/*----------------------------------------------------------------------------  ChucK Concurrent, On-the-fly Audio Programming Language    Compiler and Virtual Machine   Copyright (c) 2004 Ge Wang and Perry R. Cook.  All rights reserved.    http://chuck.stanford.edu/    http://chuck.cs.princeton.edu/   This program is free software; you can redistribute it and/or modify  it under the terms of the GNU General Public License as published by  the Free Software Foundation; either version 2 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 General Public License for more details.   You should have received a copy of the GNU General Public License  along with this program; if not, write to the Free Software  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  U.S.A.-----------------------------------------------------------------------------*/ //-----------------------------------------------------------------------------// name: chuck_dl.cpp// desc: chuck dynamic linking header//// authors: Ge Wang (ge@ccrma.stanford.edu | gewang@cs.princeton.edu)//          Ari Lazier (alazier@cs.princeton.edu)//          Spencer Salazar (spencer@ccrma.stanford.edu)// mac os code based on apple's open source//// date: spring 2004 - 1.1//       spring 2005 - 1.2//-----------------------------------------------------------------------------#include "chuck_dl.h"#include "chuck_errmsg.h"#include "chuck_type.h"#include "chuck_instr.h"#include "chuck_compile.h"#include "chuck_vm.h"#include "chuck.h"#include <sstream>using namespace std;    #if defined(__MACOSX_CORE__)char g_default_chugin_path[] = "/usr/local/lib/chuck:/Library/Application Support/ChucK/ChuGins:~/Library/Application Support/ChucK/ChuGins";#elif defined(__PLATFORM_WIN32__)char g_default_chugin_path[] = "C:\\WINDOWS\\system32\\ChucK;C:\\Program Files\\ChucK\\chugins;C:\\Program Files (x86)\\ChucK\\chugins";#else // Linux/Cygwinchar g_default_chugin_path[] = "/usr/local/lib/chuck";#endif char g_chugin_path_envvar[] = "CHUCK_CHUGIN_PATH";    //-----------------------------------------------------------------------------// internal implementation of query functions//-----------------------------------------------------------------------------   t_CKUINT ck_builtin_declversion() { return CK_DLL_VERSION; }   //-----------------------------------------------------------------------------// name: ck_setname()// desc: set the name of the module//-----------------------------------------------------------------------------void CK_DLL_CALL ck_setname( Chuck_DL_Query * query, const char * name ){    // set the name    query->dll_name = name;}    //-----------------------------------------------------------------------------// name: ck_begin_class()// desc: begin class/namespace, can be nexted//-----------------------------------------------------------------------------void CK_DLL_CALL ck_begin_class( Chuck_DL_Query * query, const char * name, const char * parent ){    // find parent mvar offset    t_CKINT parent_offset = 0;    if(parent && parent[0] != '\0')    {        a_Id_List parent_path = str2list( parent );        if( !parent_path )        {            // error            EM_error2( 0, "class import: ck_begin_class: unknown parent type '%s'",                      query->curr_class->name.c_str(), name, parent );            return;        }         Chuck_Type * ck_parent_type = type_engine_find_type( query->env(), parent_path );         delete_id_list( parent_path );         if( !ck_parent_type )        {            // error            EM_error2( 0, "class import: ck_begin_class: unable to find parent type '%s'", ck_parent_type );            return;        }         parent_offset = ck_parent_type->obj_size;    }     // push    query->stack.push_back( query->curr_class );    // allocate    Chuck_DL_Class * c = new Chuck_DL_Class;     // add class    if( query->curr_class )        // recursive        query->curr_class->classes.push_back( c );    // 1.3.2.0: do not save class for later import (will import it on class close)//    else//        // first level//        query->classes.push_back( c );     // remember info    c->name = name;    c->parent = parent;    c->current_mvar_offset = parent_offset;     // curr    query->curr_class = c;    query->curr_func = NULL;}    //-----------------------------------------------------------------------------// name: ck_add_ctor()// desc: add constructor, can be followed by add_arg//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_ctor( Chuck_DL_Query * query, f_ctor ctor ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_ctor invoked without begin_class..." );        return;    }     // allocate    Chuck_DL_Func * f = new Chuck_DL_Func;    f->name = "[ctor]";    f->type = "void";    f->ctor = ctor;     // add    query->curr_class->ctors.push_back( f );    query->curr_func = f;}    //-----------------------------------------------------------------------------// name: ck_add_dtor()// add destructor, no args allowed//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_dtor( Chuck_DL_Query * query, f_dtor dtor ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_dtor invoked without begin_class..." );        return;    }     // make sure there are no duplicates    if( query->curr_class->dtor )    {        // error        EM_error2( 0, "class import: multiple dtor added ..." );        return;    }     // allocate    Chuck_DL_Func * f = new Chuck_DL_Func;    f->name = "[dtor]";    f->type = "void";    f->dtor = dtor;     // add    query->curr_class->dtor = f;    // set    query->curr_func = NULL;}    //-----------------------------------------------------------------------------// name: ck_add_mfun()// desc: add member function, can be followed by add_arg//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_mfun( Chuck_DL_Query * query, f_mfun addr,                              const char * type, const char * name ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_mfun invoked without begin_class..." );        return;    }     // allocate    Chuck_DL_Func * f = new Chuck_DL_Func;    f->name = name;    f->type = type;    f->mfun = addr;     // add    query->curr_class->mfuns.push_back( f );    query->curr_func = f;}    //-----------------------------------------------------------------------------// name: ck_add_sfun()// desc: add static function, can be followed by add_arg//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_sfun( Chuck_DL_Query * query, f_sfun addr,                              const char * type, const char * name ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_sfun invoked without begin_class..." );        return;    }     // allocate    Chuck_DL_Func * f = new Chuck_DL_Func;    f->name = name;    f->type = type;    f->sfun = addr;     // add    query->curr_class->sfuns.push_back( f );    query->curr_func = f;}    //-----------------------------------------------------------------------------// name: ck_add_mvar()// desc: add member var//-----------------------------------------------------------------------------t_CKUINT CK_DLL_CALL ck_add_mvar( Chuck_DL_Query * query,                                  const char * type, const char * name,                                  t_CKBOOL is_const ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_mvar invoked without begin_class..." );        return CK_INVALID_OFFSET;    }     a_Id_List path = str2list( type );    if( !path )    {        // error        EM_error2( 0, "class import: add_mvar: mvar %s.%s has unknown type '%s'",                   query->curr_class->name.c_str(), name, type );        return CK_INVALID_OFFSET;    }     Chuck_Type * ck_type = type_engine_find_type( query->env(), path );     delete_id_list( path );     if( !ck_type )    {        // error        EM_error2( 0, "class import: add_mvar: unable to find type '%s'", type );        return CK_INVALID_OFFSET;    }     // allocate    Chuck_DL_Value * v = new Chuck_DL_Value;    v->name = name;    v->type = type;    v->is_const = is_const;     // add    query->curr_class->mvars.push_back( v );    query->curr_func = NULL;    query->last_var = v;     t_CKUINT offset = query->curr_class->current_mvar_offset;    query->curr_class->current_mvar_offset = type_engine_next_offset( query->curr_class->current_mvar_offset,                                                                      ck_type );     return offset;}    //-----------------------------------------------------------------------------// name: ck_add_svar()// desc: add static var//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_svar( Chuck_DL_Query * query, const char * type, const char * name,                              t_CKBOOL is_const, void * addr ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_svar invoked without begin_class..." );        return;    }     // allocate    Chuck_DL_Value * v = new Chuck_DL_Value;    v->name = name;    v->type = type;    v->is_const = is_const;    v->static_addr = addr;     // add    query->curr_class->svars.push_back( v );    query->curr_func = NULL;     query->last_var = v;}    //-----------------------------------------------------------------------------// name: ck_add_arg()// desc: add argument to function//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_arg( Chuck_DL_Query * query, const char * type, const char * name ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_arg invoked without begin_class..." );        return;    }     // make sure there is function    if( !query->curr_func )    {        // error        EM_error2( 0, "class import: add_arg can only follow 'ctor', 'mfun', 'sfun', 'arg'..." );        return;    }     // allocate    Chuck_DL_Value * v = new Chuck_DL_Value;    v->name = name;    v->type = type;     // add    query->curr_func->args.push_back( v );}    //-----------------------------------------------------------------------------// name: ck_add_ugen_func()// desc: (ugen only) add tick and pmsg functions//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_ugen_func( Chuck_DL_Query * query, f_tick ugen_tick, f_pmsg ugen_pmsg, t_CKUINT num_in, t_CKUINT num_out ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_ugen_func invoked without begin_class..." );        return;    }     // make sure tick not defined already    if( query->curr_class->ugen_tick && ugen_tick )    {        // error        EM_error2( 0, "class import: ugen_tick already defined..." );        return;    }     // make sure pmsg not defined already    if( query->curr_class->ugen_pmsg && ugen_pmsg )    {        // error        EM_error2( 0, "class import: ugen_pmsg already defined..." );        return;    }     // set    if( ugen_tick ) query->curr_class->ugen_tick = ugen_tick;    if( ugen_pmsg ) query->curr_class->ugen_pmsg = ugen_pmsg;    query->curr_class->ugen_num_in = num_in;    query->curr_class->ugen_num_out = num_out;    query->curr_func = NULL;}    //-----------------------------------------------------------------------------// name: ck_add_ugen_funcf()// desc: (ugen only) add tick and pmsg functions//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_ugen_funcf( Chuck_DL_Query * query, f_tickf ugen_tickf, f_pmsg ugen_pmsg, t_CKUINT num_in, t_CKUINT num_out ){    // make sure there is class    if( !query->curr_class )    {        // error        EM_error2( 0, "class import: add_ugen_func invoked without begin_class..." );        return;    }     // make sure tick not defined already    if( query->curr_class->ugen_tickf && ugen_tickf )    {        // error        EM_error2( 0, "class import: ugen_tick already defined..." );        return;    }     // make sure pmsg not defined already    if( query->curr_class->ugen_pmsg && ugen_pmsg )    {        // error        EM_error2( 0, "class import: ugen_pmsg already defined..." );        return;    }     // set    if( ugen_tickf ) query->curr_class->ugen_tickf = ugen_tickf;    if( ugen_pmsg ) query->curr_class->ugen_pmsg = ugen_pmsg;    query->curr_class->ugen_num_in = num_in;    query->curr_class->ugen_num_out = num_out;    query->curr_func = NULL;}    //-----------------------------------------------------------------------------// name: ck_add_ugen_funcf_auto_num_channels()// desc: (ugen only) add tick and pmsg functions. specify num channels by vm.//-----------------------------------------------------------------------------void CK_DLL_CALL ck_add_ugen_funcf_auto_num_channels( Chuck_DL_Query * query,    f_tickf ugen_tickf, f_pmsg ugen_pmsg ){    ck_add_ugen_funcf( query, ugen_tickf, ugen_pmsg,        query->vm()->m_num_adc_channels,        query->vm()->m_num_dac_channels    );}    //-----------------------------------------------------------------------------// name: ck_add_ugen_ctrl()// desc: (ugen only) add ctrl parameters//-----------------------------------------------------------------------------//void CK_DLL_CALL ck_add_ugen_ctrl( Chuck_DL_Query * query, f_ctrl ugen_ctrl, f_cget ugen_cget,//                                   const char * type, const char * name )//{//    // this is no longer used//    EM_error2( 0, "class import: obselete ck_add_ugen_ctrl invoked..." );//    return;//

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