { + public: + static JSClassRef Class_; + + private: + void set() { + sig::sig_ffi_cif(*pool_, variadic_ ? signature_.count : 0, signature_, &cif_); + } + + public: + void (*value_)(); + bool variadic_; sig::Signature signature_; ffi_cif cif_; - Functor(const char *type, void (*value)()) : - CYValue(reinterpret_cast(value)) + Functor(void (*value)(), bool variadic, const sig::Signature &signature) : + value_(value), + variadic_(variadic) { - sig::Parse(pool_, &signature_, type, &Structor_); - sig::sig_ffi_cif(pool_, &sig::ObjectiveC, &signature_, &cif_); + sig::Copy(*pool_, signature_, signature); + set(); } - void (*GetValue())() const { - return reinterpret_cast(value_); + Functor(void (*value)(), const char *encoding) : + value_(value), + variadic_(false) + { + sig::Parse(*pool_, &signature_, encoding, &Structor_); + set(); } - static JSStaticFunction const * const StaticFunctions; + virtual CYPropertyName *GetName(CYPool &pool) const; }; } struct Closure_privateData : cy::Functor { - JSContextRef context_; - JSObjectRef function_; + CYProtect function_; + JSValueRef (*adapter_)(JSContextRef, size_t, JSValueRef[], JSObjectRef); - Closure_privateData(JSContextRef context, JSObjectRef function, const char *type) : - cy::Functor(type, NULL), - context_(context), - function_(function) + Closure_privateData(JSContextRef context, JSObjectRef function, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef), const sig::Signature &signature) : + cy::Functor(NULL, false, signature), + function_(context, function), + adapter_(adapter) { - JSValueProtect(context_, function_); - } - - virtual ~Closure_privateData() { - JSValueUnprotect(context_, function_); } }; -Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const char *type, void (*callback)(ffi_cif *, void *, void **, void *)); +Closure_privateData *CYMakeFunctor_(JSContextRef context, JSObjectRef function, const sig::Signature &signature, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)); +void CYExecuteClosure(ffi_cif *cif, void *result, void **arguments, void *arg, JSValueRef (*adapter)(JSContextRef, size_t, JSValueRef[], JSObjectRef)); #endif/*CYCRIPT_INTERNAL_HPP*/